Cheap flights from Illinois to Houston from $34

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ORD — HOU
Jun 4 — Jun 111

How far in advance should I book a flight from Illinois to Houston?

To save up to 164% on this flight, we recommend booking at least 49 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Illinois to Houston from $255 1-2 weeks out and tickets from $376 for flights departing within the next 72 hours.

What is the cheapest month to fly from Illinois to Houston?

April can be a great time to fly to Houston from Illinois with a flight ticket averaging about $256. Cheapflights users have found deals in the month of April for as cheap as $50. The most expensive prices can be found in the month of March.

What is the cheapest time of day to fly from IL to IAH?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Houston as you normally would.

Cheap United Airlines flights from Illinois to Houston

Explore cheap flight options specifically provided by United Airlines for the route between Illinois and Houston. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the lowest-priced United Airlines flights heading from Illinois to Houston. Make sure to double check the flight details before booking.
Fri 8/309:10 pmORD - IAH
Nonstop2h 49mUnited Airlines
Tue 9/39:30 pmIAH - ORD
Nonstop2h 36mUnited Airlines
Deal found 5/29$209
Fri 8/306:30 pmORD - IAH
Nonstop2h 50mUnited Airlines
Sun 9/19:30 pmIAH - ORD
Nonstop2h 36mUnited Airlines
Deal found 5/30$218
Wed 6/194:55 pmSTL - IAH
Nonstop2h 05mUnited Airlines
Thu 6/208:11 pmIAH - STL
Nonstop2h 04mUnited Airlines
Deal found 5/29$259
Wed 9/186:15 amSTL - IAH
Nonstop2h 07mUnited Airlines
Sun 9/227:45 amIAH - STL
Nonstop2h 06mUnited Airlines
Deal found 5/29$271
Wed 7/38:58 amSTL - IAH
Nonstop2h 17mUnited Airlines
Sun 7/78:13 pmIAH - STL
Nonstop2h 04mUnited Airlines
Deal found 5/30$314
Tue 7/306:20 amSTL - IAH
Nonstop2h 07mUnited Airlines
Tue 8/68:13 pmIAH - STL
Nonstop2h 04mUnited Airlines
Deal found 5/29$315
Wed 6/56:15 amSTL - IAH
Nonstop2h 07mUnited Airlines
Mon 6/178:11 pmIAH - STL
Nonstop2h 04mUnited Airlines
Deal found 5/29$316
Wed 6/55:31 pmSTL - IAH
1 stop5h 59mUnited Airlines
Mon 6/178:11 pmIAH - STL
Nonstop2h 04mUnited Airlines
Deal found 5/29$326
Thu 6/1311:15 amSTL - IAH
Nonstop2h 17mUnited Airlines
Mon 6/178:11 pmIAH - STL
Nonstop2h 04mUnited Airlines
Deal found 5/29$327

Cheap Frontier flights from Illinois to Houston

Explore cheap flight options specifically provided by Frontier for the route between Illinois and Houston. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Some of the best deals we've found on Frontier flights traveling from Illinois to Houston. Deals are refreshing constantly so come back soon for more options.
Tue 7/167:45 amMDW - IAH
Nonstop2h 35mFrontier
Tue 7/2312:58 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$70
Wed 6/56:15 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/129:21 pmIAH - ORD
Nonstop2h 38mFrontier
Deal found 5/28$71
Sat 6/86:00 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/129:21 pmIAH - ORD
Nonstop2h 38mFrontier
Deal found 5/29$74
Sat 6/84:58 pmMDW - IAH
Nonstop2h 41mFrontier
Tue 6/111:08 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$75
Tue 7/97:45 amMDW - IAH
Nonstop2h 35mFrontier
Tue 7/161:01 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/28$78
Tue 7/27:45 amMDW - IAH
Nonstop2h 41mFrontier
Thu 7/411:12 amIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$79
Wed 6/56:15 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/59:19 pmIAH - ORD
Nonstop2h 40mFrontier
Deal found 5/29$80
Tue 6/117:45 amMDW - IAH
Nonstop2h 41mFrontier
Thu 6/1311:12 amIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$81
Tue 6/257:45 amMDW - IAH
Nonstop2h 41mFrontier
Tue 7/21:08 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/28$82

Cheap Illinois to Houston flights in May & June 2024

Find cheap flight options from Illinois to Houston specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
The lowest fares we've come across on flights traveling from Illinois to Houston in May and June 2024. Check back soon for alternative fares.
Wed 6/127:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Wed 6/2610:50 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/30$67
Wed 6/122:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Wed 6/269:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/29$68
Sat 6/82:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Tue 6/1110:50 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/28$70
Wed 6/56:15 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/129:21 pmIAH - ORD
Nonstop2h 38mFrontier
Deal found 5/28$71
Wed 6/57:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Wed 6/129:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/29$73
Sat 6/86:00 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/129:21 pmIAH - ORD
Nonstop2h 38mFrontier
Deal found 5/29$74
Sat 6/84:58 pmMDW - IAH
Nonstop2h 41mFrontier
Tue 6/111:08 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$75
Wed 6/266:15 amORD - IAH
Nonstop2h 44mMultiple Airlines
Thu 7/44:48 pmIAH - ORD
Nonstop2h 38mMultiple Airlines
Deal found 5/29$76
Wed 6/56:15 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/59:19 pmIAH - ORD
Nonstop2h 40mFrontier
Deal found 5/29$80

Illinois to Houston 2024 flight deals

Discover exclusive flight deals for travel between Illinois and Houston in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
The lowest fares we've come across on flights traveling from Illinois to Houston in May and June 2024. Check back soon for alternative fares.
Sat 9/710:40 amORD - IAH
Nonstop2h 47mSpirit Airlines
Tue 9/109:18 amIAH - ORD
Nonstop2h 35mSpirit Airlines
Deal found 5/29$67
Wed 6/122:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Wed 6/269:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/29$68
Sat 9/148:16 pmORD - IAH
Nonstop2h 50mSpirit Airlines
Tue 9/179:22 pmIAH - ORD
Nonstop2h 36mSpirit Airlines
Deal found 5/29$69
Tue 7/167:45 amMDW - IAH
Nonstop2h 35mFrontier
Tue 7/2312:58 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$70
Wed 7/105:10 amORD - IAH
Nonstop2h 45mSpirit Airlines
Tue 7/1610:15 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/28$70
Tue 9/176:00 amORD - IAH
Nonstop2h 47mSpirit Airlines
Wed 9/259:22 pmIAH - ORD
Nonstop2h 36mSpirit Airlines
Deal found 5/28$71
Wed 6/57:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Wed 6/129:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/29$73
Sat 9/710:40 amORD - IAH
Nonstop2h 47mSpirit Airlines
Tue 9/105:10 amIAH - ORD
1 stop11h 30mSpirit Airlines
Deal found 5/29$74
Sat 6/84:58 pmMDW - IAH
Nonstop2h 41mFrontier
Tue 6/111:08 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$75

Non-stop flights to Houston from Illinois

Discover non-stop flight options from Illinois to Houston. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
To help reduce your travel time, choose from one of these non-stop flights from Illinois to Houston. Those looking to potentially save on 1 or 2-stop flights from Illinois to Houston should utilize the search form at the the top of the page.
Sat 9/710:40 amORD - IAH
Nonstop2h 47mSpirit Airlines
Tue 9/109:18 amIAH - ORD
Nonstop2h 35mSpirit Airlines
Deal found 5/29$67
Wed 6/122:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Wed 6/269:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/29$68
Sat 9/148:16 pmORD - IAH
Nonstop2h 50mSpirit Airlines
Tue 9/179:22 pmIAH - ORD
Nonstop2h 36mSpirit Airlines
Deal found 5/29$69
Tue 7/167:45 amMDW - IAH
Nonstop2h 35mFrontier
Tue 7/2312:58 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$70
Wed 7/105:10 amORD - IAH
Nonstop2h 45mSpirit Airlines
Tue 7/1610:15 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/28$70
Tue 9/176:00 amORD - IAH
Nonstop2h 47mSpirit Airlines
Wed 9/259:22 pmIAH - ORD
Nonstop2h 36mSpirit Airlines
Deal found 5/28$71
Wed 6/266:15 amORD - IAH
Nonstop2h 44mMultiple Airlines
Thu 7/44:48 pmIAH - ORD
Nonstop2h 38mMultiple Airlines
Deal found 5/29$76
Tue 7/97:45 amMDW - IAH
Nonstop2h 35mFrontier
Tue 7/161:01 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/28$78
Tue 7/27:45 amMDW - IAH
Nonstop2h 41mFrontier
Thu 7/411:12 amIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$79

Illinois to Houston flights leaving soon

Find last-minute flight options from Illinois to Houston for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Users seeking a last-minute flight from Illinois to Houston should consider booking one of these fares. Tip: verify your flight details before completing your reservation.
Sat 6/82:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Tue 6/1110:50 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/28$70
Wed 6/56:15 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/129:21 pmIAH - ORD
Nonstop2h 38mFrontier
Deal found 5/28$71
Wed 6/57:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Wed 6/129:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/29$73
Sat 6/86:00 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/129:21 pmIAH - ORD
Nonstop2h 38mFrontier
Deal found 5/29$74
Sat 6/84:58 pmMDW - IAH
Nonstop2h 41mFrontier
Tue 6/111:08 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$75
Wed 6/56:15 amORD - IAH
Nonstop2h 44mFrontier
Wed 6/59:19 pmIAH - ORD
Nonstop2h 40mFrontier
Deal found 5/29$80
Sat 6/86:00 amORD - IAH
Nonstop2h 44mMultiple Airlines
Tue 6/115:15 amIAH - ORD
1 stop11h 13mMultiple Airlines
Deal found 5/29$84
Wed 6/56:15 amORD - IAH
Nonstop2h 44mFrontier
Mon 6/109:21 pmIAH - ORD
Nonstop2h 38mFrontier
Deal found 5/29$88
Thu 6/67:40 amMDW - IAH
Nonstop2h 41mFrontier
Sat 6/88:30 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$89

One-way flights to Houston from Illinois

Search for one-way flight options from Illinois to Houston. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Users in need of a one-way flight from Illinois to Houston can choose from these deals. Users in need of a round-trip flight from Illinois to Houston instead should update the search form at the top of page.
Tue 7/305:10 amORD - IAH
Nonstop2h 45mSpirit Airlines
Deal found 5/29$34
Tue 7/97:45 amMDW - IAH
Nonstop2h 35mFrontier
Deal found 5/28$35
Tue 7/22:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$35
Tue 6/257:45 amMDW - IAH
Nonstop2h 41mFrontier
Deal found 5/29$36
Tue 6/252:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$36
Tue 9/177:48 amMDW - IAH
Nonstop2h 44mFrontier
Deal found 5/28$37
Mon 9/236:15 amORD - IAH
Nonstop2h 46mFrontier
Deal found 5/28$37
Wed 6/57:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Deal found 5/29$38
Sat 6/84:58 pmMDW - IAH
Nonstop2h 41mFrontier
Deal found 5/29$39

Find flights from Illinois to Houston within your budget

Customize your flight search to find flights from Illinois to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$67 - $79

Route

Depart

Return

Price

Chicago O'Hare IntlHouston George Bush Intcntl

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 9/7

Nonstop2h 47m

Houston George Bush Intcntl

Tue 9/10

Nonstop2h 35m

$67

Chicago O'Hare IntlHouston George Bush Intcntl

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 6/12

Nonstop2h 48m

Houston George Bush Intcntl

Wed 6/26

Nonstop2h 50m

$68

Chicago O'Hare IntlHouston George Bush Intcntl

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 9/14

Nonstop2h 50m

Houston George Bush Intcntl

Tue 9/17

Nonstop2h 36m

$69

Chicago MidwayHouston George Bush Intcntl

MDW - IAH

MDWIAH

Chicago Midway

Tue 7/16

Nonstop2h 35m

Houston George Bush Intcntl

Tue 7/23

Nonstop2h 28m

$70

Chicago O'Hare IntlHouston George Bush Intcntl

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 7/10

Nonstop2h 45m

Houston George Bush Intcntl

Tue 7/16

Nonstop2h 50m

$70

Chicago O'Hare IntlHouston George Bush Intcntl

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 9/4

Nonstop2h 46m

Houston George Bush Intcntl

Tue 9/10

Nonstop2h 36m

$73

Chicago O'Hare IntlHouston George Bush Intcntl

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 9/4

Nonstop2h 46m

Houston George Bush Intcntl

Mon 9/9

Nonstop2h 35m

$76

Chicago MidwayHouston George Bush Intcntl

MDW - IAH

MDWIAH

Chicago Midway

Tue 7/9

Nonstop2h 35m

Houston George Bush Intcntl

Tue 7/16

Nonstop2h 28m

$78

Chicago MidwayHouston George Bush Intcntl

MDW - IAH

MDWIAH

Chicago Midway

Tue 7/2

Nonstop2h 41m

Houston George Bush Intcntl

Thu 7/4

Nonstop2h 28m

$79

Flights are sorted by cheapest first

Deals found on 5/29

No data available for this route at this time. Please check back soon.

Best time to book a flight from Illinois to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated May 30, 2024.
Peruse reviews from past customers who have flown with United Airlines, Frontier and Spirit Airlines from Illinois to Houston to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,956 reviews

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

Southwest
8.2
Very good
5,956 reviews
Southwest
8.2
Very good
5,956 reviews

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

8.0
Very good
10,457 reviews
Southwest
8.2
Very good
5,956 reviews

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

7.5
Good
2,866 reviews
Southwest
8.2
Very good
5,956 reviews

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

7.4
Good
10,777 reviews
Southwest
8.2
Very good
5,956 reviews

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

7.3
Good
14,284 reviews
Southwest
8.2
Very good
5,956 reviews

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Illinois to Houston for under $100 on Cheapflights?

    Yes, there are multiple flights from Illinois to Houston for under $100. The cheapest flight booked recently is on Spirit Airlines for just $67, but on average you can expect to pay $76.

  • Are there nonstop flights from Illinois to Houston for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from Illinois to Houston under $100. A good price for a nonstop flight from Illinois to Houston is less than $78.

  • Are there last-minute flights available from Illinois to Houston for under $100?

    There are currently 20+ open flights from Illinois to Houston within the next 7 days for less than $100.

  • What days are nonstop flights available from Illinois to Houston?

    You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

  • How many flights depart from Illinois to Houston on average per day?

    Travelers can expect 38 flights from Illinois to Houston on average per day.
    Early Morning (Midnight to 6am) - 3% of flight departures
    Morning (6am - Noon) - 29% of flight departures
    Afternoon (Noon - 6pm) - 16% of flight departures
    Evening (6pm - Midnight) - 53% of flight departures

  • How long is the flight from Illinois to Houston?

    A quick flight from Illinois to Houston can take about 2h 35m. Spirit Airlines provides one of the quickest options available for as low as $67. Illinois and Houston are separated by a distance of 930 mi. All flights are typically nonstop.

  • What are the most popular routes from Illinois to Houston?

  • What are the most reliable airlines from Illinois to Houston?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Houston on time: Avianca (87%), Alaska Airlines (83%), Japan Airlines (78%).

  • What are the cheapest flights from Illinois to Houston?

    Looking at all options, your cheapest flight can be booked for $44. While the most popular route (Chicago O'Hare Intl - Houston Hobby) can be booked for $67 on average our data indicates $1,037 when flying from Illinois to Houston.

  • What does ORD to IAH mean?

    Chicago O'Hare Intl Airport is ORD and Houston George Bush Intcntl Airport is IAH. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Houston Hobby Airport (HOU), College Station Easterwood Field Airport (CLL), Beaumont Jefferson County Airport (BPT) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Illinois to Houston that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Houston flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to Houston with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Houston flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Illinois to Houston that include hotel bookings?

    Yes. In addition to deals on Illinois to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Houston.

  • Can I find deals for business class flights from Illinois to Houston?

    Yes. Cheapflights offers flight deals from Illinois to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Illinois to Houston that allow pets onboard?

    Many airlines flying from Illinois to Houston offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to Houston?

    Yes, you can often find last-minute deals on Illinois to Houston flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to Houston flight deals updated?

    The Illinois to Houston flight deals you see on this page were last updated on 5/29.

  • What are the most popular airlines that fly from Illinois to Houston?

  • What is the cheapest month to book a flight from Illinois to Houston?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Houston (average of $243). Flying from Illinois to Houston in March is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Illinois to Houston
See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Illinois to Houston

Discover the top 5 airlines that operate flights from Illinois to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$144FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$57Average$169FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$139Average$405FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$157Average$443FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$196Average$338FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights from Illinois to Houston by cabin class

Find flights from Illinois to Houston, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Illinois to Houston

Find hourly flight availability from Illinois to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 30, 2024.
17%of flight departuresEarly morningMidnight to 6 am
34%of flight departuresMorning6 am to noon
33%of flight departuresAfternoonNoon to 6 pm
16%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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How does Cheapflights help users find flights from Illinois to Houston?

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Why should you use Cheapflights to find cheap flight tickets from Illinois to Houston?

Millions of users choose and trust Cheapflights to book the best flight deals from Illinois to Houston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Illinois to Houston with no change fees?

Certainly. Search results for flights to Houston from Illinois shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Illinois to Houston become cheaper?

Yes! Start tracking prices for Illinois to Houston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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