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Cheap flights from Great Falls (GTF) to Illinois from $144

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 7/15. 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.
GTF — ORD
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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What is the cheapest month to fly from Great Falls to Illinois?

January can be a great time to fly to Illinois from Great Falls with a flight ticket averaging about $366. Cheapflights users have found deals in the month of January for as cheap as $217. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Great Falls to Illinois (GTF - IL)?

When flying from Great Falls to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap United Airlines flights from Great Falls to Illinois

Explore cheap flight options specifically provided by United Airlines for the route between Great Falls and Illinois. 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 2,637,452 searches. Data last updated May 16, 2024.
Take a peek at the cheapest United Airlines flights we've detected traveling from Great Falls to Illinois. Make sure to check back often as deals are often changing.
Thu 8/222:25 pmGTF - ORD
1 stop7h 32mUnited Airlines
Mon 8/267:10 amORD - GTF
1 stop7h 16mUnited Airlines
Deal found 5/15$298
Tue 6/112:17 pmGTF - ORD
1 stop5h 47mUnited Airlines
Mon 6/172:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/16$376
Fri 8/22:15 pmGTF - ORD
1 stop7h 40mUnited Airlines
Sun 8/117:10 amORD - GTF
1 stop7h 08mUnited Airlines
Deal found 5/16$408
Sat 5/2512:30 pmGTF - ORD
Nonstop3h 14mUnited Airlines
Sun 5/262:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/14$419
Sat 5/252:25 pmGTF - ORD
1 stop8h 34mUnited Airlines
Sun 5/262:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/14$428
Mon 7/17:00 amGTF - ORD
1 stop13h 56mUnited Airlines
Mon 7/155:16 amORD - GTF
1 stop17h 02mUnited Airlines
Deal found 5/15$513
Thu 6/202:17 pmGTF - ORD
1 stop7h 38mUnited Airlines
Sun 6/235:04 amORD - GTF
1 stop9h 14mUnited Airlines
Deal found 5/16$523
Mon 10/287:00 amGTF - ORD
2 stops15h 59mUnited Airlines
Wed 10/308:45 amORD - GTF
2 stops13h 15mUnited Airlines
Deal found 5/16$549
Thu 6/202:17 pmGTF - ORD
2 stops16h 19mUnited Airlines
Sun 6/235:04 amORD - GTF
1 stop16h 59mUnited Airlines
Deal found 5/16$597

Cheap Alaska Airlines flights from Great Falls to Illinois

Explore cheap flight options specifically provided by Alaska Airlines for the route between Great Falls and Illinois. 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 2,637,452 searches. Data last updated May 16, 2024.
Take a gander at the lowest prices we've found on Alaska Airlines flights from Great Falls to Illinois. Deals are refreshing constantly so come back soon for more options.
Mon 10/286:00 amGTF - ORD
1 stop9h 58mAlaska Airlines
Wed 10/305:54 pmORD - GTF
1 stop7h 05mAlaska Airlines
Deal found 5/15$313
Mon 10/286:00 amGTF - ORD
2 stops22h 28mAlaska Airlines
Wed 10/305:54 pmORD - GTF
1 stop7h 05mAlaska Airlines
Deal found 5/16$326
Tue 6/114:06 pmGTF - ORD
1 stop25h 23mAlaska Airlines
Fri 6/147:22 pmORD - GTF
1 stop29h 37mAlaska Airlines
Deal found 5/16$364
Tue 6/114:06 pmGTF - ORD
2 stops11h 34mAlaska Airlines
Fri 6/149:22 pmORD - GTF
1 stop27h 37mAlaska Airlines
Deal found 5/16$390
Thu 8/224:31 pmGTF - ORD
2 stops11h 59mAlaska Airlines
Mon 8/269:10 pmORD - GTF
1 stop19h 41mAlaska Airlines
Deal found 5/15$414
Sat 9/287:00 amGTF - ORD
1 stop28h 17mAlaska Airlines
Mon 9/306:00 amORD - GTF
1 stop10h 51mAlaska Airlines
Deal found 5/16$429
Fri 6/144:11 pmGTF - ORD
1 stop11h 29mAlaska Airlines
Sun 6/166:00 amORD - GTF
1 stop18h 59mAlaska Airlines
Deal found 5/15$444
Thu 8/224:31 pmGTF - ORD
2 stops11h 59mAlaska Airlines
Mon 8/267:00 amORD - GTF
2 stops17h 46mAlaska Airlines
Deal found 5/15$454
Tue 6/114:06 pmGTF - ORD
2 stops11h 34mAlaska Airlines
Mon 6/175:50 pmORD - GTF
1 stop7h 09mAlaska Airlines
Deal found 5/16$502

Cheap Great Falls to Illinois flights in May & June 2024

Find cheap flight options from Great Falls to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Scroll through some of the best deals on flights from Great Falls to Illinois in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sat 5/256:00 amGTF - ORD
1 stop7h 42mDelta
Sun 5/265:15 pmORD - GTF
1 stop6h 21mDelta
Deal found 5/15$348
Sat 5/255:45 amGTF - ORD
2 stops10h 04mDelta
Sun 5/265:15 pmORD - GTF
1 stop6h 21mDelta
Deal found 5/15$353
Tue 6/114:06 pmGTF - ORD
1 stop25h 23mAlaska Airlines
Fri 6/147:22 pmORD - GTF
1 stop29h 37mAlaska Airlines
Deal found 5/16$364
Tue 6/112:17 pmGTF - ORD
1 stop5h 47mUnited Airlines
Mon 6/172:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/16$376
Tue 6/114:06 pmGTF - ORD
2 stops11h 34mAlaska Airlines
Fri 6/149:22 pmORD - GTF
1 stop27h 37mAlaska Airlines
Deal found 5/16$390
Sat 5/2512:30 pmGTF - ORD
Nonstop3h 14mUnited Airlines
Sun 5/262:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/14$419
Sat 5/252:25 pmGTF - ORD
1 stop8h 34mUnited Airlines
Sun 5/262:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/14$428
Fri 6/144:11 pmGTF - ORD
1 stop11h 29mAlaska Airlines
Sun 6/166:00 amORD - GTF
1 stop18h 59mAlaska Airlines
Deal found 5/15$444
Tue 6/116:15 pmGTF - ORD
2 stops12h 17mDelta
Mon 6/171:25 pmORD - GTF
2 stops10h 23mDelta
Deal found 5/16$448

Great Falls to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Great Falls and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Scroll through some of the best deals on flights from Great Falls to Illinois in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 8/222:25 pmGTF - ORD
1 stop7h 32mUnited Airlines
Mon 8/267:10 amORD - GTF
1 stop7h 16mUnited Airlines
Deal found 5/15$298
Thu 8/226:00 amGTF - MDW
1 stop6h 09mDelta
Mon 8/265:00 pmMDW - GTF
1 stop6h 49mDelta
Deal found 5/15$303
Mon 10/286:00 amGTF - ORD
1 stop9h 58mAlaska Airlines
Wed 10/305:54 pmORD - GTF
1 stop7h 05mAlaska Airlines
Deal found 5/15$313
Mon 10/286:00 amGTF - ORD
2 stops22h 28mAlaska Airlines
Wed 10/305:54 pmORD - GTF
1 stop7h 05mAlaska Airlines
Deal found 5/16$326
Sat 5/256:00 amGTF - ORD
1 stop7h 42mDelta
Sun 5/265:15 pmORD - GTF
1 stop6h 21mDelta
Deal found 5/15$348
Sat 5/255:45 amGTF - ORD
2 stops10h 04mDelta
Sun 5/265:15 pmORD - GTF
1 stop6h 21mDelta
Deal found 5/15$353
Sat 9/285:55 amGTF - ORD
1 stop5h 20mDelta
Mon 9/301:16 pmORD - GTF
2 stops10h 21mDelta
Deal found 5/16$363
Tue 6/114:06 pmGTF - ORD
1 stop25h 23mAlaska Airlines
Fri 6/147:22 pmORD - GTF
1 stop29h 37mAlaska Airlines
Deal found 5/16$364
Tue 6/112:17 pmGTF - ORD
1 stop5h 47mUnited Airlines
Mon 6/172:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/16$376

Great Falls to Illinois flights leaving soon

Find last-minute flight options from Great Falls to Illinois 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 2,637,452 searches. Data last updated May 16, 2024.
Book one of these great deals on flights from Great Falls to Illinois. Users should be sure to double check the price, date, and time of their last-minute flight.
Sat 5/256:00 amGTF - ORD
1 stop7h 42mDelta
Sun 5/265:15 pmORD - GTF
1 stop6h 21mDelta
Deal found 5/15$348
Sat 5/255:45 amGTF - ORD
2 stops10h 04mDelta
Sun 5/265:15 pmORD - GTF
1 stop6h 21mDelta
Deal found 5/15$353
Sat 5/2512:30 pmGTF - ORD
Nonstop3h 14mUnited Airlines
Sun 5/262:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/14$419
Sat 5/252:25 pmGTF - ORD
1 stop8h 34mUnited Airlines
Sun 5/262:35 pmORD - GTF
1 stop7h 28mUnited Airlines
Deal found 5/14$428
Sat 5/255:45 amGTF - ORD
2 stops10h 04mDelta
Sun 5/265:15 pmORD - GTF
1 stop6h 21mDelta
Deal found 5/14$463
Sat 5/255:45 amGTF - ORD
2 stops10h 04mDelta
Sun 5/269:52 amORD - GTF
2 stops13h 44mDelta
Deal found 5/15$676
Sat 5/255:45 amGTF - MDW
2 stops10h 10mDelta
Sun 5/265:00 pmMDW - GTF
2 stops25h 38mDelta
Deal found 5/15$726
Sat 5/255:45 amGTF - ORD
2 stops10h 04mDelta
Sun 5/2611:59 amORD - GTF
2 stops11h 37mDelta
Deal found 5/14$728
Sat 5/255:45 amGTF - MDW
2 stops10h 10mDelta
Sun 5/2611:59 amMDW - GTF
2 stops30h 39mDelta
Deal found 5/14$752

One-way flights to Illinois from Great Falls

Search for one-way flight options from Great Falls to Illinois. 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 2,637,452 searches. Data last updated May 16, 2024.
Some of the best available deals we've found on one-way flights from Great Falls to Illinois. Those needing a return flight from Great Falls to Illinois can use the search form above.
Mon 7/155:31 pmGTF - ORD
1 stop12h 11mMultiple Airlines
Deal found 5/15$144
Mon 7/155:31 pmGTF - ORD
2 stops20h 18mMultiple Airlines
Deal found 5/15$163
Sat 5/256:00 amGTF - ORD
1 stop4h 25mDelta
Deal found 5/16$174
Sat 5/2512:00 pmGTF - ORD
2 stops7h 55mDelta
Deal found 5/16$179
Tue 7/164:11 pmGTF - ORD
2 stops12h 04mAlaska Airlines
Deal found 5/16$183
Mon 7/155:31 pmGTF - ORD
3 stops27h 27mMultiple Airlines
Deal found 5/15$186
Thu 6/137:02 amGTF - ORD
1 stop12h 18mAlaska Airlines
Deal found 5/15$198
Thu 6/137:02 amGTF - ORD
2 stops21h 13mAlaska Airlines
Deal found 5/15$203
Tue 7/164:11 pmGTF - ORD
1 stop11h 29mAlaska Airlines
Deal found 5/15$223

Find flights from Great Falls to Illinois within your budget

Customize your flight search to find flights from Great Falls to Illinois 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$298 - $408

Route

Depart

Return

Price

Great FallsChicago O'Hare Intl

GTF - ORD

GTFORD

Great Falls

Thu 8/22

1 stop7h 32m

Chicago O'Hare Intl

Mon 8/26

1 stop7h 16m

$298

Great FallsChicago Midway

GTF - MDW

GTFMDW

Great Falls

Thu 8/22

1 stop6h 09m

Chicago Midway

Mon 8/26

1 stop6h 49m

$303

Great FallsChicago O'Hare Intl

GTF - ORD

GTFORD

Great Falls

Mon 10/28

1 stop9h 58m

Chicago O'Hare Intl

Wed 10/30

1 stop7h 05m

$313

Great FallsChicago O'Hare Intl

GTF - ORD

GTFORD

Great Falls

Mon 10/28

2 stops22h 28m

Chicago O'Hare Intl

Wed 10/30

1 stop7h 05m

$326

Great FallsChicago O'Hare Intl

GTF - ORD

GTFORD

Great Falls

Sat 9/28

1 stop5h 20m

Chicago O'Hare Intl

Mon 9/30

2 stops10h 21m

$363

Great FallsChicago O'Hare Intl

GTF - ORD

GTFORD

Great Falls

Tue 6/11

1 stop25h 23m

Chicago O'Hare Intl

Fri 6/14

1 stop29h 37m

$364

Great FallsChicago O'Hare Intl

GTF - ORD

GTFORD

Great Falls

Tue 6/11

1 stop5h 47m

Chicago O'Hare Intl

Mon 6/17

1 stop7h 28m

$376

Great FallsChicago O'Hare Intl

GTF - ORD

GTFORD

Great Falls

Fri 8/2

1 stop11h 57m

Chicago O'Hare Intl

Sun 8/11

1 stop18h 08m

$406

Great FallsChicago O'Hare Intl

GTF - ORD

GTFORD

Great Falls

Fri 8/2

1 stop7h 40m

Chicago O'Hare Intl

Sun 8/11

1 stop7h 08m

$408

Flights are sorted by cheapest first

Deals found on 5/15

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated May 16, 2024.
Read through reviews of airlines operating flights from Great Falls to Illinois, such as United Airlines, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,157 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.0
Very good
10,673 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
10,924 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Great Falls to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Great Falls to Illinois?

    Great Falls (GTF) is the airport you will fly out of if you book a flight from Great Falls to Illinois. It is only a 3.5 mi journey to Great Falls (GTF) from Great Falls’s city center.

  • Can I find flights from Great Falls to Illinois for under $300 on Cheapflights?

    Yes, there are multiple flights from Great Falls to Illinois for under $300. The cheapest flight booked recently is on United Airlines for just $298, but on average you can expect to pay $404.

  • Are there last-minute flights available from Great Falls to Illinois for under $400?

    There are currently 13+ open flights from Great Falls to Illinois within the next 7 days for less than $400.

  • What are the cheapest flights from Great Falls to Illinois?

    On average you can expect to pay $507 for a flight from Great Falls to Illinois. The cheapest flight overall is $272 while the most popular route, (Great Falls - Chicago O'Hare Intl) is currently priced at $238.

  • What does GTF to ORD mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Great Falls Airport to Chicago O'Hare Intl Airport flight would often be abbreviated as a GTF to ORD flight. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI).

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

    The amount of baggage you can bring on your Great Falls to Illinois 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 Great Falls to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Great Falls to Illinois 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 Great Falls to Illinois that include hotel bookings?

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

  • How can I find direct flights from Great Falls to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Great Falls to Illinois 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 Great Falls to Illinois that allow pets onboard?

    Many airlines flying from Great Falls to Illinois 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 Great Falls to Illinois?

    Yes, you can often find last-minute deals on Great Falls to Illinois 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 Great Falls to Illinois flight deals updated?

    The Great Falls to Illinois flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Great Falls to Illinois
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Top 2 airlines flying from Great Falls to Illinois

Discover the top 2 airlines that operate flights from Great Falls to Illinois. 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$152Average$307FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$217Average$374FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Great Falls to Illinois by cabin class

Find flights from Great Falls to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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How does Cheapflights help users find flights from Great Falls to Illinois?

When you search for this flight from Great Falls to Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Great Falls to Illinois flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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