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Cheap flights from Porto (OPO) to O'Hare Intl (ORD) from $401

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 5/31. 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.
OPO — ORD
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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Cheap flight deals from Porto to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2024.

Popular in

April

Cheapest in

February

Average price

$879

Round-trip from

$223
High demand for flights, 51% potential price rise
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Best time to find cheap flights, 39% potential price drop
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Average for round-trip flights in May 2024
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From Porto to Chicago O'Hare Intl
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What is the cheapest day to fly round-trip from Porto to Chicago O'Hare Intl Airport?

Friday is generally a great day to depart. Flying on this day could help you save up to 20%.

What is the cheapest month to fly from Porto to Chicago O'Hare Intl Airport?

Flights from Porto to Chicago O'Hare Intl Airport lean towards being more expensive in July. Prices are generally better when you fly from Porto to Chicago O'Hare Intl Airport in September, with the cheapest ticket starting at $645.

When is the cheapest time to fly from Porto to Chicago O'Hare Intl Airport (OPO - ORD)?

When flying from Porto to Chicago O'Hare Intl Airport, 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 Porto to O'Hare Intl

Explore cheap flight options specifically provided by United Airlines for the route between Porto and O'Hare Intl. 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 Porto to Chicago. Be sure to come back soon if the deals available don't appeal to you at this time.
Thu 5/2312:35 pmOPO - ORD
1 stop13h 35mUnited Airlines
Wed 6/59:30 amORD - OPO
2 stops15h 25mUnited Airlines
Deal found 5/15$733
Thu 6/66:00 amOPO - ORD
1 stop15h 00mUnited Airlines
Thu 6/201:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Deal found 5/15$766
Thu 6/69:00 amOPO - ORD
2 stops15h 52mUnited Airlines
Thu 6/201:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Deal found 5/15$774

Cheap SWISS flights from Porto to O'Hare Intl

Explore cheap flight options specifically provided by SWISS for the route between Porto and O'Hare Intl. 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 SWISS flights from Porto to Chicago. Make sure to examine the flight information before completing your reservation.
Thu 6/67:20 pmOPO - ORD
2 stops22h 40mSWISS
Thu 6/207:15 pmORD - OPO
2 stops36h 30mSWISS
Deal found 5/15$870
Thu 5/237:20 pmOPO - ORD
2 stops22h 40mSWISS
Wed 6/52:20 pmORD - OPO
2 stops17h 25mSWISS
Deal found 5/15$884

Cheap Porto to O'Hare Intl flights in May & June 2024

Find cheap flight options from Porto to O'Hare Intl 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.
Check out some of the best flight deals from Porto to Chicago in 2024. Check back in a little while for more flight options.
Thu 5/2312:35 pmOPO - ORD
1 stop13h 35mUnited Airlines
Wed 6/59:30 amORD - OPO
2 stops15h 25mUnited Airlines
Deal found 5/15$733
Thu 6/66:00 amOPO - ORD
1 stop15h 00mUnited Airlines
Thu 6/201:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Deal found 5/15$766
Thu 6/69:00 amOPO - ORD
2 stops15h 52mUnited Airlines
Thu 6/201:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Deal found 5/15$774
Thu 6/67:20 pmOPO - ORD
2 stops22h 40mSWISS
Thu 6/207:15 pmORD - OPO
2 stops36h 30mSWISS
Deal found 5/15$870
Thu 5/237:20 pmOPO - ORD
2 stops22h 40mSWISS
Wed 6/52:20 pmORD - OPO
2 stops17h 25mSWISS
Deal found 5/15$884

Porto to O'Hare Intl 2024 flight deals

Discover exclusive flight deals for travel between Porto and O'Hare Intl 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.
Check out some of the best flight deals from Porto to Chicago in 2024. Check back in a little while for more flight options.
Thu 5/2312:35 pmOPO - ORD
1 stop13h 35mUnited Airlines
Wed 6/59:30 amORD - OPO
2 stops15h 25mUnited Airlines
Deal found 5/15$733
Thu 6/66:00 amOPO - ORD
1 stop15h 00mUnited Airlines
Thu 6/201:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Deal found 5/15$766
Thu 6/69:00 amOPO - ORD
2 stops15h 52mUnited Airlines
Thu 6/201:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Deal found 5/15$774
Thu 6/67:20 pmOPO - ORD
2 stops22h 40mSWISS
Thu 6/207:15 pmORD - OPO
2 stops36h 30mSWISS
Deal found 5/15$870
Thu 5/237:20 pmOPO - ORD
2 stops22h 40mSWISS
Wed 6/52:20 pmORD - OPO
2 stops17h 25mSWISS
Deal found 5/15$884
Thu 7/114:50 pmOPO - ORD
1 stop22h 50mTurkish Airlines
Sat 8/108:30 pmORD - OPO
1 stop32h 40mTurkish Airlines
Deal found 5/16$1,046
Thu 7/115:00 amOPO - ORD
1 stop15h 15mKLM
Sat 8/101:35 pmORD - OPO
2 stops15h 05mKLM
Deal found 5/16$1,067
Thu 7/119:15 amOPO - ORD
2 stops18h 24mDelta
Sat 8/105:30 pmORD - OPO
2 stops16h 00mDelta
Deal found 5/16$1,097
Thu 7/114:25 pmOPO - ORD
3 stops47h 26mMultiple Airlines
Sat 8/104:05 pmORD - OPO
2 stops37h 15mMultiple Airlines
Deal found 5/16$16,778

Porto to O'Hare Intl flights leaving soon

Find last-minute flight options from Porto to O'Hare Intl 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.
Consider one of these great deals we found on last-minute flights from Porto to Chicago. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Thu 5/2312:35 pmOPO - ORD
1 stop13h 35mUnited Airlines
Wed 6/59:30 amORD - OPO
2 stops15h 25mUnited Airlines
Deal found 5/15$733
Thu 5/237:20 pmOPO - ORD
2 stops22h 40mSWISS
Wed 6/52:20 pmORD - OPO
2 stops17h 25mSWISS
Deal found 5/15$884

One-way flights to O'Hare Intl from Porto

Search for one-way flight options from Porto to O'Hare Intl. 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.
Users traveling one-way from Porto to Chicago can select one of these great deals. Those seeking round-trip flights from Porto to Chicago should utilize the search form at the the top of the page.
Fri 5/317:40 pmOPO - ORD
2 stops43h 15mMultiple Airlines
Deal found 5/15$401
Mon 11/412:40 pmOPO - ORD
2 stops25h 53mMultiple Airlines
Deal found 5/15$433
Fri 5/318:45 amOPO - ORD
3 stops37h 50mMultiple Airlines
Deal found 5/15$445
Thu 10/247:00 amOPO - ORD
2 stops19h 43mMultiple Airlines
Deal found 5/15$493
Sat 9/216:10 amOPO - ORD
1 stop13h 49mMultiple Airlines
Deal found 5/15$500
Wed 11/66:30 amOPO - ORD
2 stops16h 50mMultiple Airlines
Deal found 5/15$524
Thu 10/241:30 pmOPO - ORD
1 stop13h 13mMultiple Airlines
Deal found 5/15$537
Mon 5/2710:30 pmOPO - ORD
3 stops32h 38mMultiple Airlines
Deal found 5/15$548
Mon 11/44:25 pmOPO - ORD
1 stop33h 00mTurkish Airlines
Deal found 5/15$557

Find flights from Porto to O'Hare Intl within your budget

Customize your flight search to find flights from Porto to O'Hare Intl 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

$766 - $16,778

Route

Depart

Return

Price

PortoChicago O'Hare Intl

OPO - ORD

OPOORD

Porto

Thu 6/6

1 stop15h 00m

Chicago O'Hare Intl

Thu 6/20

1 stop11h 43m

$766

PortoChicago O'Hare Intl

OPO - ORD

OPOORD

Porto

Thu 6/6

2 stops15h 52m

Chicago O'Hare Intl

Thu 6/20

1 stop11h 43m

$774

PortoChicago O'Hare Intl

OPO - ORD

OPOORD

Porto

Thu 6/6

2 stops22h 40m

Chicago O'Hare Intl

Thu 6/20

2 stops36h 30m

$870

PortoChicago O'Hare Intl

OPO - ORD

OPOORD

Porto

Thu 7/11

1 stop22h 50m

Chicago O'Hare Intl

Sat 8/10

1 stop32h 40m

$1,046

PortoChicago O'Hare Intl

OPO - ORD

OPOORD

Porto

Thu 7/11

1 stop15h 15m

Chicago O'Hare Intl

Sat 8/10

2 stops15h 05m

$1,067

PortoChicago O'Hare Intl

OPO - ORD

OPOORD

Porto

Thu 7/11

2 stops18h 24m

Chicago O'Hare Intl

Sat 8/10

2 stops16h 00m

$1,097

PortoChicago O'Hare Intl

OPO - ORD

OPOORD

Porto

Thu 7/11

3 stops47h 26m

Chicago O'Hare Intl

Sat 8/10

2 stops37h 15m

$16,778

Flights are sorted by cheapest first

Deals found on 5/15

When is the cheapest time to fly from Porto to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Porto to O'Hare Intl. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Porto to Chicago O'Hare Intl Airport flight should consider departing on Saturday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to O'Hare Intl by month

Plan your trip from Porto to O'Hare Intl by taking into account the cheapest months to travel. The average price of a one-way flight from Porto to O'Hare Intl is currently $493 while a round-trip flight costs $3,200. Price data was last updated on May 12, 2024.

Currently, February is the cheapest month in which you can book a flight from Porto to Chicago O'Hare Intl Airport (average of $244). Flying from Porto to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $342). 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.

January

$248

February

$244

March

$280

April

$258

May

$278

June

$342

July

$327

August

$274

September

$258

October

$248

November

$270

December

$248

Temperature and rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature and rainfall totals by month.

CHI

Temperature

23 - 73.4 °F

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated May 16, 2024.
Peruse reviews from past customers who have flown with United Airlines and SWISS from Porto to Chicago to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

KLM
7.9
Good
1,568 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

SWISS
7.8
Good
1,994 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Austrian Airlines
7.7
Good
1,053 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Turkish Airlines
7.4
Good
3,707 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Porto to O'Hare Intl. 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 Porto to Chicago O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from Porto, you will be flying from Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto. There are 0 flights from Porto to Chicago O'Hare Intl per day from 1 airline.

  • Can I find flights from Porto to Chicago O'Hare Intl Airport for under $800 on Cheapflights?

    Yes, there are multiple flights from Porto to Chicago O'Hare Intl Airport for under $800. The cheapest flight booked recently is on United Airlines for just $766, but on average you can expect to pay $3,199.

  • Are there last-minute flights available from Porto to Chicago O'Hare Intl Airport for under $800?

    There are currently 2+ open flights from Porto to Chicago O'Hare Intl Airport within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Porto to Chicago O'Hare Intl Airport round-trip?

    Flying on United Airlines is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $766. Additional round-trip tickets that might be worth considering are offered by SWISS and Turkish Airlines, with the lowest prices starting at $870 and $1,046, respectively. You may be able to fly from Porto to Chicago O'Hare Intl Airport for 16% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Porto to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with Turkish Airlines, which is currently one of the cheapest options available, starting at $557. TAP AIR PORTUGAL flights start at $568 while deals on Air Europa start at $583 one-way.

  • What does OPO to ORD mean?

    OPO stands for Porto Airport, while ORD stands for Chicago O'Hare Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Porto to O'Hare Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Porto to O'Hare Intl 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 Porto to O'Hare Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Porto to O'Hare Intl 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 Porto to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Porto to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to O'Hare Intl.

  • Can I find deals for business class flights from Porto to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Porto to O'Hare Intl 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 Porto to O'Hare Intl that allow pets onboard?

    Many airlines flying from Porto to O'Hare Intl 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 Porto to O'Hare Intl?

    Yes, you can often find last-minute deals on Porto to O'Hare Intl 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 Porto to Chicago O'Hare Intl Airport flight deals updated?

    The Porto to Chicago O'Hare Intl Airport flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Porto to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.

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Top airline flying from Porto to O'Hare Intl

Discover the top airline that operate flights from Porto to O'Hare Intl. 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
United AirlinesCheapest$866Average$879FlexibilityNo cancel feeOn-time69%
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Search flights from Porto to O'Hare Intl by cabin class

Find flights from Porto to O'Hare Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

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Cheapflights helps you search for flights from Porto to O'Hare Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Porto to O'Hare Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Porto to O'Hare Intl.

Can Cheapflights find flights from Porto to O'Hare Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Porto to O'Hare Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Porto to O'Hare Intl 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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