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$358+ Cheap flights from Portugal to Chicago (CHI)

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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — CHI
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Portugal to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Portugal (PT0) to Chicago (CHI). 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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$528
(Mytrip)

One-way from

$358
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$833

Good one-way deal

$616 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Chicago (CHI) flights.
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From Portugal to Chicago (CHI)
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One-way flight from Portugal to Chicago (CHI)
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Highest demand for flights based on searches. 9% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a one-way flight from Portugal to Chicago (CHI).
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Find flight deals from Portugal to Chicago

Cheapest flights from Portugal to Chicago
Explore the most affordable flight options available from Portugal to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Mytrip deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/288:45 pmLIS - ORD
2 stops27h 10mMultiple Airlines
Sun 3/94:55 pmORD - LIS
2 stops24h 15mMultiple Airlines
Deal found 1/30$528
This Mytrip deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/116:40 pmOPO - ORD
1 stop18h 04mMultiple Airlines
Tue 3/185:22 pmORD - OPO
1 stop13h 53mMultiple Airlines
Deal found 1/30$563
This Booking.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2810:50 amLIS - ORD
1 stop14h 25mAer Lingus
Sun 3/94:55 pmORD - LIS
1 stop12h 15mAer Lingus
Deal found 1/30$570
This Finnair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/106:30 amLIS - ORD
1 stop14h 00mFinnair
Mon 3/179:15 pmORD - LIS
1 stop19h 40mFinnair
Deal found 1/30$598
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/105:00 amLIS - ORD
1 stop15h 30mDelta
Mon 3/176:15 pmORD - LIS
2 stops18h 15mDelta
Deal found 1/30$600
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/105:00 amLIS - MDW
2 stops18h 02mDelta
Mon 3/176:42 pmMDW - LIS
2 stops17h 48mDelta
Deal found 1/30$606
This Cheapflightsfares deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/99:00 amLIS - ORD
1 stop16h 20mIberia
Wed 4/234:30 pmORD - LIS
1 stop13h 20mIberia
Deal found 1/30$607
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:35 amLIS - ORD
1 stop13h 40mAmerican Airlines
Fri 10/248:35 pmORD - LIS
1 stop20h 35mAmerican Airlines
Deal found 1/30$608
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/246:20 amOPO - ORD
1 stop14h 10mDelta
Tue 3/116:20 pmORD - OPO
1 stop11h 15mDelta
Deal found 1/30$614
This Gotogate deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/248:20 amOPO - ORD
1 stop12h 10mIberia
Tue 3/1110:45 pmORD - OPO
2 stops27h 55mIberia
Deal found 1/30$616
This KLM deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/197:30 pmLIS - ORD
1 stop24h 40mKLM
Mon 5/124:20 pmORD - LIS
1 stop24h 30mKLM
Deal found 1/30$622
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/278:15 amOPO - ORD
1 stop12h 00mAmerican Airlines
Mon 5/1211:40 amORD - OPO
2 stops13h 55mAmerican Airlines
Deal found 1/29$624

Find flights from Portugal to Chicago within your budget

Customize your flight search to find flights from Portugal to Chicago 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 2,558,603 searches. Data last updated January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 2/28

8:45 pm-5:55 pm

2 stops27h 10m

Chicago O'Hare Intl

Sun 3/9

4:55 pm-10:10 pm

2 stops24h 15m

$528

PortoChicago

OPO - ORD

OPOORD

Porto

Tue 3/11

6:40 pm-7:44 am

1 stop18h 04m

Chicago O'Hare Intl

Tue 3/18

5:22 pm-12:15 pm

1 stop13h 53m

$563

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 2/28

10:50 am-7:15 pm

1 stop14h 25m

Chicago O'Hare Intl

Sun 3/9

4:55 pm-10:10 am

1 stop12h 15m

$570

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Mon 3/10

6:30 am-3:30 pm

1 stop14h 00m

Chicago O'Hare Intl

Mon 3/17

9:15 pm-9:55 pm

1 stop19h 40m

$598

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Mon 3/10

5:00 am-3:30 pm

1 stop15h 30m

Chicago O'Hare Intl

Mon 3/17

6:15 pm-5:30 pm

2 stops18h 15m

$600

LisbonChicago

LIS - MDW

LISMDW

Lisbon Humberto Delgado

Mon 3/10

5:00 am-6:02 pm

2 stops18h 02m

Chicago Midway

Mon 3/17

6:42 pm-5:30 pm

2 stops17h 48m

$606

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 4/9

9:00 am-7:20 pm

1 stop16h 20m

Chicago O'Hare Intl

Wed 4/23

4:30 pm-11:50 am

1 stop13h 20m

$607

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sun 4/27

6:35 am-2:15 pm

1 stop13h 40m

Chicago O'Hare Intl

Tue 5/13

10:25 pm-11:00 pm

1 stop18h 35m

$608

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 2/24

6:20 am-2:30 pm

1 stop14h 10m

Chicago O'Hare Intl

Tue 3/11

6:20 pm-10:35 am

1 stop11h 15m

$614

PortoChicago

OPO - ORD

OPOORD

Porto

Mon 2/24

8:20 am-2:30 pm

1 stop12h 10m

Chicago O'Hare Intl

Tue 3/11

10:45 pm-7:40 am

2 stops27h 55m

$616

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 54 results
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Best time to book a flight from Portugal to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Portugal 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.

Travel insights for flights from Portugal to Chicago

Get recent, data-driven insights about flights from Portugal to Chicago including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portugal to Chicago?

Currently, August is the cheapest month in which you can book a flight from Portugal to Chicago (average of $245). Flying from Portugal to Chicago in March is currently the most expensive (average of $325). 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.

What is the cheapest time of day to fly from PT to CHI?

Find hourly flight availability from Portugal to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

It’s optimal to fly from Portugal to Chicago in the morning. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight at noon.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated January 30, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Portugal to Chicago. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,454 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,454 reviews
Delta
8.0
Very good
8,454 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very good
8,454 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,454 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,584 reviews
Delta
8.0
Very good
8,454 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,475 reviews
Delta
8.0
Very good
8,454 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What are the cheapest airlines to fly from Portugal to Chicago one-way?

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $473. Turkish Airlines flights start at $556 while deals on TAP AIR PORTUGAL start at $598 one-way.

  • What are the most popular routes from Portugal to Chicago?

    Most travelers choose Lisbon Humberto Delgado - Chicago O'Hare Intl, Lisbon Humberto Delgado - Chicago Midway or Porto - Chicago O'Hare Intl when deciding on the best route from Portugal to Chicago.

  • What are the cheapest flights from Portugal to Chicago?

    While on average a flight from Portugal to Chicago is generally $1,370, our data shows the cheapest flight currently is $571. When looking at the most popular route, (Lisbon Humberto Delgado - Chicago O'Hare Intl), you can expect to pay $457 for that flight.

  • Can I find deals for flights from Portugal to Chicago that include hotel bookings?

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

  • How can I find direct flights from Portugal to Chicago?

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

  • Can I find deals for business class flights from Portugal to Chicago?

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

  • What is the cheapest month to book a flight from Portugal to Chicago?

    Currently, August is the cheapest month in which you can book a flight from Portugal to Chicago (average of $245). Flying from Portugal to Chicago in March is currently the most expensive (average of $325). 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.

See more FAQs

Traveling to a place near Portugal?

Book flights to Portugal if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Portugal to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Charles de Gaulle to Midway flights
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Frankfurt to St. Louis flights
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Leonardo da Vinci/Fiumicino to Midway flights
Madrid to Midway flights
Bruxelles-National to Midway flights
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Duesseldorf Intl to Midway flights
Stansted to O'Hare Intl flights

Top 3 airlines flying from Portugal to Chicago

Discover the top 3 airlines that operate flights from Portugal to Chicago. 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 2,558,603 searches. Data last updated January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$474Average$659FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$580Average$1,076FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$716Average$882FlexibilityNo cancel feeOn-time69%
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