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$264+ Cheap flights from Chicago (CHI) to Portugal

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LIS
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Chicago to Portugal

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Portugal (PT0). 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 21, 2025.

Round-trip from

$464
(Flightnetwork)

One-way from

$264
(Kiwi.com)

Good round-trip deal

$565 or less

Good one-way deal

$441 or less
From Chicago (CHI) to Portugal
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One-way flight from Chicago (CHI) to Portugal
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Price to beat on a round-trip flight from Chicago (CHI) to Portugal.
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Price to beat on a one-way flight from Chicago (CHI) to Portugal.
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Find flight deals from Chicago to Portugal

Cheapest flights from Chicago to Portugal
Explore the most affordable flight options available from Chicago to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Flightnetwork deal was found by Cheapflights users on 1/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/248:20 pmORD - FAO
1 stop21h 30mTAP AIR PORTUGAL
Fri 2/76:05 amFAO - ORD
1 stop15h 25mTAP AIR PORTUGAL
Deal found 1/21$464
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Sun 2/28:25 pmORD - OPO
1 stop16h 35mTAP AIR PORTUGAL
Wed 2/128:55 amOPO - ORD
1 stop12h 35mTAP AIR PORTUGAL
Deal found 1/21$465
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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.
Tue 2/184:45 pmORD - OPO
1 stop17h 15mIberia
Wed 2/268:20 amOPO - ORD
1 stop12h 10mIberia
Deal found 1/20$493
This Gotogate deal was found by Cheapflights users on 1/20. 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.
Wed 3/57:05 pmORD - OPO
1 stop34h 45mMultiple Airlines
Wed 3/126:00 amOPO - ORD
2 stops18h 37mMultiple Airlines
Deal found 1/20$504
This American Airlines deal was found by Cheapflights users on 1/19. 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 2/210:00 pmORD - OPO
2 stops16h 00mAmerican Airlines
Wed 2/128:20 amOPO - ORD
1 stop12h 10mAmerican Airlines
Deal found 1/19$505
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 1/2910:00 pmORD - LIS
1 stop17h 50mAmerican Airlines
Wed 2/58:20 amLIS - ORD
2 stops17h 30mAmerican Airlines
Deal found 1/20$506
This Booking.com deal was found by Cheapflights users on 1/20. 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.
Wed 3/53:35 pmORD - OPO
2 stops15h 15mAir Canada
Wed 3/126:00 amOPO - ORD
2 stops18h 37mAir Canada
Deal found 1/20$506
This British Airways deal was found by Cheapflights users on 1/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/45:00 pmORD - LIS
1 stop15h 45mMultiple Airlines
Mon 3/106:45 pmLIS - ORD
1 stop25h 45mMultiple Airlines
Deal found 1/20$507
This Delta deal was found by Cheapflights users on 1/20. 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.
Wed 1/2910:05 amORD - LIS
1 stop15h 55mDelta
Thu 2/65:30 amLIS - ORD
1 stop15h 35mDelta
Deal found 1/20$509
This KLM deal was found by Cheapflights users on 1/19. 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.
Wed 2/511:05 amORD - LIS
2 stops14h 55mKLM
Tue 2/1111:25 amLIS - ORD
1 stop33h 05mKLM
Deal found 1/19$510
This Air France deal was found by Cheapflights users on 1/20. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/252:08 pmMDW - LIS
2 stops12h 52mMultiple Airlines
Wed 3/511:15 amLIS - MDW
2 stops17h 05mMultiple Airlines
Deal found 1/20$511
This Air France deal was found by Cheapflights users on 1/20. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/45:20 pmORD - LIS
1 stop15h 50mAir France
Tue 3/1111:15 amLIS - ORD
2 stops15h 11mAir France
Deal found 1/20$513

Find flights from Chicago to Portugal within your budget

Customize your flight search to find flights from Chicago to Portugal 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 21, 2025.

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Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 2/2

8:25 pm-7:00 pm

1 stop16h 35m

Porto

Wed 2/12

8:55 am-3:30 pm

1 stop12h 35m

$465

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Fri 2/21

8:20 pm-11:50 pm

1 stop21h 30m

Faro

Tue 3/4

11:15 am-3:30 pm

1 stop34h 15m

$486

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 2/18

4:45 pm-4:00 pm

1 stop17h 15m

Porto

Wed 2/26

8:20 am-2:30 pm

1 stop12h 10m

$493

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 3/5

7:05 pm-11:50 am

1 stop34h 45m

Porto

Wed 3/12

6:00 am-7:37 pm

2 stops18h 37m

$504

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 2/2

10:00 pm-8:00 pm

2 stops16h 00m

Porto

Wed 2/12

8:20 am-2:30 pm

1 stop12h 10m

$505

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 3/5

3:35 pm-12:50 pm

2 stops15h 15m

Porto

Wed 3/12

6:00 am-7:37 pm

2 stops18h 37m

$506

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 3/4

5:00 pm-2:45 pm

1 stop15h 45m

Lisbon Humberto Delgado

Mon 3/10

6:45 pm-3:30 pm

1 stop25h 45m

$507

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 2/5

11:05 am-8:00 am

2 stops14h 55m

Lisbon Humberto Delgado

Thu 2/13

3:25 pm-2:30 pm

1 stop29h 05m

$509

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 2/2

12:35 pm-8:00 am

1 stop13h 25m

Lisbon Humberto Delgado

Fri 2/14

10:00 am-6:41 pm

1 stop14h 41m

$510

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 2/26

10:05 am-6:35 am

2 stops14h 30m

Lisbon Humberto Delgado

Tue 3/4

10:00 am-5:47 pm

1 stop13h 47m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to Portugal

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

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

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Portugal (average of $612). Flying from Chicago to Portugal in June is currently the most expensive (average of $1,247). 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 CHI to PT?

Find hourly flight availability from Chicago to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

It’s typically best to fly out from Chicago to Portugal at noon. Doing so could potentially save you 35% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Chicago to Portugal?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Portugal. Price data was last updated on April 28, 2024.

Travelers seeking maximum savings on their Chicago to Portugal flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Portugal by month

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

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

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

If weather is an important factor for your trip to Portugal, 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 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated January 21, 2025.
Read reviews from past customers who have flown Delta, SWISS and Lufthansa from Chicago to Portugal. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.9
Good
277 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Portugal. 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 Chicago to Portugal one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $321. Air Transat flights start at $358 while deals on Porter Airlines start at $359 one-way.

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

    The most popular route from Chicago to Portugal is Chicago O'Hare Intl - Lisbon Humberto Delgado. You may also consider Chicago Midway - Lisbon Humberto Delgado or Chicago O'Hare Intl - Porto.

  • What are the cheapest flights from Chicago to Portugal?

    On average you can expect to pay $1,522 for a flight from Chicago to Portugal. The cheapest flight overall is $359 while the most popular route, (Chicago O'Hare Intl - Lisbon Humberto Delgado) is currently priced at $470.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago to Portugal 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 Chicago to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Portugal (average of $612). Flying from Chicago to Portugal in June is currently the most expensive (average of $1,247). 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 Chicago to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Chicago to Portugal

Discover the top 10 airlines that operate flights from Chicago to Portugal. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$415Average$876FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$463Average$754FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$468Average$770FlexibilityNo cancel feeOn-time71%
IberiaCheapest$480Average$704FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$490Average$702FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$506Average$820FlexibilityNo cancel feeOn-time70%
DeltaCheapest$518Average$782FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$525Average$1,029FlexibilityNo cancel feeOn-time69%
KLMCheapest$528Average$771FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$534Average$800FlexibilityNo cancel feeOn-time76%
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