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$245+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LIS
jul 7 — jul 141
seg 7/7
seg 7/14
1 adult, Economy
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Cheap flight deals from Chicago to Portugal

Keep the following information in mind while searching for Chicago to Portugal flight deals. Data was last updated julho 2, 2025.

Round-trip from

$431
(Flightnetwork)

One-way from

$245
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$884

Good round-trip deal

$564 or less

Good one-way deal

$363 or less
From Chicago (CHI) to Portugal
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One-way flight from Chicago (CHI) to Portugal
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Highest demand for flights based on searches. 17% potential increase in price ($153 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 July 2025
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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 julho 2, 2025.

This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/107:20 pmORD - FAO
2 stops32h 25mScandinavian Airlines
sáb 11/155:10 pmFAO - ORD
1 stop29h 35mScandinavian Airlines
Deal found 7/1$416
This oojo deal was found by Cheapflights users on 7/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 11/127:10 pmORD - FAO
1 stop14h 35mTAP AIR PORTUGAL
sex 11/286:05 amFAO - ORD
1 stop15h 10mTAP AIR PORTUGAL
Deal found 7/1$485
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 10/247:30 amORD - FNC
2 stops27h 10mScandinavian Airlines
sáb 11/14:10 pmFNC - ORD
1 stop30h 35mScandinavian Airlines
Deal found 7/1$496
This oojo deal was found by Cheapflights users on 7/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/166:00 pmORD - FNC
1 stop21h 00mTAP AIR PORTUGAL
qui 10/235:50 amFNC - ORD
1 stop12h 45mTAP AIR PORTUGAL
Deal found 7/1$525
This oojo deal was found by Cheapflights users on 7/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 10/246:00 pmORD - PDL
1 stop16h 00mTAP AIR PORTUGAL
sex 10/316:30 amPDL - ORD
1 stop13h 45mTAP AIR PORTUGAL
Deal found 7/2$526
This Mytrip deal was found by Cheapflights users on 7/1. 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.
sex 8/156:00 pmORD - FAO
2 stops22h 40mMultiple Airlines
sex 8/226:15 pmFAO - ORD
2 stops28h 15mMultiple Airlines
Deal found 7/1$539
This CheapOair deal was found by Cheapflights users on 7/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/243:55 pmORD - LIS
1 stop11h 25mMultiple Airlines
dom 11/303:25 pmLIS - ORD
1 stop30h 50mMultiple Airlines
Deal found 7/2$605
This Delta deal was found by Cheapflights users on 7/2. 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.
seg 9/2210:15 amORD - LIS
1 stop18h 30mDelta
qui 10/25:40 amLIS - ORD
2 stops21h 43mDelta
Deal found 7/2$608
This Finnair deal was found by Cheapflights users on 6/30. 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.
ter 9/910:35 pmORD - LIS
1 stop18h 25mFinnair
qui 9/186:35 amLIS - ORD
1 stop13h 40mFinnair
Deal found 6/30$610
This Expedia deal was found by Cheapflights users on 6/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/164:55 pmORD - LIS
1 stop16h 35mBritish Airways
qui 9/256:35 amLIS - ORD
1 stop13h 40mBritish Airways
Deal found 6/30$611
This KLM deal was found by Cheapflights users on 6/30. 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.
seg 11/104:25 pmORD - FNC
1 stop35h 10mKLM
dom 11/1610:10 amFNC - ORD
1 stop34h 20mKLM
Deal found 6/30$611
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/30. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/26:00 pmORD - LIS
Nonstop8h 00mTAP AIR PORTUGAL
qui 10/99:20 amLIS - ORD
Nonstop9h 15mTAP AIR PORTUGAL
Deal found 6/30$613

Cheapflights Fare Finder

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 julho 2, 2025.
Use the filters below to find and compare flights from Chicago to Portugal that are best for you.

Fly from

Chicago

Fly to

Portugal

Route

Depart

Return

Price

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

seg 11/10

7:20 pm-9:45 am

2 stops32h 25m

Faro

sáb 11/15

5:10 pm-4:45 pm

1 stop29h 35m

$416

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

qua 11/12

7:10 pm-3:45 pm

1 stop14h 35m

Faro

sex 11/28

6:05 am-3:15 pm

1 stop15h 10m

$485

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

sex 10/24

7:30 am-4:40 pm

2 stops27h 10m

Funchal Madeira

sáb 11/1

4:10 pm-5:45 pm

1 stop30h 35m

$496

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

qui 10/16

6:00 pm-9:00 pm

1 stop21h 00m

Funchal Madeira

qui 10/23

5:50 am-12:35 pm

1 stop12h 45m

$525

ChicagoPonta Delgada

ORD - PDL

ORDPDL

Chicago O'Hare Intl

sex 10/24

6:00 pm-3:00 pm

1 stop16h 00m

Ponta Delgada Nordela

sex 10/31

6:30 am-4:15 pm

1 stop13h 45m

$526

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

sex 8/15

6:00 pm-10:40 pm

2 stops22h 40m

Faro

sex 8/22

6:15 pm-4:30 pm

2 stops28h 15m

$539

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

seg 11/24

3:55 pm-9:20 am

1 stop11h 25m

Lisbon Humberto Delgado

dom 11/30

3:25 pm-4:15 pm

1 stop30h 50m

$605

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

seg 9/22

10:15 am-10:45 am

1 stop18h 30m

Lisbon Humberto Delgado

qui 10/2

5:40 am-9:23 pm

2 stops21h 43m

$608

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

ter 9/9

10:35 pm-11:00 pm

1 stop18h 25m

Lisbon Humberto Delgado

qui 9/18

6:35 am-2:15 pm

1 stop13h 40m

$610

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

ter 9/16

4:55 pm-3:30 pm

1 stop16h 35m

Lisbon Humberto Delgado

qui 9/25

6:35 am-2:15 pm

1 stop13h 40m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Portugal

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 $1,130). 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 julho 2, 2025.

It’s typically best to fly out from Chicago to Portugal at noon. Doing so could potentially save you 34% 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 December 16, 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. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 julho 2, 2025.
Read reviews from past customers who have flown Delta, Porter Airlines, and KLM from Chicago to Portugal. 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.
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Porter Airlines
8.0
Very good
298 reviews
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,301 reviews
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,472 reviews
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $245. American Airlines flights start at $288 while deals on British Airways start at $289 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 $1,604 for a flight from Chicago to Portugal. The cheapest flight overall is $237 while the most popular route, (Chicago O'Hare Intl - Lisbon Humberto Delgado) is currently priced at $461.

  • 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 $1,130). 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

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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 julho 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$415Average$828FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$444Average$561FlexibilityNo cancel feeOn-time76%
FinnairCheapest$463Average$739FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$468Average$745FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$472Average$755FlexibilityNo cancel feeOn-time77%
IberiaCheapest$473Average$784FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$490Average$702FlexibilityNo cancel feeOn-time72%
DeltaCheapest$498Average$738FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$504Average$749FlexibilityNo cancel feeOn-time70%
SWISSCheapest$517Average$733FlexibilityNo cancel feeOn-time79%

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