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$260+ Cheap flights from Chicago (CHI) to Lisbon (LIS)

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LIS
8月 9 — 8月 161
週日 8/9
週日 8/16
1 adult, Economy
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Find cheap flights from Chicago to Lisbon with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Chicago to Lisbon Humberto Delgado are usually found in February or January, booked 26 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

Cheap flight deals from Chicago to Lisbon

Cheapest flights from Chicago to Lisbon
Explore the most affordable flight options available from Chicago to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7月 10, 2026.

This Mytrip deal was found by Cheapflights users on 7/10. 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.
週一 8/247:25 am
ORD
-
LIS
2 stops17h 05m
Multiple Airlines
週一 8/318:15 am
LIS
-
ORD
1 stop12h 29m
Multiple Airlines
Deal found 7/10$837
This Mytrip deal was found by Cheapflights users on 7/9. 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.
週一 8/318:40 am
ORD
-
LIS
1 stop15h 50m
Multiple Airlines
週四 9/1010:40 pm
LIS
-
ORD
2 stops28h 40m
Multiple Airlines
Deal found 7/9$838
This American Airlines deal was found by Cheapflights users on 7/10. 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.
週三 12/163:30 pm
ORD
-
LIS
1 stop10h 10m
American Airlines
週二 12/226:30 am
LIS
-
ORD
1 stop14h 25m
American Airlines
Deal found 7/10$839
This Delta deal was found by Cheapflights users on 7/10. 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.
週六 11/71:28 pm
MDW
-
LIS
2 stops15h 57m
Delta
週六 11/145:00 am
LIS
-
MDW
2 stops17h 50m
Delta
Deal found 7/10$839
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週六 8/229:00 pm
ORD
-
LIS
1 stop18h 35m
Aer Lingus
週六 8/2911:25 am
LIS
-
ORD
1 stop13h 50m
Aer Lingus
Deal found 7/9$840
This Delta deal was found by Cheapflights users on 7/10. 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.
週三 9/237:01 pm
MDW
-
LIS
2 stops17h 44m
Delta
週二 9/295:35 am
LIS
-
MDW
2 stops18h 58m
Delta
Deal found 7/10$840
This FlightHub deal was found by Cheapflights users on 7/9. 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.
週六 8/159:00 pm
ORD
-
LIS
1 stop18h 35m
Aer Lingus
週六 8/2911:25 am
LIS
-
ORD
1 stop13h 50m
Aer Lingus
Deal found 7/9$841
This Cheapflightsfares deal was found by Cheapflights users on 7/9. 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.
週四 8/67:45 pm
ORD
-
LIS
Nonstop8h 10m
TAP AIR PORTUGAL
週四 8/139:15 am
LIS
-
ORD
Nonstop9h 25m
TAP AIR PORTUGAL
Deal found 7/9$842
This Cheapflightsfares deal was found by Cheapflights users on 7/9. 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.
週二 9/87:15 pm
ORD
-
LIS
1 stop22h 00m
Scandinavian Airlines
週二 10/69:15 pm
LIS
-
ORD
2 stops30h 13m
Scandinavian Airlines
Deal found 7/9$843
This Delta deal was found by Cheapflights users on 7/10. 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.
週四 10/226:45 pm
MDW
-
LIS
2 stops18h 00m
Delta
週一 11/25:00 am
LIS
-
MDW
2 stops19h 05m
Delta
Deal found 7/10$843
This Mytrip deal was found by Cheapflights users on 7/8. 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.
週六 8/228:40 am
ORD
-
LIS
1 stop15h 50m
Multiple Airlines
週六 8/298:15 am
LIS
-
ORD
2 stops14h 42m
Multiple Airlines
Deal found 7/8$844
This Delta deal was found by Cheapflights users on 7/8. 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.
週一 9/215:10 pm
ORD
-
LIS
1 stop12h 05m
Delta
週日 9/275:00 am
LIS
-
ORD
1 stop15h 15m
Delta
Deal found 7/8$845

Find flight deals from Chicago to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Lisbon (LIS). 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 7月 10, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$837
(FlightHub)

One-way from

$260
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,051

Good round-trip deal

$702 or less

Good one-way deal

$556 or less
Provider with most accurate pricing for Chicago (CHI)-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Lisbon Humberto Delgado flights.
Search Deals
From Chicago (CHI) to Lisbon Humberto Delgado
Search Deals
One-way flight from Chicago (CHI) to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($278 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Lisbon Humberto Delgado.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Lisbon Humberto Delgado.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Lisbon 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 7月 10, 2026.
Use the filters below to find and compare flights from Chicago to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

週一 9/21

1:55 pm-2:55 pm

2 stops19h 00m

Lisbon Humberto Delgado

週六 10/3

5:00 am-2:15 pm

1 stop15h 15m

$849

ChicagoLisbon

MDW - LIS

MDWLIS

Chicago Midway

週二 9/29

1:19 pm-2:35 pm

2 stops19h 16m

Lisbon Humberto Delgado

週一 10/5

5:00 am-6:19 pm

2 stops19h 19m

$863

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

週二 8/18

12:29 pm-11:15 am

2 stops16h 46m

Lisbon Humberto Delgado

週三 8/26

5:00 am-6:49 pm

2 stops19h 49m

$972

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

週二 9/8

10:30 am-11:15 am

2 stops18h 45m

Lisbon Humberto Delgado

週四 9/17

5:00 am-7:33 pm

2 stops20h 33m

$980

ChicagoLisbon

MDW - LIS

MDWLIS

Chicago Midway

週二 9/8

5:45 pm-2:55 pm

2 stops15h 10m

Lisbon Humberto Delgado

週二 10/6

5:00 am-6:05 pm

2 stops19h 05m

$980
Quickest round-trip

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

週日 8/23

9:42 am-10:15 am

1 stop18h 33m

Lisbon Humberto Delgado

週日 8/30

12:40 pm-4:00 pm

Nonstop9h 20m

$987

ChicagoLisbon

MDW - LIS

MDWLIS

Chicago Midway

週六 9/26

11:35 am-8:50 am

2 stops15h 15m

Lisbon Humberto Delgado

週六 10/10

5:35 am-6:05 pm

2 stops18h 30m

$991

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

週二 9/1

11:05 am-9:20 am

1 stop16h 15m

Lisbon Humberto Delgado

週六 9/12

5:05 am-2:55 pm

1 stop15h 50m

$1,024

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

週二 8/4

9:40 am-10:15 am

1 stop18h 35m

Lisbon Humberto Delgado

週三 8/19

12:40 pm-4:00 pm

Nonstop9h 20m

$1,025

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

週三 9/16

1:55 pm-2:55 pm

2 stops19h 00m

Lisbon Humberto Delgado

週日 9/27

5:00 am-2:15 pm

1 stop15h 15m

$1,030

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/7

Showing 1-10 of 39 resultsSorted by cheapest first
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Compare providers for flights from Chicago to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Lisbon in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Lisbon flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Chicago-Lisbon flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Chicago-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Lisbon flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon 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 Lisbon

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

Currently, August is the cheapest month in which you can book a flight from Chicago to Lisbon (average of $300). Flying from Chicago to Lisbon in September is currently the most expensive (average of $1,631). 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 LIS?

Find hourly flight availability from Chicago to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7月 10, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago to Lisbon as you normally would.

How much does it cost to fly round-trip from Chicago to Lisbon?

What’s the top layover airport for flights from Chicago to Lisbon?

Share of 1-stop round-trip flights from Chicago to Lisbon chosen by Cheapflights users in the past 12 months, using the same layover each way.

Madrid (MAD) – chosen by Cheapflights users on 20% of 1-stop itineraries from Chicago to Lisbon on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Lisbon?

Average round-trip fare for 1-stop flights from Chicago to Lisbon, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $397.

What’s the fastest layover option from Chicago to Lisbon?

Shortest average travel time for 1-stop one-way flights from Chicago to Lisbon, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 11h 30m.

Which airport typically offers the quickest layover for flights from Chicago to Lisbon?

Average layover duration for 1-stop one-way flights from Chicago to Lisbon, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via London (LHR) offer the fastest connection on this route, with an average layover time of 1h 48m.

How often are flights from Chicago to Lisbon delayed?

About 35% of weekly flights between Chicago and Lisbon have experienced delays in the past year, with the average delay time being 130 minutes.

What is the most punctual flight time for Chicago to Lisbon flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chicago to Lisbon flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 35% of flights being delayed.

How far ahead should I book a flight from Chicago to Lisbon?

To ensure you get the cheapest price possible for a flight from Chicago to Lisbon, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

The best insider tips for Chicago to Lisbon flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Lisbon trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD and LIS

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated 7月 10, 2026.
Read reviews from past customers who have flown United Airlines,TAP AIR PORTUGAL, andAmerican Airlines from Chicago to Lisbon. 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.
United Airlines
7.4
Good
9,977 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!
United Airlines
7.4
Good
9,977 reviews
United Airlines
7.4
Good
9,977 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!
TAP AIR PORTUGAL
7.2
Good
2,332 reviews
United Airlines
7.4
Good
9,977 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!
American Airlines
7.1
Good
11,807 reviews
United Airlines
7.4
Good
9,977 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!
Air Canada
7.1
Good
11,326 reviews
United Airlines
7.4
Good
9,977 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!
British Airways
6.7
Okay
8,107 reviews
United Airlines
7.4
Good
9,977 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Related info for your journey

Find useful and relevant information for your journey from Chicago to Lisbon. 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 into for flights to Lisbon from Chicago?

    If you book a flight to Lisbon from Chicago, you will be flying to Humberto Delgado, which is the city’s only airport. Lisbon Humberto Delgado (LIS) is located 4.2 mi from the center of Lisbon. There is 1 flight from Chicago to Humberto Delgado per day from 17 different airlines.

  • How long is the flight from Chicago to Lisbon?

    Delta, TAP AIR PORTUGAL, and United Airlines can get you from Chicago to Lisbon in just under 16h 15m. Your travel time can differ by up to 2h 45m. Airlines will cover a distance of 3996 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago to Lisbon round-trip?

    Flying on Virgin Atlantic is currently your cheapest option to Lisbon, with prices starting at $334. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and Icelandair, with the lowest prices starting at $369 and $371, respectively. Virgin Atlantic is priced at 59% lower than the current average price of a flight leaving 3 months from now.

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

    $283 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on TAP AIR PORTUGAL and British Airways, with prices starting from $321 and $374, respectively.

  • What are the cheapest flights from Chicago to Lisbon?

    Looking for the cheapest flight from Chicago to Lisbon? While on average our users pay $1,759, our data indicates the cheapest price to be $397. The most popular route (Chicago O'Hare Intl - Lisbon Humberto Delgado), is priced around $447.

  • Where are the most common layover locations when flying from Chicago to Lisbon?

    The most popular layover on flights from Chicago to Lisbon is Toronto. Philadelphia sees the second most layovers for non-direct flights flying from Chicago to Lisbon.

  • What are some popular things to do or see while on a layover in Toronto?

    Union Station, CN Tower, and Massey Hall are the most popular attractions in Toronto if you're in need of something to do during your layover. Union Station, CN Tower, and Massey Hall can be visited by traveling about 12.1 mi, 11.9 mi, and 12.1 mi respectively from Toronto Pearson Intl. Those landing in Toronto looking to spend some time exploring during their layover can rent a car for about $39 per day.

  • What are some popular points of interest to see during a layover in Philadelphia?

    Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park are currently the most popular points of interest in Philadelphia at the moment. Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park are located about 6.1 mi, 5.7 mi, and 4.3 mi, respectively from Philadelphia. Travelers in need of a car in Philadelphia can rent one for about $67 per day.

  • Where are the least popular layover locations for Chicago to Lisbon flights?

    The least popular layover on flights from Chicago to Lisbon is London.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Chicago to Lisbon (average of $300). Flying from Chicago to Lisbon in September is currently the most expensive (average of $1,631). 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 Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Ericeira
Oeiras
Beja
Torres Vedras
Nazaré
Colares
Sesimbra

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Chicago to Lisbon

Discover the top 10 airlines that operate flights from Chicago to Lisbon. 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 7月 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$334Average$583FlexibilityNo cancel feeOn-time72%
Scandinavian AirlinesCheapest$369Average$496FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$371Average$473FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$470Average$625FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$483Average$797FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$484Average$878FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$489Average$719FlexibilityNo cancel feeOn-time79%
KLMCheapest$492Average$600FlexibilityNo cancel feeOn-time75%
DeltaCheapest$494Average$726FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$496Average$781FlexibilityNo cancel feeOn-time77%

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.