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

Flying on Delta is currently your cheapest option to Lisbon, with prices starting at $581. Additional round-trip tickets that might be worth considering are offered by American Airlines and Finnair, with the lowest prices starting at $583 and $584, respectively. Delta is priced at 22% 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?

$279 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on British Airways and American Airlines, with prices starting from $287 and $289, respectively.

In terms of precipitation, rainfall in Lisbon 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 Lisbon when rainfall is around 0.2 in.

If weather is an important factor for your trip to Lisbon, 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).

What are the cheapest flights from Chicago to Lisbon?

Looking for the cheapest flight from Chicago to Lisbon? While on average our users pay $1,594, our data indicates the cheapest price to be $227. The most popular route (Chicago O'Hare Intl - Lisbon Humberto Delgado), is priced around $425.

What are the most popular airlines that fly from Chicago to Lisbon?

Before booking your flight from Chicago to Lisbon check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

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

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

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

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

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

Hyde Park, Buckingham Palace, and Piccadilly Circus are the most popular attractions in London if you're in need of something to do during your layover. Hyde Park, Buckingham Palace, and Piccadilly Circus can be visited by traveling about 12.5 mi, 13.7 mi, and 14.1 mi respectively from London Heathrow. Those landing in London looking to spend some time exploring during their layover can rent a car for about $49 per day.

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

Union Station, CN Tower, and Hockey Hall of Fame are currently the most popular points of interest in Toronto at the moment. Union Station, CN Tower, and Hockey Hall of Fame are located about 12.1 mi, 11.9 mi, and 12.3 mi, respectively from Toronto Pearson Intl. Travelers in need of a car in Toronto can rent one for about $44 per day.

What is the cheapest day to fly round-trip from Chicago to Lisbon?

Travelers have found that booking a Tuesday departure is the best way to save up to 39% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

Find a great deal and save up to 3% by booking at least 9 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Chicago to Lisbon within the next two weeks, with the cheapest ticket starting at $508.

What is the cheapest month to fly from Chicago to Lisbon?

February is one of the best times of the year to fly to Lisbon from Chicago. Prices for February average $746 per person but you can even find prices for as low as $462. The most expensive prices can be found in the month of June. Opting for a February flight can save you 22% on your journey compared to booking in June

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 18 different airlines.

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.

$279+ Flights from Chicago to Lisbon

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Cheapflights Tip: The best prices from Chicago to Lisbon Humberto Delgado are usually found in February or January, booked 8 days in advance, depart on a Wednesday or Sunday and return on a Friday

Cheap flight deals from Chicago to Lisbon

Round-trip from	$581 (Delta)
One-way from	$279 (FlightHub)
Popular in	June
Cheapest in	February
Average price	$884
Good round-trip deal	$539 or less
Good one-way deal	$359 or less

From Chicago (CHI) to Lisbon Humberto Delgado

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One-way flight from Chicago (CHI) to Lisbon Humberto Delgado

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Highest demand for flights based on searches. 16% potential increase in price ($146 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($16 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 Lisbon Humberto Delgado.

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Price to beat on a one-way flight from Chicago (CHI) to Lisbon Humberto Delgado.

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Find 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 July 14, 2025.

Thu 9/186:00 pmORD - LIS

Nonstop8h 00mTAP AIR PORTUGAL

Mon 9/221:25 pmLIS - ORD

Nonstop9h 15mTAP AIR PORTUGAL

Deal found 7/14

$582

Fri 11/147:15 amORD - LIS

2 stops20h 05mMultiple Airlines

Wed 11/195:00 amLIS - ORD

1 stop21h 05mMultiple Airlines

Deal found 7/14

$583

Sun 9/2110:35 pmORD - LIS

1 stop18h 30mBritish Airways

Wed 10/18:45 pmLIS - ORD

1 stop23h 30mBritish Airways

Deal found 7/14

$591

Fri 8/158:00 pmORD - LIS

2 stops55h 20mUnited Airlines

Fri 8/295:05 amLIS - ORD

1 stop20h 50mUnited Airlines

Deal found 7/13

$592

Tue 9/2310:30 pmORD - LIS

1 stop18h 55mFinnair

Tue 9/306:35 amLIS - ORD

1 stop18h 15mFinnair

Deal found 7/14

$594

Sun 11/98:20 pmORD - LIS

2 stops55h 00mAir Canada

Sun 11/1610:50 amLIS - ORD

2 stops30h 28mAir Canada

Deal found 7/13

$596

Tue 10/145:59 pmMDW - LIS

2 stops14h 51mDelta

Tue 10/215:00 amLIS - MDW

2 stops19h 36mDelta

Deal found 7/12

$602

Tue 9/167:50 pmORD - LIS

1 stop21h 45mTurkish Airlines

Tue 9/234:45 pmLIS - ORD

1 stop22h 55mTurkish Airlines

Deal found 7/13

$604

Sun 8/104:30 pmORD - LIS

1 stop13h 20mIberia

Tue 8/1911:05 amLIS - ORD

1 stop17h 44mIberia

Deal found 7/14

$606

Mon 9/222:05 pmORD - LIS

1 stop14h 40mDelta

Thu 10/25:40 amLIS - ORD

2 stops18h 19mDelta

Deal found 7/14

$608

Mon 8/253:35 pmORD - LIS

2 stops11h 30mAmerican Airlines

Fri 9/56:35 amLIS - ORD

1 stop13h 40mAmerican Airlines

Deal found 7/13

$615

Tue 9/239:40 pmORD - LIS

1 stop18h 10mLufthansa

Mon 10/67:30 amLIS - ORD

1 stop35h 25mLufthansa

Deal found 7/12

$618

Best flights from Chicago to Lisbon
Discover carefully curated flight deals from Chicago to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 14, 2025.

Wed 10/226:00 amMDW - LIS

2 stops22h 45mDelta

Tue 10/2812:20 pmLIS - MDW

2 stops38h 24mDelta

Deal found 7/14

$581

Mon 8/182:00 pmORD - LIS

2 stops23h 15mMultiple Airlines

Thu 8/287:40 amLIS - ORD

2 stops15h 57mMultiple Airlines

Deal found 7/14

$582

Mon 8/48:37 amORD - LIS

1 stop18h 28mAmerican Airlines

Fri 8/296:35 amLIS - ORD

1 stop13h 40mAmerican Airlines

Deal found 7/14

$583

Sun 9/215:40 pmORD - LIS

1 stop23h 25mFinnair

Tue 9/306:35 amLIS - ORD

1 stop18h 15mFinnair

Deal found 7/14

$584

Thu 10/169:00 amORD - LIS

1 stop19h 30mUnited Airlines

Thu 10/305:00 amLIS - ORD

1 stop21h 05mUnited Airlines

Deal found 7/14

$585

Fri 8/226:00 pmORD - LIS

Nonstop7h 55mTAP AIR PORTUGAL

Fri 9/512:45 pmLIS - ORD

Nonstop9h 25mTAP AIR PORTUGAL

Deal found 7/14

$587

Sat 10/187:25 pmORD - LIS

1 stop19h 55mIcelandair

Thu 10/2310:20 pmLIS - ORD

1 stop25h 55mIcelandair

Deal found 7/13

$592

Fri 10/176:20 pmORD - LIS

1 stop10h 45mAir Canada

Thu 10/3010:55 amLIS - ORD

1 stop29h 23mAir Canada

Deal found 7/13

$594

Wed 8/204:30 pmORD - LIS

1 stop21h 35mBritish Airways

Tue 8/268:45 pmLIS - ORD

1 stop23h 30mBritish Airways

Deal found 7/13

$600

Sat 1/39:50 pmORD - LIS

2 stops19h 00mLufthansa

Thu 1/222:10 pmLIS - ORD

1 stop34h 15mLufthansa

Deal found 7/13

$603

Thu 9/257:50 pmORD - LIS

1 stop21h 45mTurkish Airlines

Sun 10/54:30 pmLIS - ORD

1 stop35h 30mTurkish Airlines

Deal found 7/13

$604

Sun 8/104:30 pmORD - LIS

1 stop13h 20mIberia

Tue 8/1911:05 amLIS - ORD

1 stop17h 44mIberia

Deal found 7/14

$606

Last-minute flights from Chicago to Lisbon
Discover last-minute flight deals from Chicago to Lisbon. Data last updated July 14, 2025 and is based on user searches.

Sat 7/196:15 pmORD - LIS

Nonstop8h 00mTAP AIR PORTUGAL

Fri 7/2512:45 pmLIS - ORD

Nonstop9h 25mTAP AIR PORTUGAL

Deal found 7/12

$1,014

Sat 7/191:09 pmMDW - LIS

2 stops16h 06mDelta

Sun 7/275:00 amLIS - MDW

2 stops19h 40mDelta

Deal found 7/14

$1,446

Mon 7/215:10 pmORD - LIS

1 stop16h 50mLOT

Mon 7/285:55 pmLIS - ORD

1 stop27h 15mLOT

Deal found 7/14

$1,110

Tue 7/224:43 pmORD - LIS

2 stops31h 47mMultiple Airlines

Fri 7/2511:35 amLIS - ORD

2 stops26h 20mMultiple Airlines

Deal found 7/12

$1,017

Tue 7/2211:52 amORD - LIS

1 stop15h 13mAmerican Airlines

Sat 7/2611:05 amLIS - ORD

1 stop15h 08mAmerican Airlines

Deal found 7/12

$1,112

Tue 7/225:20 pmMDW - LIS

1 stop30h 35mMultiple Airlines

Mon 7/2810:00 amLIS - MDW

2 stops28h 45mMultiple Airlines

Deal found 7/13

$1,158

Thu 7/244:30 pmORD - LIS

1 stop17h 35mBritish Airways

Tue 8/58:45 pmLIS - ORD

1 stop28h 05mBritish Airways

Deal found 7/14

$890

Thu 7/242:30 pmORD - LIS

1 stop12h 35mIberia

Wed 8/66:35 amLIS - ORD

2 stops22h 14mIberia

Deal found 7/14

$1,069

Mon 8/411:52 amORD - LIS

1 stop15h 13mIberia

Thu 8/2111:05 amLIS - ORD

1 stop17h 44mIberia

Deal found 7/13

$597

Mon 8/410:20 amORD - LIS

1 stop18h 25mDelta

Thu 8/215:00 amLIS - ORD

2 stops19h 05mDelta

Deal found 7/13

$628

Sat 8/99:11 pmORD - LIS

1 stop29h 54mBritish Airways

Wed 8/2011:05 amLIS - ORD

1 stop12h 15mBritish Airways

Deal found 7/13

$598

Fri 8/158:00 pmORD - LIS

2 stops55h 20mUnited Airlines

Fri 8/295:05 amLIS - ORD

1 stop20h 50mUnited Airlines

Deal found 7/13

$592

One-way flights from Chicago to Lisbon
Search for one-way flight options from Chicago to Lisbon. Find affordable one-way fares based on user searches. Data last updated July 14, 2025.

Sun 8/106:00 pmORD - LIS

Nonstop8h 00mTAP AIR PORTUGAL

Deal found 7/13

$279

Wed 10/111:13 amORD - LIS

3 stops26h 07mMultiple Airlines

Deal found 7/12

$280

Mon 9/88:40 pmORD - LIS

1 stop20h 30mBritish Airways

Deal found 7/13

$287

Mon 8/253:35 pmORD - LIS

2 stops11h 30mAmerican Airlines

Deal found 7/12

$289

Tue 10/219:15 amMDW - LIS

2 stops31h 15mMultiple Airlines

Deal found 7/13

$291

Sun 8/3110:30 pmORD - LIS

1 stop18h 55mIberia

Deal found 7/12

$298

Wed 9/310:15 pmORD - LIS

1 stop17h 05mIcelandair

Deal found 7/12

$299

Sun 10/269:20 amMDW - LIS

2 stops17h 40mDelta

Deal found 7/14

$419

Cheapflights Fare Finder

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

ChicagoLisbon

MDW - LIS

MDWLIS

Chicago Midway

Wed 10/22

6:00 am-10:45 am

2 stops22h 45m

Lisbon Humberto Delgado

Tue 10/28

12:20 pm-9:44 pm

2 stops38h 24m

$581

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Fri 8/15

8:00 pm-9:20 am

2 stops55h 20m

Lisbon Humberto Delgado

Fri 8/29

5:05 am-7:55 pm

1 stop20h 50m

$592

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Mon 8/18

2:00 pm-6:40 pm

2 stops22h 40m

Lisbon Humberto Delgado

Wed 8/27

10:00 pm-12:55 pm

2 stops20h 55m

$593

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 9/23

10:25 pm-11:25 pm

1 stop19h 00m

Lisbon Humberto Delgado

Tue 9/30

6:35 am-6:50 pm

1 stop18h 15m

$594

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 11/9

8:20 pm-9:20 am

2 stops55h 00m

Lisbon Humberto Delgado

Sun 11/16

10:50 am-11:18 am

2 stops30h 28m

$596

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 8/20

4:30 pm-8:05 pm

1 stop21h 35m

Lisbon Humberto Delgado

Tue 8/26

8:45 pm-2:15 pm

1 stop23h 30m

$600

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sat 1/3

9:50 pm-10:50 pm

2 stops19h 00m

Lisbon Humberto Delgado

Thu 1/22

2:10 pm-6:25 pm

1 stop34h 15m

$603

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 9/16

7:50 pm-11:35 pm

1 stop21h 45m

Lisbon Humberto Delgado

Tue 9/23

4:45 pm-9:40 am

1 stop22h 55m

$604

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Fri 1/9

12:15 pm-8:00 am

1 stop13h 45m

Lisbon Humberto Delgado

Sat 1/17

10:00 am-7:25 pm

1 stop15h 25m

$606

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 8/26

2:44 pm-9:05 am

1 stop12h 21m

Lisbon Humberto Delgado

Tue 9/2

6:35 am-2:15 pm

1 stop13h 40m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

Showing 1-10 of 22 results

The best insider tips for Chicago to Lisbon flights

Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Lisbon trip

Airports

ORD

Prepare for long walks between terminals at ORD. Know your airline's terminal to avoid unnecessary travel.

LIS

From LIS, the metro line takes 20 minutes to reach downtown Lisbon, offering a convenient and cost-effective option.

Our travel experts

Ramsey Qubein

Expert on ORD and LIS

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

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 8 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.

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Lisbon (average of $612). Flying from Chicago to Lisbon 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 LIS?

It’s typically best to fly out from Chicago to Lisbon in the afternoon. Doing so could potentially save you 34% on the flight price compared to flying at noon, which is usually more expensive.

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

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

Reviews of airlines servicing Lisbon

Read reviews from past customers who have flown Delta, Finnair, and United 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.

Delta

8.0

Very good

7,953 reviews

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

7,953 reviews

Delta

8.0

Very good

7,953 reviews

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

1,316 reviews

Delta

8.0

Very good

7,953 reviews

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!

United Airlines

7.4

Good

8,856 reviews

Delta

8.0

Very good

7,953 reviews

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!

Turkish Airlines

7.3

Good

3,901 reviews

Delta

8.0

Very good

7,953 reviews

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!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,953 reviews

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

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 18 different airlines.
What are the cheapest airlines flying from Chicago to Lisbon round-trip?
Flying on Delta is currently your cheapest option to Lisbon, with prices starting at $581. Additional round-trip tickets that might be worth considering are offered by American Airlines and Finnair, with the lowest prices starting at $583 and $584, respectively. Delta is priced at 22% 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?
$279 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on British Airways and American Airlines, with prices starting from $287 and $289, 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 $1,594, our data indicates the cheapest price to be $227. The most popular route (Chicago O'Hare Intl - Lisbon Humberto Delgado), is priced around $425.
Where are the most common layover locations when flying from Chicago to Lisbon?
The most popular layover on flights from Chicago to Lisbon is London. Toronto 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 London?
Hyde Park, Buckingham Palace, and Piccadilly Circus are the most popular attractions in London if you're in need of something to do during your layover. Hyde Park, Buckingham Palace, and Piccadilly Circus can be visited by traveling about 12.5 mi, 13.7 mi, and 14.1 mi respectively from London Heathrow. Those landing in London looking to spend some time exploring during their layover can rent a car for about $49 per day.
What are some popular points of interest to see during a layover in Toronto?
Union Station, CN Tower, and Hockey Hall of Fame are currently the most popular points of interest in Toronto at the moment. Union Station, CN Tower, and Hockey Hall of Fame are located about 12.1 mi, 11.9 mi, and 12.3 mi, respectively from Toronto Pearson Intl. Travelers in need of a car in Toronto can rent one for about $44 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 Philadelphia.
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, January is the cheapest month in which you can book a flight from Chicago to Lisbon (average of $612). Flying from Chicago to Lisbon 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 Lisbon

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Other flights to Lisbon

Top 10 airlines flying from Chicago to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$436	Average$561	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$445	Average$771	FlexibilityNo cancel fee	On-time77%
Finnair	Cheapest$463	Average$731	FlexibilityNo cancel fee	On-time76%
Virgin Atlantic	Cheapest$490	Average$702	FlexibilityNo cancel fee	On-time72%
TAP AIR PORTUGAL	Cheapest$495	Average$825	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$511	Average$758	FlexibilityNo cancel fee	On-time71%
SWISS	Cheapest$517	Average$740	FlexibilityNo cancel fee	On-time79%
KLM	Cheapest$527	Average$650	FlexibilityNo cancel fee	On-time75%
British Airways	Cheapest$529	Average$763	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$539	Average$765	FlexibilityNo cancel fee	On-time69%

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$279+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Chicago to Lisbon with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Chicago to Lisbon Humberto Delgado are usually found in February or January, booked 8 days in advance, depart on a Wednesday or Sunday and return on a Friday

Cheap flight deals from Chicago to Lisbon

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Chicago to Lisbon

Cheapest flights from Chicago to LisbonExplore 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 July 14, 2025.

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 July 14, 2025.

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Use the filters below to find and compare flights from Chicago to Lisbon that are best for you.

The best insider tips for Chicago to Lisbon flights

Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Lisbon trip

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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.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Lisbon. Price data was last updated on July 11, 2025.

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

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 July 14, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to Lisbon. Price data was last updated on December 16, 2024.

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 July 14, 2025.

Read reviews from past customers who have flown Delta, Finnair, and United 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.

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?

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

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

What are the cheapest flights from Chicago to Lisbon?

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

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

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

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

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

How can I find direct flights from Chicago to Lisbon?

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

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

Traveling to a place near Lisbon?

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Alternative routes for Chicago to Lisbon

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Top 10 airlines flying from Chicago to Lisbon

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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 July 14, 2025.