Lisbon

$414+ Cheap flights from St. Louis (STL) 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIS
Apr 28 — May 51
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Lisbon

Cheapest flights from St. Louis to Lisbon
Explore the most affordable flight options available from St. Louis to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.

This Iberia deal was found by Cheapflights users on 3/24. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/269:40 pm
STL
-
LIS
1 stop19h 25m
Multiple Airlines
Wed 5/66:35 am
LIS
-
STL
2 stops18h 58m
Multiple Airlines
Deal found 3/24$662
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/268:03 pm
STL
-
LIS
2 stops15h 42m
American Airlines
Wed 5/66:35 am
LIS
-
STL
2 stops18h 58m
American Airlines
Deal found 3/24$666
This Air Canada deal was found by Cheapflights users on 3/24. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:15 pm
STL
-
LIS
2 stops16h 20m
Multiple Airlines
Tue 11/105:00 am
LIS
-
STL
2 stops40h 30m
Multiple Airlines
Deal found 3/24$676
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:50 pm
STL
-
LIS
1 stop17h 00m
United Airlines
Tue 11/1010:15 am
LIS
-
STL
1 stop12h 25m
United Airlines
Deal found 3/24$692
This United Airlines deal was found by Cheapflights users on 3/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:25 am
STL
-
LIS
1 stop20h 50m
United Airlines
Thu 11/55:00 am
LIS
-
STL
2 stops16h 30m
United Airlines
Deal found 3/28$713
This KLM deal was found by Cheapflights users on 3/27. 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 11/44:13 pm
STL
-
LIS
1 stop10h 47m
KLM
Tue 11/105:00 am
LIS
-
STL
2 stops18h 06m
KLM
Deal found 3/27$716
This KLM deal was found by Cheapflights users on 3/27. 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.
Tue 11/34:13 pm
STL
-
LIS
1 stop10h 47m
KLM
Mon 11/911:25 am
LIS
-
STL
2 stops18h 14m
KLM
Deal found 3/27$717
This oojo deal was found by Cheapflights users on 3/27. 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.
Wed 10/281:00 pm
STL
-
LIS
1 stop15h 05m
British Airways
Thu 11/511:05 am
LIS
-
STL
1 stop15h 50m
British Airways
Deal found 3/27$722
This CheapOair deal was found by Cheapflights users on 3/25. 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.
Sun 4/265:21 pm
STL
-
LIS
2 stops23h 44m
British Airways
Sat 5/26:55 pm
LIS
-
STL
2 stops27h 46m
British Airways
Deal found 3/25$723

Find flight deals from St. Louis to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 March 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$662
(Iberia)

One-way from

$414
(Justfly.com)

Popular in

December

Cheapest in

April

Average price

$789
Provider with most accurate pricing for Lambert-St Louis-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Lisbon Humberto Delgado flights.
From Lambert-St Louis to Lisbon Humberto Delgado
One-way flight from Lambert-St Louis to Lisbon Humberto Delgado
Highest demand for flights based on searches. 22% potential increase in price ($309 potential increase over avg. RT price).
Cheapest flight prices on average. 16% potential price decrease ($149 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis 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 March 29, 2026.
Use the filters below to find and compare flights from St. Louis to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 4/16

1:29 pm-9:05 am

1 stop13h 36m

Lisbon Humberto Delgado

Thu 4/23

6:35 am-6:04 pm

2 stops17h 29m

$775

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 4/16

12:27 pm-11:25 pm

2 stops28h 58m

Lisbon Humberto Delgado

Thu 4/23

6:35 am-10:17 pm

2 stops21h 42m

$816

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/19

8:15 pm-9:20 am

2 stops31h 05m

Lisbon Humberto Delgado

Sun 4/26

5:05 am-11:11 pm

2 stops24h 06m

$822

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 4/18

5:35 pm-6:45 pm

2 stops19h 10m

Lisbon Humberto Delgado

Sat 4/25

5:35 am-8:44 pm

2 stops21h 09m

$907
Quickest round-trip

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 5/11

5:36 pm-2:55 pm

2 stops15h 19m

Lisbon Humberto Delgado

Fri 5/22

10:00 am-5:05 pm

1 stop13h 05m

$926

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 9/8

7:01 am-9:20 am

2 stops20h 19m

Lisbon Humberto Delgado

Wed 10/7

11:25 am-6:41 pm

1 stop13h 16m

$1,016

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 8/29

5:32 pm-11:00 am

2 stops35h 28m

Lisbon Humberto Delgado

Wed 9/9

11:25 am-6:41 pm

1 stop13h 16m

$1,017

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 4/17

4:30 pm-3:35 pm

2 stops17h 05m

Lisbon Humberto Delgado

Fri 4/24

7:20 am-7:30 pm

1 stop18h 10m

$1,065

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 6/28

1:20 pm-9:20 am

1 stop14h 00m

Lisbon Humberto Delgado

Fri 7/10

11:25 am-3:46 pm

2 stops34h 21m

$1,147

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 7/1

8:55 am-11:00 am

1 stop20h 05m

Lisbon Humberto Delgado

Wed 7/8

11:25 am-12:11 pm

2 stops30h 46m

$1,152

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from St. Louis 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 St. Louis to Lisbon in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*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 St. Louis-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub 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 St. Louis-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 St. Louis to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from St. Louis 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 St. Louis to Lisbon

How far ahead should I book a flight from St. Louis to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Lisbon. Price data was last updated on March 13, 2026.

To ensure you get the cheapest price possible for a flight from St. Louis to Lisbon, you should look to book at least 64 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 St. Louis to Lisbon?

Currently, February is the cheapest month in which you can book a flight from St. Louis to Lisbon (average of $502). Flying from St. Louis to Lisbon in June is currently the most expensive (average of $1,004). 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.

How much does it cost to fly round-trip from St. Louis to Lisbon?

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 March 29, 2026.
Read through reviews of airlines operating flights from St. Louis to Lisbon, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from St. Louis to Lisbon?

    Finnair, United Airlines, and Delta can get you from St. Louis to Lisbon in just under 19h 10m. Your travel time can differ by up to 11h 55m. The distance from St. Louis to Lisbon is about 4212 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Lisbon round-trip?

    Currently priced at $505, American Airlines will fly you from St. Louis to Lisbon and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Iberia - these airlines can fly you to your destination from $558 and $571, respectively. Users have found that American Airlines is 51% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from St. Louis to Lisbon one-way?

    $342 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $384 and $391, respectively.

  • Can I find deals for flights from St. Louis to Lisbon that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Lisbon?

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

  • Can I find deals for business class flights from St. Louis to Lisbon?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Lisbon?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Lisbon (average of $502). Flying from St. Louis to Lisbon in June is currently the most expensive (average of $1,004). 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
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from St. Louis to Lisbon

Discover the top 7 airlines that operate flights from St. Louis 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 March 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$505Average$1,171FlexibilityNo cancel feeOn-time71%
DeltaCheapest$558Average$653FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$571Average$754FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$574Average$686FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$606Average$820FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$610Average$993FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$702Average$1,115FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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.