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Lisbon

$342+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIS
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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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 February 11, 2026.

This Mytrip deal was found by Cheapflights users on 2/9. 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.
Wed 11/44:15 pm
STL
-
LIS
2 stops35h 05m
Multiple Airlines
Wed 11/255:00 am
LIS
-
STL
1 stop14h 55m
Multiple Airlines
Deal found 2/9$473
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Tue 11/37:30 am
STL
-
LIS
2 stops19h 50m
United Airlines
Mon 11/95:00 am
LIS
-
STL
2 stops33h 37m
United Airlines
Deal found 2/7$499
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:00 am
STL
-
LIS
2 stops18h 30m
United Airlines
Fri 5/15:05 am
LIS
-
STL
2 stops23h 54m
United Airlines
Deal found 2/10$500
This Delta deal was found by Cheapflights users on 2/10. 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.
Tue 3/103:05 pm
STL
-
LIS
2 stops21h 25m
Delta
Tue 3/175:00 am
LIS
-
STL
2 stops20h 42m
Delta
Deal found 2/10$503
This oojo deal was found by Cheapflights users on 2/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:11 pm
STL
-
LIS
2 stops22h 54m
British Airways
Tue 4/286:45 pm
LIS
-
STL
1 stop30h 45m
British Airways
Deal found 2/10$506
This Delta deal was found by Cheapflights users on 2/10. 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.
Tue 4/1412:45 pm
STL
-
LIS
1 stop13h 15m
Delta
Tue 4/2110:00 am
LIS
-
STL
1 stop15h 26m
Delta
Deal found 2/10$508
This oojo deal was found by Cheapflights users on 2/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:55 pm
STL
-
LIS
2 stops22h 15m
British Airways
Fri 5/17:20 am
LIS
-
STL
2 stops20h 57m
British Airways
Deal found 2/10$509
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:30 am
STL
-
LIS
2 stops18h 50m
United Airlines
Fri 5/81:00 pm
LIS
-
STL
1 stop29h 06m
United Airlines
Deal found 2/10$510
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:45 am
STL
-
LIS
2 stops20h 45m
United Airlines
Fri 5/81:00 pm
LIS
-
STL
1 stop29h 06m
United Airlines
Deal found 2/10$511
This Delta deal was found by Cheapflights users on 2/10. 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.
Mon 4/135:27 pm
STL
-
LIS
1 stop32h 33m
Delta
Wed 4/2210:00 am
LIS
-
STL
1 stop15h 26m
Delta
Deal found 2/10$513
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:18 pm
STL
-
LIS
2 stops18h 17m
Delta
Tue 11/105:30 am
LIS
-
STL
2 stops17h 36m
Delta
Deal found 2/9$514

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$500
(United Airlines)

One-way from

$342
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$707
Provider with most accurate pricing for Lambert-St Louis-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Lisbon Humberto Delgado flights.
Search Deals
From Lambert-St Louis to Lisbon Humberto Delgado
Search Deals
One-way flight from Lambert-St Louis to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($288 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease ($148 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 11, 2026.
Use the filters below to find and compare flights from St. Louis to Lisbon that are best for you.

Fly from

St. Louis

Fly to

Lisbon

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

9:10 am-10:30 am

2 stops19h 20m

Lisbon Humberto Delgado

Sun 5/10

7:25 am-9:08 pm

2 stops19h 43m

$500

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/21

8:30 am-9:20 am

2 stops18h 50m

Lisbon Humberto Delgado

Fri 5/8

1:00 pm-12:06 pm

1 stop29h 06m

$510

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

7:45 am-10:30 am

2 stops20h 45m

Lisbon Humberto Delgado

Fri 5/8

1:00 pm-12:06 pm

1 stop29h 06m

$511

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/14

12:45 pm-8:00 am

1 stop13h 15m

Lisbon Humberto Delgado

Tue 4/21

12:45 pm-8:30 am

2 stops25h 45m

$512

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/13

5:27 pm-8:00 am

1 stop32h 33m

Lisbon Humberto Delgado

Wed 4/22

10:00 am-7:26 pm

1 stop15h 26m

$513

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

10:00 am-10:30 am

2 stops18h 30m

Lisbon Humberto Delgado

Fri 5/1

1:00 pm-12:06 pm

1 stop29h 06m

$516

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/13

5:27 pm-8:00 am

1 stop32h 33m

Lisbon Humberto Delgado

Tue 4/21

10:00 am-8:42 pm

2 stops16h 42m

$518

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

12:45 pm-8:00 am

1 stop13h 15m

Lisbon Humberto Delgado

Sat 5/9

5:00 am-11:21 pm

2 stops24h 21m

$547

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/21

6:25 am-10:45 am

2 stops22h 20m

Lisbon Humberto Delgado

Sat 5/9

5:00 am-11:59 pm

2 stops24h 59m

$552

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/5

8:30 am-10:30 am

1 stop20h 00m

Lisbon Humberto Delgado

Wed 4/15

5:05 am-1:25 pm

1 stop14h 20m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 22 results
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 February.
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 February 6, 2026.

To ensure you get the cheapest price possible for a flight from St. Louis to Lisbon, you should look to book at least 78 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 $1,015). 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.

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 February 11, 2026.
Read through reviews of airlines operating flights from St. Louis to Lisbon, such as United Airlines, American Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,274 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,266 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Canada
7.1
Good
10,707 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Iberia
7.0
Good
3,112 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,777 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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?

    United Airlines and Delta can get you from St. Louis to Lisbon in just under 13h 15m. Your travel time can differ by up to 6h 05m. 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 Iberia and Lufthansa - these airlines can fly you to your destination from $571 and $606, respectively. Users have found that American Airlines is 52% cheaper than the other options available to this destination.

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

    $352 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and American Airlines, with prices starting from $384 and $396, 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 $1,015). 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
Oeiras
Ericeira
Beja
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
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St. Louis to Lajes flights

Top 6 airlines flying from St. Louis to Lisbon

Discover the top 6 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$505Average$1,180FlexibilityNo cancel feeOn-time71%
IberiaCheapest$571Average$781FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$606Average$820FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$622Average$988FlexibilityNo cancel feeOn-time69%
DeltaCheapest$653Average$884FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$721Average$1,072FlexibilityNo cancel feeOn-time67%

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