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

Currently priced at $1,073, British Airways will fly you from St. Louis to Lisbon and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from $1,154 and $1,161, respectively.

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

$603 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 Finnair, with prices starting from $610 and $812, respectively.

What is the cheapest day to fly from St. Louis to Lisbon?

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

What are the most popular airlines that fly from St. Louis to Lisbon?

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

What is the cheapest day to fly round-trip from St. Louis to Lisbon?

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 21% when planning your travel around this day of the week.

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

To save on the cost of your flight from St. Louis to Lisbon, book at least 28 days before your planned departure. Booking around this time can save you about 111% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $789 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,737.

What is the cheapest month to fly from St. Louis to Lisbon?

Our data shows that November tends to be the cheapest month to fly to Lisbon from St. Louis. Users have commonly found prices around $972 for the month, but tickets can be as low as $566. Due to multiple factors, prepare for potentially higher prices in June.

Most accurate provider : When it comes to deals on St. Louis-Lisbon flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Lisbon flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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.

$398+ Flights from St. Louis to Lisbon

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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”

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Cheapflights Tip: The best prices from Lambert-St Louis to Lisbon Humberto Delgado are usually found in November or February, booked 67 days in advance, depart on a Monday or Sunday and return on a Monday

Cheap flight deals from St. Louis to Lisbon

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,073 (British Airways)
One-way from	$398 (Kiwi.com)
Popular in	June
Cheapest in	November
Average price	$905

Provider with most accurate pricing for Lambert-St Louis-Lisbon Humberto Delgado flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Lisbon Humberto Delgado flights.

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From Lambert-St Louis to Lisbon Humberto Delgado

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One-way flight from Lambert-St Louis to Lisbon Humberto Delgado

Search Deals

Highest demand for flights based on searches. 25% potential increase in price ($333 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Find 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 April 15, 2025.

Mon 11/241:00 pmSTL - LIS

1 stop15h 15mUnited Airlines

Tue 12/211:00 amLIS - STL

2 stops33h 18mUnited Airlines

Deal found 4/14

$571

Mon 11/244:15 pmSTL - LIS

2 stops35h 05mAir Canada

Tue 12/211:00 amLIS - STL

2 stops33h 18mAir Canada

Deal found 4/13

$573

Mon 11/248:25 amSTL - LIS

1 stop19h 50mMultiple Airlines

Tue 12/23:55 pmLIS - STL

1 stop28h 00mMultiple Airlines

Deal found 4/14

$609

Fri 8/221:30 pmSTL - LIS

2 stops25h 10mScandinavian Airlines

Fri 8/296:25 pmLIS - STL

2 stops35h 14mScandinavian Airlines

Deal found 4/15

$873

Mon 8/251:22 pmSTL - LIS

2 stops22h 33mBritish Airways

Mon 9/18:45 pmLIS - STL

2 stops33h 04mBritish Airways

Deal found 4/13

$995

Thu 8/72:39 pmSTL - LIS

1 stop12h 26mIberia

Thu 8/146:35 amLIS - STL

2 stops23h 14mIberia

Deal found 4/14

$1,024

Sat 8/3011:19 amSTL - LIS

1 stop15h 01mLufthansa

Sun 9/215:05 amLIS - STL

1 stop14h 25mLufthansa

Deal found 4/14

$1,124

Wed 5/1410:45 amSTL - LIS

2 stops21h 50mDelta

Sun 5/255:00 amLIS - STL

2 stops17h 35mDelta

Deal found 4/15

$1,202

Fri 7/46:20 amSTL - LIS

1 stop20h 45mAmerican Airlines

Sat 7/1211:05 amLIS - STL

2 stops15h 18mAmerican Airlines

Deal found 4/15

$1,233

Best flights from St. Louis to Lisbon
Discover carefully curated flight deals from St. Louis to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2025.

Tue 5/137:30 pmSTL - LIS

2 stops16h 25mBritish Airways

Sun 5/2511:05 amLIS - STL

1 stop15h 53mBritish Airways

Deal found 4/15

$1,073

Tue 5/131:30 pmSTL - LIS

2 stops15h 55mMultiple Airlines

Sun 5/2511:25 amLIS - STL

2 stops31h 11mMultiple Airlines

Deal found 4/15

$1,086

Tue 5/131:30 pmSTL - LIS

1 stop13h 50mAir Canada

Sun 5/2511:25 amLIS - STL

1 stop14h 33mAir Canada

Deal found 4/15

$1,154

Sun 6/88:10 amSTL - LIS

2 stops19h 10mUnited Airlines

Fri 6/2011:25 amLIS - STL

2 stops29h 20mUnited Airlines

Deal found 4/15

$1,161

Wed 5/1410:45 amSTL - LIS

2 stops21h 50mDelta

Sun 5/255:00 amLIS - STL

2 stops17h 35mDelta

Deal found 4/15

$1,202

Fri 7/46:20 amSTL - LIS

1 stop20h 45mAmerican Airlines

Sat 7/1211:05 amLIS - STL

2 stops15h 18mAmerican Airlines

Deal found 4/15

$1,233

Fri 6/275:30 pmSTL - LIS

2 stops22h 20mLufthansa

Mon 7/75:05 amLIS - STL

2 stops16h 42mLufthansa

Deal found 4/15

$1,455

Mon 7/1410:00 amSTL - LIS

2 stops19h 50mIberia

Sun 7/208:45 pmLIS - STL

2 stops29h 38mIberia

Deal found 4/15

$3,774

Last-minute flights from St. Louis to Lisbon
Discover last-minute flight deals from St. Louis to Lisbon. Data last updated April 15, 2025 and is based on user searches.

Tue 5/69:40 amSTL - LIS

2 stops16h 40mUnited Airlines

Tue 5/1311:25 amLIS - STL

2 stops33h 22mUnited Airlines

Deal found 4/14

$795

Thu 5/81:30 pmSTL - LIS

2 stops18h 05mAir Canada

Thu 5/227:30 amLIS - STL

2 stops18h 28mAir Canada

Deal found 4/14

$874

Tue 5/137:30 pmSTL - LIS

2 stops16h 25mBritish Airways

Sun 5/2511:05 amLIS - STL

1 stop15h 53mBritish Airways

Deal found 4/14

$1,073

Wed 5/145:45 pmSTL - LIS

2 stops15h 05mMultiple Airlines

Mon 5/195:00 amLIS - STL

2 stops17h 35mMultiple Airlines

Deal found 4/14

$919

Wed 5/1410:45 amSTL - LIS

2 stops21h 50mDelta

Sun 5/255:00 amLIS - STL

2 stops17h 35mDelta

Deal found 4/15

$1,202

One-way flights from St. Louis to Lisbon
Search for one-way flight options from St. Louis to Lisbon. Find affordable one-way fares based on user searches. Data last updated April 15, 2025.

Tue 5/65:45 pmSTL - LIS

3 stops55h 15mMultiple Airlines

Deal found 4/15

$398

Tue 5/61:30 pmSTL - LIS

1 stop13h 50mUnited Airlines

Deal found 4/15

$603

Wed 5/217:30 amSTL - LIS

2 stops19h 50mAir Canada

Deal found 4/14

$610

Mon 6/94:23 pmSTL - LIS

2 stops24h 47mFinnair

Deal found 4/15

$812

Tue 5/61:38 pmSTL - LIS

2 stops18h 47mBritish Airways

Deal found 4/15

$2,056

Tue 5/61:45 pmSTL - LIS

1 stop13h 20mIberia

Deal found 4/15

$4,507

Cheapflights Fare Finder

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

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 9/30

1:30 pm-9:20 am

1 stop13h 50m

Lisbon Humberto Delgado

Fri 10/10

11:25 am-2:19 pm

2 stops32h 54m

$786

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 5/6

9:40 am-8:20 am

2 stops16h 40m

Lisbon Humberto Delgado

Tue 5/13

11:25 am-2:47 pm

2 stops33h 22m

$795

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 9/30

1:30 pm-9:20 am

1 stop13h 50m

Lisbon Humberto Delgado

Fri 10/10

11:25 am-7:57 pm

1 stop14h 32m

$797

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 8/22

1:30 pm-8:40 pm

2 stops25h 10m

Lisbon Humberto Delgado

Fri 8/29

6:25 pm-11:39 pm

2 stops35h 14m

$873

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 8/25

1:22 pm-5:55 pm

2 stops22h 33m

Lisbon Humberto Delgado

Mon 9/1

8:45 pm-11:49 pm

2 stops33h 04m

$995

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 8/7

2:39 pm-9:05 am

1 stop12h 26m

Lisbon Humberto Delgado

Thu 8/14

6:35 am-11:49 pm

2 stops23h 14m

$1,024

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 8/30

11:19 am-8:20 am

1 stop15h 01m

Lisbon Humberto Delgado

Sun 9/21

5:05 am-1:30 pm

1 stop14h 25m

$1,124

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 5/14

10:45 am-2:35 pm

2 stops21h 50m

Lisbon Humberto Delgado

Sun 5/25

5:00 am-4:35 pm

2 stops17h 35m

$1,202

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 7/4

6:20 am-9:05 am

1 stop20h 45m

Lisbon Humberto Delgado

Sat 7/12

11:05 am-8:23 pm

2 stops15h 18m

$1,233

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 7/15

7:23 am-9:35 pm

2 stops32h 12m

Lisbon Humberto Delgado

Sat 7/19

10:15 pm-8:23 pm

2 stops28h 08m

$1,509

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 15 results

Compare providers for flights from St. Louis to Lisbon

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Lisbon flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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?

To ensure you get the cheapest price possible for a flight from St. Louis to Lisbon, you should look to book at least 67 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, January is the cheapest month in which you can book a flight from St. Louis to Lisbon (average of $612). Flying from St. Louis to Lisbon in June is currently the most expensive (average of $1,203). 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 STL to LIS?

A simple way to save on the total cost of your ticket is to fly from St. Louis to Lisbon at noon. If you’re flexible enough to do this you can expect to save up to 19% on your trip compared to booking a flight in the afternoon.

Rainfall in Lisbon by month

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.

Temperature in Lisbon by month

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).

Reviews of airlines servicing Lisbon

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,918 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,658 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

9,127 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from St. Louis to Lisbon round-trip?
Currently priced at $1,073, British Airways will fly you from St. Louis to Lisbon and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from $1,154 and $1,161, respectively.
What are the cheapest airlines to fly from St. Louis to Lisbon one-way?
$603 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 Finnair, with prices starting from $610 and $812, 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, January is the cheapest month in which you can book a flight from St. Louis to Lisbon (average of $612). Flying from St. Louis to Lisbon in June is currently the most expensive (average of $1,203). 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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Other flights to Lisbon

Top 7 airlines flying from St. Louis to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Iberia	Cheapest$566	Average$806	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$600	Average$1,015	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$601	Average$940	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$618	Average$1,121	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$625	Average$925	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$680	Average$1,163	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$779	Average$1,092	FlexibilityNo cancel fee	On-time67%

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$398+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis 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 Lambert-St Louis to Lisbon Humberto Delgado are usually found in November or February, booked 67 days in advance, depart on a Monday or Sunday and return on a Monday

Cheap flight deals from St. Louis to Lisbon

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Lisbon

Cheapest flights from St. Louis to LisbonExplore 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 April 15, 2025.

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 April 15, 2025.

Cheapflights Fare Finder

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

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 April.

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.

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 April 11, 2025.

What is the cheapest month to book a flight from St. Louis to Lisbon?

What is the cheapest time of day to fly from STL to LIS?

Find hourly flight availability from St. Louis 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 April 15, 2025.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

Reviews of airlines servicing Lisbon

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.

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

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

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

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

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

What is the cheapest month to book a flight from St. Louis to Lisbon?

Traveling to a place near St. Louis?

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Alternative routes for St. Louis to Lisbon

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Top 7 airlines flying from St. Louis to Lisbon

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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 April 15, 2025.