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

Currently priced at $523, United Airlines will fly you from St. Louis to Lisbon and back. In addition to United 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 $529 and $539, respectively. Users have found that United Airlines is 45% cheaper than the other options available to this destination.

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

$432 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Lufthansa, with prices starting from $436 and $581, 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 37 days before your planned departure. Booking around this time can save you about 114% 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 $959 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.

$432+ Flights from St. Louis to Lisbon

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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”

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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.

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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	$523 (United Airlines)
One-way from	$432 (Justfly.com)
Popular in	June
Cheapest in	November
Average price	$1,175

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.

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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 ($269 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

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 May 23, 2025.

Mon 10/271:27 pmSTL - LIS

2 stops13h 43mUnited Airlines

Tue 11/1111:00 amLIS - STL

2 stops31h 20mUnited Airlines

Deal found 5/22

$523

Tue 10/282:40 pmSTL - LIS

1 stop13h 35mIberia

Thu 11/66:30 amLIS - STL

2 stops21h 11mIberia

Deal found 5/23

$529

Wed 11/263:50 pmSTL - LIS

1 stop13h 50mMultiple Airlines

Tue 12/211:00 amLIS - STL

2 stops33h 18mMultiple Airlines

Deal found 5/23

$538

Mon 10/271:27 pmSTL - LIS

2 stops28h 23mLufthansa

Tue 11/1112:30 pmLIS - STL

1 stop31h 25mLufthansa

Deal found 5/22

$539

Wed 10/294:52 pmSTL - LIS

2 stops17h 03mBritish Airways

Wed 11/511:15 amLIS - STL

1 stop15h 01mBritish Airways

Deal found 5/23

$544

Wed 11/264:15 pmSTL - LIS

2 stops16h 35mAir Canada

Tue 12/25:00 amLIS - STL

2 stops16h 26mAir Canada

Deal found 5/23

$557

Sat 11/14:40 pmSTL - LIS

1 stop10h 20mDelta

Sat 11/810:00 amLIS - STL

2 stops16h 35mDelta

Deal found 5/23

$636

Thu 10/304:40 pmSTL - LIS

2 stops16h 55mKLM

Thu 11/610:00 amLIS - STL

2 stops19h 39mKLM

Deal found 5/23

$679

Thu 10/304:40 pmSTL - LIS

1 stop10h 20mAir France

Wed 11/510:00 amLIS - STL

2 stops16h 49mAir France

Deal found 5/23

$705

Mon 8/186:00 amSTL - LIS

1 stop21h 05mAmerican Airlines

Mon 8/2511:05 amLIS - STL

1 stop12h 04mAmerican Airlines

Deal found 5/22

$706

Fri 10/311:54 pmSTL - LIS

2 stops39h 01mFinnair

Sat 11/83:55 pmLIS - STL

2 stops32h 22mFinnair

Deal found 5/23

$994

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 May 23, 2025.

Mon 10/271:27 pmSTL - LIS

2 stops13h 43mUnited Airlines

Tue 11/1111:00 amLIS - STL

2 stops31h 20mUnited Airlines

Deal found 5/22

$523

Tue 10/282:40 pmSTL - LIS

1 stop13h 35mIberia

Thu 11/66:30 amLIS - STL

2 stops21h 11mIberia

Deal found 5/23

$529

Mon 10/271:27 pmSTL - LIS

2 stops28h 23mLufthansa

Tue 11/1112:30 pmLIS - STL

1 stop31h 25mLufthansa

Deal found 5/22

$539

Wed 10/294:52 pmSTL - LIS

2 stops17h 03mBritish Airways

Wed 11/511:15 amLIS - STL

1 stop15h 01mBritish Airways

Deal found 5/23

$544

Tue 10/145:30 pmSTL - LIS

2 stops33h 50mAir Canada

Wed 10/2212:50 pmLIS - STL

2 stops31h 29mAir Canada

Deal found 5/22

$623

Tue 10/282:40 pmSTL - LIS

1 stop13h 35mMultiple Airlines

Mon 11/1011:05 amLIS - STL

1 stop15h 11mMultiple Airlines

Deal found 5/22

$629

Sat 11/14:40 pmSTL - LIS

1 stop10h 20mDelta

Sat 11/810:00 amLIS - STL

2 stops16h 35mDelta

Deal found 5/23

$636

Thu 10/304:40 pmSTL - LIS

2 stops16h 55mKLM

Wed 11/510:00 amLIS - STL

2 stops16h 49mKLM

Deal found 5/23

$679

Thu 10/304:40 pmSTL - LIS

1 stop10h 20mAir France

Wed 11/510:00 amLIS - STL

2 stops16h 49mAir France

Deal found 5/23

$705

Mon 8/186:00 amSTL - LIS

1 stop21h 05mAmerican Airlines

Mon 8/2511:05 amLIS - STL

1 stop12h 04mAmerican Airlines

Deal found 5/22

$706

Fri 10/311:54 pmSTL - LIS

2 stops39h 01mFinnair

Sat 11/83:55 pmLIS - STL

2 stops32h 22mFinnair

Deal found 5/23

$994

Last-minute flights from St. Louis to Lisbon
Discover last-minute flight deals from St. Louis to Lisbon. Data last updated May 23, 2025 and is based on user searches.

Wed 5/281:30 pmSTL - LIS

1 stop13h 50mAir Canada

Sat 6/711:25 amLIS - STL

2 stops29h 20mAir Canada

Deal found 5/22

$1,986

Sat 6/73:40 pmSTL - LIS

2 stops35h 40mAir Canada

Fri 6/2012:55 pmLIS - STL

1 stop29h 41mAir Canada

Deal found 5/22

$1,032

Sun 6/81:30 pmSTL - LIS

1 stop13h 50mUnited Airlines

Fri 6/2012:55 pmLIS - STL

2 stops32h 35mUnited Airlines

Deal found 5/22

$1,002

Sun 6/87:30 amSTL - LIS

2 stops21h 55mMultiple Airlines

Thu 6/197:30 amLIS - STL

2 stops21h 15mMultiple Airlines

Deal found 5/22

$1,056

Sun 6/295:30 pmSTL - LIS

2 stops22h 35mLufthansa

Sun 7/65:05 amLIS - STL

2 stops23h 40mLufthansa

Deal found 5/22

$1,148

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 May 23, 2025.

Wed 10/151:30 pmSTL - LIS

1 stop13h 50mAir Canada

Deal found 5/22

$432

Wed 10/158:05 amSTL - LIS

2 stops19h 15mUnited Airlines

Deal found 5/22

$436

Wed 7/21:20 pmSTL - LIS

2 stops20h 05mLufthansa

Deal found 5/23

$581

Wed 10/158:01 pmSTL - LIS

2 stops21h 24mIberia

Deal found 5/22

$973

Mon 7/147:32 pmSTL - LIS

3 stops56h 03mMultiple Airlines

Deal found 5/22

$1,711

Mon 7/141:16 pmSTL - LIS

1 stop13h 49mBritish Airways

Deal found 5/22

$2,390

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

Mon 10/27

1:27 pm-8:10 am

2 stops13h 43m

Lisbon Humberto Delgado

Tue 11/11

11:00 am-12:20 pm

2 stops31h 20m

$523

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 10/28

2:40 pm-9:15 am

1 stop13h 35m

Lisbon Humberto Delgado

Thu 11/6

6:30 am-9:41 pm

2 stops21h 11m

$529

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 10/27

1:27 pm-10:50 pm

2 stops28h 23m

Lisbon Humberto Delgado

Tue 11/11

12:30 pm-1:55 pm

1 stop31h 25m

$539

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 10/29

4:52 pm-2:55 pm

2 stops17h 03m

Lisbon Humberto Delgado

Wed 11/5

11:15 am-8:16 pm

1 stop15h 01m

$544

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 10/14

5:30 pm-9:20 am

2 stops33h 50m

Lisbon Humberto Delgado

Wed 10/22

12:50 pm-2:19 pm

2 stops31h 29m

$623

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 10/28

2:40 pm-9:15 am

1 stop13h 35m

Lisbon Humberto Delgado

Mon 11/10

11:05 am-8:16 pm

1 stop15h 11m

$629

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 11/1

11:51 am-8:00 am

2 stops15h 09m

Lisbon Humberto Delgado

Sat 11/8

10:00 am-8:35 pm

2 stops16h 35m

$636

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 10/30

4:40 pm-2:35 pm

2 stops16h 55m

Lisbon Humberto Delgado

Wed 11/5

10:00 am-8:49 pm

2 stops16h 49m

$679

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 8/18

6:00 am-9:05 am

1 stop21h 05m

Lisbon Humberto Delgado

Mon 8/25

11:05 am-5:09 pm

1 stop12h 04m

$706

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 10/30

4:40 pm-8:00 am

1 stop10h 20m

Lisbon Humberto Delgado

Tue 11/4

5:30 am-4:51 pm

2 stops17h 21m

$720

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/22

Showing 1-10 of 17 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 May.

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 $1,150). 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

7,952 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

7,952 reviews

Delta

8.0

Very good

7,952 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!

KLM

7.8

Good

1,346 reviews

Delta

8.0

Very good

7,952 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

1,282 reviews

Delta

8.0

Very good

7,952 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!

Air France

7.4

Good

1,451 reviews

Delta

8.0

Very good

7,952 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

8,745 reviews

Delta

8.0

Very good

7,952 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 are the cheapest airlines flying from St. Louis to Lisbon round-trip?
Currently priced at $523, United Airlines will fly you from St. Louis to Lisbon and back. In addition to United 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 $529 and $539, respectively. Users have found that United Airlines is 45% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from St. Louis to Lisbon one-way?
$432 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Lufthansa, with prices starting from $436 and $581, 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 $1,150). 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$784	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$600	Average$997	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$601	Average$936	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$618	Average$1,117	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$625	Average$914	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$680	Average$1,060	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$754	Average$1,084	FlexibilityNo cancel fee	On-time67%

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$432+ 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 10/15. 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 May 23, 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 May 23, 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 May.

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 May 16, 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 May 23, 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

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 May 23, 2025.

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 May 23, 2025.