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

Currently priced at $568, Iberia will fly you from St. Louis to Lisbon and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $602 and $614, respectively. Users have found that Iberia is 39% cheaper than the other options available to this destination.

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.

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 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 48 days before your planned departure. Booking around this time can save you about 117% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $754 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $2,382.

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 $944 for the month, but tickets can be as low as $567. Due to multiple factors, prepare for potentially higher prices in June.

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.

$383+ Flights from St. Louis to Lisbon

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

Airfare is below average for this route at the moment. St. Louis to Lisbon flights typically cost between $1,015 and $1,364 in November. The cheapest round-trip price found within the last 3 days was $580 on United Airlines (Nov 18-Nov 26).

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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 47 days in advance, depart on a Monday or Sunday and return on a Monday

Cheap flight deals from St. Louis to Lisbon

Round-trip from	$583 (United Airlines)
One-way from	$383 (Kiwi.com)
Popular in	June
Cheapest in	November
Average price	$1,216

From Lambert-St Louis to Lisbon Humberto Delgado

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

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Highest demand for flights based on searches. 19% potential increase in price ($222 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).

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Average for round-trip flights in August 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 agosto 14, 2025.

mié. 12/34:05 pmSTL - LIS

1 stop10h 50mUnited Airlines

dom. 12/75:00 amLIS - STL

1 stop14h 55mUnited Airlines

Deal found 8/13

$601

mié. 12/312:00 pmSTL - LIS

2 stops14h 00mDelta

dom. 12/710:00 amLIS - STL

2 stops16h 35mDelta

Deal found 8/11

$606

jue. 11/206:30 amSTL - LIS

2 stops20h 50mAir Canada

mar. 12/211:20 amLIS - STL

2 stops30h 55mAir Canada

Deal found 8/13

$626

vie. 11/76:00 amSTL - LIS

1 stop19h 55mMultiple Airlines

mar. 11/1111:10 amLIS - STL

1 stop15h 45mMultiple Airlines

Deal found 8/13

$643

mié. 11/193:50 pmSTL - LIS

1 stop17h 00mLufthansa

lun. 11/2410:15 amLIS - STL

1 stop19h 29mLufthansa

Deal found 8/13

$650

jue. 11/206:30 amSTL - LIS

2 stops20h 50mMultiple Airlines

mar. 12/23:55 pmLIS - STL

1 stop28h 00mMultiple Airlines

Deal found 8/13

$651

jue. 10/3010:45 amSTL - LIS

2 stops18h 50mDelta

sáb. 11/810:00 amLIS - STL

1 stop12h 43mDelta

Deal found 8/12

$659

mar. 10/148:04 pmSTL - LIS

2 stops18h 01mIberia

mié. 10/226:35 amLIS - STL

2 stops19h 51mIberia

Deal found 8/14

$680

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 agosto 14, 2025.

sáb. 1/36:35 pmSTL - LIS

2 stops32h 45mUnited Airlines

vie. 1/165:00 amLIS - STL

1 stop14h 55mUnited Airlines

Deal found 8/13

$583

sáb. 1/36:35 pmSTL - LIS

2 stops32h 45mMultiple Airlines

vie. 1/165:00 amLIS - STL

1 stop14h 55mMultiple Airlines

Deal found 8/12

$594

mié. 11/191:43 pmSTL - LIS

2 stops16h 27mBritish Airways

lun. 11/246:45 pmLIS - STL

2 stops30h 44mBritish Airways

Deal found 8/13

$601

mié. 12/312:00 pmSTL - LIS

2 stops14h 00mDelta

dom. 12/710:00 amLIS - STL

1 stop12h 40mDelta

Deal found 8/11

$606

mié. 12/34:05 pmSTL - LIS

1 stop10h 50mUnited Airlines

dom. 12/75:00 amLIS - STL

1 stop14h 55mUnited Airlines

Deal found 8/11

$601

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

jue. 8/216:00 amSTL - LIS

2 stops23h 05mUnited Airlines

lun. 8/2510:00 pmLIS - STL

2 stops42h 02mUnited Airlines

Deal found 8/13

$1,398

jue. 8/211:30 pmSTL - LIS

1 stop13h 50mMultiple Airlines

lun. 8/256:15 pmLIS - STL

2 stops27h 29mMultiple Airlines

Deal found 8/13

$1,414

mar. 9/164:10 pmSTL - LIS

1 stop33h 50mDelta

mié. 9/2410:00 amLIS - STL

1 stop12h 48mDelta

Deal found 8/13

$749

mar. 9/238:15 amSTL - LIS

2 stops19h 05mUnited Airlines

mar. 9/3011:25 amLIS - STL

2 stops34h 42mUnited Airlines

Deal found 8/13

$733

mié. 9/244:10 pmSTL - LIS

2 stops16h 40mDelta

mié. 10/110:00 amLIS - STL

1 stop12h 48mDelta

Deal found 8/13

$738

dom. 9/281:30 pmSTL - LIS

1 stop13h 50mUnited Airlines

vie. 10/105:05 amLIS - STL

1 stop14h 25mUnited Airlines

Deal found 8/12

$729

dom. 9/285:00 amSTL - LIS

2 stops22h 20mAir Canada

mié. 10/86:45 amLIS - STL

2 stops19h 12mAir Canada

Deal found 8/12

$739

dom. 9/286:30 amSTL - LIS

2 stops20h 50mUnited Airlines

mar. 10/75:05 amLIS - STL

2 stops16h 39mUnited Airlines

Deal found 8/12

$744

lun. 9/2911:04 amSTL - LIS

2 stops14h 56mDelta

mié. 10/810:00 amLIS - STL

1 stop12h 43mDelta

Deal found 8/12

$723

lun. 9/291:30 pmSTL - LIS

1 stop13h 50mUnited Airlines

mar. 10/75:05 amLIS - STL

2 stops16h 39mUnited Airlines

Deal found 8/12

$745

mar. 9/302:15 pmSTL - LIS

2 stops14h 30mAir France

mar. 10/75:40 amLIS - STL

2 stops17h 03mAir France

Deal found 8/12

$735

mar. 9/304:05 pmSTL - LIS

1 stop13h 00mMultiple Airlines

mié. 10/85:05 amLIS - STL

1 stop14h 25mMultiple Airlines

Deal found 8/12

$746

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 agosto 14, 2025.

mié. 10/157:52 pmSTL - LIS

3 stops32h 58mMultiple Airlines

Deal found 8/13

$383

lun. 9/151:57 pmSTL - LIS

2 stops27h 08mMultiple Airlines

Deal found 8/12

$390

mié. 10/153:30 pmSTL - LIS

1 stop17h 55mLufthansa

Deal found 8/13

$394

mié. 10/151:30 pmSTL - LIS

1 stop13h 50mUnited Airlines

Deal found 8/14

$401

mié. 10/155:00 amSTL - LIS

2 stops22h 20mAir Canada

Deal found 8/13

$402

vie. 9/121:57 pmSTL - LIS

3 stops49h 23mMultiple Airlines

Deal found 8/13

$407

lun. 9/151:30 pmSTL - LIS

1 stop13h 50mUnited Airlines

Deal found 8/12

$729

vie. 9/123:30 pmSTL - LIS

1 stop24h 35mLufthansa

Deal found 8/13

$817

mié. 10/154:12 pmSTL - LIS

2 stops17h 28mBritish Airways

Deal found 8/13

$978

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

sáb. 1/3

6:35 pm-9:20 am

2 stops32h 45m

Lisbon Humberto Delgado

vie. 1/16

5:00 am-1:55 pm

1 stop14h 55m

$583

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

sáb. 1/3

6:35 pm-9:20 am

2 stops32h 45m

Lisbon Humberto Delgado

vie. 1/16

5:00 am-1:55 pm

1 stop14h 55m

$594

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mié. 11/19

1:43 pm-12:10 pm

2 stops16h 27m

Lisbon Humberto Delgado

lun. 11/24

6:45 pm-7:29 pm

2 stops30h 44m

$601

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mié. 12/3

4:05 pm-8:55 am

1 stop10h 50m

Lisbon Humberto Delgado

dom. 12/7

5:00 am-1:55 pm

1 stop14h 55m

$601

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mié. 12/3

12:00 pm-8:00 am

2 stops14h 00m

Lisbon Humberto Delgado

dom. 12/7

10:00 am-4:40 pm

1 stop12h 40m

$606

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mié. 10/15

7:52 pm-10:50 am

3 stops32h 58m

$383

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

lun. 9/15

1:57 pm-11:05 pm

2 stops27h 08m

$390

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mié. 10/15

3:30 pm-3:25 pm

1 stop17h 55m

$394

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

dom. 1/4

4:05 pm-9:20 am

1 stop11h 15m

$399

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mié. 10/15

1:30 pm-9:20 am

1 stop13h 50m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 11 results

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 47 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 $1,128). 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.

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

Reviews of airlines servicing Lisbon

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

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,916 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Air Canada

7.1

Good

9,949 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Iberia

7.0

Good

2,878 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

British Airways

6.7

Okay

7,266 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What are the cheapest airlines flying from St. Louis to Lisbon round-trip?
Currently priced at $568, Iberia will fly you from St. Louis to Lisbon and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $602 and $614, respectively. Users have found that Iberia is 39% cheaper than the other options available to this destination.
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 $1,128). 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$568	Average$761	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$602	Average$986	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$614	Average$1,080	FlexibilityNo cancel fee	On-time71%
Lufthansa	Cheapest$630	Average$972	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$642	Average$900	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$652	Average$884	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$823	Average$1,090	FlexibilityNo cancel fee	On-time67%

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$383+ 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 47 days in advance, depart on a Monday or Sunday and return on a Monday

Cheap flight deals from St. Louis to Lisbon

Round-trip from

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Popular in

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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 agosto 14, 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 agosto 14, 2025.

Cheapflights Fare Finder

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

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 August 8, 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 agosto 14, 2025.

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

Reviews of airlines servicing Lisbon

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.

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?

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?

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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 agosto 14, 2025.