What is the cheapest airline that flies from Lambert-St Louis to Lisbon Humberto Delgado?

British Airways, Iberia, and United Airlines are the most popular carriers operating from Lambert-St Louis to Lisbon Humberto Delgado

Which airport is the most popular layover for flights between St. Louis and Lisbon?

Philadelphia (PHL) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from St. Louis to Lisbon?

Flights connecting via London (LHR) have the shortest average one-way travel time: 12h 20m.

Which layover airport has the shortest connection time from St. Louis to Lisbon?

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 48m.

What airlines fly to Lisbon?

United Airlines, Air Canada and American Airlines are the top three most popular airlines that fly to Lisbon from St. Louis according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 6 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from St. Louis to Lisbon?

Flights via Toronto (YYZ) offer the lowest average round-trip price of $1,103.

When did momondo last update prices for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?

Prices for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?

There are 6 operators available for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport as of November 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$363 Cheap Flights from St. Louis to Lisbon in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:05 pm - 9:20 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

11h 15m1 stop Toronto Pearson Intl

5:00 am - 1:45 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

14h 45m1 stop Frankfurt am Main

$731Multiple Airlines

Mon, Dec 7 - Wed, Dec 23

10:06 am - 9:00 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

16h 54m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

11:15 am - 8:43 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

39h 28m2 stops Boston Logan Intl Detroit Metropolitan Wayne County

$736Virgin Atlantic

Mon, Dec 7 - Wed, Dec 23

10:50 am - 6:55 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

14h 05m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

8:55 am - 2:19 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

35h 24m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$768Air Canada

Wed, Dec 9 - Thu, Dec 24

4:05 pm - 8:55 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

10h 50m1 stop Toronto Pearson Intl

8:55 am - 2:19 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

35h 24m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$768Air Canada

Wed, Dec 9 - Thu, Dec 24

11:00 am - 8:10 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

15h 10m1 stop Newark

10:15 am - 10:59 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

18h 44m1 stop Newark

$784United Airlines

Wed, Dec 9 - Thu, Dec 24

1:17 pm - 10:20 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

15h 03m1 stop Washington, D.C. Dulles Intl

10:15 am - 10:59 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

18h 44m1 stop Newark

$784United Airlines

Wed, Dec 9 - Fri, Dec 25

11:00 am - 1:30 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

20h 30m2 stops Newark Munich Franz Josef Strauss

5:00 am - 1:45 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

14h 45m1 stop Frankfurt am Main

$818Lufthansa

Fri, Jan 29 - Wed, Feb 3

11:00 am - 1:30 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

20h 30m2 stops Newark Munich Franz Josef Strauss

5:00 am - 9:49 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

22h 49m2 stops Frankfurt am Main Newark

$822Lufthansa

Fri, Jan 29 - Wed, Feb 3

11:15 am - 3:10 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

21h 55m2 stops Minneapolis St Paul Paris Charles de Gaulle

5:00 am - 10:48 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

23h 48m2 stops Amsterdam Schiphol Minneapolis St Paul

$826Delta

Thu, Dec 24 - Fri, Jan 15

6:00 am - 10:30 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

22h 30m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

5:00 am - 8:54 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

21h 54m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$831Delta

Thu, Dec 24 - Wed, Jan 13

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Air Canada flights from St. Louis to Lisbon

Our best Air Canada deals on St. Louis to Lisbon flight tickets

Air Canada

Feb 22

STL1:08 pmLambert-St Louis

15h 32m

2 stops

LIS10:40 amLisbon Humberto Delgado

Feb 26

LIS10:55 amLisbon Humberto Delgado

40h 28m

2 stops

STL9:23 pmLambert-St Louis

$797

Air Canada

Mar 13

STL4:05 pmLambert-St Louis

32h 50m

2 stops

LIS6:55 amLisbon Humberto Delgado

Mar 18

LIS8:55 amLisbon Humberto Delgado

41h 18m

2 stops

STL9:13 pmLambert-St Louis

$800

Air Canada

Mar 15

STL4:05 pmLambert-St Louis

12h 15m

1 stop

LIS9:20 amLisbon Humberto Delgado

Mar 17

LIS11:20 amLisbon Humberto Delgado

38h 53m

2 stops

STL9:13 pmLambert-St Louis

$802

Delta flights from St. Louis to Lisbon

Our best Delta deals on St. Louis to Lisbon flight tickets

Delta

Dec 24

STL11:15 amLambert-St Louis

21h 55m

2 stops

LIS3:10 pmLisbon Humberto Delgado

Jan 15

LIS5:00 amLisbon Humberto Delgado

23h 48m

2 stops

STL10:48 pmLambert-St Louis

$826

Delta

Dec 24

STL6:00 amLambert-St Louis

22h 30m

2 stops

LIS10:30 amLisbon Humberto Delgado

Jan 13

LIS5:00 amLisbon Humberto Delgado

21h 54m

2 stops

STL8:54 pmLambert-St Louis

$831

Delta

Dec 24

STL6:00 amLambert-St Louis

22h 30m

2 stops

LIS10:30 amLisbon Humberto Delgado

Jan 13

LIS10:00 amLisbon Humberto Delgado

16h 54m

1 stop

STL8:54 pmLambert-St Louis

$842

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Mon 12/7

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Wed 12/23

5:00 am-1:45 pm

1 stop14h 45m

$731

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Mon 12/7

10:06 am-9:00 am

2 stops16h 54m

Lisbon Humberto Delgado

Wed 12/23

11:15 am-8:43 pm

2 stops39h 28m

$736

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 12/9

10:50 am-6:55 am

2 stops14h 05m

Lisbon Humberto Delgado

Thu 12/24

8:55 am-2:19 pm

2 stops35h 24m

$768

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 12/9

4:05 pm-8:55 am

1 stop10h 50m

Lisbon Humberto Delgado

Thu 12/24

8:55 am-2:19 pm

2 stops35h 24m

$768

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 12/9

11:00 am-8:10 am

1 stop15h 10m

Lisbon Humberto Delgado

Thu 12/24

10:15 am-10:59 pm

1 stop18h 44m

$784

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 12/9

1:17 pm-10:20 am

1 stop15h 03m

Lisbon Humberto Delgado

Fri 12/25

10:15 am-10:59 pm

1 stop18h 44m

$784

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Fri 1/29

11:00 am-1:30 pm

2 stops20h 30m

Lisbon Humberto Delgado

Wed 2/3

5:00 am-1:45 pm

1 stop14h 45m

$818

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Fri 1/29

11:00 am-1:30 pm

2 stops20h 30m

Lisbon Humberto Delgado

Wed 2/3

5:00 am-9:49 pm

2 stops22h 49m

$822

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Thu 12/24

11:15 am-3:10 pm

2 stops21h 55m

Lisbon Humberto Delgado

Fri 1/15

5:00 am-10:48 pm

2 stops23h 48m

$826

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Thu 12/24

6:00 am-10:30 am

2 stops22h 30m

Lisbon Humberto Delgado

Wed 1/13

5:00 am-8:54 pm

2 stops21h 54m

$831

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between St. Louis and Lisbon?

Prices are currently low for flights on this route.

Typical prices usually range from $800 to $1,068.
The lowest price recently found on this route was $731.

What is the cheapest month to fly to Lisbon?

In general, April is the cheapest month to fly from St. Louis to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $587. If you are unable to visit Lisbon during the month of April, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $760.

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

You are more likely to see cheaper flights to Lisbon from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $1,142 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from St. Louis for as low as $594 on momondo.

Can stopping save me money on St. Louis to Lisbon flights?

You could potentially save up to 4% on your flight if you consider stops on a St. Louis to Lisbon flight.

When to book flights from St. Louis to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Lisbon (STL to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Lisbon

Best Price Found	$363
Fastest flight time	11h 15m
Direct flights	None

The best one-way flight to Lisbon from St. Louis in the past 72 hours is $363. The best round-trip flight deal from St. Louis to Lisbon found on momondo in the last 72 hours is $731.

The fastest flight from St. Louis to Lisbon takes 11h 15m

There are no direct flights from St. Louis to Lisbon. There are no popular flight routes from St. Louis to Lisbon.

Search flight deals

Frequently asked questions about flying from St. Louis to Lisbon

How far is Lambert-St Louis to Lisbon Humberto Delgado by plane?
The distance between Lambert-St Louis and Lisbon Humberto Delgado is about 4210.2 mi. A reasonable flight in good conditions will take 11h 15m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?
There are 6 operators available for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport as of November 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Lisbon?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Lisbon is United Airlines (38% of total bookings). The next most popular airlines are Air Canada (23%), American Airlines (13%), and British Airways (10%).

Best airlines flying from St. Louis to Lisbon

Compare and see reviews for airlines that fly from St. Louis to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $502	Free Cancellation	Rating 7.0 12,228 reviews	Search American Airlines flights
Delta	PriceFrom $558	Free Cancellation	Rating 7.8 8,698 reviews	Search Delta flights
British Airways	PriceFrom $574	Free Cancellation	Rating 6.7 8,285 reviews	Search British Airways flights
Lufthansa	PriceFrom $606	Free Cancellation	Rating 6.8 8,297 reviews	Search Lufthansa flights
Air Canada	PriceFrom $649	Free Cancellation	Rating 7.1 11,875 reviews	Search Air Canada flights
United Airlines	PriceFrom $707	Free Cancellation	Rating 7.3 10,469 reviews	Search United Airlines flights

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Costa da Caparica

Caldas da Rainha

Comporta

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Peniche

Tomar

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Lisbon?

It is quick and easy to find St. Louis to Lisbon flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Lisbon that suits you.

Can I find flights from St. Louis to Lisbon with flexible booking policies on momondo?

momondo does allow users to show only those flights to Lisbon from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Lisbon?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Lisbon from St. Louis.

I’m not ready to book a flight from St. Louis to Lisbon right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Lisbon from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from St. Louis to Lisbon from $363

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Lisbon departing on 3/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from St. Louis to Lisbon

Our best Air Canada deals on St. Louis to Lisbon flight tickets

Delta flights from St. Louis to Lisbon

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How to get the cheapest flight ticket from St. Louis to Lisbon

What is the typical price of a round-trip flight between St. Louis and Lisbon?

What is the cheapest month to fly to Lisbon?

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

Can stopping save me money on St. Louis to Lisbon flights?

What is the cheapest airline that flies from Lambert-St Louis to Lisbon Humberto Delgado?

What airlines fly to Lisbon?

Which airport is the most popular layover for flights between St. Louis and Lisbon?

Which layover airport offers the lowest fares from St. Louis to Lisbon?

Which layover airport has the shortest travel time from St. Louis to Lisbon?

Which layover airport has the shortest connection time from St. Louis to Lisbon?

When to book flights from St. Louis to Lisbon

Cheap St. Louis to Lisbon (STL to LIS) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Lisbon

Best airlines flying from St. Louis to Lisbon

Compare and see reviews for airlines that fly from St. Louis to Lisbon with momondo

Traveling to a place near Lisbon?

Why use momondo?

An easier way to manage your Lisbon trip

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Find better results for your trip to Portugal

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List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

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