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

British Airways, Aer Lingus, and KLM are the most popular carriers operating from Lambert-St Louis to Lisbon Humberto Delgado

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

Flights via New York (JFK) offer the lowest average round-trip price of $605.

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

New York (JFK) has the shortest average layover time for this route: 1h 21m.

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

Toronto (YYZ) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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 40% 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 has the shortest travel time from St. Louis to Lisbon?

Flights connecting via New York (JFK) have the shortest average one-way travel time: 10h 30m.

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 January 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.

$245 Cheap Flights from St. Louis to Lisbon in 2026

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Find the cheapest flights from St. Louis to Lisbon

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:29 pm - 5:45 pm

STL

LIS

21h 16m

2 stops

5:10 pm - 7:30 pm

LIS

STL

32h 20m

1 stop

$442British Airways

Sun, Apr 19 - Mon, Apr 27

2:54 pm - 12:05 pm

STL

LIS

15h 11m

2 stops

6:30 am - 6:16 pm

LIS

STL

17h 46m

2 stops

$444Multiple Airlines

Sun, Jan 25 - Tue, Feb 10

12:11 pm - 5:45 pm

STL

LIS

23h 34m

2 stops

6:45 pm - 10:14 pm

LIS

STL

33h 29m

2 stops

$445British Airways

Sun, Apr 19 - Mon, Apr 27

9:45 am - 8:00 am

STL

LIS

16h 15m

1 stop

10:00 am - 8:43 pm

LIS

STL

16h 43m

2 stops

$448Delta

Sun, Jan 25 - Tue, Feb 10

1:29 pm - 12:55 pm

STL

LIS

17h 26m

2 stops

6:45 pm - 7:30 pm

LIS

STL

30h 45m

1 stop

$455British Airways

Mon, Apr 13 - Mon, Apr 20

9:37 am - 2:55 pm

STL

LIS

24h 18m

2 stops

7:05 am - 11:02 pm

LIS

STL

20h 57m

2 stops

$458British Airways

Mon, Mar 9 - Tue, Mar 24

2:00 pm - 12:10 pm

STL

LIS

17h 10m

2 stops

6:35 pm - 11:04 pm

LIS

STL

33h 29m

2 stops

$470British Airways

Thu, Mar 19 - Mon, Mar 23

4:05 pm - 9:20 am

STL

LIS

35h 15m

2 stops

5:05 am - 9:04 pm

LIS

STL

21h 59m

2 stops

$473Multiple Airlines

Sun, Apr 26 - Wed, May 6

4:05 pm - 3:05 pm

STL

LIS

17h 00m

2 stops

5:00 am - 1:55 pm

LIS

STL

14h 55m

1 stop

$485Multiple Airlines

Sun, Mar 1 - Sun, Mar 8

4:05 pm - 1:20 pm

STL

LIS

16h 15m

2 stops

7:25 am - 1:25 pm

LIS

STL

36h 00m

1 stop

$487Multiple Airlines

Mon, Mar 23 - Tue, Mar 31

Delta flights from St. Louis to Lisbon

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

Delta

Jan 25

STL9:45 amLambert-St Louis

16h 15m

1 stop

LIS8:00 amLisbon Humberto Delgado

Feb 10

LIS10:00 amLisbon Humberto Delgado

16h 43m

2 stops

STL8:43 pmLambert-St Louis

$448

Delta

Apr 20

STL5:59 pmLambert-St Louis

17h 51m

2 stops

LIS5:50 pmLisbon Humberto Delgado

Apr 24

LIS5:00 amLisbon Humberto Delgado

24h 12m

2 stops

STL11:12 pmLambert-St Louis

$573

Delta

Jan 19

STL7:10 amLambert-St Louis

18h 50m

2 stops

LIS8:00 amLisbon Humberto Delgado

Jan 24

LIS5:00 amLisbon Humberto Delgado

20h 27m

2 stops

STL7:27 pmLambert-St Louis

$1,059

British Airways flights from St. Louis to Lisbon

Our best British Airways deals on St. Louis to Lisbon flight tickets

British Airways

Apr 13

STL1:29 pmLambert-St Louis

17h 26m

2 stops

LIS12:55 pmLisbon Humberto Delgado

Apr 20

LIS6:45 pmLisbon Humberto Delgado

30h 45m

1 stop

STL7:30 pmLambert-St Louis

$455

British Airways

Mar 9

STL9:37 amLambert-St Louis

24h 18m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Mar 24

LIS7:05 amLisbon Humberto Delgado

20h 57m

2 stops

STL11:02 pmLambert-St Louis

$458

British Airways

Feb 28

STL10:43 amLambert-St Louis

19h 27m

2 stops

LIS12:10 pmLisbon Humberto Delgado

Mar 7

LIS6:40 pmLisbon Humberto Delgado

34h 08m

2 stops

STL10:48 pmLambert-St Louis

$495

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/19

2:29 pm-5:45 pm

2 stops21h 16m

Lisbon Humberto Delgado

Mon 4/27

5:10 pm-7:30 pm

1 stop32h 20m

$442

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/25

2:54 pm-12:05 pm

2 stops15h 11m

Lisbon Humberto Delgado

Tue 2/10

6:30 am-6:16 pm

2 stops17h 46m

$444

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/19

12:11 pm-5:45 pm

2 stops23h 34m

Lisbon Humberto Delgado

Mon 4/27

6:45 pm-10:14 pm

2 stops33h 29m

$445

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/25

9:45 am-8:00 am

1 stop16h 15m

Lisbon Humberto Delgado

Tue 2/10

10:00 am-8:43 pm

2 stops16h 43m

$448

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/13

1:29 pm-12:55 pm

2 stops17h 26m

Lisbon Humberto Delgado

Mon 4/20

6:45 pm-7:30 pm

1 stop30h 45m

$455

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 3/9

9:37 am-2:55 pm

2 stops24h 18m

Lisbon Humberto Delgado

Tue 3/24

7:05 am-11:02 pm

2 stops20h 57m

$458

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 3/19

2:00 pm-12:10 pm

2 stops17h 10m

Lisbon Humberto Delgado

Mon 3/23

6:35 pm-11:04 pm

2 stops33h 29m

$470

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/26

4:05 pm-9:20 am

2 stops35h 15m

Lisbon Humberto Delgado

Wed 5/6

5:05 am-9:04 pm

2 stops21h 59m

$473

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 3/1

4:05 pm-3:05 pm

2 stops17h 00m

Lisbon Humberto Delgado

Sun 3/8

5:00 am-1:55 pm

1 stop14h 55m

$485

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 3/23

4:05 pm-1:20 pm

2 stops16h 15m

Lisbon Humberto Delgado

Tue 3/31

7:25 am-1:25 pm

1 stop36h 00m

$487

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 cheapest month to fly to Lisbon?

In general, January 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 $622. If you are unable to visit Lisbon during the month of January, then departing from St. Louis during the month November is also very affordable. Most momondo users find prices during this month for around $764.

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from St. Louis when booking week ahead of your departure date. In general, you can expect to find flights to Lisbon for around $1,080 when searching week 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 $780 on momondo.

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

You could potentially save up to 37% 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

Fastest flight time	11h 15m
Direct flights	None

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

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 January 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 (36% of total bookings). The next most popular airlines are Air Canada (34%), American Airlines (15%), and Lufthansa (6%).

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 $505	Free Cancellation	Rating 7.2 11,140 reviews	Search American Airlines flights
United Airlines	PriceFrom $617	Free Cancellation	Rating 7.4 9,163 reviews	Search United Airlines flights
Lufthansa	PriceFrom $626	Free Cancellation	Rating 6.8 7,718 reviews	Search Lufthansa flights
Iberia	PriceFrom $649	Free Cancellation	Rating 7.0 3,087 reviews	Search Iberia flights
Delta	PriceFrom $718	Free Cancellation	Rating 7.9 8,056 reviews	Search Delta flights
Air Canada	PriceFrom $741	Free Cancellation	Rating 7.1 10,625 reviews	Search Air Canada flights

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Estoril

Peniche

Leiria

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Tomar

Figueira da Foz

Zambujeira do Mar

Batalha

Óbidos

Comporta

Torres Vedras

Sines

Almada

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.

An easier way to manage your Lisbon trip

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Cheap flights from St. Louis to Lisbon from $245

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 5/5. 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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Delta flights from St. Louis to Lisbon

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

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Our best British Airways deals on St. Louis to Lisbon flight tickets

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See travel insights to Lisbon from

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

What is the cheapest month to fly to Lisbon?

How far in advance should I book a flight to Lisbon?

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

You could potentially save up to 37% on your flight if you consider stops on a St. Louis to Lisbon flight.

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

British Airways, Aer Lingus, and KLM are the most popular carriers operating 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?

Toronto (YYZ) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via New York (JFK) offer the lowest average round-trip price of $605.

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

Flights connecting via New York (JFK) have the shortest average one-way travel time: 10h 30m.

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

New York (JFK) has the shortest average layover time for this route: 1h 21m.

When to book flights from St. Louis to Lisbon

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

Fastest flight time

Direct flights

How far is Lambert-St Louis to Lisbon Humberto Delgado by plane?

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

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

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

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

What is the most popular airline 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?

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

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

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

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

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal