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

Toronto (YYZ) was the most common stop: 53% of momondo users choosing 1-stop flights on this route connected there.

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

Delta and KLM are the most popular carriers operating from Lambert-St Louis to Lisbon Humberto Delgado

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

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 10h 11m.

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.

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 42% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 7 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 connection time from St. Louis to Lisbon?

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

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 7 operators available for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport as of November 2025.

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.

$255 Cheap Flights from St. Louis to Lisbon in 2025/26

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8:30 am - 9:20 amSTL-LIS

18h 50m2 stops

5:00 am - 1:55 pmLIS-STL

14h 55m1 stop

$482United Airlines

Find Deal

Thu, Jan 8 - Wed, Jan 21

8:45 am - 9:20 amSTL-LIS

18h 35m2 stops

11:20 am - 2:30 pmLIS-STL

33h 10m2 stops

$483United Airlines

Find Deal

Thu, Jan 8 - Thu, Jan 15

4:05 pm - 9:20 amSTL-LIS

35h 15m2 stops

11:20 am - 10:59 pmLIS-STL

41h 39m2 stops

$484Air Canada

Find Deal

Mon, Feb 23 - Tue, Mar 3

7:41 am - 10:15 amSTL-LIS

20h 34m2 stops

5:00 am - 1:55 pmLIS-STL

14h 55m1 stop

$487United Airlines

Find Deal

Fri, Feb 20 - Wed, Mar 4

8:30 am - 9:20 amSTL-LIS

18h 50m2 stops

11:20 am - 5:18 pmLIS-STL

35h 58m2 stops

$489United Airlines

Find Deal

Thu, Jan 8 - Wed, Jan 21

4:05 pm - 8:55 amSTL-LIS

34h 50m2 stops

11:20 am - 9:00 pmLIS-STL

39h 40m2 stops

$491Air Canada

Find Deal

Fri, Feb 20 - Wed, Mar 4

11:39 am - 8:10 amSTL-LIS

14h 31m1 stop

5:00 am - 12:05 amLIS-STL

25h 05m2 stops

$492Lufthansa

Find Deal

Tue, Feb 24 - Tue, Mar 3

8:30 am - 10:15 amSTL-LIS

19h 45m1 stop

6:10 am - 10:59 pmLIS-STL

22h 49m2 stops

$495United Airlines

Find Deal

Sun, Feb 22 - Mon, Mar 2

7:40 am - 10:15 amSTL-LIS

21h 35m2 stops

7:25 am - 10:59 pmLIS-STL

21h 34m2 stops

$496United Airlines

Find Deal

Tue, Mar 17 - Wed, Apr 1

6:00 am - 3:10 pmSTL-LIS

27h 10m2 stops

5:00 am - 4:37 pmLIS-STL

17h 37m2 stops

$499Delta

Find Deal

Wed, Dec 31 - Wed, Jan 14

United Airlines flights from St. Louis to Lisbon

Our best United Airlines deals on St. Louis to Lisbon flight tickets

United Airlines

Jan 8

STL8:30 amLambert-St Louis

18h 50m

2 stops

LIS9:20 amLisbon Humberto Delgado

Jan 21

LIS5:00 amLisbon Humberto Delgado

14h 55m

1 stop

STL1:55 pmLambert-St Louis

$482

Find similar

United Airlines

Jan 8

STL8:45 amLambert-St Louis

18h 35m

2 stops

LIS9:20 amLisbon Humberto Delgado

Jan 15

LIS11:20 amLisbon Humberto Delgado

33h 10m

2 stops

STL2:30 pmLambert-St Louis

$483

Find similar

United Airlines

Feb 20

STL7:41 amLambert-St Louis

20h 34m

2 stops

LIS10:15 amLisbon Humberto Delgado

Mar 4

LIS5:00 amLisbon Humberto Delgado

14h 55m

1 stop

STL1:55 pmLambert-St Louis

$487

Find similar

Air Canada flights from St. Louis to Lisbon

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

Air Canada

Feb 23

STL4:05 pmLambert-St Louis

35h 15m

2 stops

LIS9:20 amLisbon Humberto Delgado

Mar 3

LIS11:20 amLisbon Humberto Delgado

41h 39m

2 stops

STL10:59 pmLambert-St Louis

$484

Find similar

Air Canada

Feb 20

STL4:05 pmLambert-St Louis

34h 50m

2 stops

LIS8:55 amLisbon Humberto Delgado

Mar 4

LIS11:20 amLisbon Humberto Delgado

39h 40m

2 stops

STL9:00 pmLambert-St Louis

$491

Find similar

Air Canada

Dec 2

STL10:00 amLambert-St Louis

17h 20m

2 stops

LIS9:20 amLisbon Humberto Delgado

Dec 12

LIS11:20 amLisbon Humberto Delgado

34h 20m

2 stops

STL3:40 pmLambert-St Louis

$538

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 1/8

8:30 am-9:20 am

2 stops18h 50m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-1:55 pm

1 stop14h 55m

$482

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 1/8

8:45 am-9:20 am

2 stops18h 35m

Lisbon Humberto Delgado

Thu 1/15

11:20 am-2:30 pm

2 stops33h 10m

$483

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 2/23

4:05 pm-9:20 am

2 stops35h 15m

Lisbon Humberto Delgado

Tue 3/3

11:20 am-10:59 pm

2 stops41h 39m

$484

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 2/20

7:41 am-10:15 am

2 stops20h 34m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop14h 55m

$487

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 1/8

8:30 am-9:20 am

2 stops18h 50m

Lisbon Humberto Delgado

Wed 1/21

11:20 am-5:18 pm

2 stops35h 58m

$489

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 2/20

4:05 pm-8:55 am

2 stops34h 50m

Lisbon Humberto Delgado

Wed 3/4

11:20 am-9:00 pm

2 stops39h 40m

$491

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 2/24

11:39 am-8:10 am

1 stop14h 31m

Lisbon Humberto Delgado

Tue 3/3

5:00 am-12:05 am

2 stops25h 05m

$492

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 2/22

8:30 am-10:15 am

1 stop19h 45m

Lisbon Humberto Delgado

Mon 3/2

6:10 am-10:59 pm

2 stops22h 49m

$495

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 3/17

7:40 am-10:15 am

2 stops21h 35m

Lisbon Humberto Delgado

Wed 4/1

7:25 am-10:59 pm

2 stops21h 34m

$496

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/31

6:00 am-3:10 pm

2 stops27h 10m

Lisbon Humberto Delgado

Wed 1/14

5:00 am-4:37 pm

2 stops17h 37m

$499

Flights are sorted by cheapest round-trip flights first.

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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, February 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 $721. If you are unable to visit Lisbon during the month of February, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $738.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Monday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $894. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Lisbon for around $1,087.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is at noon when flights can be purchased for as low as $884. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,083 on average. Flights to Lisbon from St. Louis in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $982 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 $840 on momondo.

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	13h 50m
Direct flights	None

The fastest flight from St. Louis to Lisbon takes 13h 50m

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 10h 50m.
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 7 operators available for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport as of November 2025.
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 (37% of total bookings). The next most popular airlines are Air Canada (31%), American Airlines (16%), and Lufthansa (5%).

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 $544	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
United Airlines	PriceFrom $606	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
Iberia	PriceFrom $649	Free Cancellation	Rating 7.0 3,034 reviews	Search Iberia flights
Lufthansa	PriceFrom $682	Free Cancellation	Rating 6.8 7,594 reviews	Search Lufthansa flights
Delta	PriceFrom $718	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
British Airways	PriceFrom $733	Free Cancellation	Rating 6.7 7,539 reviews	Search British Airways flights
Air Canada	PriceFrom $823	Free Cancellation	Rating 7.1 10,476 reviews	Search Air Canada flights

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Peniche

Estoril

Leiria

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Tomar

Almada

Evora

Zambujeira do Mar

Figueira da Foz

Batalha

Óbidos

Torres Vedras

Comporta

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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 $255

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 3/3. 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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Big names and deals

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Filter for what you want

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Find the cheapest flights from St. Louis to Lisbon

Cheap round-trip flights

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United Airlines flights from St. Louis to Lisbon

Our best United Airlines deals on St. Louis to Lisbon flight tickets

Air Canada flights from St. Louis to Lisbon

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

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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

What is the cheapest month to fly to Lisbon?

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Monday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $894. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Lisbon for around $1,087.

What is the cheapest time of day to depart on your flight to Lisbon?

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

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

Delta 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: 53% 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 Philadelphia (PHL) have the shortest average one-way travel time: 10h 11m.

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