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

Toronto (YYZ) was the most common stop: 62% 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 41% 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.

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.

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

United Airlines is the most popular carrier 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.

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.

$346 Cheap Flights from St. Louis to Lisbon in 2025/26

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8:15 am - 10:15 amSTL-LIS

20h 00m1 stop

11:20 am - 2:30 pmLIS-STL

33h 10m2 stops

$483United Airlines

Find Deal

Wed, Dec 31 - Tue, Jan 13

6:30 pm - 11:30 pmSTL-LIS

24h 00m2 stops

5:00 am - 2:55 pmLIS-STL

14h 55m1 stop

$484Lufthansa

Find Deal

Mon, Mar 9 - Wed, Mar 18

9:55 am - 10:15 amSTL-LIS

18h 20m2 stops

11:20 am - 2:30 pmLIS-STL

33h 10m2 stops

$487United Airlines

Find Deal

Wed, Dec 31 - Tue, Jan 13

8:15 am - 10:15 amSTL-LIS

20h 00m1 stop

11:20 am - 12:29 pmLIS-STL

31h 09m2 stops

$489United Airlines

Find Deal

Wed, Dec 31 - Fri, Jan 16

4:05 pm - 9:20 amSTL-LIS

11h 15m1 stop

5:00 am - 3:29 pmLIS-STL

40h 29m2 stops

$491Air Canada

Find Deal

Fri, Jan 30 - Tue, Feb 3

8:15 am - 10:15 amSTL-LIS

20h 00m1 stop

5:00 am - 10:58 pmLIS-STL

23h 58m2 stops

$492United Airlines

Find Deal

Wed, Dec 31 - Wed, Jan 14

6:29 am - 8:00 amSTL-LIS

19h 31m2 stops

5:30 am - 8:06 pmLIS-STL

20h 36m2 stops

$493Delta

Find Deal

Fri, Jan 2 - Tue, Jan 13

6:30 pm - 11:30 pmSTL-LIS

24h 00m2 stops

5:00 am - 5:44 pmLIS-STL

17h 44m2 stops

$494Lufthansa

Find Deal

Mon, Mar 9 - Wed, Mar 18

9:57 am - 9:20 amSTL-LIS

17h 23m2 stops

5:00 am - 3:29 pmLIS-STL

40h 29m2 stops

$496Air Canada

Find Deal

Fri, Jan 30 - Tue, Feb 3

6:29 am - 8:00 amSTL-LIS

19h 31m2 stops

10:00 am - 11:39 pmLIS-STL

19h 39m2 stops

$497Delta

Find Deal

Fri, Jan 2 - Sat, Jan 17

United Airlines flights from St. Louis to Lisbon

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

United Airlines

Dec 31

STL8:15 amLambert-St Louis

20h 00m

1 stop

LIS10:15 amLisbon Humberto Delgado

Jan 13

LIS11:20 amLisbon Humberto Delgado

33h 10m

2 stops

STL2:30 pmLambert-St Louis

$483

Find similar

United Airlines

Dec 31

STL9:55 amLambert-St Louis

18h 20m

2 stops

LIS10:15 amLisbon Humberto Delgado

Jan 13

LIS11:20 amLisbon Humberto Delgado

33h 10m

2 stops

STL2:30 pmLambert-St Louis

$487

Find similar

United Airlines

Dec 31

STL8:15 amLambert-St Louis

20h 00m

1 stop

LIS10:15 amLisbon Humberto Delgado

Jan 16

LIS11:20 amLisbon Humberto Delgado

31h 09m

2 stops

STL12:29 pmLambert-St Louis

$489

Find similar

Air Canada flights from St. Louis to Lisbon

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

Air Canada

Jan 30

STL4:05 pmLambert-St Louis

11h 15m

1 stop

LIS9:20 amLisbon Humberto Delgado

Feb 3

LIS5:00 amLisbon Humberto Delgado

40h 29m

2 stops

STL3:29 pmLambert-St Louis

$491

Find similar

Air Canada

Jan 30

STL9:57 amLambert-St Louis

17h 23m

2 stops

LIS9:20 amLisbon Humberto Delgado

Feb 3

LIS5:00 amLisbon Humberto Delgado

40h 29m

2 stops

STL3:29 pmLambert-St Louis

$496

Find similar

Air Canada

Dec 31

STL4:05 pmLambert-St Louis

10h 50m

1 stop

LIS8:55 amLisbon Humberto Delgado

Jan 19

LIS11:20 amLisbon Humberto Delgado

34h 09m

1 stop

STL3:29 pmLambert-St Louis

$505

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/31

8:15 am-10:15 am

1 stop20h 00m

Lisbon Humberto Delgado

Tue 1/13

11:20 am-2:30 pm

2 stops33h 10m

$483

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 3/9

6:30 pm-11:30 pm

2 stops24h 00m

Lisbon Humberto Delgado

Wed 3/18

5:00 am-2:55 pm

1 stop14h 55m

$484

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/31

9:55 am-10:15 am

2 stops18h 20m

Lisbon Humberto Delgado

Tue 1/13

11:20 am-2:30 pm

2 stops33h 10m

$487

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/31

8:15 am-10:15 am

1 stop20h 00m

Lisbon Humberto Delgado

Fri 1/16

11:20 am-12:29 pm

2 stops31h 09m

$489

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/30

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Tue 2/3

5:00 am-3:29 pm

2 stops40h 29m

$491

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/31

8:15 am-10:15 am

1 stop20h 00m

Lisbon Humberto Delgado

Wed 1/14

5:00 am-10:58 pm

2 stops23h 58m

$492

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/2

6:29 am-8:00 am

2 stops19h 31m

Lisbon Humberto Delgado

Tue 1/13

5:30 am-8:06 pm

2 stops20h 36m

$493

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 3/9

6:30 pm-11:30 pm

2 stops24h 00m

Lisbon Humberto Delgado

Wed 3/18

5:00 am-5:44 pm

2 stops17h 44m

$494

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/30

9:57 am-9:20 am

2 stops17h 23m

Lisbon Humberto Delgado

Tue 2/3

5:00 am-3:29 pm

2 stops40h 29m

$496

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/2

6:29 am-8:00 am

2 stops19h 31m

Lisbon Humberto Delgado

Sat 1/17

10:00 am-11:39 pm

2 stops19h 39m

$497

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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 $954 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.

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

You could potentially save up to 5% 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

Direct flights	None

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 (35% of total bookings). The next most popular airlines are Air Canada (29%), American Airlines (16%), and Iberia (7%).

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
Iberia	PriceFrom $593	Free Cancellation	Rating 7.0 3,025 reviews	Search Iberia flights
United Airlines	PriceFrom $605	Free Cancellation	Rating 7.4 9,019 reviews	Search United Airlines flights
American Airlines	PriceFrom $660	Free Cancellation	Rating 7.2 11,044 reviews	Search American Airlines flights
British Airways	PriceFrom $667	Free Cancellation	Rating 6.7 7,532 reviews	Search British Airways flights
Lufthansa	PriceFrom $672	Free Cancellation	Rating 6.8 7,576 reviews	Search Lufthansa flights
Delta	PriceFrom $680	Free Cancellation	Rating 7.9 8,003 reviews	Search Delta flights
Air Canada	PriceFrom $823	Free Cancellation	Rating 7.1 10,462 reviews	Search Air Canada flights

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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.

An easier way to manage your Lisbon trip

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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 1/15. 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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Filter for what you want

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United Airlines flights from St. Louis to Lisbon

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

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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?

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

You could potentially save up to 5% 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?

United Airlines is the most popular carrier 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: 62% 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

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