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

Lufthansa, United Airlines, and Air Canada 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?

Toronto (YYZ) was the most common stop: 62% 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 Philadelphia (PHL) have the shortest average one-way travel time: 10h 11m.

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 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.

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.

$263 Cheap Flights from St. Louis to Lisbon in 2025/26

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7:00 am - 9:20 amSTL-LIS

20h 20m2 stops

5:00 am - 1:55 pmLIS-STL

14h 55m1 stop

$479United Airlines

Find Deal

Thu, Jan 8 - Wed, Jan 21

11:20 am - 9:20 amSTL-LIS

16h 00m2 stops

5:00 am - 3:29 pmLIS-STL

40h 29m2 stops

$483Air Canada

Find Deal

Thu, Jan 8 - Wed, Jan 21

6:30 am - 9:20 amSTL-LIS

20h 50m2 stops

5:00 am - 3:29 pmLIS-STL

40h 29m2 stops

$484Air Canada

Find Deal

Tue, Feb 3 - Tue, Feb 10

7:10 am - 8:40 amSTL-LIS

19h 30m1 stop

5:00 am - 8:45 pmLIS-STL

21h 45m2 stops

$496Delta

Find Deal

Wed, Dec 31 - Tue, Jan 13

7:10 am - 8:40 amSTL-LIS

19h 30m1 stop

10:00 am - 8:06 pmLIS-STL

16h 06m1 stop

$499Delta

Find Deal

Wed, Dec 31 - Mon, Jan 19

5:29 pm - 8:00 amSTL-LIS

32h 31m1 stop

5:00 am - 8:06 pmLIS-STL

21h 06m2 stops

$501Delta

Find Deal

Mon, Jan 5 - Sun, Jan 18

6:02 pm - 5:40 pmSTL-LIS

17h 38m2 stops

11:05 am - 10:44 pmLIS-STL

17h 39m1 stop

$502American Airlines

Find Deal

Tue, Feb 3 - Tue, Feb 10

6:00 am - 9:05 amSTL-LIS

21h 05m1 stop

11:05 am - 11:08 pmLIS-STL

18h 03m1 stop

$506Multiple Airlines

Find Deal

Thu, Feb 12 - Sun, Feb 22

1:36 pm - 9:05 amSTL-LIS

13h 29m2 stops

11:05 am - 7:30 pmLIS-STL

14h 25m2 stops

$510Multiple Airlines

Find Deal

Thu, Feb 12 - Sun, Feb 22

6:00 am - 8:00 amSTL-LIS

20h 00m2 stops

12:20 pm - 4:39 pmLIS-STL

34h 19m2 stops

$519Delta

Find Deal

Fri, Jan 2 - Mon, Jan 19

Air Canada flights from St. Louis to Lisbon

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

Air Canada

Feb 17

STL7:41 amLambert-St Louis

19h 39m

2 stops

LIS9:20 amLisbon Humberto Delgado

Feb 24

LIS11:20 amLisbon Humberto Delgado

39h 40m

2 stops

STL9:00 pmLambert-St Louis

$483

Find similar

Air Canada

Feb 18

STL4:05 pmLambert-St Louis

33h 50m

2 stops

LIS7:55 amLisbon Humberto Delgado

Feb 24

LIS11:20 amLisbon Humberto Delgado

39h 40m

2 stops

STL9:00 pmLambert-St Louis

$485

Find similar

Air Canada

Feb 15

STL6:30 amLambert-St Louis

20h 50m

2 stops

LIS9:20 amLisbon Humberto Delgado

Feb 24

LIS11:20 amLisbon Humberto Delgado

41h 39m

2 stops

STL10:59 pmLambert-St Louis

$489

Find similar

Delta flights from St. Louis to Lisbon

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

Delta

Dec 31

STL7:10 amLambert-St Louis

19h 30m

1 stop

LIS8:40 amLisbon Humberto Delgado

Jan 13

LIS10:00 amLisbon Humberto Delgado

16h 06m

1 stop

STL8:06 pmLambert-St Louis

$499

Find similar

Delta

Jan 5

STL5:29 pmLambert-St Louis

32h 31m

1 stop

LIS8:00 amLisbon Humberto Delgado

Jan 18

LIS5:00 amLisbon Humberto Delgado

21h 06m

2 stops

STL8:06 pmLambert-St Louis

$501

Find similar

Delta

Feb 17

STL9:45 amLambert-St Louis

16h 15m

1 stop

LIS8:00 amLisbon Humberto Delgado

Feb 28

LIS5:30 amLisbon Humberto Delgado

21h 15m

2 stops

STL8:45 pmLambert-St Louis

$502

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 1/8

7:00 am-9:20 am

2 stops20h 20m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-1:55 pm

1 stop14h 55m

$479

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 1/8

11:20 am-9:20 am

2 stops16h 00m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-3:29 pm

2 stops40h 29m

$483

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 2/3

6:30 am-9:20 am

2 stops20h 50m

Lisbon Humberto Delgado

Tue 2/10

5:00 am-3:29 pm

2 stops40h 29m

$484

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/31

7:10 am-8:40 am

1 stop19h 30m

Lisbon Humberto Delgado

Tue 1/13

5:00 am-8:45 pm

2 stops21h 45m

$496

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/31

7:10 am-8:40 am

1 stop19h 30m

Lisbon Humberto Delgado

Mon 1/19

10:00 am-8:06 pm

1 stop16h 06m

$499

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 1/5

5:29 pm-8:00 am

1 stop32h 31m

Lisbon Humberto Delgado

Sun 1/18

5:00 am-8:06 pm

2 stops21h 06m

$501

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 2/3

6:02 pm-5:40 pm

2 stops17h 38m

Lisbon Humberto Delgado

Tue 2/10

11:05 am-10:44 pm

1 stop17h 39m

$502

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 2/12

6:00 am-9:05 am

1 stop21h 05m

Lisbon Humberto Delgado

Sun 2/22

11:05 am-11:08 pm

1 stop18h 03m

$506

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 2/12

1:36 pm-9:05 am

2 stops13h 29m

Lisbon Humberto Delgado

Sun 2/22

11:05 am-7:30 pm

2 stops14h 25m

$510

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/2

6:00 am-8:00 am

2 stops20h 00m

Lisbon Humberto Delgado

Mon 1/19

12:20 pm-4:39 pm

2 stops34h 19m

$519

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 $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 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 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 3,016 reviews	Search Iberia flights
United Airlines	PriceFrom $605	Free Cancellation	Rating 7.4 9,017 reviews	Search United Airlines flights
American Airlines	PriceFrom $660	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
British Airways	PriceFrom $667	Free Cancellation	Rating 6.7 7,522 reviews	Search British Airways flights
Lufthansa	PriceFrom $672	Free Cancellation	Rating 6.8 7,572 reviews	Search Lufthansa flights
Delta	PriceFrom $680	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights
Air Canada	PriceFrom $823	Free Cancellation	Rating 7.1 10,450 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 $263

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 2/3. 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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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?

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?

Lufthansa, United Airlines, and Air Canada 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: 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