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

Lufthansa, Air Canada, 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?

Toronto (YYZ) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

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 43m.

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

Flights via Newark (EWR) offer the lowest average round-trip price of $884.

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 39% 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 travel time from St. Louis to Lisbon?

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

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 August 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.

$383 Cheap Flights from St. Louis to Lisbon in 2025

Q: 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 $1,015 to $1,364. The lowest price recently found on this route was $583.

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Find the cheapest flights from St. Louis to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

6:35 pm - 9:20 amSTL-LIS

32h 45m2 stops

11:20 am - 4:40 pmLIS-STL

35h 20m2 stops

$583United Airlines

Find Deal

Sat, Jan 3 - Fri, Jan 16

6:35 pm - 9:20 amSTL-LIS

32h 45m2 stops

5:00 am - 1:55 pmLIS-STL

14h 55m1 stop

$594

Find Deal

Sat, Jan 3 - Fri, Jan 16

6:45 am - 8:55 amSTL-LIS

20h 10m2 stops

11:20 am - 2:18 pmLIS-STL

32h 58m2 stops

$616Air Canada

Find Deal

Sat, Jan 10 - Sat, Jan 17

6:30 am - 9:20 amSTL-LIS

20h 50m2 stops

11:20 am - 12:15 pmLIS-STL

30h 55m2 stops

$626Air Canada

Find Deal

Thu, Nov 20 - Tue, Dec 2

3:50 pm - 2:50 pmSTL-LIS

17h 00m1 stop

10:15 am - 11:44 pmLIS-STL

19h 29m1 stop

$650Lufthansa

Find Deal

Wed, Nov 19 - Mon, Nov 24

5:28 pm - 11:30 pmSTL-LIS

24h 02m2 stops

5:05 am - 1:30 pmLIS-STL

14h 25m1 stop

$681Lufthansa

Find Deal

Tue, Oct 14 - Wed, Oct 22

2:15 pm - 5:55 pmSTL-LIS

21h 40m2 stops

6:35 am - 8:26 pmLIS-STL

19h 51m2 stops

$689British Airways

Find Deal

Tue, Oct 14 - Wed, Oct 22

8:00 pm - 4:05 pmSTL-LIS

38h 05m2 stops

7:00 am - 10:06 pmLIS-STL

20h 06m2 stops

$717British Airways

Find Deal

Sat, Oct 18 - Sat, Nov 1

1:03 pm - 9:05 amSTL-LIS

14h 02m1 stop

6:35 am - 11:49 pmLIS-STL

23h 14m2 stops

$766Iberia

Find Deal

Mon, Sep 29 - Thu, Oct 9

1:03 pm - 9:05 amSTL-LIS

14h 02m1 stop

8:45 pm - 9:04 amLIS-STL

42h 19m2 stops

$769Iberia

Find Deal

Mon, Sep 29 - Mon, Oct 6

Delta flights from St. Louis to Lisbon

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

Delta

Dec 3

STL12:00 pmLambert-St Louis

14h 00m

2 stops

LIS8:00 amLisbon Humberto Delgado

Dec 7

LIS10:00 amLisbon Humberto Delgado

12h 40m

1 stop

STL4:40 pmLambert-St Louis

$606

Find similar

Delta

Dec 3

STL11:51 amLambert-St Louis

14h 09m

2 stops

LIS8:00 amLisbon Humberto Delgado

Dec 7

LIS11:15 amLisbon Humberto Delgado

15h 34m

2 stops

STL8:49 pmLambert-St Louis

$619

Find similar

Delta

Dec 3

STL12:00 pmLambert-St Louis

14h 00m

2 stops

LIS8:00 amLisbon Humberto Delgado

Dec 7

LIS11:15 amLisbon Humberto Delgado

15h 34m

2 stops

STL8:49 pmLambert-St Louis

$627

Find similar

United Airlines flights from St. Louis to Lisbon

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

United Airlines

Jan 3

STL6:35 pmLambert-St Louis

32h 45m

2 stops

LIS9:20 amLisbon Humberto Delgado

Jan 16

LIS11:20 amLisbon Humberto Delgado

35h 20m

2 stops

STL4:40 pmLambert-St Louis

$583

Find similar

United Airlines

Dec 3

STL4:05 pmLambert-St Louis

10h 50m

1 stop

LIS8:55 amLisbon Humberto Delgado

Dec 7

LIS5:00 amLisbon Humberto Delgado

14h 55m

1 stop

STL1:55 pmLambert-St Louis

$601

Find similar

United Airlines

Dec 3

STL8:30 amLambert-St Louis

18h 25m

2 stops

LIS8:55 amLisbon Humberto Delgado

Dec 7

LIS5:00 amLisbon Humberto Delgado

14h 55m

1 stop

STL1:55 pmLambert-St Louis

$605

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 1/3

6:35 pm-9:20 am

2 stops32h 45m

Lisbon Humberto Delgado

Fri 1/16

11:20 am-4:40 pm

2 stops35h 20m

$583

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 1/3

6:35 pm-9:20 am

2 stops32h 45m

Lisbon Humberto Delgado

Fri 1/16

5:00 am-1:55 pm

1 stop14h 55m

$594

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 1/10

6:45 am-8:55 am

2 stops20h 10m

Lisbon Humberto Delgado

Sat 1/17

11:20 am-2:18 pm

2 stops32h 58m

$616

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 11/20

6:30 am-9:20 am

2 stops20h 50m

Lisbon Humberto Delgado

Tue 12/2

11:20 am-12:15 pm

2 stops30h 55m

$626

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/19

3:50 pm-2:50 pm

1 stop17h 00m

Lisbon Humberto Delgado

Mon 11/24

10:15 am-11:44 pm

1 stop19h 29m

$650

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 10/14

5:28 pm-11:30 pm

2 stops24h 02m

Lisbon Humberto Delgado

Wed 10/22

5:05 am-1:30 pm

1 stop14h 25m

$681

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 10/14

2:15 pm-5:55 pm

2 stops21h 40m

Lisbon Humberto Delgado

Wed 10/22

6:35 am-8:26 pm

2 stops19h 51m

$689

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 10/18

8:00 pm-4:05 pm

2 stops38h 05m

Lisbon Humberto Delgado

Sat 11/1

7:00 am-10:06 pm

2 stops20h 06m

$717

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 9/29

1:03 pm-9:05 am

1 stop14h 02m

Lisbon Humberto Delgado

Thu 10/9

6:35 am-11:49 pm

2 stops23h 14m

$766

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 9/29

1:03 pm-9:05 am

1 stop14h 02m

Lisbon Humberto Delgado

Mon 10/6

8:45 pm-9:04 am

2 stops42h 19m

$769

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?

What is the cheapest month to fly to Lisbon?

In general, November 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 $632. If you are unable to visit Lisbon during the month of November, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $672.

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 $944 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 $692 on momondo.

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

You could potentially save up to 19% 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	$383
Fastest flight time	9h 59m
Direct flights	None
Airports in Lisbon	1 airport

The best one-way flight to Lisbon from St. Louis in the past 72 hours is $383. The best round-trip flight deal from St. Louis to Lisbon found on momondo in the last 72 hours is $583.

The fastest flight from St. Louis to Lisbon takes 9h 59m

There are no direct flights from St. Louis to Lisbon. Popular non-direct route for this connection is Lambert-St Louis Airport - Lisbon Humberto Delgado Airport.

There is 1 airport near Lisbon: Lisbon Humberto Delgado (LIS)

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 9h 59m.
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 August 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 (34% of total bookings). The next most popular airlines are Air Canada (30%), American Airlines (16%), and Iberia (8%).

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 $568	Free Cancellation	Rating 7.0 2,878 reviews	Search Iberia flights
United Airlines	PriceFrom $602	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
American Airlines	PriceFrom $614	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Lufthansa	PriceFrom $630	Free Cancellation	Rating 6.8 7,317 reviews	Search Lufthansa flights
British Airways	PriceFrom $642	Free Cancellation	Rating 6.6 7,266 reviews	Search British Airways flights
Delta	PriceFrom $652	Free Cancellation	Rating 8.0 7,980 reviews	Search Delta flights
Air Canada	PriceFrom $823	Free Cancellation	Rating 7.1 9,949 reviews	Search Air Canada flights

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Almada

Evora

Peniche

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Estoril

Leiria

Figueira da Foz

Tomar

Batalha

Óbidos

Comporta

Torres Vedras

Costa da Caparica

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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 $383

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 10/15. 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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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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Cheap last minute flights

Delta flights from St. Louis to Lisbon

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

United Airlines flights from St. Louis to Lisbon

Our best United Airlines 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 typical price of a round-trip flight between St. Louis and Lisbon?

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 19% 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, Air Canada, and United Airlines 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: 67% 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 Newark (EWR) offer the lowest average round-trip price of $884.

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?

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 43m.

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

Best Price Found

Fastest flight time

Direct flights

Airports in Lisbon

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