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

Scandinavian Airlines, Air Canada, and Lufthansa 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 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 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 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.

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 September 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

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from St. Louis to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

4:05 pm - 8:55 amSTL-LIS

10h 50m1 stop

10:55 am - 2:30 pmLIS-STL

33h 35m2 stops

$534United Airlines

Find Deal

mer, dic 31 - gio, gen 15

11:05 am - 8:10 amSTL-LIS

15h 05m2 stops

5:00 am - 1:55 pmLIS-STL

14h 55m1 stop

$536United Airlines

Find Deal

mer, dic 31 - ven, gen 16

11:05 am - 9:20 amSTL-LIS

16h 15m2 stops

11:20 am - 2:30 pmLIS-STL

33h 10m2 stops

$539Air Canada

Find Deal

mar, nov 18 - mer, feb 4

10:00 am - 9:20 amSTL-LIS

17h 20m2 stops

5:00 am - 3:29 pmLIS-STL

40h 29m2 stops

$545Air Canada

Find Deal

mar, nov 18 - mer, nov 26

10:45 am - 8:00 amSTL-LIS

15h 15m2 stops

11:15 am - 9:03 pmLIS-STL

15h 48m2 stops

$549Virgin Atlantic

Find Deal

mar, dic 2 - lun, dic 8

11:49 am - 11:30 pmSTL-LIS

29h 41m2 stops

5:00 am - 1:55 pmLIS-STL

14h 55m1 stop

$566Lufthansa

Find Deal

mar, nov 18 - mer, nov 26

7:05 am - 8:00 amSTL-LIS

18h 55m2 stops

10:00 am - 8:57 pmLIS-STL

16h 57m1 stop

$577Delta

Find Deal

gio, gen 1 - mar, gen 13

6:43 pm - 11:30 pmSTL-LIS

22h 47m2 stops

12:25 pm - 1:55 pmLIS-STL

31h 30m1 stop

$585Lufthansa

Find Deal

mar, nov 18 - gio, nov 27

11:44 am - 8:00 amSTL-LIS

14h 16m2 stops

11:15 am - 11:40 pmLIS-STL

18h 25m2 stops

$589Virgin Atlantic

Find Deal

mar, nov 11 - lun, nov 17

5:15 pm - 6:40 pmSTL-LIS

19h 25m2 stops

5:00 am - 10:04 pmLIS-STL

22h 04m2 stops

$604Delta

Find Deal

sab, ott 18 - sab, nov 1

Air Canada flights from St. Louis to Lisbon

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

Air Canada

Nov 18

STL11:05 amLambert-St Louis

16h 15m

2 stops

LIS9:20 amLisbon Humberto Delgado

Feb 4

LIS11:20 amLisbon Humberto Delgado

33h 10m

2 stops

STL2:30 pmLambert-St Louis

$539

Find similar

Air Canada

Nov 18

STL10:00 amLambert-St Louis

17h 20m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 26

LIS5:00 amLisbon Humberto Delgado

40h 29m

2 stops

STL3:29 pmLambert-St Louis

$545

Find similar

Air Canada

Mar 16

STL4:05 pmLambert-St Louis

36h 15m

2 stops

LIS9:20 amLisbon Humberto Delgado

Mar 24

LIS5:00 amLisbon Humberto Delgado

39h 29m

2 stops

STL3:29 pmLambert-St Louis

$547

Find similar

United Airlines flights from St. Louis to Lisbon

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

United Airlines

Dec 31

STL4:05 pmLambert-St Louis

10h 50m

1 stop

LIS8:55 amLisbon Humberto Delgado

Jan 15

LIS10:55 amLisbon Humberto Delgado

33h 35m

2 stops

STL2:30 pmLambert-St Louis

$534

Find similar

United Airlines

Dec 31

STL11:05 amLambert-St Louis

15h 05m

2 stops

LIS8:10 amLisbon Humberto Delgado

Jan 16

LIS5:00 amLisbon Humberto Delgado

14h 55m

1 stop

STL1:55 pmLambert-St Louis

$536

Find similar

United Airlines

Dec 31

STL8:05 amLambert-St Louis

20h 10m

2 stops

LIS10:15 amLisbon Humberto Delgado

Jan 15

LIS10:55 amLisbon Humberto Delgado

33h 35m

2 stops

STL2:30 pmLambert-St Louis

$537

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mer 12/31

4:05 pm-8:55 am

1 stop10h 50m

Lisbon Humberto Delgado

gio 1/15

10:55 am-2:30 pm

2 stops33h 35m

$534

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mer 12/31

11:05 am-8:10 am

2 stops15h 05m

Lisbon Humberto Delgado

ven 1/16

5:00 am-1:55 pm

1 stop14h 55m

$536

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mar 11/18

11:05 am-9:20 am

2 stops16h 15m

Lisbon Humberto Delgado

mer 2/4

11:20 am-2:30 pm

2 stops33h 10m

$539

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mar 11/18

10:00 am-9:20 am

2 stops17h 20m

Lisbon Humberto Delgado

mer 11/26

5:00 am-3:29 pm

2 stops40h 29m

$545

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mar 12/2

10:45 am-8:00 am

2 stops15h 15m

Lisbon Humberto Delgado

lun 12/8

11:15 am-9:03 pm

2 stops15h 48m

$549

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mar 11/18

11:49 am-11:30 pm

2 stops29h 41m

Lisbon Humberto Delgado

mer 11/26

5:00 am-1:55 pm

1 stop14h 55m

$566

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

gio 1/1

7:05 am-8:00 am

2 stops18h 55m

Lisbon Humberto Delgado

mar 1/13

10:00 am-8:57 pm

1 stop16h 57m

$577

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mar 11/18

6:43 pm-11:30 pm

2 stops22h 47m

Lisbon Humberto Delgado

gio 11/27

12:25 pm-1:55 pm

1 stop31h 30m

$585

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

mar 11/11

11:44 am-8:00 am

2 stops14h 16m

Lisbon Humberto Delgado

lun 11/17

11:15 am-11:40 pm

2 stops18h 25m

$589

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

sab 10/18

5:15 pm-6:40 pm

2 stops19h 25m

Lisbon Humberto Delgado

sab 11/1

5:00 am-10:04 pm

2 stops22h 04m

$604

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, 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 $624. 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 $934 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 $745 on momondo.

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

You could potentially save up to 20% 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 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 7 operators available for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport as of September 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 (28%), 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 $566	Free Cancellation	Rating 7.0 2,925 reviews	Search Iberia flights
United Airlines	PriceFrom $605	Free Cancellation	Rating 7.4 8,926 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 7,409 reviews	Search Lufthansa flights
British Airways	PriceFrom $667	Free Cancellation	Rating 6.7 7,367 reviews	Search British Airways flights
Delta	PriceFrom $680	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
Air Canada	PriceFrom $819	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights

Sintra

Fátima

Ericeira

Nazaré

Oeiras

Setúbal

Peniche

Almada

Leiria

Tomar

Estoril

Sesimbra

Evora

Figueira da Foz

Zambujeira do Mar

Torres Vedras

Batalha

Óbidos

Comporta

Costa da Caparica

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

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

ven 10/17

ven 10/24

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Airports servicing Portugal

Cheap flights from St. Louis to Lisbon from $346

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 12/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from St. Louis to Lisbon

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Air Canada flights from St. Louis to Lisbon

Our best Air Canada 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

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Lisbon that are best for you.

See travel insights to Lisbon from

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 20% 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?

Scandinavian Airlines, Air Canada, and Lufthansa 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

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