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.

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

Toronto (YYZ) was the most common stop: 56% 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.

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 December 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.

$267 Cheap Flights from St. Louis to Lisbon in 2025/26

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 $1,311 to $2,840. The lowest price recently found on this route was $472.

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4:05 pm - 9:20 am

STL

LIS

11h 15m1 stop

5:00 am - 1:55 pm

LIS

STL

14h 55m1 stop

$472Multiple Airlines

Sun, Jan 18 - Sun, Jan 25

1:15 pm - 8:10 am

STL

LIS

12h 55m2 stops

5:00 am - 1:55 pm

LIS

STL

14h 55m1 stop

$483United Airlines

Sun, Jan 18 - Sun, Jan 25

4:05 pm - 9:20 am

STL

LIS

11h 15m1 stop

11:20 am - 9:00 pm

LIS

STL

39h 40m2 stops

$487Multiple Airlines

Mon, Feb 2 - Sat, Feb 14

6:40 pm - 9:20 am

STL

LIS

32h 40m2 stops

5:00 am - 10:58 pm

LIS

STL

23h 58m2 stops

$488Multiple Airlines

Mon, Jan 19 - Mon, Feb 2

3:11 pm - 9:20 am

STL

LIS

36h 09m2 stops

11:20 am - 2:30 pm

LIS

STL

33h 10m2 stops

$490United Airlines

Wed, Jan 7 - Tue, Jan 20

9:57 am - 8:10 am

STL

LIS

16h 13m2 stops

11:20 am - 2:30 pm

LIS

STL

33h 10m2 stops

$491United Airlines

Fri, Jan 30 - Tue, Feb 3

4:49 pm - 9:20 am

STL

LIS

34h 31m2 stops

11:20 am - 2:30 pm

LIS

STL

33h 10m2 stops

$493United Airlines

Sat, Jan 10 - Sat, Jan 24

12:06 pm - 12:10 pm

STL

LIS

18h 04m2 stops

10:40 am - 10:44 pm

LIS

STL

18h 04m1 stop

$494British Airways

Sat, Jan 10 - Sat, Jan 24

1:15 pm - 9:20 am

STL

LIS

38h 05m2 stops

11:20 am - 12:29 pm

LIS

STL

31h 09m2 stops

$496United Airlines

Thu, Jan 8 - Wed, Jan 21

6:30 am - 10:15 am

STL

LIS

21h 45m2 stops

5:00 am - 9:00 pm

LIS

STL

22h 00m2 stops

$498United Airlines

Sat, Feb 21 - Sat, Feb 28

United Airlines flights from St. Louis to Lisbon

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

United Airlines

Jan 7

STL3:11 pmLambert-St Louis

36h 09m

2 stops

LIS9:20 amLisbon Humberto Delgado

Jan 20

LIS11:20 amLisbon Humberto Delgado

33h 10m

2 stops

STL2:30 pmLambert-St Louis

$490

Find similar

United Airlines

Jan 30

STL9:57 amLambert-St Louis

16h 13m

2 stops

LIS8:10 amLisbon Humberto Delgado

Feb 3

LIS11:20 amLisbon Humberto Delgado

33h 10m

2 stops

STL2:30 pmLambert-St Louis

$491

Find similar

United Airlines

Jan 10

STL4:49 pmLambert-St Louis

34h 31m

2 stops

LIS9:20 amLisbon Humberto Delgado

Jan 24

LIS11:20 amLisbon Humberto Delgado

33h 10m

2 stops

STL2:30 pmLambert-St Louis

$493

Find similar

American Airlines flights from St. Louis to Lisbon

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

American Airlines

Mar 9

STL6:33 pmLambert-St Louis

15h 22m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Mar 17

LIS6:30 amLisbon Humberto Delgado

22h 22m

2 stops

STL11:52 pmLambert-St Louis

$501

Find similar

American Airlines

Jan 8

STL2:54 pmLambert-St Louis

15h 16m

2 stops

LIS12:10 pmLisbon Humberto Delgado

Jan 21

LIS11:05 amLisbon Humberto Delgado

17h 39m

1 stop

STL10:44 pmLambert-St Louis

$502

Find similar

American Airlines

Mar 9

STL2:00 pmLambert-St Louis

14h 05m

1 stop

LIS9:05 amLisbon Humberto Delgado

Mar 17

LIS6:30 amLisbon Humberto Delgado

22h 22m

2 stops

STL11:52 pmLambert-St Louis

$504

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/18

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Sun 1/25

5:00 am-1:55 pm

1 stop14h 55m

$472

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/18

1:15 pm-8:10 am

2 stops12h 55m

Lisbon Humberto Delgado

Sun 1/25

5:00 am-1:55 pm

1 stop14h 55m

$483

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 2/2

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Sat 2/14

11:20 am-9:00 pm

2 stops39h 40m

$487

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 1/19

6:40 pm-9:20 am

2 stops32h 40m

Lisbon Humberto Delgado

Mon 2/2

5:00 am-10:58 pm

2 stops23h 58m

$488

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 1/7

3:11 pm-9:20 am

2 stops36h 09m

Lisbon Humberto Delgado

Tue 1/20

11:20 am-2:30 pm

2 stops33h 10m

$490

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/30

9:57 am-8:10 am

2 stops16h 13m

Lisbon Humberto Delgado

Tue 2/3

11:20 am-2:30 pm

2 stops33h 10m

$491

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 1/10

4:49 pm-9:20 am

2 stops34h 31m

Lisbon Humberto Delgado

Sat 1/24

11:20 am-2:30 pm

2 stops33h 10m

$493

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 1/10

12:06 pm-12:10 pm

2 stops18h 04m

Lisbon Humberto Delgado

Sat 1/24

10:40 am-10:44 pm

1 stop18h 04m

$494

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 1/8

1:15 pm-9:20 am

2 stops38h 05m

Lisbon Humberto Delgado

Wed 1/21

11:20 am-12:29 pm

2 stops31h 09m

$496

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 2/21

6:30 am-10:15 am

2 stops21h 45m

Lisbon Humberto Delgado

Sat 2/28

5:00 am-9:00 pm

2 stops22h 00m

$498

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 $764. If you are unable to visit Lisbon during the month of November, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $769.

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 $1,061 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 $853 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	11h 15m
Direct flights	None

The fastest flight from St. Louis to Lisbon takes 11h 15m

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 December 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 (36% of total bookings). The next most popular airlines are Air Canada (32%), 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 11,045 reviews	Search American Airlines flights
United Airlines	PriceFrom $604	Free Cancellation	Rating 7.4 9,089 reviews	Search United Airlines flights
Iberia	PriceFrom $649	Free Cancellation	Rating 7.0 3,043 reviews	Search Iberia flights
Lufthansa	PriceFrom $682	Free Cancellation	Rating 6.8 7,618 reviews	Search Lufthansa flights
Delta	PriceFrom $718	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights
British Airways	PriceFrom $733	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
Air Canada	PriceFrom $796	Free Cancellation	Rating 7.1 10,514 reviews	Search Air Canada flights

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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 $267

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 3/11. 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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United Airlines flights from St. Louis to Lisbon

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

American Airlines flights from St. Louis to Lisbon

Our best American 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?

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: 56% 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