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Cheap flights from St. Louis to Lisbon from $403

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 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
Multiple Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$464Multiple Airlines
Sun, Feb 22 - Wed, Mar 4
Air Canada Logo
4:05 pm - 9:20 am
STL
-
LIS
35h 15m2 stops
Air Canada Logo
5:00 am - 3:29 pm
LIS
-
STL
40h 29m2 stops
$468Air Canada
Mon, Feb 16 - Wed, Mar 4
Multiple Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
Multiple Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$470Multiple Airlines
Sun, Feb 22 - Wed, Mar 4
United Airlines Logo
7:00 am - 8:10 am
STL
-
LIS
19h 10m1 stop
United Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$481United Airlines
Mon, Feb 16 - Wed, Mar 4
Lufthansa Logo
12:15 pm - 10:15 am
STL
-
LIS
16h 00m1 stop
Lufthansa Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$484Lufthansa
Tue, Feb 24 - Wed, Mar 4
Lufthansa Logo
11:22 am - 8:10 am
STL
-
LIS
14h 48m1 stop
Lufthansa Logo
8:20 am - 11:59 pm
LIS
-
STL
21h 39m2 stops
$485Lufthansa
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
United Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$486United Airlines
Fri, Feb 20 - Wed, Mar 4
United Airlines Logo
7:41 am - 7:55 am
STL
-
LIS
18h 14m2 stops
United Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$487United Airlines
Thu, Feb 19 - Wed, Mar 4
United Airlines Logo
7:00 am - 10:15 am
STL
-
LIS
21h 15m2 stops
United Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$488United Airlines
Sat, Feb 21 - Wed, Mar 4
Air Canada Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
Air Canada Logo
11:20 am - 9:42 pm
LIS
-
STL
40h 22m2 stops
$489Air Canada
Fri, Feb 20 - Thu, Mar 5

British Airways flights from St. Louis to Lisbon

Our best British Airways deals on St. Louis to Lisbon flight tickets
British Airways
Feb 7
STL12:06 pmLambert-St Louis
20h 44m
2 stops
LIS2:50 pmLisbon Humberto Delgado
Feb 14
LIS10:40 amLisbon Humberto Delgado
18h 22m
1 stop
STL11:02 pmLambert-St Louis
$495
Find similar
British Airways
Feb 8
STL2:54 pmLambert-St Louis
20h 51m
2 stops
LIS5:45 pmLisbon Humberto Delgado
Feb 15
LIS7:05 amLisbon Humberto Delgado
22h 18m
2 stops
STL11:23 pmLambert-St Louis
$507
Find similar
British Airways
Dec 26
STL1:59 pmLambert-St Louis
12h 51m
1 stop
LIS8:50 amLisbon Humberto Delgado
Dec 28
LIS10:40 amLisbon Humberto Delgado
19h 04m
2 stops
STL11:44 pmLambert-St Louis
$725
Find similar

Lufthansa flights from St. Louis to Lisbon

Our best Lufthansa deals on St. Louis to Lisbon flight tickets
Lufthansa
Feb 24
STL12:15 pmLambert-St Louis
16h 00m
1 stop
LIS10:15 amLisbon Humberto Delgado
Mar 4
LIS5:00 amLisbon Humberto Delgado
14h 55m
1 stop
STL1:55 pmLambert-St Louis
$484
Find similar
Lufthansa
Jan 23
STL11:22 amLambert-St Louis
14h 48m
1 stop
LIS8:10 amLisbon Humberto Delgado
Jan 27
LIS8:20 amLisbon Humberto Delgado
21h 39m
2 stops
STL11:59 pmLambert-St Louis
$485
Find similar
Lufthansa
Feb 24
STL12:15 pmLambert-St Louis
16h 00m
1 stop
LIS10:15 amLisbon Humberto Delgado
Mar 3
LIS5:00 amLisbon Humberto Delgado
25h 05m
2 stops
STL12:05 amLambert-St Louis
$494
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 26, 2025.
Use the filters below to find and compare flights from St. Louis to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 2/22

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop14h 55m

$464

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 2/16

4:05 pm-9:20 am

2 stops35h 15m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-3:29 pm

2 stops40h 29m

$468

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 2/22

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop14h 55m

$470

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 2/16

7:00 am-8:10 am

1 stop19h 10m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop14h 55m

$481

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 2/24

12:15 pm-10:15 am

1 stop16h 00m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop14h 55m

$484

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/23

11:22 am-8:10 am

1 stop14h 48m

Lisbon Humberto Delgado

Tue 1/27

8:20 am-11:59 pm

2 stops21h 39m

$485

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 2/20

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop14h 55m

$486

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 2/19

7:41 am-7:55 am

2 stops18h 14m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop14h 55m

$487

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 2/21

7:00 am-10:15 am

2 stops21h 15m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop14h 55m

$488

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 2/20

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Thu 3/5

11:20 am-9:42 pm

2 stops40h 22m

$489

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

In general, January 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 $634. If you are unable to visit Lisbon during the month of January, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $748.

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 $1,086 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.

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

You could potentially save up to 56% 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

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?

  • 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?

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 AirlinesPriceFrom $505Free CancellationRating
7.2
11,065 reviews
Search American Airlines flights
IberiaPriceFrom $571Free CancellationRating
7.0
3,060 reviews
Search Iberia flights
United AirlinesPriceFrom $617Free CancellationRating
7.4
9,116 reviews
Search United Airlines flights
LufthansaPriceFrom $626Free CancellationRating
6.8
7,656 reviews
Search Lufthansa flights
DeltaPriceFrom $718Free CancellationRating
7.9
8,015 reviews
Search Delta flights
Air CanadaPriceFrom $796Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Ericeira
Fátima
Nazaré
Setúbal
Peniche
Estoril
Leiria
Oeiras
Sesimbra
Tomar
Evora
Figueira da Foz
Zambujeira do Mar
Batalha
Comporta
Torres Vedras
Óbidos
Sines
Almada

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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