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Cheap flights from St. Louis to Lisbon from $252

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 3/17. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:54 pm - 2:50 pmSTL-LIS
17h 56m2 stops
Multiple Airlines Logo
6:30 am - 6:34 pmLIS-STL
18h 04m2 stops
$443Multiple Airlines
Find Deal
Sun, Jan 11 - Tue, Jan 27
British Airways Logo
2:54 pm - 2:50 pmSTL-LIS
17h 56m2 stops
British Airways Logo
11:05 am - 10:44 pmLIS-STL
17h 39m1 stop
$444British Airways
Find Deal
Sun, Jan 11 - Tue, Jan 27
American Airlines Logo
11:55 am - 9:05 amSTL-LIS
15h 10m2 stops
American Airlines Logo
6:30 am - 6:16 pmLIS-STL
17h 46m2 stops
$445American Airlines
Find Deal
Sun, Jan 11 - Tue, Jan 27
British Airways Logo
12:01 pm - 12:05 pmSTL-LIS
18h 04m2 stops
British Airways Logo
11:05 am - 10:44 pmLIS-STL
17h 39m1 stop
$446British Airways
Find Deal
Sun, Feb 1 - Tue, Feb 10
Delta Logo
6:29 am - 8:00 amSTL-LIS
19h 31m2 stops
Delta Logo
10:00 am - 12:33 pmLIS-STL
32h 33m1 stop
$447Delta
Find Deal
Wed, Dec 31 - Thu, Jan 15
Multiple Airlines Logo
2:54 pm - 12:05 pmSTL-LIS
15h 11m2 stops
Multiple Airlines Logo
8:20 am - 9:15 pmLIS-STL
18h 55m2 stops
$451Multiple Airlines
Find Deal
Sun, Feb 1 - Tue, Feb 10
Lufthansa Logo
11:39 am - 8:10 amSTL-LIS
14h 31m1 stop
Lufthansa Logo
11:55 am - 8:23 pmLIS-STL
14h 28m1 stop
$452Lufthansa
Find Deal
Tue, Feb 24 - Tue, Mar 3
Air Canada Logo
4:05 pm - 9:20 amSTL-LIS
11h 15m1 stop
Air Canada Logo
10:55 am - 3:29 pmLIS-STL
34h 34m1 stop
$454Air Canada
Find Deal
Mon, Feb 2 - Fri, Feb 13
Lufthansa Logo
11:22 am - 8:10 amSTL-LIS
14h 48m1 stop
Lufthansa Logo
10:15 am - 12:05 amLIS-STL
19h 50m1 stop
$456Lufthansa
Find Deal
Tue, Feb 3 - Fri, Feb 13
Multiple Airlines Logo
4:05 pm - 9:20 amSTL-LIS
11h 15m1 stop
Multiple Airlines Logo
5:00 am - 1:55 pmLIS-STL
14h 55m1 stop
$458Multiple Airlines
Find Deal
Mon, Feb 23 - Sun, Mar 1

British Airways flights from St. Louis to Lisbon

Our best British Airways deals on St. Louis to Lisbon flight tickets
British Airways
Jan 11
STL2:54 pmLambert-St Louis
17h 56m
2 stops
LIS2:50 pmLisbon Humberto Delgado
Jan 27
LIS11:05 amLisbon Humberto Delgado
17h 39m
1 stop
STL10:44 pmLambert-St Louis
$444
Find similar
British Airways
Feb 1
STL12:01 pmLambert-St Louis
18h 04m
2 stops
LIS12:05 pmLisbon Humberto Delgado
Feb 10
LIS11:05 amLisbon Humberto Delgado
17h 39m
1 stop
STL10:44 pmLambert-St Louis
$446
Find similar
British Airways
Jan 8
STL12:11 pmLambert-St Louis
17h 59m
2 stops
LIS12:10 pmLisbon Humberto Delgado
Jan 21
LIS11:05 amLisbon Humberto Delgado
17h 39m
1 stop
STL10:44 pmLambert-St Louis
$471
Find similar

Lufthansa flights from St. Louis to Lisbon

Our best Lufthansa deals on St. Louis to Lisbon flight tickets
Lufthansa
Feb 24
STL11:39 amLambert-St Louis
14h 31m
1 stop
LIS8:10 amLisbon Humberto Delgado
Mar 3
LIS11:55 amLisbon Humberto Delgado
14h 28m
1 stop
STL8:23 pmLambert-St Louis
$452
Find similar
Lufthansa
Feb 3
STL11:22 amLambert-St Louis
14h 48m
1 stop
LIS8:10 amLisbon Humberto Delgado
Feb 13
LIS10:15 amLisbon Humberto Delgado
19h 50m
1 stop
STL12:05 amLambert-St Louis
$456
Find similar
Lufthansa
Dec 8
STL7:00 amLambert-St Louis
19h 10m
1 stop
LIS8:10 amLisbon Humberto Delgado
Dec 24
LIS11:55 amLisbon Humberto Delgado
13h 27m
1 stop
STL7:22 pmLambert-St Louis
$460
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 2, 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 1/11

2:54 pm-2:50 pm

2 stops17h 56m

Lisbon Humberto Delgado

Tue 1/27

6:30 am-6:34 pm

2 stops18h 04m

$443

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/11

2:54 pm-2:50 pm

2 stops17h 56m

Lisbon Humberto Delgado

Tue 1/27

11:05 am-10:44 pm

1 stop17h 39m

$444

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/11

11:55 am-9:05 am

2 stops15h 10m

Lisbon Humberto Delgado

Tue 1/27

6:30 am-6:16 pm

2 stops17h 46m

$445

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 2/1

12:01 pm-12:05 pm

2 stops18h 04m

Lisbon Humberto Delgado

Tue 2/10

11:05 am-10:44 pm

1 stop17h 39m

$446

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/31

6:29 am-8:00 am

2 stops19h 31m

Lisbon Humberto Delgado

Thu 1/15

10:00 am-12:33 pm

1 stop32h 33m

$447

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 2/1

2:54 pm-12:05 pm

2 stops15h 11m

Lisbon Humberto Delgado

Tue 2/10

8:20 am-9:15 pm

2 stops18h 55m

$451

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 2/24

11:39 am-8:10 am

1 stop14h 31m

Lisbon Humberto Delgado

Tue 3/3

11:55 am-8:23 pm

1 stop14h 28m

$452

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 2/2

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Fri 2/13

10:55 am-3:29 pm

1 stop34h 34m

$454

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 2/3

11:22 am-8:10 am

1 stop14h 48m

Lisbon Humberto Delgado

Fri 2/13

10:15 am-12:05 am

1 stop19h 50m

$456

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 2/23

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Sun 3/1

5:00 am-1:55 pm

1 stop14h 55m

$458

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 typical price of a round-trip flight between St. Louis and Lisbon?

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 $981 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.

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

10h 30m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 10h 30m
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 50m.

  • 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 $544Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
United AirlinesPriceFrom $605Free CancellationRating
7.4
9,064 reviews
Search United Airlines flights
IberiaPriceFrom $649Free CancellationRating
7.0
3,038 reviews
Search Iberia flights
LufthansaPriceFrom $682Free CancellationRating
6.8
7,602 reviews
Search Lufthansa flights
DeltaPriceFrom $718Free CancellationRating
7.9
8,009 reviews
Search Delta flights
British AirwaysPriceFrom $733Free CancellationRating
6.7
7,549 reviews
Search British Airways flights
Air CanadaPriceFrom $819Free CancellationRating
7.1
10,493 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
Oeiras
Setúbal
Peniche
Estoril
Leiria
Sesimbra
Tomar
Almada
Evora
Zambujeira do Mar
Figueira da Foz
Batalha
Comporta
Torres Vedras
Óbidos
Sines

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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