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Cheap flights from St. Louis to Lisbon from $395

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 6/1. 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.
Finnair Logo
5:21 pm - 11:25 pm
STL
-
LIS
24h 04m
2 stops
Finnair Logo
6:35 am - 10:19 pm
LIS
-
STL
21h 44m
2 stops
$508Finnair
Mon, Apr 20 - Sun, May 10
Iberia Logo
12:25 pm - 11:50 am
STL
-
LIS
17h 25m
2 stops
Iberia Logo
8:25 am - 10:17 pm
LIS
-
STL
19h 52m
2 stops
$520Iberia
Mon, Apr 13 - Mon, Apr 20
Iberia Logo
12:55 pm - 11:50 am
STL
-
LIS
16h 55m
2 stops
Iberia Logo
8:25 am - 10:19 pm
LIS
-
STL
19h 54m
2 stops
$528Iberia
Wed, Apr 15 - Tue, Apr 21
British Airways Logo
11:45 am - 11:00 pm
STL
-
LIS
29h 15m
2 stops
British Airways Logo
11:05 am - 7:29 pm
LIS
-
STL
14h 24m
1 stop
$534British Airways
Tue, Apr 7 - Tue, Apr 21
British Airways Logo
11:45 am - 11:00 pm
STL
-
LIS
29h 15m
2 stops
British Airways Logo
7:10 am - 7:30 pm
LIS
-
STL
18h 20m
1 stop
$538British Airways
Tue, Apr 7 - Tue, Apr 21
British Airways Logo
1:29 pm - 9:05 am
STL
-
LIS
13h 36m
1 stop
British Airways Logo
6:50 pm - 4:41 pm
LIS
-
STL
27h 51m
2 stops
$540British Airways
Wed, Apr 15 - Sun, Apr 19
American Airlines Logo
8:03 pm - 5:45 pm
STL
-
LIS
15h 42m
2 stops
American Airlines Logo
7:20 am - 7:29 pm
LIS
-
STL
18h 09m
2 stops
$543American Airlines
Sun, Apr 12 - Sun, Apr 19
British Airways Logo
5:53 pm - 11:00 pm
STL
-
LIS
23h 07m
2 stops
British Airways Logo
4:30 pm - 7:30 pm
LIS
-
STL
33h 00m
1 stop
$544British Airways
Tue, Apr 14 - Tue, Apr 28
Multiple Airlines Logo
12:55 pm - 11:50 am
STL
-
LIS
16h 55m
2 stops
Multiple Airlines Logo
7:10 am - 7:30 pm
LIS
-
STL
18h 20m
1 stop
$546Multiple Airlines
Wed, Apr 15 - Tue, Apr 21
Multiple Airlines Logo
5:59 pm - 2:55 pm
STL
-
LIS
14h 56m
2 stops
Multiple Airlines Logo
9:20 am - 8:44 pm
LIS
-
STL
17h 24m
2 stops
$551Multiple Airlines
Tue, Apr 7 - Tue, Apr 21

Iberia flights from St. Louis to Lisbon

Our best Iberia deals on St. Louis to Lisbon flight tickets
Iberia
Apr 13
STL12:25 pmLambert-St Louis
17h 25m
2 stops
LIS11:50 amLisbon Humberto Delgado
Apr 20
LIS8:25 amLisbon Humberto Delgado
19h 52m
2 stops
STL10:17 pmLambert-St Louis
$520
Iberia
Apr 15
STL12:55 pmLambert-St Louis
16h 55m
2 stops
LIS11:50 amLisbon Humberto Delgado
Apr 21
LIS8:25 amLisbon Humberto Delgado
19h 54m
2 stops
STL10:19 pmLambert-St Louis
$528
Iberia
Apr 22
STL2:32 pmLambert-St Louis
23h 33m
2 stops
LIS8:05 pmLisbon Humberto Delgado
May 15
LIS6:35 amLisbon Humberto Delgado
42h 55m
2 stops
STL7:30 pmLambert-St Louis
$609

British Airways flights from St. Louis to Lisbon

Our best British Airways deals on St. Louis to Lisbon flight tickets
British Airways
Apr 7
STL11:45 amLambert-St Louis
29h 15m
2 stops
LIS11:00 pmLisbon Humberto Delgado
Apr 21
LIS11:05 amLisbon Humberto Delgado
14h 24m
1 stop
STL7:29 pmLambert-St Louis
$534
British Airways
Apr 7
STL11:45 amLambert-St Louis
29h 15m
2 stops
LIS11:00 pmLisbon Humberto Delgado
Apr 21
LIS7:10 amLisbon Humberto Delgado
18h 20m
1 stop
STL7:30 pmLambert-St Louis
$538
British Airways
Apr 15
STL1:29 pmLambert-St Louis
13h 36m
1 stop
LIS9:05 amLisbon Humberto Delgado
Apr 19
LIS6:50 pmLisbon Humberto Delgado
27h 51m
2 stops
STL4:41 pmLambert-St Louis
$540

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 February 28, 2026.
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

Mon 4/20

5:21 pm-11:25 pm

2 stops24h 04m

Lisbon Humberto Delgado

Sun 5/10

6:35 am-10:19 pm

2 stops21h 44m

$508

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/13

12:25 pm-11:50 am

2 stops17h 25m

Lisbon Humberto Delgado

Mon 4/20

8:25 am-10:17 pm

2 stops19h 52m

$520

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

12:55 pm-11:50 am

2 stops16h 55m

Lisbon Humberto Delgado

Tue 4/21

8:25 am-10:19 pm

2 stops19h 54m

$528

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/7

11:45 am-11:00 pm

2 stops29h 15m

Lisbon Humberto Delgado

Tue 4/21

11:05 am-7:29 pm

1 stop14h 24m

$534

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/7

11:45 am-11:00 pm

2 stops29h 15m

Lisbon Humberto Delgado

Tue 4/21

7:10 am-7:30 pm

1 stop18h 20m

$538

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

1:29 pm-9:05 am

1 stop13h 36m

Lisbon Humberto Delgado

Sun 4/19

6:50 pm-4:41 pm

2 stops27h 51m

$540

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/12

8:03 pm-5:45 pm

2 stops15h 42m

Lisbon Humberto Delgado

Sun 4/19

7:20 am-7:29 pm

2 stops18h 09m

$543

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/14

5:53 pm-11:00 pm

2 stops23h 07m

Lisbon Humberto Delgado

Tue 4/28

4:30 pm-7:30 pm

1 stop33h 00m

$544

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

12:55 pm-11:50 am

2 stops16h 55m

Lisbon Humberto Delgado

Tue 4/21

7:10 am-7:30 pm

1 stop18h 20m

$546

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/7

5:59 pm-2:55 pm

2 stops14h 56m

Lisbon Humberto Delgado

Tue 4/21

9:20 am-8:44 pm

2 stops17h 24m

$551

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 $617. If you are unable to visit Lisbon during the month of January, then departing from St. Louis during the month April is also very affordable. Most momondo users find prices during this month for around $686.

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 week ahead of your departure date. In general, you can expect to find flights to Lisbon for around $1,050 when searching week 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 $735 on momondo.

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

You could potentially save up to 33% 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

15h 05m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 15h 05m
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 15h 05m.

  • 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
British AirwaysPriceFrom $458Free CancellationRating
6.7
7,772 reviews
Search British Airways flights
American AirlinesPriceFrom $505Free CancellationRating
7.1
11,367 reviews
Search American Airlines flights
DeltaPriceFrom $558Free CancellationRating
7.9
8,246 reviews
Search Delta flights
IberiaPriceFrom $571Free CancellationRating
7.0
3,127 reviews
Search Iberia flights
United AirlinesPriceFrom $617Free CancellationRating
7.4
9,365 reviews
Search United Airlines flights
LufthansaPriceFrom $626Free CancellationRating
6.8
7,817 reviews
Search Lufthansa flights
Air CanadaPriceFrom $702Free CancellationRating
7.1
10,757 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
Estoril
Peniche
Evora
Oeiras
Sesimbra
Leiria
Figueira da Foz
Tomar
Zambujeira do Mar
Batalha
Óbidos
Sines
Comporta
Torres Vedras
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.

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