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Cheap flights from St. Louis to Lisbon from $364

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 3/7. 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.
United Airlines Logo
1:11 pm - 8:10 am
STL
-
LIS
12h 59m
2 stops
United Airlines Logo
5:00 am - 6:00 pm
LIS
-
STL
18h 00m
2 stops
$496United Airlines
Tue, Mar 3 - Tue, Mar 10
British Airways Logo
2:00 pm - 9:05 am
STL
-
LIS
13h 05m
1 stop
British Airways Logo
11:05 am - 11:02 pm
LIS
-
STL
16h 57m
1 stop
$505British Airways
Tue, Mar 3 - Tue, Mar 10
British Airways Logo
6:11 pm - 11:10 pm
STL
-
LIS
22h 59m
2 stops
British Airways Logo
4:30 pm - 7:33 pm
LIS
-
STL
33h 03m
2 stops
$509British Airways
Mon, Apr 20 - Fri, May 1
British Airways Logo
6:11 pm - 11:10 pm
STL
-
LIS
22h 59m
2 stops
British Airways Logo
6:55 pm - 10:14 pm
LIS
-
STL
33h 19m
2 stops
$511British Airways
Mon, Apr 20 - Fri, May 1
British Airways Logo
9:40 pm - 10:05 am
STL
-
LIS
30h 25m
1 stop
British Airways Logo
4:25 pm - 7:33 pm
LIS
-
STL
33h 08m
2 stops
$512British Airways
Sun, Apr 26 - Sat, May 2
British Airways Logo
9:40 pm - 11:05 pm
STL
-
LIS
19h 25m
1 stop
British Airways Logo
6:55 pm - 7:33 pm
LIS
-
STL
30h 38m
2 stops
$513British Airways
Sun, Apr 26 - Sat, May 2
British Airways Logo
1:29 pm - 9:05 am
STL
-
LIS
13h 36m
1 stop
British Airways Logo
6:55 pm - 8:09 pm
LIS
-
STL
31h 14m
2 stops
$520British Airways
Fri, Apr 10 - Fri, Apr 17
British Airways Logo
8:03 pm - 11:05 pm
STL
-
LIS
21h 02m
2 stops
British Airways Logo
6:55 pm - 4:41 pm
LIS
-
STL
27h 46m
2 stops
$540British Airways
Sun, Apr 26 - Sat, May 2
Finnair Logo
4:46 pm - 11:25 pm
STL
-
LIS
24h 39m
2 stops
Finnair Logo
6:55 pm - 10:14 pm
LIS
-
STL
33h 19m
2 stops
$543Finnair
Sun, Apr 26 - Sat, May 2
United Airlines Logo
8:30 am - 10:15 am
STL
-
LIS
19h 45m
1 stop
United Airlines Logo
5:00 am - 9:07 pm
LIS
-
STL
21h 07m
2 stops
$546United Airlines
Sun, Mar 1 - Tue, Mar 17

Iberia flights from St. Louis to Lisbon

Our best Iberia deals on St. Louis to Lisbon flight tickets
Iberia
Feb 23
STL2:00 pmLambert-St Louis
13h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
Mar 2
LIS8:45 pmLisbon Humberto Delgado
18h 10m
2 stops
STL8:55 amLambert-St Louis
$551
Iberia
Feb 23
STL2:00 pmLambert-St Louis
13h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
Mar 2
LIS8:45 pmLisbon Humberto Delgado
20h 16m
2 stops
STL11:01 amLambert-St Louis
$558

British Airways flights from St. Louis to Lisbon

Our best British Airways deals on St. Louis to Lisbon flight tickets
British Airways
Mar 3
STL2:00 pmLambert-St Louis
13h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
Mar 10
LIS11:05 amLisbon Humberto Delgado
16h 57m
1 stop
STL11:02 pmLambert-St Louis
$505
British Airways
Apr 20
STL6:11 pmLambert-St Louis
22h 59m
2 stops
LIS11:10 pmLisbon Humberto Delgado
May 1
LIS6:55 pmLisbon Humberto Delgado
31h 14m
2 stops
STL8:09 pmLambert-St Louis
$509
British Airways
Apr 20
STL6:11 pmLambert-St Louis
22h 59m
2 stops
LIS11:10 pmLisbon Humberto Delgado
May 1
LIS6:55 pmLisbon Humberto Delgado
33h 19m
2 stops
STL10:14 pmLambert-St Louis
$511

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 5, 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

Tue 3/3

1:11 pm-8:10 am

2 stops12h 59m

Lisbon Humberto Delgado

Tue 3/10

5:00 am-6:00 pm

2 stops18h 00m

$496

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 3/3

2:00 pm-9:05 am

1 stop13h 05m

Lisbon Humberto Delgado

Tue 3/10

11:05 am-11:02 pm

1 stop16h 57m

$505

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

6:11 pm-11:10 pm

2 stops22h 59m

Lisbon Humberto Delgado

Fri 5/1

4:30 pm-7:33 pm

2 stops33h 03m

$509

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

6:11 pm-11:10 pm

2 stops22h 59m

Lisbon Humberto Delgado

Fri 5/1

6:55 pm-10:14 pm

2 stops33h 19m

$511

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/26

9:40 pm-10:05 am

1 stop30h 25m

Lisbon Humberto Delgado

Sat 5/2

4:25 pm-7:33 pm

2 stops33h 08m

$512

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/26

9:40 pm-11:05 pm

1 stop19h 25m

Lisbon Humberto Delgado

Sat 5/2

6:55 pm-7:33 pm

2 stops30h 38m

$513

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 4/10

1:29 pm-9:05 am

1 stop13h 36m

Lisbon Humberto Delgado

Fri 4/17

6:55 pm-8:09 pm

2 stops31h 14m

$520

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/26

8:03 pm-11:05 pm

2 stops21h 02m

Lisbon Humberto Delgado

Sat 5/2

6:55 pm-4:41 pm

2 stops27h 46m

$540

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/26

4:46 pm-11:25 pm

2 stops24h 39m

Lisbon Humberto Delgado

Sat 5/2

6:55 pm-10:14 pm

2 stops33h 19m

$543

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 3/1

8:30 am-10:15 am

1 stop19h 45m

Lisbon Humberto Delgado

Tue 3/17

5:00 am-9:07 pm

2 stops21h 07m

$546

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, 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 November is also very affordable. Most momondo users find prices during this month for around $764.

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 $1,078 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 11% 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

17h 05m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 17h 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 17h 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
American AirlinesPriceFrom $505Free CancellationRating
7.2
11,243 reviews
Search American Airlines flights
IberiaPriceFrom $571Free CancellationRating
7.0
3,104 reviews
Search Iberia flights
LufthansaPriceFrom $606Free CancellationRating
6.8
7,762 reviews
Search Lufthansa flights
United AirlinesPriceFrom $622Free CancellationRating
7.4
9,242 reviews
Search United Airlines flights
DeltaPriceFrom $653Free CancellationRating
7.9
8,157 reviews
Search Delta flights
Air CanadaPriceFrom $721Free CancellationRating
7.1
10,696 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
Leiria
Sesimbra
Tomar
Figueira da Foz
Zambujeira do Mar
Batalha
Óbidos
Comporta
Torres Vedras
Sines
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.

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