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Cheap flights from St. Louis to Lisbon from $334

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 10/12. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
6:30 am - 8:10 am
STL
-
LIS
19h 40m
1 stop
United Airlines Logo
11:20 am - 4:40 pm
LIS
-
STL
35h 20m
2 stops
$779United Airlines
Wed, Nov 4 - Tue, Nov 10
United Airlines Logo
11:45 am - 8:10 am
STL
-
LIS
14h 25m
1 stop
United Airlines Logo
11:20 am - 4:40 pm
LIS
-
STL
35h 20m
2 stops
$780United Airlines
Wed, Nov 4 - Tue, Nov 10
Air Canada Logo
9:23 am - 9:50 am
STL
-
LIS
18h 27m
2 stops
Air Canada Logo
11:20 am - 2:18 pm
LIS
-
STL
32h 58m
2 stops
$783Air Canada
Mon, Nov 16 - Wed, Nov 18
United Airlines Logo
9:23 am - 8:10 am
STL
-
LIS
16h 47m
2 stops
United Airlines Logo
11:20 am - 4:40 pm
LIS
-
STL
35h 20m
2 stops
$784United Airlines
Wed, Nov 4 - Tue, Nov 10
Multiple Airlines Logo
5:20 pm - 8:10 am
STL
-
LIS
32h 50m
1 stop
Multiple Airlines Logo
11:20 am - 10:27 am
LIS
-
STL
29h 07m
2 stops
$785Multiple Airlines
Sat, Nov 14 - Tue, Nov 24
Multiple Airlines Logo
5:20 pm - 8:10 am
STL
-
LIS
32h 50m
1 stop
Multiple Airlines Logo
11:20 am - 12:20 pm
LIS
-
STL
31h 00m
2 stops
$786Multiple Airlines
Sat, Nov 14 - Tue, Nov 24
United Airlines Logo
7:30 am - 8:10 am
STL
-
LIS
18h 40m
1 stop
United Airlines Logo
5:00 am - 10:54 pm
LIS
-
STL
23h 54m
2 stops
$787United Airlines
Wed, Nov 4 - Tue, Nov 10
United Airlines Logo
4:17 pm - 8:10 am
STL
-
LIS
33h 53m
2 stops
United Airlines Logo
1:00 pm - 7:25 pm
LIS
-
STL
36h 25m
2 stops
$789United Airlines
Sat, Nov 14 - Tue, Nov 24
United Airlines Logo
8:25 am - 8:10 am
STL
-
LIS
17h 45m
2 stops
United Airlines Logo
5:00 am - 10:54 pm
LIS
-
STL
23h 54m
2 stops
$792United Airlines
Wed, Nov 4 - Tue, Nov 10
KLM Logo
11:51 am - 8:00 am
STL
-
LIS
14h 09m
2 stops
KLM Logo
5:00 am - 4:50 pm
LIS
-
STL
17h 50m
2 stops
$793KLM
Wed, Nov 4 - Tue, Nov 10

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KLM flights from St. Louis to Lisbon

Our best KLM deals on St. Louis to Lisbon flight tickets
KLM
Nov 4
STL11:51 amLambert-St Louis
14h 09m
2 stops
LIS8:00 amLisbon Humberto Delgado
Nov 10
LIS5:00 amLisbon Humberto Delgado
17h 50m
2 stops
STL4:50 pmLambert-St Louis
$793
KLM
Nov 5
STL11:51 amLambert-St Louis
15h 09m
2 stops
LIS9:00 amLisbon Humberto Delgado
Nov 7
LIS9:40 amLisbon Humberto Delgado
16h 57m
2 stops
STL8:37 pmLambert-St Louis
$893

Air Canada flights from St. Louis to Lisbon

Our best Air Canada deals on St. Louis to Lisbon flight tickets
Air Canada
Nov 16
STL9:23 amLambert-St Louis
18h 27m
2 stops
LIS9:50 amLisbon Humberto Delgado
Nov 18
LIS11:20 amLisbon Humberto Delgado
32h 58m
2 stops
STL2:18 pmLambert-St Louis
$783
Air Canada
Oct 19
STL12:10 pmLambert-St Louis
15h 10m
1 stop
LIS9:20 amLisbon Humberto Delgado
Oct 28
LIS11:20 amLisbon Humberto Delgado
33h 18m
2 stops
STL3:38 pmLambert-St Louis
$851
Air Canada
Oct 19
STL8:00 amLambert-St Louis
19h 20m
2 stops
LIS9:20 amLisbon Humberto Delgado
Oct 28
LIS11:20 amLisbon Humberto Delgado
31h 58m
2 stops
STL2:18 pmLambert-St Louis
$856

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 June 10, 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

Cheapest round-trip

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

6:30 am-8:10 am

1 stop19h 40m

Lisbon Humberto Delgado

Tue 11/10

11:20 am-4:40 pm

2 stops35h 20m

$779

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

11:45 am-8:10 am

1 stop14h 25m

Lisbon Humberto Delgado

Tue 11/10

11:20 am-4:40 pm

2 stops35h 20m

$780

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 11/16

9:23 am-9:50 am

2 stops18h 27m

Lisbon Humberto Delgado

Wed 11/18

11:20 am-2:18 pm

2 stops32h 58m

$783

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

9:23 am-8:10 am

2 stops16h 47m

Lisbon Humberto Delgado

Tue 11/10

11:20 am-4:40 pm

2 stops35h 20m

$784

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 11/14

5:20 pm-8:10 am

1 stop32h 50m

Lisbon Humberto Delgado

Tue 11/24

11:20 am-10:27 am

2 stops29h 07m

$785

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 11/14

5:20 pm-8:10 am

1 stop32h 50m

Lisbon Humberto Delgado

Tue 11/24

11:20 am-12:20 pm

2 stops31h 00m

$786

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

7:30 am-8:10 am

1 stop18h 40m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-10:54 pm

2 stops23h 54m

$787

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 11/14

4:17 pm-8:10 am

2 stops33h 53m

Lisbon Humberto Delgado

Tue 11/24

1:00 pm-7:25 pm

2 stops36h 25m

$789

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

8:25 am-8:10 am

2 stops17h 45m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-10:54 pm

2 stops23h 54m

$792
Quickest round-trip

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

11:51 am-8:00 am

2 stops14h 09m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-4:50 pm

2 stops17h 50m

$793

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, April 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 $589. If you are unable to visit Lisbon during the month of April, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $626.

How far in advance should I book a flight from St. Louis 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 $1,050 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 $708 on momondo.

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

You could potentially save up to 7% 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 25m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 11h 25m
There are no direct flights from St. Louis to Lisbon. There are no popular flight routes from St. Louis to Lisbon.
Search flight deals

Frequently asked questions about flying from St. Louis to Lisbon

  • 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 25m.

  • 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
7.1
11,636 reviews
Search American Airlines flights
KLMPriceFrom $513Free CancellationRating
7.8
1,527 reviews
Search KLM flights
DeltaPriceFrom $558Free CancellationRating
7.9
8,397 reviews
Search Delta flights
IberiaPriceFrom $571Free CancellationRating
7.0
3,232 reviews
Search Iberia flights
British AirwaysPriceFrom $574Free CancellationRating
6.7
8,036 reviews
Search British Airways flights
LufthansaPriceFrom $606Free CancellationRating
6.8
8,053 reviews
Search Lufthansa flights
United AirlinesPriceFrom $617Free CancellationRating
7.4
9,808 reviews
Search United Airlines flights
Air CanadaPriceFrom $674Free CancellationRating
7.1
11,154 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
Fátima
Ericeira
Nazaré
Estoril
Setúbal
Peniche
Evora
Oeiras
Leiria
Figueira da Foz
Sesimbra
Batalha
Óbidos
Zambujeira do Mar
Costa da Caparica
Tomar
Comporta
Sines
Torres Vedras

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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