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Cheap flights from St. Louis to Lisbon from $397

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 8/8. 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.
Multiple Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m
1 stop
Multiple Airlines Logo
5:00 am - 1:45 pm
LIS
-
STL
14h 45m
1 stop
$709Multiple Airlines
Sun, Nov 1 - Wed, Nov 11
United Airlines Logo
6:00 am - 8:10 am
STL
-
LIS
20h 10m
1 stop
United Airlines Logo
5:00 am - 1:45 pm
LIS
-
STL
14h 45m
1 stop
$724United Airlines
Sun, Nov 1 - Wed, Nov 18
United Airlines Logo
6:00 am - 8:10 am
STL
-
LIS
20h 10m
1 stop
United Airlines Logo
12:50 pm - 12:06 pm
LIS
-
STL
29h 16m
2 stops
$726United Airlines
Sun, Nov 1 - Tue, Nov 17
United Airlines Logo
9:40 am - 10:40 am
STL
-
LIS
19h 00m
2 stops
United Airlines Logo
5:00 am - 1:45 pm
LIS
-
STL
14h 45m
1 stop
$727United Airlines
Mon, Nov 2 - Fri, Nov 13
United Airlines Logo
9:40 am - 8:10 am
STL
-
LIS
16h 30m
2 stops
United Airlines Logo
5:00 am - 1:45 pm
LIS
-
STL
14h 45m
1 stop
$728United Airlines
Tue, Nov 3 - Fri, Nov 13
Air Canada Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m
1 stop
Air Canada Logo
8:55 am - 2:30 pm
LIS
-
STL
35h 35m
2 stops
$729Air Canada
Sun, Nov 1 - Thu, Nov 19
United Airlines Logo
4:56 pm - 8:10 am
STL
-
LIS
33h 14m
1 stop
United Airlines Logo
11:20 am - 3:26 pm
LIS
-
STL
34h 06m
1 stop
$732United Airlines
Mon, Nov 2 - Tue, Nov 17
Air Canada Logo
7:04 pm - 9:20 am
STL
-
LIS
33h 16m
2 stops
Air Canada Logo
11:20 am - 4:56 pm
LIS
-
STL
35h 36m
2 stops
$734Air Canada
Sat, Oct 31 - Fri, Nov 13
Multiple Airlines Logo
2:00 pm - 11:20 am
STL
-
LIS
15h 20m
2 stops
Multiple Airlines Logo
5:00 am - 4:50 pm
LIS
-
STL
17h 50m
2 stops
$739Multiple Airlines
Wed, Nov 4 - Tue, Nov 10
United Airlines Logo
7:30 am - 8:10 am
STL
-
LIS
18h 40m
1 stop
United Airlines Logo
12:25 pm - 1:45 pm
LIS
-
STL
31h 20m
1 stop
$743United Airlines
Wed, Nov 4 - Tue, Nov 10

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Lufthansa flights from St. Louis to Lisbon

Our best Lufthansa deals on St. Louis to Lisbon flight tickets
Lufthansa
Oct 19
STL1:29 pmLambert-St Louis
18h 11m
2 stops
LIS1:40 pmLisbon Humberto Delgado
Oct 28
LIS5:00 amLisbon Humberto Delgado
14h 45m
1 stop
STL2:45 pmLambert-St Louis
$750
Lufthansa
Oct 19
STL1:29 pmLambert-St Louis
18h 11m
2 stops
LIS1:40 pmLisbon Humberto Delgado
Oct 28
LIS5:00 amLisbon Humberto Delgado
14h 45m
1 stop
STL2:45 pmLambert-St Louis
$752
Lufthansa
Oct 19
STL1:29 pmLambert-St Louis
18h 11m
2 stops
LIS1:40 pmLisbon Humberto Delgado
Oct 28
LIS5:00 amLisbon Humberto Delgado
23h 09m
2 stops
STL11:09 pmLambert-St Louis
$757

United Airlines flights from St. Louis to Lisbon

Our best United Airlines deals on St. Louis to Lisbon flight tickets
United Airlines
Nov 1
STL6:00 amLambert-St Louis
20h 10m
1 stop
LIS8:10 amLisbon Humberto Delgado
Nov 18
LIS5:00 amLisbon Humberto Delgado
14h 45m
1 stop
STL1:45 pmLambert-St Louis
$724
United Airlines
Nov 1
STL6:00 amLambert-St Louis
20h 10m
1 stop
LIS8:10 amLisbon Humberto Delgado
Nov 17
LIS12:50 pmLisbon Humberto Delgado
29h 16m
2 stops
STL12:06 pmLambert-St Louis
$726
United Airlines
Nov 2
STL9:40 amLambert-St Louis
19h 00m
2 stops
LIS10:40 amLisbon Humberto Delgado
Nov 13
LIS5:00 amLisbon Humberto Delgado
14h 45m
1 stop
STL1:45 pmLambert-St Louis
$727

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 July 11, 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
Quickest round-trip

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 11/1

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Wed 11/11

5:00 am-1:45 pm

1 stop14h 45m

$709

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 11/1

6:00 am-8:10 am

1 stop20h 10m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-1:45 pm

1 stop14h 45m

$724

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 11/1

6:00 am-8:10 am

1 stop20h 10m

Lisbon Humberto Delgado

Tue 11/17

12:50 pm-12:06 pm

2 stops29h 16m

$726

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 11/2

9:40 am-10:40 am

2 stops19h 00m

Lisbon Humberto Delgado

Fri 11/13

5:00 am-1:45 pm

1 stop14h 45m

$727

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 11/3

9:40 am-8:10 am

2 stops16h 30m

Lisbon Humberto Delgado

Fri 11/13

5:00 am-1:45 pm

1 stop14h 45m

$728

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 11/1

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Thu 11/19

8:55 am-2:30 pm

2 stops35h 35m

$729

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 11/2

4:56 pm-8:10 am

1 stop33h 14m

Lisbon Humberto Delgado

Tue 11/17

11:20 am-3:26 pm

1 stop34h 06m

$732

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 10/31

7:04 pm-9:20 am

2 stops33h 16m

Lisbon Humberto Delgado

Fri 11/13

11:20 am-4:56 pm

2 stops35h 36m

$734

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

2:00 pm-11:20 am

2 stops15h 20m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-4:50 pm

2 stops17h 50m

$739

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

12:25 pm-1:45 pm

1 stop31h 20m

$743

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $587. 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 $1,057 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 $746 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

12h 10m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 12h 10m
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 12h 10m.

  • 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 $502Free CancellationRating
7.1
11,804 reviews
Search American Airlines flights
KLMPriceFrom $513Free CancellationRating
7.8
1,537 reviews
Search KLM flights
DeltaPriceFrom $558Free CancellationRating
7.8
8,459 reviews
Search Delta flights
British AirwaysPriceFrom $574Free CancellationRating
6.7
8,107 reviews
Search British Airways flights
LufthansaPriceFrom $606Free CancellationRating
6.8
8,128 reviews
Search Lufthansa flights
United AirlinesPriceFrom $617Free CancellationRating
7.4
9,980 reviews
Search United Airlines flights
Air CanadaPriceFrom $649Free CancellationRating
7.1
11,328 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
Figueira da Foz
Estoril
Evora
Oeiras
Leiria
Peniche
Batalha
Óbidos
Sesimbra
Zambujeira do Mar
Costa da Caparica
Tomar
Sines
Torres Vedras
Comporta

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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