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Cheap flights from St. Louis to Lisbon from $434

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 5/28. 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.
American Airlines Logo
8:03 pm - 5:55 pm
STL
-
LIS
15h 52m
2 stops
American Airlines Logo
8:25 am - 7:33 pm
LIS
-
STL
17h 08m
2 stops
$716American Airlines
Mon, Apr 27 - Mon, May 4
American Airlines Logo
6:29 am - 9:05 am
STL
-
LIS
20h 36m
1 stop
American Airlines Logo
8:25 am - 7:33 pm
LIS
-
STL
17h 08m
2 stops
$720American Airlines
Mon, Apr 27 - Mon, May 4
KLM Logo
11:42 am - 10:45 am
STL
-
LIS
17h 03m
2 stops
KLM Logo
5:00 am - 4:42 pm
LIS
-
STL
17h 42m
2 stops
$758KLM
Mon, Apr 13 - Wed, Apr 29
Multiple Airlines Logo
11:42 am - 8:50 am
STL
-
LIS
15h 08m
2 stops
Multiple Airlines Logo
5:00 am - 5:44 pm
LIS
-
STL
18h 44m
2 stops
$769Multiple Airlines
Wed, Apr 15 - Tue, Apr 21
British Airways Logo
1:29 pm - 9:05 am
STL
-
LIS
13h 36m
1 stop
British Airways Logo
11:05 am - 7:29 pm
LIS
-
STL
14h 24m
1 stop
$771British Airways
Wed, Apr 15 - Tue, Apr 21
Delta Logo
6:50 pm - 6:45 pm
STL
-
LIS
17h 55m
2 stops
Delta Logo
5:00 am - 5:44 pm
LIS
-
STL
18h 44m
2 stops
$773Delta
Wed, Apr 15 - Tue, Apr 21
Delta Logo
6:50 pm - 6:45 pm
STL
-
LIS
17h 55m
2 stops
Delta Logo
11:55 am - 11:36 pm
LIS
-
STL
17h 41m
2 stops
$774Delta
Wed, Apr 15 - Tue, Apr 21
Multiple Airlines Logo
1:29 pm - 9:05 am
STL
-
LIS
13h 36m
1 stop
Multiple Airlines Logo
6:35 am - 7:30 pm
LIS
-
STL
18h 55m
2 stops
$775Multiple Airlines
Wed, Apr 15 - Tue, Apr 21
American Airlines Logo
1:29 pm - 9:05 am
STL
-
LIS
13h 36m
1 stop
American Airlines Logo
11:05 am - 11:46 pm
LIS
-
STL
18h 41m
2 stops
$780American Airlines
Wed, Apr 15 - Tue, Apr 21
American Airlines Logo
6:29 am - 9:05 am
STL
-
LIS
20h 36m
1 stop
American Airlines Logo
11:00 am - 7:30 pm
LIS
-
STL
14h 30m
1 stop
$781American Airlines
Mon, Apr 13 - Wed, Apr 29

American Airlines flights from St. Louis to Lisbon

Our best American Airlines deals on St. Louis to Lisbon flight tickets
American Airlines
Apr 27
STL8:03 pmLambert-St Louis
15h 52m
2 stops
LIS5:55 pmLisbon Humberto Delgado
May 4
LIS8:25 amLisbon Humberto Delgado
17h 08m
2 stops
STL7:33 pmLambert-St Louis
$716
American Airlines
Apr 27
STL6:29 amLambert-St Louis
20h 36m
1 stop
LIS9:05 amLisbon Humberto Delgado
May 4
LIS8:25 amLisbon Humberto Delgado
17h 08m
2 stops
STL7:33 pmLambert-St Louis
$720
American Airlines
Apr 8
STL5:21 pmLambert-St Louis
16h 19m
2 stops
LIS3:40 pmLisbon Humberto Delgado
Apr 15
LIS8:55 amLisbon Humberto Delgado
16h 38m
2 stops
STL7:33 pmLambert-St Louis
$764

Air Canada flights from St. Louis to Lisbon

Our best Air Canada deals on St. Louis to Lisbon flight tickets
Air Canada
Apr 5
STL4:05 pmLambert-St Louis
12h 55m
1 stop
LIS11:00 amLisbon Humberto Delgado
May 1
LIS11:25 amLisbon Humberto Delgado
35h 14m
2 stops
STL4:39 pmLambert-St Louis
$807
Air Canada
Apr 5
STL10:00 amLambert-St Louis
19h 00m
2 stops
LIS11:00 amLisbon Humberto Delgado
May 6
LIS12:55 pmLisbon Humberto Delgado
29h 11m
1 stop
STL12:06 pmLambert-St Louis
$830
Air Canada
Aug 12
STL12:10 pmLambert-St Louis
15h 10m
1 stop
LIS9:20 amLisbon Humberto Delgado
Aug 25
LIS11:25 amLisbon Humberto Delgado
34h 13m
2 stops
STL3:38 pmLambert-St Louis
$852

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 April 3, 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

Mon 4/27

8:03 pm-5:55 pm

2 stops15h 52m

Lisbon Humberto Delgado

Mon 5/4

8:25 am-7:33 pm

2 stops17h 08m

$716

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/27

6:29 am-9:05 am

1 stop20h 36m

Lisbon Humberto Delgado

Mon 5/4

8:25 am-7:33 pm

2 stops17h 08m

$720

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/13

11:42 am-10:45 am

2 stops17h 03m

Lisbon Humberto Delgado

Wed 4/29

5:00 am-4:42 pm

2 stops17h 42m

$758

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

11:42 am-8:50 am

2 stops15h 08m

Lisbon Humberto Delgado

Tue 4/21

5:00 am-5:44 pm

2 stops18h 44m

$769
Quickest round-trip

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

1:29 pm-9:05 am

1 stop13h 36m

Lisbon Humberto Delgado

Tue 4/21

11:05 am-7:29 pm

1 stop14h 24m

$771

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

6:50 pm-6:45 pm

2 stops17h 55m

Lisbon Humberto Delgado

Tue 4/21

5:00 am-5:44 pm

2 stops18h 44m

$773

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

6:50 pm-6:45 pm

2 stops17h 55m

Lisbon Humberto Delgado

Tue 4/21

11:55 am-11:36 pm

2 stops17h 41m

$774

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

1:29 pm-9:05 am

1 stop13h 36m

Lisbon Humberto Delgado

Tue 4/21

6:35 am-7:30 pm

2 stops18h 55m

$775

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 4/15

1:29 pm-9:05 am

1 stop13h 36m

Lisbon Humberto Delgado

Tue 4/21

11:05 am-11:46 pm

2 stops18h 41m

$780

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/13

6:29 am-9:05 am

1 stop20h 36m

Lisbon Humberto Delgado

Wed 4/29

11:00 am-7:30 pm

1 stop14h 30m

$781

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, 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 $597. 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 $617.

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 $1,053 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 $700 on momondo.

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

You could potentially save up to 18% 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

14h 00m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 14h 00m
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 14h 00m.

  • 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
11,553 reviews
Search American Airlines flights
DeltaPriceFrom $558Free CancellationRating
7.9
8,375 reviews
Search Delta flights
IberiaPriceFrom $571Free CancellationRating
7.0
3,163 reviews
Search Iberia flights
British AirwaysPriceFrom $574Free CancellationRating
6.7
7,847 reviews
Search British Airways flights
LufthansaPriceFrom $606Free CancellationRating
6.8
7,888 reviews
Search Lufthansa flights
United AirlinesPriceFrom $610Free CancellationRating
7.4
9,540 reviews
Search United Airlines flights
Air CanadaPriceFrom $675Free CancellationRating
7.1
10,889 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
Setúbal
Peniche
Estoril
Evora
Oeiras
Sesimbra
Leiria
Figueira da Foz
Zambujeira do Mar
Óbidos
Batalha
Tomar
Comporta
Almada
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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