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Cheap flights from St. Louis to Lisbon from $318

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 4/7. 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.
Multiple Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
Multiple Airlines Logo
5:05 am - 1:30 pm
LIS
-
STL
14h 25m1 stop
$464Multiple Airlines
Wed, Mar 4 - Wed, Apr 1
Multiple Airlines Logo
4:05 pm - 7:55 am
STL
-
LIS
33h 50m2 stops
Multiple Airlines Logo
5:05 am - 1:30 pm
LIS
-
STL
14h 25m1 stop
$472Multiple Airlines
Wed, Mar 4 - Wed, Apr 1
Multiple Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
Multiple Airlines Logo
8:20 am - 1:55 pm
LIS
-
STL
35h 35m1 stop
$485Multiple Airlines
Fri, Feb 20 - Sat, Feb 28
Multiple Airlines Logo
6:55 pm - 7:55 am
STL
-
LIS
31h 00m2 stops
Multiple Airlines Logo
5:05 am - 9:03 pm
LIS
-
STL
21h 58m2 stops
$488Multiple Airlines
Wed, Mar 4 - Wed, Apr 1
Multiple Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
Multiple Airlines Logo
5:00 am - 12:05 am
LIS
-
STL
25h 05m2 stops
$491Multiple Airlines
Fri, Feb 20 - Fri, Feb 27
Multiple Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
Multiple Airlines Logo
7:45 am - 11:59 pm
LIS
-
STL
22h 14m2 stops
$493Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
United Airlines Logo
9:57 am - 8:10 am
STL
-
LIS
16h 13m2 stops
United Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$494United Airlines
Thu, Jan 8 - Wed, Jan 21
Lufthansa Logo
4:50 pm - 3:40 pm
STL
-
LIS
17h 50m1 stop
Lufthansa Logo
5:05 am - 1:30 pm
LIS
-
STL
14h 25m1 stop
$496Lufthansa
Wed, Mar 18 - Wed, Apr 1
United Airlines Logo
7:00 am - 8:55 am
STL
-
LIS
19h 55m2 stops
United Airlines Logo
5:00 am - 7:19 pm
LIS
-
STL
20h 19m2 stops
$497United Airlines
Sat, Feb 21 - Sat, Feb 28
Multiple Airlines Logo
6:40 pm - 7:55 pm
STL
-
LIS
19h 15m2 stops
Multiple Airlines Logo
5:00 am - 3:15 pm
LIS
-
STL
40h 15m2 stops
$499Multiple Airlines
Fri, Jan 30 - Tue, Feb 3

United Airlines flights from St. Louis to Lisbon

Our best United Airlines deals on St. Louis to Lisbon flight tickets
United Airlines
Jan 8
STL9:57 amLambert-St Louis
16h 13m
2 stops
LIS8:10 amLisbon Humberto Delgado
Jan 21
LIS5:00 amLisbon Humberto Delgado
14h 55m
1 stop
STL1:55 pmLambert-St Louis
$494
Find similar
United Airlines
Feb 21
STL7:00 amLambert-St Louis
19h 55m
2 stops
LIS8:55 amLisbon Humberto Delgado
Feb 28
LIS5:00 amLisbon Humberto Delgado
20h 19m
2 stops
STL7:19 pmLambert-St Louis
$497
Find similar
United Airlines
Feb 20
STL7:00 amLambert-St Louis
20h 20m
2 stops
LIS9:20 amLisbon Humberto Delgado
Feb 27
LIS5:00 amLisbon Humberto Delgado
22h 00m
2 stops
STL9:00 pmLambert-St Louis
$500
Find similar

Iberia flights from St. Louis to Lisbon

Our best Iberia deals on St. Louis to Lisbon flight tickets
Iberia
Jan 8
STL9:33 amLambert-St Louis
17h 32m
1 stop
LIS9:05 amLisbon Humberto Delgado
Jan 21
LIS11:05 amLisbon Humberto Delgado
17h 39m
1 stop
STL10:44 pmLambert-St Louis
$506
Find similar
Iberia
Feb 12
STL9:32 amLambert-St Louis
16h 08m
2 stops
LIS7:40 amLisbon Humberto Delgado
Feb 22
LIS6:45 pmLisbon Humberto Delgado
29h 17m
2 stops
STL6:02 pmLambert-St Louis
$628
Find similar

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 December 13, 2025.
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

Wed 3/4

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Wed 4/1

5:05 am-1:30 pm

1 stop14h 25m

$464

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 3/4

4:05 pm-7:55 am

2 stops33h 50m

Lisbon Humberto Delgado

Wed 4/1

5:05 am-1:30 pm

1 stop14h 25m

$472

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 2/20

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Sat 2/28

8:20 am-1:55 pm

1 stop35h 35m

$485

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 3/4

6:55 pm-7:55 am

2 stops31h 00m

Lisbon Humberto Delgado

Wed 4/1

5:05 am-9:03 pm

2 stops21h 58m

$488

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 2/20

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Fri 2/27

5:00 am-12:05 am

2 stops25h 05m

$491

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/25

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Sun 2/1

7:45 am-11:59 pm

2 stops22h 14m

$493

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Thu 1/8

9:57 am-8:10 am

2 stops16h 13m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-1:55 pm

1 stop14h 55m

$494

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 3/18

4:50 pm-3:40 pm

1 stop17h 50m

Lisbon Humberto Delgado

Wed 4/1

5:05 am-1:30 pm

1 stop14h 25m

$496

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sat 2/21

7:00 am-8:55 am

2 stops19h 55m

Lisbon Humberto Delgado

Sat 2/28

5:00 am-7:19 pm

2 stops20h 19m

$497

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/30

6:40 pm-7:55 pm

2 stops19h 15m

Lisbon Humberto Delgado

Tue 2/3

5:00 am-3:15 pm

2 stops40h 15m

$499

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, November 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 $764. If you are unable to visit Lisbon during the month of November, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $769.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Monday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $894. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Lisbon for around $1,087.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is at noon when flights can be purchased for as low as $884. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,083 on average. Flights to Lisbon from St. Louis in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $1,061 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 $853 on momondo.

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 15m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 11h 15m
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 11h 15m.

  • 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 $544Free CancellationRating
7.2
11,052 reviews
Search American Airlines flights
United AirlinesPriceFrom $604Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights
IberiaPriceFrom $649Free CancellationRating
7.0
3,049 reviews
Search Iberia flights
LufthansaPriceFrom $682Free CancellationRating
6.8
7,626 reviews
Search Lufthansa flights
DeltaPriceFrom $718Free CancellationRating
7.9
8,006 reviews
Search Delta flights
British AirwaysPriceFrom $733Free CancellationRating
6.7
7,571 reviews
Search British Airways flights
Air CanadaPriceFrom $796Free CancellationRating
7.1
10,520 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
Oeiras
Setúbal
Peniche
Estoril
Leiria
Sesimbra
Tomar
Almada
Evora
Figueira da Foz
Zambujeira do Mar
Batalha
Comporta
Torres Vedras
Sines
Óbidos

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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