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Cheap flights from St. Louis to Lisbon from $347

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 3/8. 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
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
10:00 am - 10:30 am
STL
-
LIS
18h 30m
2 stops
United Airlines Logo
5:05 am - 10:59 pm
LIS
-
STL
23h 54m
2 stops
$500United Airlines
Mon, Apr 20 - Fri, May 1
Delta Logo
3:05 pm - 5:30 pm
STL
-
LIS
21h 25m
2 stops
Delta Logo
5:00 am - 8:42 pm
LIS
-
STL
20h 42m
2 stops
$503Delta
Tue, Mar 10 - Tue, Mar 17
British Airways Logo
6:11 pm - 11:05 pm
STL
-
LIS
22h 54m
2 stops
British Airways Logo
6:45 pm - 7:30 pm
LIS
-
STL
30h 45m
1 stop
$506British Airways
Sun, Apr 19 - Tue, Apr 28
Delta Logo
5:35 pm - 6:45 pm
STL
-
LIS
19h 10m
2 stops
Delta Logo
5:00 am - 11:59 pm
LIS
-
STL
24h 59m
2 stops
$507Delta
Mon, Apr 20 - Fri, May 8
Delta Logo
5:59 pm - 2:55 pm
STL
-
LIS
14h 56m
2 stops
Delta Logo
5:35 am - 5:05 pm
LIS
-
STL
17h 30m
2 stops
$509Delta
Mon, Apr 20 - Sun, May 10
United Airlines Logo
8:30 am - 9:20 am
STL
-
LIS
18h 50m
2 stops
United Airlines Logo
1:00 pm - 12:06 pm
LIS
-
STL
29h 06m
1 stop
$510United Airlines
Tue, Apr 21 - Fri, May 8
United Airlines Logo
7:45 am - 10:30 am
STL
-
LIS
20h 45m
2 stops
United Airlines Logo
1:00 pm - 12:06 pm
LIS
-
STL
29h 06m
1 stop
$511United Airlines
Mon, Apr 20 - Fri, May 8
Delta Logo
5:35 pm - 6:45 pm
STL
-
LIS
19h 10m
2 stops
Delta Logo
5:35 am - 9:14 pm
LIS
-
STL
21h 39m
2 stops
$514Delta
Mon, Apr 20 - Sat, May 9
United Airlines Logo
8:30 am - 9:20 am
STL
-
LIS
18h 50m
2 stops
United Airlines Logo
11:25 am - 10:48 am
LIS
-
STL
29h 23m
2 stops
$515United Airlines
Tue, Apr 21 - Fri, May 8
United Airlines Logo
10:00 am - 10:30 am
STL
-
LIS
18h 30m
2 stops
United Airlines Logo
1:00 pm - 8:04 pm
LIS
-
STL
13h 04m
1 stop
$516United Airlines
Mon, Apr 20 - Fri, May 1

American Airlines flights from St. Louis to Lisbon

Our best American Airlines deals on St. Louis to Lisbon flight tickets
American Airlines
Mar 4
STL6:00 amLambert-St Louis
20h 55m
1 stop
LIS8:55 amLisbon Humberto Delgado
Mar 8
LIS11:05 amLisbon Humberto Delgado
17h 39m
2 stops
STL11:44 pmLambert-St Louis
$612
American Airlines
Feb 17
STL9:23 amLambert-St Louis
17h 42m
2 stops
LIS9:05 amLisbon Humberto Delgado
Feb 19
LIS10:55 amLisbon Humberto Delgado
18h 09m
1 stop
STL11:04 pmLambert-St Louis
$1,020

Delta flights from St. Louis to Lisbon

Our best Delta deals on St. Louis to Lisbon flight tickets
Delta
Mar 10
STL3:05 pmLambert-St Louis
21h 25m
2 stops
LIS5:30 pmLisbon Humberto Delgado
Mar 17
LIS5:00 amLisbon Humberto Delgado
20h 42m
2 stops
STL8:42 pmLambert-St Louis
$503
Delta
Apr 20
STL5:35 pmLambert-St Louis
19h 10m
2 stops
LIS6:45 pmLisbon Humberto Delgado
May 8
LIS5:00 amLisbon Humberto Delgado
24h 59m
2 stops
STL11:59 pmLambert-St Louis
$507
Delta
Apr 20
STL5:59 pmLambert-St Louis
14h 56m
2 stops
LIS2:55 pmLisbon Humberto Delgado
May 10
LIS5:35 amLisbon Humberto Delgado
17h 30m
2 stops
STL5:05 pmLambert-St Louis
$509

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 14, 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

Mon 4/20

10:00 am-10:30 am

2 stops18h 30m

Lisbon Humberto Delgado

Fri 5/1

5:05 am-10:59 pm

2 stops23h 54m

$500

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 3/10

3:05 pm-5:30 pm

2 stops21h 25m

Lisbon Humberto Delgado

Tue 3/17

5:00 am-8:42 pm

2 stops20h 42m

$503

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 4/19

6:11 pm-11:05 pm

2 stops22h 54m

Lisbon Humberto Delgado

Tue 4/28

6:45 pm-7:30 pm

1 stop30h 45m

$506

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

5:35 pm-6:45 pm

2 stops19h 10m

Lisbon Humberto Delgado

Fri 5/8

5:00 am-11:59 pm

2 stops24h 59m

$507

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

5:59 pm-2:55 pm

2 stops14h 56m

Lisbon Humberto Delgado

Sun 5/10

5:35 am-5:05 pm

2 stops17h 30m

$509

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/21

8:30 am-9:20 am

2 stops18h 50m

Lisbon Humberto Delgado

Fri 5/8

1:00 pm-12:06 pm

1 stop29h 06m

$510

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

7:45 am-10:30 am

2 stops20h 45m

Lisbon Humberto Delgado

Fri 5/8

1:00 pm-12:06 pm

1 stop29h 06m

$511

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

5:35 pm-6:45 pm

2 stops19h 10m

Lisbon Humberto Delgado

Sat 5/9

5:35 am-9:14 pm

2 stops21h 39m

$514

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Tue 4/21

8:30 am-9:20 am

2 stops18h 50m

Lisbon Humberto Delgado

Fri 5/8

11:25 am-10:48 am

2 stops29h 23m

$515

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 4/20

10:00 am-10:30 am

2 stops18h 30m

Lisbon Humberto Delgado

Fri 5/1

1:00 pm-8:04 pm

1 stop13h 04m

$516

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, 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 February is also very affordable. Most momondo users find prices during this month for around $707.

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 $1,068 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

14h 20m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 14h 20m
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 14h 20m.

  • 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
11,291 reviews
Search American Airlines flights
IberiaPriceFrom $571Free CancellationRating
7.0
3,115 reviews
Search Iberia flights
LufthansaPriceFrom $606Free CancellationRating
6.8
7,785 reviews
Search Lufthansa flights
United AirlinesPriceFrom $622Free CancellationRating
7.4
9,292 reviews
Search United Airlines flights
DeltaPriceFrom $653Free CancellationRating
7.9
8,202 reviews
Search Delta flights
Air CanadaPriceFrom $721Free CancellationRating
7.1
10,717 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
Nazaré
Fátima
Setúbal
Estoril
Peniche
Evora
Oeiras
Leiria
Sesimbra
Tomar
Figueira da Foz
Zambujeira do Mar
Batalha
Óbidos
Comporta
Torres Vedras
Sines
Almada

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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