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Cheap flights from St. Louis to Lisbon from $348

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 1/31. 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 - 8:55 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
10h 50m1 stop Toronto Pearson Intl
Multiple Airlines Logo
5:00 am - 1:45 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
14h 45m1 stop Frankfurt am Main
$700Multiple Airlines
Wed, Nov 18 - Wed, Nov 25
Multiple Airlines Logo
4:05 pm - 9:20 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
12h 15m1 stop Toronto Pearson Intl
Multiple Airlines Logo
5:00 am - 1:45 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
14h 45m1 stop Frankfurt am Main
$700Multiple Airlines
Tue, Oct 27 - Wed, Nov 11
Lufthansa Logo
11:29 am - 1:30 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
20h 01m2 stops Newark Munich Franz Josef Strauss
Lufthansa Logo
5:00 am - 1:45 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
14h 45m1 stop Frankfurt am Main
$709Lufthansa
Wed, Nov 18 - Wed, Nov 25
Lufthansa Logo
6:50 pm - 11:30 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
23h 40m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
5:00 am - 1:45 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
14h 45m1 stop Frankfurt am Main
$709Lufthansa
Tue, Oct 27 - Wed, Nov 11
United Airlines Logo
6:30 am - 6:55 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
18h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
5:00 am - 1:45 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
14h 45m1 stop Frankfurt am Main
$723United Airlines
Wed, Jan 13 - Fri, Jan 22
United Airlines Logo
6:30 am - 10:40 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
22h 10m2 stops Newark Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
5:00 am - 1:45 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
14h 45m1 stop Frankfurt am Main
$723United Airlines
Mon, Jan 11 - Wed, Jan 20
Air Canada Logo
7:04 pm - 6:55 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
29h 51m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
11:20 am - 9:13 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
39h 53m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$730Air Canada
Tue, Jan 12 - Fri, Jan 22
Air Canada Logo
7:04 pm - 6:55 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
29h 51m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
11:20 am - 7:29 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
38h 09m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$730Air Canada
Tue, Jan 12 - Thu, Jan 21
Delta Logo
6:00 am - 8:00 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
20h 00m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
Delta Logo
5:00 am - 4:50 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
17h 50m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$740Delta
Wed, Jan 13 - Tue, Jan 19
Delta Logo
6:47 am - 8:00 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
19h 13m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl
Delta Logo
5:00 am - 11:23 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
24h 23m2 stops Amsterdam Schiphol Minneapolis St Paul
$740Delta
Wed, Nov 4 - Tue, Nov 10

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Delta flights from St. Louis to Lisbon

Our best Delta deals on St. Louis to Lisbon flight tickets
Delta
Nov 4
STL6:47 amLambert-St Louis
19h 13m
2 stops
LIS8:00 amLisbon Humberto Delgado
Nov 10
LIS5:00 amLisbon Humberto Delgado
24h 23m
2 stops
STL11:23 pmLambert-St Louis
$740
Delta
Nov 3
STL12:00 pmLambert-St Louis
17h 25m
2 stops
LIS11:25 amLisbon Humberto Delgado
Nov 9
LIS5:00 amLisbon Humberto Delgado
21h 51m
2 stops
STL8:51 pmLambert-St Louis
$790
Delta
Sep 28
STL6:00 amLambert-St Louis
20h 50m
2 stops
LIS8:50 amLisbon Humberto Delgado
Oct 9
LIS5:00 amLisbon Humberto Delgado
18h 19m
2 stops
STL5:19 pmLambert-St Louis
$799

United Airlines flights from St. Louis to Lisbon

Our best United Airlines deals on St. Louis to Lisbon flight tickets
United Airlines
Jan 11
STL6:30 amLambert-St Louis
22h 10m
2 stops
LIS10:40 amLisbon Humberto Delgado
Jan 20
LIS5:00 amLisbon Humberto Delgado
14h 45m
1 stop
STL1:45 pmLambert-St Louis
$723
United Airlines
Jan 11
STL6:30 amLambert-St Louis
22h 10m
2 stops
LIS10:40 amLisbon Humberto Delgado
Jan 21
LIS11:20 amLisbon Humberto Delgado
34h 21m
2 stops
STL3:41 pmLambert-St Louis
$725
United Airlines
Jan 12
STL6:30 amLambert-St Louis
19h 40m
1 stop
LIS8:10 amLisbon Humberto Delgado
Jan 22
LIS11:20 amLisbon Humberto Delgado
29h 49m
2 stops
STL11:09 amLambert-St Louis
$726

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 August 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
Quickest round-trip

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 11/18

4:05 pm-8:55 am

1 stop10h 50m

Lisbon Humberto Delgado

Wed 11/25

5:00 am-1:45 pm

1 stop14h 45m

$700

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Tue 10/27

4:05 pm-9:20 am

1 stop12h 15m

Lisbon Humberto Delgado

Wed 11/11

5:00 am-1:45 pm

1 stop14h 45m

$700

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 11/18

11:29 am-1:30 pm

2 stops20h 01m

Lisbon Humberto Delgado

Wed 11/25

5:00 am-1:45 pm

1 stop14h 45m

$709

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Tue 10/27

6:50 pm-11:30 pm

2 stops23h 40m

Lisbon Humberto Delgado

Wed 11/11

5:00 am-1:45 pm

1 stop14h 45m

$709

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 1/13

6:30 am-6:55 am

2 stops18h 25m

Lisbon Humberto Delgado

Fri 1/22

5:00 am-1:45 pm

1 stop14h 45m

$723

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Mon 1/11

6:30 am-10:40 am

2 stops22h 10m

Lisbon Humberto Delgado

Wed 1/20

5:00 am-1:45 pm

1 stop14h 45m

$723

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Tue 1/12

7:04 pm-6:55 am

2 stops29h 51m

Lisbon Humberto Delgado

Fri 1/22

11:20 am-9:13 pm

2 stops39h 53m

$730

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Tue 1/12

7:04 pm-6:55 am

2 stops29h 51m

Lisbon Humberto Delgado

Thu 1/21

11:20 am-7:29 pm

2 stops38h 09m

$730

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 1/13

6:00 am-8:00 am

2 stops20h 00m

Lisbon Humberto Delgado

Tue 1/19

5:00 am-4:50 pm

2 stops17h 50m

$740

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 11/4

6:47 am-8:00 am

2 stops19h 13m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-11:23 pm

2 stops24h 23m

$740

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,048 to $1,439.
The lowest price recently found on this route was $700.

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 $682.

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 $1,019 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 6% 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 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

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 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 $502Free CancellationRating
7.1
11,902 reviews
Search American Airlines flights
DeltaPriceFrom $558Free CancellationRating
7.8
8,506 reviews
Search Delta flights
British AirwaysPriceFrom $574Free CancellationRating
6.7
8,156 reviews
Search British Airways flights
LufthansaPriceFrom $606Free CancellationRating
6.8
8,177 reviews
Search Lufthansa flights
United AirlinesPriceFrom $610Free CancellationRating
7.4
10,103 reviews
Search United Airlines flights
Air CanadaPriceFrom $649Free CancellationRating
7.1
11,461 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
Figueira da Foz
Setúbal
Nazaré
Estoril
Evora
Ericeira
Peniche
Óbidos
Tomar
Batalha
Leiria
Oeiras
Sesimbra
Zambujeira do Mar
Torres Vedras
Comporta
Sines
Caldas da Rainha

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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