Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Lisbon from $414

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 10/15. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
4:15 pm - 11:00 am
STL
-
LIS
13h 45m
1 stop
Multiple Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m
1 stop
$760Multiple Airlines
Mon, Oct 26 - Wed, Nov 4
Multiple Airlines Logo
4:15 pm - 9:50 am
STL
-
LIS
12h 35m
2 stops
Multiple Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m
1 stop
$762Multiple Airlines
Mon, Oct 26 - Wed, Nov 4
United Airlines Logo
7:30 am - 8:10 am
STL
-
LIS
18h 40m
1 stop
United Airlines Logo
11:20 am - 4:40 pm
LIS
-
STL
35h 20m
2 stops
$781United Airlines
Wed, Nov 4 - Tue, Nov 10
Air Canada Logo
9:23 am - 9:50 am
STL
-
LIS
19h 27m
2 stops
Air Canada Logo
11:20 am - 2:18 pm
LIS
-
STL
32h 58m
2 stops
$784Air Canada
Mon, Oct 26 - Wed, Nov 4
United Airlines Logo
1:27 pm - 10:15 am
STL
-
LIS
14h 48m
2 stops
United Airlines Logo
11:20 am - 4:40 pm
LIS
-
STL
35h 20m
2 stops
$785United 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
1:00 pm - 3:30 pm
LIS
-
STL
32h 30m
1 stop
$799United Airlines
Wed, Nov 4 - Tue, Nov 10
United Airlines Logo
11:45 am - 8:10 am
STL
-
LIS
14h 25m
1 stop
United Airlines Logo
10:15 am - 7:40 pm
LIS
-
STL
15h 25m
1 stop
$801United Airlines
Wed, Nov 4 - Tue, Nov 10
Multiple Airlines Logo
4:15 pm - 11:00 am
STL
-
LIS
12h 45m
1 stop
Multiple Airlines Logo
12:25 pm - 1:55 pm
LIS
-
STL
31h 30m
1 stop
$802Multiple Airlines
Wed, Nov 4 - Tue, Nov 10
Air Canada Logo
4:15 pm - 11:00 am
STL
-
LIS
12h 45m
1 stop
Air Canada Logo
1:00 pm - 3:30 pm
LIS
-
STL
32h 30m
1 stop
$803Air Canada
Wed, Nov 4 - Tue, Nov 10
Multiple Airlines Logo
4:15 pm - 11:00 am
STL
-
LIS
12h 45m
1 stop
Multiple Airlines Logo
12:25 pm - 1:55 pm
LIS
-
STL
31h 30m
1 stop
$826Multiple Airlines
Sun, Nov 8 - Sat, Nov 14

United Airlines flights from St. Louis to Lisbon

Our best United Airlines deals on St. Louis to Lisbon flight tickets
United Airlines
Nov 4
STL7:30 amLambert-St Louis
18h 40m
1 stop
LIS8:10 amLisbon Humberto Delgado
Nov 10
LIS11:20 amLisbon Humberto Delgado
35h 20m
2 stops
STL4:40 pmLambert-St Louis
$781
United Airlines
Nov 4
STL1:27 pmLambert-St Louis
14h 48m
2 stops
LIS10:15 amLisbon Humberto Delgado
Nov 10
LIS11:20 amLisbon Humberto Delgado
35h 20m
2 stops
STL4:40 pmLambert-St Louis
$785
United Airlines
Nov 4
STL7:30 amLambert-St Louis
18h 40m
1 stop
LIS8:10 amLisbon Humberto Delgado
Nov 10
LIS1:00 pmLisbon Humberto Delgado
32h 30m
1 stop
STL3:30 pmLambert-St Louis
$799

WestJet flights from St. Louis to Lisbon

Our best WestJet deals on St. Louis to Lisbon flight tickets
WestJet
May 23
STL6:04 pmLambert-St Louis
45h 41m
2 stops
LIS9:45 pmLisbon Humberto Delgado
Jun 1
LIS6:15 amLisbon Humberto Delgado
33h 14m
2 stops
STL9:29 amLambert-St Louis
$1,214
WestJet
May 23
STL10:19 amLambert-St Louis
29h 36m
2 stops
LIS9:55 pmLisbon Humberto Delgado
Jun 1
LIS6:15 amLisbon Humberto Delgado
20h 54m
2 stops
STL9:09 pmLambert-St Louis
$1,215
WestJet
May 24
STL10:19 amLambert-St Louis
29h 26m
2 stops
LIS9:45 pmLisbon Humberto Delgado
May 31
LIS6:10 amLisbon Humberto Delgado
20h 59m
2 stops
STL9:09 pmLambert-St Louis
$1,291

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 May 16, 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 10/26

4:15 pm-11:00 am

1 stop13h 45m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-1:55 pm

1 stop14h 55m

$760
Quickest round-trip

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 10/26

4:15 pm-9:50 am

2 stops12h 35m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-1:55 pm

1 stop14h 55m

$762

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

11:20 am-4:40 pm

2 stops35h 20m

$781

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 10/26

9:23 am-9:50 am

2 stops19h 27m

Lisbon Humberto Delgado

Wed 11/4

11:20 am-2:18 pm

2 stops32h 58m

$784

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

1:27 pm-10:15 am

2 stops14h 48m

Lisbon Humberto Delgado

Tue 11/10

11:20 am-4:40 pm

2 stops35h 20m

$785

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

1:00 pm-3:30 pm

1 stop32h 30m

$799

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

11:45 am-8:10 am

1 stop14h 25m

Lisbon Humberto Delgado

Tue 11/10

10:15 am-7:40 pm

1 stop15h 25m

$801

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

4:15 pm-11:00 am

1 stop12h 45m

Lisbon Humberto Delgado

Tue 11/10

12:25 pm-1:55 pm

1 stop31h 30m

$802

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 11/4

4:15 pm-11:00 am

1 stop12h 45m

Lisbon Humberto Delgado

Tue 11/10

1:00 pm-3:30 pm

1 stop32h 30m

$803

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 11/8

4:15 pm-11:00 am

1 stop12h 45m

Lisbon Humberto Delgado

Sat 11/14

12:25 pm-1:55 pm

1 stop31h 30m

$826

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $589. If you are unable to visit Lisbon during the month of April, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $605.

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 week ahead of your departure date. In general, you can expect to find flights to Lisbon for around $1,039 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 $719 on momondo.

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

You could potentially save up to 7% 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

13h 05m

Direct flights

None
The fastest flight from St. Louis to Lisbon takes 13h 05m
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 13h 05m.

  • 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
11,662 reviews
Search American Airlines flights
DeltaPriceFrom $558Free CancellationRating
7.9
8,455 reviews
Search Delta flights
IberiaPriceFrom $571Free CancellationRating
7.0
3,217 reviews
Search Iberia flights
British AirwaysPriceFrom $574Free CancellationRating
6.7
7,982 reviews
Search British Airways flights
LufthansaPriceFrom $606Free CancellationRating
6.8
8,004 reviews
Search Lufthansa flights
United AirlinesPriceFrom $617Free CancellationRating
7.4
9,727 reviews
Search United Airlines flights
Air CanadaPriceFrom $675Free CancellationRating
7.1
11,046 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
Peniche
Setúbal
Estoril
Evora
Oeiras
Sesimbra
Leiria
Figueira da Foz
Zambujeira do Mar
Batalha
Óbidos
Tomar
Comporta
Sines
Torres Vedras
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.

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 6/15
Mon 6/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal