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Cheap flights from St. Louis to Madrid from $278

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 Madrid departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Madrid

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:05 am - 8:00 am
STL
-
MAD
16h 55m2 stops
Air Canada Logo
1:35 pm - 2:30 pm
MAD
-
STL
31h 55m2 stops
$356Air Canada
Sun, Jan 18 - Tue, Feb 3
Air Canada Logo
4:05 pm - 8:00 am
STL
-
MAD
32h 55m2 stops
Air Canada Logo
1:35 pm - 3:15 pm
MAD
-
STL
32h 40m2 stops
$422Air Canada
Sun, Jan 18 - Tue, Feb 3
British Airways Logo
6:46 pm - 6:25 pm
STL
-
MAD
16h 39m2 stops
British Airways Logo
1:15 pm - 11:04 pm
MAD
-
STL
16h 49m1 stop
$426British Airways
Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
11:05 am - 8:50 am
STL
-
MAD
14h 45m1 stop
Multiple Airlines Logo
12:00 pm - 6:16 pm
MAD
-
STL
13h 16m1 stop
$430Multiple Airlines
Sun, Jan 18 - Tue, Feb 3
British Airways Logo
2:54 pm - 4:55 pm
STL
-
MAD
19h 01m2 stops
British Airways Logo
12:00 pm - 10:44 pm
MAD
-
STL
41h 44m2 stops
$431British Airways
Tue, Feb 3 - Tue, Feb 10
British Airways Logo
6:46 pm - 6:25 pm
STL
-
MAD
16h 39m2 stops
British Airways Logo
6:05 pm - 11:04 pm
MAD
-
STL
35h 59m2 stops
$432British Airways
Tue, Feb 10 - Tue, Feb 17
British Airways Logo
6:11 pm - 7:55 pm
STL
-
MAD
18h 44m2 stops
British Airways Logo
1:35 pm - 4:16 pm
MAD
-
STL
33h 41m1 stop
$436British Airways
Wed, Apr 8 - Thu, Apr 16
British Airways Logo
11:46 am - 9:25 am
STL
-
MAD
14h 39m1 stop
British Airways Logo
1:15 pm - 11:04 pm
MAD
-
STL
16h 49m1 stop
$437British Airways
Wed, Feb 18 - Wed, Feb 25
Iberia Logo
9:25 am - 6:15 am
STL
-
MAD
13h 50m1 stop
Iberia Logo
12:40 pm - 11:22 pm
MAD
-
STL
17h 42m1 stop
$439Iberia
Tue, Feb 10 - Tue, Feb 17
British Airways Logo
5:53 pm - 5:30 am
STL
-
MAD
28h 37m1 stop
British Airways Logo
10:25 am - 7:30 pm
MAD
-
STL
16h 05m1 stop
$440British Airways
Tue, Apr 7 - Tue, Apr 21

British Airways flights from St. Louis to Madrid

Our best British Airways deals on St. Louis to Madrid flight tickets
British Airways
Feb 10
STL6:46 pmLambert-St Louis
16h 39m
2 stops
MAD6:25 pmMadrid Barajas
Feb 17
MAD1:15 pmMadrid Barajas
16h 49m
1 stop
STL11:04 pmLambert-St Louis
$426
British Airways
Feb 3
STL2:54 pmLambert-St Louis
19h 01m
2 stops
MAD4:55 pmMadrid Barajas
Feb 10
MAD12:00 pmMadrid Barajas
41h 44m
2 stops
STL10:44 pmLambert-St Louis
$431
British Airways
Feb 10
STL6:46 pmLambert-St Louis
16h 39m
2 stops
MAD6:25 pmMadrid Barajas
Feb 17
MAD6:05 pmMadrid Barajas
35h 59m
2 stops
STL11:04 pmLambert-St Louis
$432

Air Canada flights from St. Louis to Madrid

Our best Air Canada deals on St. Louis to Madrid flight tickets
Air Canada
Jan 18
STL8:05 amLambert-St Louis
16h 55m
2 stops
MAD8:00 amMadrid Barajas
Feb 3
MAD1:35 pmMadrid Barajas
31h 55m
2 stops
STL2:30 pmLambert-St Louis
$356
Air Canada
Jan 18
STL4:05 pmLambert-St Louis
32h 55m
2 stops
MAD8:00 amMadrid Barajas
Feb 3
MAD1:35 pmMadrid Barajas
32h 40m
2 stops
STL3:15 pmLambert-St Louis
$422
Air Canada
Mar 18
STL4:05 pmLambert-St Louis
32h 55m
2 stops
MAD7:00 amMadrid Barajas
Apr 10
MAD12:45 pmMadrid Barajas
39h 23m
2 stops
STL9:08 pmLambert-St Louis
$470

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Madrid 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 January 8, 2026.
Use the filters below to find and compare flights from St. Louis to Madrid that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

8:05 am-8:00 am

2 stops16h 55m

Madrid Barajas

Tue 2/3

1:35 pm-2:30 pm

2 stops31h 55m

$356

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

4:05 pm-8:00 am

2 stops32h 55m

Madrid Barajas

Tue 2/3

1:35 pm-3:15 pm

2 stops32h 40m

$422

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 2/10

6:46 pm-6:25 pm

2 stops16h 39m

Madrid Barajas

Tue 2/17

1:15 pm-11:04 pm

1 stop16h 49m

$426

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

11:05 am-8:50 am

1 stop14h 45m

Madrid Barajas

Tue 2/3

12:00 pm-6:16 pm

1 stop13h 16m

$430

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 2/3

2:54 pm-4:55 pm

2 stops19h 01m

Madrid Barajas

Tue 2/10

12:00 pm-10:44 pm

2 stops41h 44m

$431

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 2/10

6:46 pm-6:25 pm

2 stops16h 39m

Madrid Barajas

Tue 2/17

6:05 pm-11:04 pm

2 stops35h 59m

$432

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 4/8

6:11 pm-7:55 pm

2 stops18h 44m

Madrid Barajas

Thu 4/16

1:35 pm-4:16 pm

1 stop33h 41m

$436

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 2/18

11:46 am-9:25 am

1 stop14h 39m

Madrid Barajas

Wed 2/25

1:15 pm-11:04 pm

1 stop16h 49m

$437

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 2/10

9:25 am-6:15 am

1 stop13h 50m

Madrid Barajas

Tue 2/17

12:40 pm-11:22 pm

1 stop17h 42m

$439

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 4/7

5:53 pm-5:30 am

1 stop28h 37m

Madrid Barajas

Tue 4/21

10:25 am-7:30 pm

1 stop16h 05m

$440

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from St. Louis to Madrid

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 Madrid?

What is the cheapest month to fly to Madrid?

The month of November is, on average, the cheapest month to fly to Madrid from St. Louis, with most prices found around $608. If you don’t want to visit Madrid in November, then you should wait until December to fly from St. Louis, when ticket prices are also cheap, with an average price of $666.

How far in advance should I book a flight to Madrid?

You are more likely to see cheaper flights to Madrid from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around $855 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Madrid from St. Louis for as low as $589 on momondo.

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

You could potentially save up to 23% on your flight if you consider stops on a St. Louis to Madrid flight.

How have St. Louis to Madrid flight prices changed over time?

When to book flights from St. Louis to Madrid

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Madrid according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Madrid (STL to MAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Madrid

Fastest flight time

12h 28m

Direct flights

None
The fastest flight from St. Louis to Madrid takes 12h 28m
There are no direct flights from St. Louis to Madrid. There are no popular flight routes from St. Louis to Madrid.
Search flight deals

  • How far is Lambert-St Louis to Madrid Barajas by plane?

    The straight-line distance from Lambert-St Louis to Madrid Barajas is 4406.9 mi. 12h 28m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Madrid Barajas Airport?

    Prices for flights from Lambert-St Louis Airport to Madrid Barajas Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Madrid Barajas Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Madrid Barajas 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 Madrid Barajas Airport.

  • What documentation or ID do you need to fly to Madrid Barajas Airport?

    The travel and health documents you'll need for your trip to Madrid Barajas 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 Madrid Barajas 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 Madrid?

Best airlines flying from St. Louis to Madrid

Compare and see reviews for airlines that fly from St. Louis to Madrid with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $516Free CancellationRating
6.7
7,657 reviews
Search British Airways flights
LufthansaPriceFrom $524Free CancellationRating
6.8
7,692 reviews
Search Lufthansa flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
IberiaPriceFrom $586Free CancellationRating
7.0
3,076 reviews
Search Iberia flights
American AirlinesPriceFrom $587Free CancellationRating
7.2
11,094 reviews
Search American Airlines flights
DeltaPriceFrom $587Free CancellationRating
7.9
8,025 reviews
Search Delta flights
Air CanadaPriceFrom $701Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights

Traveling to a place near Madrid?

Book flights to Madrid if you plan to visit one of these locations
Toledo
Segovia
Getafe
Fuenlabrada
Cuenca
San Lorenzo de El Escorial
Guadalajara

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Madrid?

It is quick and easy to find St. Louis to Madrid 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 Madrid that suits you.

Can I find flights from St. Louis to Madrid with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Madrid flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Madrid?

Once you have performed a search for St. Louis to Madrid flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Madrid right now. Can momondo alert me if prices change?

Price alerts on flights to Madrid from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Fly your favorite airline to Madrid

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Iberia
American Airlines
British Airways
United Airlines
Air Canada
Delta
Lufthansa