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Cheap flights from St. Louis to Madrid from $224

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 2/2. 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 Madrid

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
11:22 am - 9:15 am
STL
-
MAD
14h 53m1 stop
Lufthansa Logo
11:15 am - 11:59 pm
MAD
-
STL
19h 44m1 stop
$437Lufthansa
Sat, Jan 24 - Sat, Jan 31
Lufthansa Logo
11:22 am - 9:15 am
STL
-
MAD
14h 53m1 stop
Lufthansa Logo
6:00 am - 10:58 pm
MAD
-
STL
23h 58m2 stops
$469Lufthansa
Mon, Jan 19 - Mon, Feb 2
Air Canada Logo
8:05 am - 8:00 am
STL
-
MAD
40h 55m2 stops
Air Canada Logo
1:35 pm - 2:30 pm
MAD
-
STL
31h 55m2 stops
$472Air Canada
Tue, Jan 20 - Tue, Jan 27
United Airlines Logo
6:30 am - 9:15 am
STL
-
MAD
19h 45m2 stops
United Airlines Logo
1:35 pm - 2:30 pm
MAD
-
STL
31h 55m2 stops
$473United Airlines
Tue, Jan 20 - Tue, Jan 27
Air Canada Logo
4:05 pm - 8:00 am
STL
-
MAD
56h 55m2 stops
Air Canada Logo
1:35 pm - 2:30 pm
MAD
-
STL
31h 55m2 stops
$474Air Canada
Fri, Jan 16 - Tue, Jan 27
Lufthansa Logo
6:40 pm - 11:35 pm
STL
-
MAD
21h 55m2 stops
Lufthansa Logo
6:00 am - 5:44 pm
MAD
-
STL
18h 44m2 stops
$476Lufthansa
Tue, Feb 3 - Sat, Feb 14
Multiple Airlines Logo
10:17 am - 5:45 am
STL
-
MAD
12h 28m1 stop
Multiple Airlines Logo
10:00 am - 11:59 pm
MAD
-
STL
20h 59m1 stop
$479Multiple Airlines
Thu, Jan 8 - Wed, Jan 21
British Airways Logo
11:05 am - 1:35 pm
STL
-
MAD
19h 30m2 stops
British Airways Logo
7:25 pm - 6:34 pm
MAD
-
STL
30h 09m2 stops
$481British Airways
Sat, Jan 24 - Sat, Jan 31
United Airlines Logo
8:05 am - 9:15 am
STL
-
MAD
18h 10m2 stops
United Airlines Logo
6:00 am - 1:55 pm
MAD
-
STL
14h 55m1 stop
$483United Airlines
Mon, Jan 19 - Fri, Jan 30
Lufthansa Logo
11:22 am - 9:15 am
STL
-
MAD
14h 53m1 stop
Lufthansa Logo
5:55 am - 1:55 pm
MAD
-
STL
15h 00m1 stop
$484Lufthansa
Wed, Jan 21 - Sun, Jan 25

Lufthansa flights from St. Louis to Madrid

Our best Lufthansa deals on St. Louis to Madrid flight tickets
Lufthansa
Jan 24
STL11:22 amLambert-St Louis
14h 53m
1 stop
MAD9:15 amMadrid Barajas
Jan 31
MAD11:15 amMadrid Barajas
19h 44m
1 stop
STL11:59 pmLambert-St Louis
$437
Find similar
Lufthansa
Jan 19
STL11:22 amLambert-St Louis
14h 53m
1 stop
MAD9:15 amMadrid Barajas
Feb 2
MAD6:00 amMadrid Barajas
23h 58m
2 stops
STL10:58 pmLambert-St Louis
$469
Find similar
Lufthansa
Feb 3
STL6:40 pmLambert-St Louis
21h 55m
2 stops
MAD11:35 pmMadrid Barajas
Feb 14
MAD6:00 amMadrid Barajas
18h 44m
2 stops
STL5:44 pmLambert-St Louis
$476
Find similar

Air Canada flights from St. Louis to Madrid

Our best Air Canada deals on St. Louis to Madrid flight tickets
Air Canada
Jan 20
STL8:05 amLambert-St Louis
40h 55m
2 stops
MAD8:00 amMadrid Barajas
Jan 27
MAD1:35 pmMadrid Barajas
31h 55m
2 stops
STL2:30 pmLambert-St Louis
$472
Find similar
Air Canada
Jan 16
STL4:05 pmLambert-St Louis
56h 55m
2 stops
MAD8:00 amMadrid Barajas
Jan 27
MAD1:35 pmMadrid Barajas
31h 55m
2 stops
STL2:30 pmLambert-St Louis
$474
Find similar
Air Canada
Jan 16
STL4:05 pmLambert-St Louis
56h 55m
2 stops
MAD8:00 amMadrid Barajas
Jan 30
MAD6:00 amMadrid Barajas
40h 29m
2 stops
STL3:29 pmLambert-St Louis
$490
Find similar

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 December 8, 2025.
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

Sat 1/24

11:22 am-9:15 am

1 stop14h 53m

Madrid Barajas

Sat 1/31

11:15 am-11:59 pm

1 stop19h 44m

$437

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 1/19

11:22 am-9:15 am

1 stop14h 53m

Madrid Barajas

Mon 2/2

6:00 am-10:58 pm

2 stops23h 58m

$469

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 1/20

8:05 am-8:00 am

2 stops40h 55m

Madrid Barajas

Tue 1/27

1:35 pm-2:30 pm

2 stops31h 55m

$472

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 1/20

6:30 am-9:15 am

2 stops19h 45m

Madrid Barajas

Tue 1/27

1:35 pm-2:30 pm

2 stops31h 55m

$473

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Fri 1/16

4:05 pm-8:00 am

2 stops56h 55m

Madrid Barajas

Tue 1/27

1:35 pm-2:30 pm

2 stops31h 55m

$474

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 2/3

6:40 pm-11:35 pm

2 stops21h 55m

Madrid Barajas

Sat 2/14

6:00 am-5:44 pm

2 stops18h 44m

$476

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Thu 1/8

10:17 am-5:45 am

1 stop12h 28m

Madrid Barajas

Wed 1/21

10:00 am-11:59 pm

1 stop20h 59m

$479

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 1/24

11:05 am-1:35 pm

2 stops19h 30m

Madrid Barajas

Sat 1/31

7:25 pm-6:34 pm

2 stops30h 09m

$481

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 1/19

8:05 am-9:15 am

2 stops18h 10m

Madrid Barajas

Fri 1/30

6:00 am-1:55 pm

1 stop14h 55m

$483

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 1/21

11:22 am-9:15 am

1 stop14h 53m

Madrid Barajas

Sun 1/25

5:55 am-1:55 pm

1 stop15h 00m

$484

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to Madrid from

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 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 February to fly from St. Louis, when ticket prices are also cheap, with an average price of $720.

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

The cheapest day to depart on your flight to Madrid is on a Tuesday when prices can be found for as low as $743. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Madrid on Monday is $1,028.

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

Flying to Madrid from St. Louis at noon is the least expensive time of day to depart. momondo users have found prices as low as $809 when looking at flights departing at noon. Flights to Madrid are more costly in the morning, with an average ticket price of $983. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $878 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 25% 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?

As of December 2025, prices for St. Louis to Madrid flights are approximately 60% cheaper when compared to flights at the same time last year.

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 35m

Direct flights

None
The fastest flight from St. Louis to Madrid takes 12h 35m
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. 11h 55m 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
LufthansaPriceFrom $524Free CancellationRating
6.8
7,618 reviews
Search Lufthansa flights
British AirwaysPriceFrom $546Free CancellationRating
6.7
7,571 reviews
Search British Airways flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,089 reviews
Search United Airlines flights
IberiaPriceFrom $586Free CancellationRating
7.0
3,043 reviews
Search Iberia flights
DeltaPriceFrom $587Free CancellationRating
7.9
8,011 reviews
Search Delta flights
American AirlinesPriceFrom $613Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
Air CanadaPriceFrom $701Free CancellationRating
7.1
10,514 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
San Lorenzo de El Escorial
Cuenca
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
Lufthansa
Delta