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Cheap flights from St. Louis to Madrid from $544

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 7/28. 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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Find the cheapest flights from St. Louis to Madrid

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Madrid that have been recently found on momondo from popular airlines, departing in the coming months.
11:55 am - 1:25 pmSTL-MAD
18h 30m1 stop
1:45 pm - 8:58 pmMAD-STL
14h 13m1 stop
$673British Airways
Find Deal
Tue, Apr 1 - Tue, Apr 8
6:29 pm - 1:25 pmSTL-MAD
11h 56m1 stop
6:45 am - 10:12 pmMAD-STL
22h 27m2 stops
$674Finnair
Find Deal
Tue, Apr 1 - Tue, Apr 8
6:30 am - 6:40 amSTL-MAD
17h 10m2 stops
12:45 pm - 12:20 pmMAD-STL
30h 35m2 stops
$680United Airlines
Find Deal
Tue, Apr 1 - Tue, Apr 8
9:28 am - 8:25 amSTL-MAD
16h 57m1 stop
1:45 pm - 8:58 pmMAD-STL
14h 13m1 stop
$702Iberia
Find Deal
Sat, Mar 29 - Tue, Apr 8
7:13 am - 5:45 amSTL-MAD
16h 32m1 stop
10:45 am - 10:18 pmMAD-STL
17h 33m2 stops
$739American Airlines
Find Deal
Tue, Mar 18 - Tue, Mar 25
5:33 pm - 8:05 pmSTL-MAD
20h 32m2 stops
6:10 am - 12:12 pmMAD-STL
36h 02m2 stops
$777United Airlines
Find Deal
Mon, Mar 17 - Tue, Mar 25
2:02 pm - 9:55 amSTL-MAD
13h 53m1 stop
11:35 am - 10:18 pmMAD-STL
16h 43m1 stop
$778Iberia
Find Deal
Mon, Mar 10 - Wed, Mar 19
7:13 am - 5:45 amSTL-MAD
16h 32m1 stop
10:00 am - 11:56 pmMAD-STL
19h 56m1 stop
$800American Airlines
Find Deal
Tue, Mar 18 - Tue, Mar 25
3:30 pm - 4:15 pmSTL-MAD
17h 45m1 stop
1:05 pm - 3:47 pmMAD-STL
33h 42m2 stops
$1,045Lufthansa
Find Deal
Wed, Apr 16 - Mon, Apr 21
5:35 pm - 5:35 pmSTL-MAD
17h 00m2 stops
5:05 pm - 3:47 pmMAD-STL
29h 42m2 stops
$1,047Lufthansa
Find Deal
Wed, Apr 16 - Mon, Apr 21

British Airways flights from St. Louis to Madrid

Our best British Airways deals on St. Louis to Madrid flight tickets
British Airways
Apr 1
STL11:55 amLambert-St Louis
18h 30m
1 stop
MAD1:25 pmMadrid Barajas
Apr 8
MAD1:45 pmMadrid Barajas
14h 13m
1 stop
STL8:58 pmLambert-St Louis
British Airways
Mar 29
STL11:39 amLambert-St Louis
16h 41m
2 stops
MAD10:20 amMadrid Barajas
Apr 8
MAD1:45 pmMadrid Barajas
14h 13m
1 stop
STL8:58 pmLambert-St Louis
British Airways
Mar 18
STL6:29 pmLambert-St Louis
19h 26m
2 stops
MAD7:55 pmMadrid Barajas
Mar 25
MAD8:50 pmMadrid Barajas
27h 09m
2 stops
STL5:59 pmLambert-St Louis

Finnair flights from St. Louis to Madrid

Our best Finnair deals on St. Louis to Madrid flight tickets
Finnair
Apr 1
STL6:29 pmLambert-St Louis
11h 56m
1 stop
MAD1:25 pmMadrid Barajas
Apr 8
MAD6:45 amMadrid Barajas
22h 27m
2 stops
STL10:12 pmLambert-St Louis
Finnair
Mar 11
STL11:39 amLambert-St Louis
15h 46m
1 stop
MAD9:25 amMadrid Barajas
Mar 18
MAD10:00 amMadrid Barajas
19h 56m
1 stop
STL11:56 pmLambert-St Louis
Finnair
Mar 11
STL11:39 amLambert-St Louis
15h 46m
1 stop
MAD9:25 amMadrid Barajas
Mar 18
MAD10:00 amMadrid Barajas
19h 56m
1 stop
STL11:56 pmLambert-St Louis

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 February is, on average, the cheapest month to fly to Madrid from St. Louis, with most prices found around $610. If you don’t want to visit Madrid in February, then you should wait until August to fly from St. Louis, when ticket prices are also cheap, with an average price of $693.

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 22 weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around $940 when searching 22 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 $739 on momondo.

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

As of February 2025, prices for St. Louis to Madrid flights are approximately 4% 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

Best Price Found

$544

Fastest flight time

9h 56m

Direct flights

None

Airports in Madrid

1 airport
The best one-way flight to Madrid from St. Louis in the past 72 hours is $544. The best round-trip flight deal from St. Louis to Madrid found on momondo in the last 72 hours is $673.
The fastest flight from St. Louis to Madrid takes 9h 56m
There are no direct flights from St. Louis to Madrid. Popular non-direct route for this connection is Lambert-St Louis Airport - Madrid Barajas Airport.
There is 1 airport near Madrid: Madrid Barajas (MAD)

  • 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. 9h 56m 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 $545Free CancellationRating
6.6
6,762 reviews
Search British Airways flights
IberiaPriceFrom $553Free CancellationRating
7.0
2,639 reviews
Search Iberia flights
DeltaPriceFrom $556Free CancellationRating
8.0
8,219 reviews
Search Delta flights
American AirlinesPriceFrom $587Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $615Free CancellationRating
6.7
6,986 reviews
Search Lufthansa flights
United AirlinesPriceFrom $647Free CancellationRating
7.4
8,765 reviews
Search United Airlines flights
KLMPriceFrom $655Free CancellationRating
7.8
1,333 reviews
Search KLM flights
Air CanadaPriceFrom $670Free CancellationRating
7.0
8,748 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
El Arenal

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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