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Cheap flights from St. Louis to Madrid from $399

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 3/8. 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.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Madrid.

Cheap last minute flights

Planning a quick getaway from St. Louis to Madrid? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Madrid, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Madrid

Find recent round-trip train or bus tickets from St. Louis to Madrid.

All round-trip flight deals from St. Louis to Madrid

The cheapest plane tickets from St. Louis to Madrid found on KAYAK recently.
3:50 pm - 9:35 amSTL-MAD
34h 45m2 stops
12:15 pm - 2:23 pmMAD-STL
32h 08m2 stops
$567Air Canada
Find Deal
Sat, Mar 8 - Wed, Mar 19
3:50 pm - 9:35 amSTL-MAD
34h 45m2 stops
12:15 pm - 2:23 pmMAD-STL
32h 08m2 stops
$573Air Canada
Find Deal
Sat, Mar 1 - Wed, Mar 12
2:21 pm - 9:50 amSTL-MAD
12h 29m1 stop
1:30 pm - 8:48 pmMAD-STL
13h 18m1 stop
$576Iberia
Find Deal
Tue, Mar 4 - Thu, Mar 20
2:21 pm - 9:50 amSTL-MAD
12h 29m1 stop
11:35 am - 10:03 pmMAD-STL
17h 28m1 stop
$582Iberia
Find Deal
Tue, Feb 18 - Fri, Feb 28
5:37 pm - 12:40 pmSTL-MAD
36h 03m2 stops
11:35 am - 10:18 pmMAD-STL
16h 43m1 stop
$603British Airways
Find Deal
Sat, Mar 8 - Wed, Mar 19
11:04 am - 11:40 amSTL-MAD
17h 36m2 stops
8:35 pm - 7:29 pmMAD-STL
29h 54m2 stops
$615British Airways
Find Deal
Mon, Feb 17 - Mon, Feb 24
5:37 pm - 2:25 pmSTL-MAD
13h 48m1 stop
1:15 pm - 10:02 pmMAD-STL
15h 47m2 stops
$649American Airlines
Find Deal
Thu, Feb 13 - Tue, Feb 18
4:45 pm - 3:45 pmSTL-MAD
17h 00m1 stop
4:55 pm - 2:55 pmMAD-STL
28h 00m1 stop
$703Lufthansa
Find Deal
Sun, Mar 9 - Tue, Mar 18
4:45 pm - 1:05 pmSTL-MAD
14h 20m1 stop
6:10 am - 2:55 pmMAD-STL
14h 45m1 stop
$786Lufthansa
Find Deal
Sun, Mar 9 - Fri, Mar 21
10:12 am - 7:55 amSTL-MAD
14h 43m1 stop
12:30 pm - 10:22 pmMAD-STL
15h 52m2 stops
$836American Airlines
Find Deal
Fri, Mar 7 - Fri, Mar 14
7:04 pm - 10:00 pmSTL-MAD
43h 56m3 stops
Sat, Mar 8
5:17 pm - 5:05 pmSTL-MAD
40h 48m3 stops
Tue, Apr 1
4:26 pm - 2:55 pmSTL-MAD
15h 29m2 stops
$461British Airways
Find Deal
Tue, Apr 1
1:06 pm - 10:25 amSTL-MAD
14h 19m1 stop
$463KLM
Find Deal
Tue, Apr 1
3:50 pm - 9:35 amSTL-MAD
34h 45m2 stops
$468Air Canada
Find Deal
Sat, Mar 8
5:37 pm - 9:25 amSTL-MAD
32h 48m1 stop
$515British Airways
Find Deal
Sat, Mar 8
11:45 am - 2:05 pmSTL-MAD
19h 20m2 stops
$1,029
Find Deal
Fri, Jul 4
1:30 pm - 7:50 amSTL-MAD
11h 20m1 stop
$1,038Air Canada
Find Deal
Fri, Jul 4
1:00 pm - 11:20 pmSTL-MAD
27h 20m3 stops
8:20 pm - 11:30 pmMAD-STL
34h 10m3 stops
$1,209
Find Deal
Fri, Jan 24 - Sun, Jan 26
6:25 am - 12:35 pmSTL-MAD
23h 10m1 stop
7:05 am - 2:57 pmMAD-STL
38h 52m2 stops
$1,257
Find Deal
Fri, Jan 24 - Sun, Jan 26
3:50 pm - 6:20 pmSTL-MAD
19h 30m2 stops
8:20 pm - 11:30 pmMAD-STL
34h 10m3 stops
$1,499
Find Deal
Fri, Jan 24 - Sun, Jan 26
2:00 pm - 7:10 pmSTL-MAD
22h 10m2 stops
8:40 am - 8:41 pmMAD-STL
19h 01m2 stops
$1,553Iberia
Find Deal
Fri, Jan 24 - Sun, Jan 26
6:25 am - 12:35 pmSTL-MAD
23h 10m1 stop
3:20 pm - 2:57 pmMAD-STL
30h 37m1 stop
$2,080
Find Deal
Fri, Jan 24 - Sun, Jan 26

United Airlines flights from St. Louis to Madrid

Our best United Airlines deals on St. Louis to Madrid flight tickets
United Airlines
Mar 9
STL4:45 pmLambert-St Louis
14h 20m
1 stop
MAD1:05 pmMadrid Barajas
Mar 19
MAD12:15 pmMadrid Barajas
32h 08m
2 stops
STL2:23 pmLambert-St Louis
United Airlines
Mar 5
STL10:18 amLambert-St Louis
19h 52m
2 stops
MAD1:10 pmMadrid Barajas
Mar 14
MAD12:40 pmMadrid Barajas
32h 51m
2 stops
STL3:31 pmLambert-St Louis
United Airlines
Mar 4
STL6:15 amLambert-St Louis
20h 20m
2 stops
MAD9:35 amMadrid Barajas
Mar 11
MAD6:10 amMadrid Barajas
38h 56m
2 stops
STL3:06 pmLambert-St Louis

British Airways flights from St. Louis to Madrid

Our best British Airways deals on St. Louis to Madrid flight tickets
British Airways
Mar 8
STL5:37 pmLambert-St Louis
36h 03m
2 stops
MAD12:40 pmMadrid Barajas
Mar 19
MAD11:35 amMadrid Barajas
16h 43m
1 stop
STL10:18 pmLambert-St Louis
British Airways
Feb 17
STL11:04 amLambert-St Louis
17h 36m
2 stops
MAD11:40 amMadrid Barajas
Feb 24
MAD8:35 pmMadrid Barajas
29h 54m
2 stops
STL7:29 pmLambert-St Louis
British Airways
Mar 4
STL6:00 pmLambert-St Louis
15h 50m
2 stops
MAD4:50 pmMadrid Barajas
Mar 20
MAD11:35 amMadrid Barajas
16h 43m
1 stop
STL10:18 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 $590. 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 $695.

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 2 weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around $943 when searching 2 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 $723 on momondo.

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

As of January 2025, prices for St. Louis to Madrid flights are approximately 7% 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

$399

Fastest flight time

11h 20m

Direct flights

None

Airports in Madrid

1 airport
The best one-way flight to Madrid from St. Louis in the past 72 hours is $399. The best round-trip flight deal from St. Louis to Madrid found on momondo in the last 72 hours is $567.
The fastest flight from St. Louis to Madrid takes 11h 20m
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. 12h 29m 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
United AirlinesPriceFrom $499Free CancellationRating
7.4
8,985 reviews
Search United Airlines flights
IberiaPriceFrom $511Free CancellationRating
7.0
2,646 reviews
Search Iberia flights
British AirwaysPriceFrom $534Free CancellationRating
6.6
6,834 reviews
Search British Airways flights
KLMPriceFrom $540Free CancellationRating
7.8
1,341 reviews
Search KLM flights
American AirlinesPriceFrom $546Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $556Free CancellationRating
8.0
8,521 reviews
Search Delta flights
LufthansaPriceFrom $615Free CancellationRating
6.7
7,111 reviews
Search Lufthansa flights
Air CanadaPriceFrom $670Free CancellationRating
7.0
8,635 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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