Cheap flights from Madrid to St. Louis from $381

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Madrid to St. Louis departing on 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Iberia Logo
12:40 pm - 8:53 pmMAD-STL
15h 13m1 stop
Iberia Logo
8:04 pm - 1:25 pmSTL-MAD
10h 21m1 stop
$708Iberia
Find Deal
Tue, Oct 14 - Tue, Oct 21
Iberia Logo
11:35 am - 8:24 pmMAD-STL
15h 49m1 stop
Iberia Logo
11:50 am - 10:20 amSTL-MAD
15h 30m1 stop
$726Iberia
Find Deal
Wed, Dec 10 - Sun, Dec 14
Iberia Logo
12:40 pm - 8:53 pmMAD-STL
15h 13m1 stop
Iberia Logo
2:15 pm - 2:15 pmSTL-MAD
18h 00m2 stops
$729Iberia
Find Deal
Wed, Oct 8 - Mon, Oct 27
American Airlines Logo
11:00 am - 6:43 pmMAD-STL
14h 43m2 stops
American Airlines Logo
10:47 am - 8:55 amSTL-MAD
15h 08m1 stop
$739American Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
Iberia Logo
12:40 pm - 8:53 pmMAD-STL
15h 13m1 stop
Iberia Logo
12:21 pm - 9:05 amSTL-MAD
13h 44m1 stop
$742Iberia
Find Deal
Wed, Oct 8 - Tue, Oct 21
British Airways Logo
6:45 am - 4:50 pmMAD-STL
17h 05m2 stops
British Airways Logo
4:49 pm - 4:55 pmSTL-MAD
17h 06m2 stops
$775British Airways
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Wed, Dec 10 - Sun, Dec 14
United Airlines Logo
6:00 am - 3:44 pmMAD-STL
16h 44m2 stops
United Airlines Logo
6:30 am - 9:05 amSTL-MAD
19h 35m2 stops
$794United Airlines
Find Deal
Tue, Oct 14 - Sat, Oct 25
United Airlines Logo
6:20 am - 3:44 pmMAD-STL
16h 24m2 stops
United Airlines Logo
5:28 pm - 6:40 amSTL-MAD
30h 12m2 stops
$804United Airlines
Find Deal
Fri, Oct 10 - Sat, Oct 18
Lufthansa Logo
10:50 am - 11:57 pmMAD-STL
20h 07m1 stop
Lufthansa Logo
1:05 pm - 9:05 amSTL-MAD
13h 00m1 stop
$813Lufthansa
Find Deal
Fri, Oct 10 - Sat, Oct 25
Lufthansa Logo
10:50 am - 11:57 pmMAD-STL
20h 07m1 stop
Lufthansa Logo
12:25 pm - 12:10 pmSTL-MAD
16h 45m2 stops
$818Lufthansa
Find Deal
Fri, Oct 10 - Sat, Oct 25

Iberia flights from Madrid to St. Louis

Our best Iberia deals on Madrid to St. Louis flight tickets
Iberia
Oct 14
MAD12:40 pmMadrid Barajas
15h 13m
1 stop
STL8:53 pmLambert-St Louis
Oct 21
STL8:04 pmLambert-St Louis
10h 21m
1 stop
MAD1:25 pmMadrid Barajas
Iberia
Dec 10
MAD11:35 amMadrid Barajas
15h 49m
1 stop
STL8:24 pmLambert-St Louis
Dec 14
STL11:50 amLambert-St Louis
15h 30m
1 stop
MAD10:20 amMadrid Barajas
Iberia
Oct 8
MAD12:40 pmMadrid Barajas
15h 13m
1 stop
STL8:53 pmLambert-St Louis
Oct 27
STL2:15 pmLambert-St Louis
18h 00m
2 stops
MAD2:15 pmMadrid Barajas

United Airlines flights from Madrid to St. Louis

Our best United Airlines deals on Madrid to St. Louis flight tickets
United Airlines
Oct 14
MAD6:00 amMadrid Barajas
16h 44m
2 stops
STL3:44 pmLambert-St Louis
Oct 25
STL6:30 amLambert-St Louis
19h 35m
2 stops
MAD9:05 amMadrid Barajas
United Airlines
Oct 10
MAD6:20 amMadrid Barajas
16h 24m
2 stops
STL3:44 pmLambert-St Louis
Oct 18
STL5:28 pmLambert-St Louis
30h 12m
2 stops
MAD6:40 amMadrid Barajas
United Airlines
Oct 8
MAD11:15 amMadrid Barajas
17h 22m
2 stops
STL9:37 pmLambert-St Louis
Oct 21
STL1:05 pmLambert-St Louis
12h 00m
1 stop
MAD8:05 amMadrid Barajas

momondo Fare Finder

 
Customize your flight search to find flights from Madrid to St. Louis 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 September 15, 2025.
Use the filters below to find and compare flights from Madrid to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Tue 10/14

12:40 pm-8:53 pm

1 stop15h 13m

Lambert-St Louis

Tue 10/21

8:04 pm-1:25 pm

1 stop10h 21m

$708

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Wed 12/10

11:35 am-8:24 pm

1 stop15h 49m

Lambert-St Louis

Sun 12/14

11:50 am-10:20 am

1 stop15h 30m

$726

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Wed 10/8

12:40 pm-8:53 pm

1 stop15h 13m

Lambert-St Louis

Mon 10/27

2:15 pm-2:15 pm

2 stops18h 00m

$729

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Wed 12/10

11:00 am-6:43 pm

2 stops14h 43m

Lambert-St Louis

Sun 12/14

10:47 am-8:55 am

1 stop15h 08m

$739

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Wed 10/8

12:40 pm-8:53 pm

1 stop15h 13m

Lambert-St Louis

Tue 10/21

12:21 pm-9:05 am

1 stop13h 44m

$742

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Wed 12/10

6:45 am-4:50 pm

2 stops17h 05m

Lambert-St Louis

Sun 12/14

4:49 pm-4:55 pm

2 stops17h 06m

$775

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Tue 10/14

6:00 am-3:44 pm

2 stops16h 44m

Lambert-St Louis

Sat 10/25

6:30 am-9:05 am

2 stops19h 35m

$794

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 10/10

6:20 am-3:44 pm

2 stops16h 24m

Lambert-St Louis

Sat 10/18

5:28 pm-6:40 am

2 stops30h 12m

$804

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 10/10

10:50 am-11:57 pm

1 stop20h 07m

Lambert-St Louis

Sat 10/25

1:05 pm-9:05 am

1 stop13h 00m

$813

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 10/10

10:50 am-11:57 pm

1 stop20h 07m

Lambert-St Louis

Sat 10/25

12:25 pm-12:10 pm

2 stops16h 45m

$818

Flights are sorted by cheapest round-trip flights first.

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See travel insights to St. Louis from

How to get the cheapest flight ticket from Madrid to St. Louis

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 St. Louis?

In general, May is the cheapest month to fly from Madrid to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $761. The month of June is another great option to travel to St. Louis, with average flight prices from Madrid averaging around $792.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $671. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,111. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Madrid at noon is the least expensive time of day to depart. momondo users have found prices as low as $712 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $888 per ticket.

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

You could potentially save up to 25% on your flight if you consider stops on a Madrid to St. Louis flight.

When to book flights from Madrid to St. Louis

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

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

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

Direct flights

None
There are no direct flights from Madrid to St. Louis. There are no popular flight routes from Madrid to St. Louis.
  • How far is Madrid Barajas to Lambert-St Louis by plane?

    The distance between Madrid Barajas and Lambert-St Louis is about 4406.9 mi. Typically, this will take 14h 03m by plane in normal conditions.

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

    Prices for flights from Madrid Barajas Airport to Lambert-St Louis Airport were last updated today.

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

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Madrid to St. Louis. momondo saves you time and could save you money on your trip.

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

Flights from Madrid to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Madrid to St. Louis 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 Madrid to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Madrid to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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Wed 10/15
Wed 10/22

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