Cheap flights from Madrid to St. Louis from $424

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 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Madrid to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
12:40 pm - 11:22 pm
MAD
-
STL
17h 42m
1 stop
British Airways Logo
1:30 pm - 8:55 am
STL
-
MAD
12h 25m
1 stop
$691British Airways
Sat, Feb 14 - Sat, Feb 21
British Airways Logo
11:25 am - 10:58 pm
MAD
-
STL
17h 33m
1 stop
British Airways Logo
2:00 pm - 7:55 am
STL
-
MAD
11h 55m
1 stop
$750British Airways
Fri, Mar 13 - Fri, Mar 20
Finnair Logo
11:30 am - 11:56 pm
MAD
-
STL
19h 26m
1 stop
Finnair Logo
11:46 am - 9:25 am
STL
-
MAD
14h 39m
1 stop
$772Finnair
Mon, Feb 23 - Mon, Mar 2
Finnair Logo
12:55 am - 7:29 pm
MAD
-
STL
25h 34m
1 stop
Finnair Logo
11:46 am - 9:25 am
STL
-
MAD
14h 39m
1 stop
$774Finnair
Wed, Feb 25 - Tue, Mar 3
Multiple Airlines Logo
11:00 am - 8:43 pm
MAD
-
STL
16h 43m
2 stops
Multiple Airlines Logo
3:47 pm - 3:20 pm
STL
-
MAD
16h 33m
2 stops
$783Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
11:00 am - 8:43 pm
MAD
-
STL
16h 43m
2 stops
Multiple Airlines Logo
5:50 pm - 3:20 pm
STL
-
MAD
14h 30m
2 stops
$785Multiple Airlines
Thu, Feb 26 - Tue, Mar 3
KLM Logo
11:00 am - 8:43 pm
MAD
-
STL
16h 43m
2 stops
KLM Logo
7:10 am - 9:15 am
STL
-
MAD
19h 05m
1 stop
$787KLM
Mon, Feb 23 - Mon, Mar 2
KLM Logo
11:00 am - 8:43 pm
MAD
-
STL
16h 43m
2 stops
KLM Logo
7:10 am - 9:15 am
STL
-
MAD
19h 05m
1 stop
$789KLM
Thu, Feb 26 - Tue, Mar 3
United Airlines Logo
6:00 am - 1:55 pm
MAD
-
STL
14h 55m
1 stop
United Airlines Logo
11:28 am - 9:15 am
STL
-
MAD
15h 47m
1 stop
$796United Airlines
Fri, Mar 6 - Tue, Mar 10
Lufthansa Logo
6:00 am - 8:23 pm
MAD
-
STL
21h 23m
2 stops
Lufthansa Logo
11:39 am - 9:15 am
STL
-
MAD
14h 36m
1 stop
$798Lufthansa
Sat, Feb 14 - Sat, Feb 21

Delta flights from Madrid to St. Louis

Our best Delta deals on Madrid to St. Louis flight tickets
Delta
Mar 26
MAD6:00 amMadrid Barajas
23h 58m
2 stops
STL11:58 pmLambert-St Louis
Apr 9
STL10:12 amLambert-St Louis
19h 03m
1 stop
MAD12:15 pmMadrid Barajas
$878
Delta
Mar 26
MAD1:05 pmMadrid Barajas
26h 00m
2 stops
STL9:05 amLambert-St Louis
Apr 9
STL6:00 amLambert-St Louis
23h 15m
1 stop
MAD12:15 pmMadrid Barajas
$934

British Airways flights from Madrid to St. Louis

Our best British Airways deals on Madrid to St. Louis flight tickets
British Airways
Feb 14
MAD12:40 pmMadrid Barajas
17h 42m
1 stop
STL11:22 pmLambert-St Louis
Feb 21
STL1:30 pmLambert-St Louis
12h 25m
1 stop
MAD8:55 amMadrid Barajas
$691
British Airways
Mar 13
MAD11:25 amMadrid Barajas
17h 33m
1 stop
STL10:58 pmLambert-St Louis
Mar 20
STL2:00 pmLambert-St Louis
11h 55m
1 stop
MAD7:55 amMadrid Barajas
$750
British Airways
Mar 26
MAD1:45 pmMadrid Barajas
15h 05m
1 stop
STL10:50 pmLambert-St Louis
Apr 9
STL12:27 pmLambert-St Louis
14h 08m
1 stop
MAD9:35 amMadrid Barajas
$946

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 January 29, 2026.
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

Sat 2/14

12:40 pm-11:22 pm

1 stop17h 42m

Lambert-St Louis

Sat 2/21

1:30 pm-8:55 am

1 stop12h 25m

$691

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 3/13

11:25 am-10:58 pm

1 stop17h 33m

Lambert-St Louis

Fri 3/20

2:00 pm-7:55 am

1 stop11h 55m

$750

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Mon 2/23

11:30 am-11:56 pm

1 stop19h 26m

Lambert-St Louis

Mon 3/2

11:46 am-9:25 am

1 stop14h 39m

$772

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Wed 2/25

12:55 am-7:29 pm

1 stop25h 34m

Lambert-St Louis

Tue 3/3

11:46 am-9:25 am

1 stop14h 39m

$774

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Mon 2/23

11:00 am-8:43 pm

2 stops16h 43m

Lambert-St Louis

Mon 3/2

3:47 pm-3:20 pm

2 stops16h 33m

$783

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 2/26

11:00 am-8:43 pm

2 stops16h 43m

Lambert-St Louis

Tue 3/3

5:50 pm-3:20 pm

2 stops14h 30m

$785

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Mon 2/23

11:00 am-8:43 pm

2 stops16h 43m

Lambert-St Louis

Mon 3/2

7:10 am-9:15 am

1 stop19h 05m

$787

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 2/26

11:00 am-8:43 pm

2 stops16h 43m

Lambert-St Louis

Tue 3/3

7:10 am-9:15 am

1 stop19h 05m

$789

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 3/6

6:00 am-1:55 pm

1 stop14h 55m

Lambert-St Louis

Tue 3/10

11:28 am-9:15 am

1 stop15h 47m

$796

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Sat 2/14

6:00 am-8:23 pm

2 stops21h 23m

Lambert-St Louis

Sat 2/21

11:39 am-9:15 am

1 stop14h 36m

$798

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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, April 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 $714. The month of May is another great option to travel to St. Louis, with average flight prices from Madrid averaging around $746.

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

You could potentially save up to 27% 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

Fastest flight time

37h 32m

Direct flights

None
The fastest flight from Madrid to St. Louis takes 37h 32m
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 37h 32m 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
Maryland Heights
Florissant
O'Fallon
Collinsville
Fenton
St. Peters
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Glencoe
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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Sat 2/28
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