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Cheap flights from Madrid to St. Louis from $549

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 5/23. 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.
Lufthansa Logo
6:05 am - 9:21 pm
MAD
-
STL
22h 16m
2 stops
Lufthansa Logo
12:55 pm - 5:40 pm
STL
-
MAD
21h 45m
2 stops
$912Lufthansa
Thu, Jun 4 - Thu, Jun 11
Lufthansa Logo
10:50 am - 11:35 pm
MAD
-
STL
19h 45m
1 stop
Lufthansa Logo
12:55 pm - 5:40 pm
STL
-
MAD
21h 45m
2 stops
$925Lufthansa
Thu, Jun 4 - Thu, Jun 11
United Airlines Logo
6:00 am - 1:25 pm
MAD
-
STL
14h 25m
1 stop
United Airlines Logo
6:00 am - 9:00 am
STL
-
MAD
20h 00m
1 stop
$928United Airlines
Fri, May 29 - Tue, Jun 2
United Airlines Logo
6:00 am - 1:25 pm
MAD
-
STL
14h 25m
1 stop
United Airlines Logo
6:00 am - 9:00 am
STL
-
MAD
20h 00m
1 stop
$929United Airlines
Fri, May 29 - Tue, Jun 2
United Airlines Logo
5:55 am - 1:25 pm
MAD
-
STL
14h 30m
1 stop
United Airlines Logo
7:01 am - 9:00 am
STL
-
MAD
18h 59m
1 stop
$930United Airlines
Tue, Sep 1 - Thu, Sep 10
Lufthansa Logo
6:05 am - 11:29 pm
MAD
-
STL
24h 24m
2 stops
Lufthansa Logo
1:13 pm - 5:40 pm
STL
-
MAD
21h 27m
2 stops
$933Lufthansa
Thu, Jun 4 - Wed, Jun 10
Lufthansa Logo
6:05 am - 9:21 pm
MAD
-
STL
22h 16m
2 stops
Lufthansa Logo
12:55 pm - 5:40 pm
STL
-
MAD
21h 45m
2 stops
$935Lufthansa
Thu, Jun 4 - Thu, Jun 11
Delta Logo
10:25 am - 9:09 pm
MAD
-
STL
17h 44m
2 stops
Delta Logo
5:36 pm - 3:35 pm
STL
-
MAD
14h 59m
2 stops
$939Delta
Fri, May 29 - Tue, Jun 2
Delta Logo
10:25 am - 11:21 pm
MAD
-
STL
19h 56m
2 stops
Delta Logo
5:36 pm - 4:45 pm
STL
-
MAD
16h 09m
2 stops
$940Delta
Fri, May 29 - Tue, Jun 2
Lufthansa Logo
6:00 am - 3:46 pm
MAD
-
STL
16h 46m
2 stops
Lufthansa Logo
8:43 am - 8:05 am
STL
-
MAD
16h 22m
1 stop
$942Lufthansa
Fri, May 22 - Tue, May 26

KLM flights from Madrid to St. Louis

Our best KLM deals on Madrid to St. Louis flight tickets
KLM
Jun 4
MAD7:05 amMadrid Barajas
17h 11m
2 stops
STL5:16 pmLambert-St Louis
Jun 10
STL9:21 amLambert-St Louis
13h 59m
2 stops
MAD6:20 amMadrid Barajas
$956
KLM
May 16
MAD6:00 amMadrid Barajas
16h 19m
2 stops
STL3:19 pmLambert-St Louis
May 23
STL7:05 pmLambert-St Louis
34h 10m
1 stop
MAD12:15 pmMadrid Barajas
$1,047
KLM
May 16
MAD9:50 amMadrid Barajas
15h 10m
1 stop
STL6:00 pmLambert-St Louis
May 23
STL7:05 pmLambert-St Louis
34h 10m
1 stop
MAD12:15 pmMadrid Barajas
$1,053

Lufthansa flights from Madrid to St. Louis

Our best Lufthansa deals on Madrid to St. Louis flight tickets
Lufthansa
Jun 4
MAD6:05 amMadrid Barajas
22h 16m
2 stops
STL9:21 pmLambert-St Louis
Jun 11
STL12:55 pmLambert-St Louis
21h 45m
2 stops
MAD5:40 pmMadrid Barajas
$912
Lufthansa
Jun 4
MAD10:50 amMadrid Barajas
19h 45m
1 stop
STL11:35 pmLambert-St Louis
Jun 11
STL12:55 pmLambert-St Louis
21h 45m
2 stops
MAD5:40 pmMadrid Barajas
$925
Lufthansa
Jun 4
MAD6:05 amMadrid Barajas
24h 24m
2 stops
STL11:29 pmLambert-St Louis
Jun 10
STL1:13 pmLambert-St Louis
21h 27m
2 stops
MAD5:40 pmMadrid Barajas
$933

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 May 5, 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

Cheapest round-trip

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 6/4

6:05 am-9:21 pm

2 stops22h 16m

Lambert-St Louis

Thu 6/11

12:55 pm-5:40 pm

2 stops21h 45m

$912

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 6/4

10:50 am-11:35 pm

1 stop19h 45m

Lambert-St Louis

Thu 6/11

12:55 pm-5:40 pm

2 stops21h 45m

$925

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 5/29

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Tue 6/2

6:00 am-9:00 am

1 stop20h 00m

$928

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 5/29

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Tue 6/2

6:00 am-9:00 am

1 stop20h 00m

$929

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Tue 9/1

5:55 am-1:25 pm

1 stop14h 30m

Lambert-St Louis

Thu 9/10

7:01 am-9:00 am

1 stop18h 59m

$930

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 6/4

6:05 am-11:29 pm

2 stops24h 24m

Lambert-St Louis

Wed 6/10

1:13 pm-5:40 pm

2 stops21h 27m

$933

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 6/4

6:05 am-9:21 pm

2 stops22h 16m

Lambert-St Louis

Thu 6/11

12:55 pm-5:40 pm

2 stops21h 45m

$935
Quickest round-trip

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 5/29

10:25 am-9:09 pm

2 stops17h 44m

Lambert-St Louis

Tue 6/2

5:36 pm-3:35 pm

2 stops14h 59m

$939

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 5/29

10:25 am-11:21 pm

2 stops19h 56m

Lambert-St Louis

Tue 6/2

5:36 pm-4:45 pm

2 stops16h 09m

$940

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 5/22

6:00 am-3:46 pm

2 stops16h 46m

Lambert-St Louis

Tue 5/26

8:43 am-8:05 am

1 stop16h 22m

$942

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 typical price of a round-trip flight between Madrid and St. Louis?

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 $775. The month of June is another great option to travel to St. Louis, with average flight prices from Madrid averaging around $792.

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

You could potentially save up to 2% 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

12h 57m

Direct flights

None
The fastest flight from Madrid to St. Louis takes 12h 57m
There are no direct flights from Madrid to St. Louis. There are no popular flight routes from Madrid to St. Louis.
Search flight deals

Frequently asked questions about flying 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 12h 57m 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
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

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.

An easier way to manage your St. Louis trip

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