HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$398+ Cheap flights from Madrid, Spain (MAD) to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — STL
feb. 26 — mar. 51
jue. 2/26
jue. 3/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Madrid to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Madrid to St. Louis

Cheapest flights from Madrid to St. Louis
Explore the most affordable flight options available from Madrid to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 27, 2026.

This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/21:15 pm
MAD
-
STL
1 stop16h 29m
British Airways
lun. 2/97:15 am
STL
-
MAD
1 stop19h 10m
British Airways
Deal found 1/26$656
This Finnair deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/24:25 pm
MAD
-
STL
2 stops25h 48m
Multiple Airlines
lun. 2/95:05 am
STL
-
MAD
1 stop25h 00m
Multiple Airlines
Deal found 1/26$661
This British Airways deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/2712:00 pm
MAD
-
STL
1 stop18h 35m
British Airways
lun. 3/211:46 am
STL
-
MAD
1 stop14h 39m
British Airways
Deal found 1/24$667
This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/141:15 pm
MAD
-
STL
1 stop16h 37m
British Airways
sáb. 2/219:35 am
STL
-
MAD
1 stop16h 50m
British Airways
Deal found 1/26$685
This British Airways deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/612:50 pm
MAD
-
STL
2 stops17h 45m
British Airways
lun. 3/92:00 pm
STL
-
MAD
1 stop11h 55m
British Airways
Deal found 1/24$696
This Iberia deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/171:35 pm
MAD
-
STL
1 stop15h 39m
Iberia
lun. 4/2011:14 am
STL
-
MAD
1 stop13h 41m
Iberia
Deal found 1/24$726
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/1311:25 am
MAD
-
STL
1 stop17h 33m
British Airways
vie. 3/202:00 pm
STL
-
MAD
1 stop11h 55m
British Airways
Deal found 1/27$750
This Iberia deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/1712:40 pm
MAD
-
STL
1 stop14h 35m
Iberia
dom. 9/204:29 pm
STL
-
MAD
1 stop32h 26m
Iberia
Deal found 1/25$751
This lol.travel deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/2311:30 am
MAD
-
STL
1 stop19h 26m
Finnair
lun. 3/211:46 am
STL
-
MAD
1 stop14h 39m
Finnair
Deal found 1/26$772
This Cheapflightsfares deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/271:45 pm
MAD
-
STL
2 stops16h 14m
Lufthansa
lun. 3/26:55 pm
STL
-
MAD
2 stops15h 55m
Lufthansa
Deal found 1/24$773

Find flight deals from Madrid to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Madrid (MAD) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$667
(British Airways)

One-way from

$398
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,055
Provider with most accurate pricing for Madrid Barajas-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Madrid Barajas-Lambert-St Louis flights.
Search Deals
From Madrid Barajas to Lambert-St Louis
Search Deals
One-way flight from Madrid Barajas to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated enero 27, 2026.
Use the filters below to find and compare flights from Madrid to St. Louis that are best for you.

Fly from

Madrid

Fly to

St. Louis

Route

Depart

Return

Price

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 3/6

12:40 pm-10:58 pm

1 stop17h 18m

Lambert-St Louis

lun. 3/9

11:46 am-8:25 am

1 stop14h 39m

$667

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 2/27

12:00 pm-11:35 pm

1 stop18h 35m

Lambert-St Louis

lun. 3/2

11:46 am-9:25 am

1 stop14h 39m

$667

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

sáb. 2/14

12:40 pm-11:22 pm

1 stop17h 42m

Lambert-St Louis

sáb. 2/21

9:35 am-9:25 am

1 stop16h 50m

$685

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 3/6

12:50 pm-11:35 pm

2 stops17h 45m

Lambert-St Louis

lun. 3/9

2:00 pm-7:55 am

1 stop11h 55m

$696

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 4/17

1:35 pm-10:14 pm

1 stop15h 39m

Lambert-St Louis

lun. 4/20

11:14 am-7:55 am

1 stop13h 41m

$726

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 3/13

11:25 am-10:58 pm

1 stop17h 33m

Lambert-St Louis

vie. 3/20

2:00 pm-7:55 am

1 stop11h 55m

$750

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 2/27

1:45 pm-10:59 pm

2 stops16h 14m

Lambert-St Louis

lun. 3/2

6:55 pm-5:50 pm

2 stops15h 55m

$773

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

lun. 2/23

11:00 am-8:43 pm

2 stops16h 43m

Lambert-St Louis

lun. 3/2

3:47 pm-3:20 pm

2 stops16h 33m

$783

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 3/13

1:45 pm-11:35 pm

2 stops15h 50m

Lambert-St Louis

vie. 3/20

11:59 am-10:20 am

1 stop16h 21m

$787

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

mar. 5/5

6:45 am-10:30 am

3 stops58h 45m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 17 results
1
2
  • Most accurate provider: When it comes to deals on Madrid-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Madrid-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Madrid-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Madrid-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Madrid-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Madrid to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Madrid with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Madrid to St. Louis

What is the cheapest month to book a flight from Madrid to St. Louis?

Currently, April is the cheapest month in which you can book a flight from Madrid to St. Louis (average of $678). Flying from Madrid to St. Louis in October is currently the most expensive (average of $1,180). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Madrid to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Madrid to St. Louis?

    A quick flight from Madrid to St. Louis can take about 17h 18m. Iberia provides one of the quickest options available for as low as $667. The distance from Madrid to St. Louis is about 4414 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Madrid to St. Louis that include hotel bookings?

    Yes. In addition to deals on Madrid to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Madrid to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Madrid to St. Louis.

  • Can I find deals for business class flights from Madrid to St. Louis?

    Yes. Cheapflights offers flight deals from Madrid to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Madrid to St. Louis?

    Currently, April is the cheapest month in which you can book a flight from Madrid to St. Louis (average of $678). Flying from Madrid to St. Louis in October is currently the most expensive (average of $1,180). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Madrid to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Madrid to Kansas City flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.