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St. Louis

$365+ Cheap flights from Spain 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — STL
Jul 30 — Aug 61
Thu 7/30
Thu 8/6
1 adult, Economy
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Cheap flight deals from Spain to St. Louis

Cheapest flights from Spain to St. Louis
Explore the most affordable flight options available from Spain to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:55 am
MAD
-
STL
2 stops16h 40m
Multiple Airlines
Tue 10/133:30 pm
STL
-
MAD
1 stop17h 40m
Multiple Airlines
Deal found 6/28$801
This Justfly.com deal was found by Cheapflights users on 6/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:35 pm
MAD
-
STL
2 stops35h 07m
Scandinavian Airlines
Tue 10/131:30 pm
STL
-
MAD
2 stops21h 10m
Scandinavian Airlines
Deal found 6/28$839
This Scandinavian Airlines deal was found by Cheapflights users on 6/25. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 pm
AGP
-
STL
2 stops36h 09m
Scandinavian Airlines
Mon 11/161:30 pm
STL
-
AGP
2 stops21h 10m
Scandinavian Airlines
Deal found 6/25$855
This Cheapflightsfares deal was found by Cheapflights users on 6/29. 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.
Wed 9/166:50 am
BIO
-
STL
1 stop13h 35m
Lufthansa
Wed 9/303:30 pm
STL
-
BIO
1 stop18h 45m
Lufthansa
Deal found 6/29$866
This Cheapflightsfares deal was found by Cheapflights users on 6/28. 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.
Thu 9/1710:50 am
MAD
-
STL
1 stop19h 48m
Lufthansa
Tue 10/1312:20 pm
STL
-
MAD
1 stop13h 40m
Lufthansa
Deal found 6/28$897
This United Airlines deal was found by Cheapflights users on 6/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:20 am
MAD
-
STL
2 stops22h 18m
United Airlines
Mon 9/710:53 am
STL
-
MAD
2 stops15h 07m
United Airlines
Deal found 6/25$910
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:30 am
MAD
-
STL
2 stops40h 41m
Multiple Airlines
Wed 4/213:30 pm
STL
-
MAD
1 stop21h 20m
Multiple Airlines
Deal found 6/25$916
This Mytrip deal was found by Cheapflights users on 6/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:10 pm
BIO
-
STL
3 stops33h 10m
Multiple Airlines
Wed 9/308:55 am
STL
-
BIO
3 stops26h 50m
Multiple Airlines
Deal found 6/29$952
This Condor deal was found by Cheapflights users on 6/30. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/248:00 am
BCN
-
STL
2 stops19h 55m
Multiple Airlines
Tue 7/2810:15 am
STL
-
BCN
2 stops28h 55m
Multiple Airlines
Deal found 6/30$976
This oojo deal was found by Cheapflights users on 6/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:35 pm
MAD
-
STL
1 stop12h 52m
British Airways
Sat 9/121:25 pm
STL
-
MAD
1 stop33h 05m
British Airways
Deal found 6/27$982
This Cheapflightsfares deal was found by Cheapflights users on 6/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:50 am
BCN
-
STL
1 stop13h 55m
Lufthansa
Wed 1/611:45 am
STL
-
BCN
1 stop13h 35m
Lufthansa
Deal found 6/26$1,030
This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1611:15 am
BCN
-
STL
2 stops19h 24m
Delta
Wed 1/64:13 pm
STL
-
BCN
2 stops17h 47m
Delta
Deal found 6/25$1,040

Find flight deals from Spain to St. Louis

Keep the following information in mind while searching for Spain to St. Louis flight deals. Data was last updated June 30, 2026.

Round-trip from

$801
(Kiwi.com)

One-way from

$365
(Trip.com)

Popular in

August

Cheapest in

November
From Spain to Lambert-St Louis
Search Deals
One-way flight from Spain to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Spain 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 June 30, 2026.
Use the filters below to find and compare flights from Spain to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MálagaSt. Louis

AGP - STL

AGPSTL

Malaga

Thu 11/12

6:30 pm-11:39 pm

2 stops36h 09m

Lambert-St Louis

Mon 11/16

1:30 pm-5:40 pm

2 stops21h 10m

$855

BilbaoSt. Louis

BIO - STL

BIOSTL

Bilbao

Wed 9/16

6:50 am-1:25 pm

1 stop13h 35m

Lambert-St Louis

Wed 9/30

3:30 pm-5:15 pm

1 stop18h 45m

$866

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 9/3

8:20 am-11:38 pm

2 stops22h 18m

Lambert-St Louis

Mon 9/7

10:53 am-9:00 am

2 stops15h 07m

$911

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Wed 7/29

7:00 am-8:30 pm

2 stops20h 30m

Lambert-St Louis

Wed 8/5

10:25 am-1:40 pm

2 stops20h 15m

$1,013

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 12/16

6:50 am-1:45 pm

1 stop13h 55m

Lambert-St Louis

Wed 1/6

1:00 pm-11:05 am

2 stops15h 05m

$1,033

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 12/16

11:15 am-11:39 pm

2 stops19h 24m

Lambert-St Louis

Wed 1/6

4:13 pm-5:00 pm

2 stops17h 47m

$1,040

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 12/16

12:00 pm-8:21 pm

1 stop15h 21m

Lambert-St Louis

Wed 1/6

9:33 am-9:10 am

1 stop16h 37m

$1,048

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 8/6

8:00 am-7:45 pm

2 stops18h 45m

Lambert-St Louis

Tue 8/11

10:25 am-10:10 pm

2 stops28h 45m

$1,054

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Fri 7/10

9:20 am-11:53 pm

2 stops21h 33m

Lambert-St Louis

Fri 7/31

5:36 pm-5:10 pm

2 stops16h 34m

$1,056

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Sat 7/25

6:10 am-8:37 pm

2 stops21h 27m

Lambert-St Louis

Sat 8/1

6:04 pm-5:10 pm

2 stops16h 06m

$1,063

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 36 resultsSorted by cheapest first
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Best time to book a flight from Spain to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Spain 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 Spain to St. Louis

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

Currently, April is the cheapest month in which you can book a flight from Spain to St. Louis (average of $526). Flying from Spain to St. Louis in July is currently the most expensive (average of $1,064). 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 Spain to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Spain?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Spain.

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

    There are many flights that can get you from Spain to St. Louis in 13h 35m. Fly via Scandinavian Airlines, Lufthansa, or United Airlines to get the fastest option. Spain and St. Louis are separated by a distance of 4348 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Spain to St. Louis one-way?

    The cheapest airlines for a one-way flight from Spain to St. Louis are American Airlines ($458), Iberia ($533), and British Airways ($539).

  • What are the most popular routes from Spain to St. Louis?

    While some choose either Madrid Barajas - Lambert-St Louis or Barcelona-El Prat - Lambert-St Louis, Malaga - Lambert-St Louis is the most popular route from Spain to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Spain 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 Spain to St. Louis?

    Currently, April is the cheapest month in which you can book a flight from Spain to St. Louis (average of $526). Flying from Spain to St. Louis in July is currently the most expensive (average of $1,064). 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
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington

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