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St. Louis

$375+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — STL
ago. 18 — ago. 251
lun. 8/18
lun. 8/25
1 adult, Economy
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Cheap 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 agosto 13, 2025.

Round-trip from

$658
(FlightHub)

One-way from

$375
(Kiwi.com)

Popular in

January

Cheapest in

October

Average price

$1,141
From Spain to Lambert-St Louis
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One-way flight from Spain to Lambert-St Louis
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Highest demand for flights based on searches. 5% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 agosto 13, 2025.

This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/127:10 pmBCN - STL
2 stops35h 29mScandinavian Airlines
lun. 11/174:00 pmSTL - BCN
2 stops19h 20mScandinavian Airlines
Deal found 8/13$658
This lol.travel deal was found by Cheapflights users on 8/11. 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.
vie. 8/296:50 amBCN - STL
1 stop13h 40mUnited Airlines
mar. 9/28:15 amSTL - BCN
1 stop17h 05mUnited Airlines
Deal found 8/11$783
This United Airlines deal was found by Cheapflights users on 8/12. 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.
sáb. 12/136:05 amMAD - STL
2 stops22h 53mUnited Airlines
sáb. 1/175:18 pmSTL - MAD
2 stops55h 42mUnited Airlines
Deal found 8/12$794
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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.
mié. 11/1212:30 pmBCN - STL
1 stop15h 25mIberia
lun. 11/1710:45 amSTL - BCN
1 stop15h 15mIberia
Deal found 8/11$794
This Delta deal was found by Cheapflights users on 8/12. 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.
sáb. 12/1311:00 amMAD - STL
1 stop17h 59mDelta
sáb. 1/1712:10 pmSTL - MAD
2 stops16h 20mDelta
Deal found 8/12$803
This lol.travel deal was found by Cheapflights users on 8/12. 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.
vie. 8/2911:15 amMAD - STL
1 stop14h 44mUnited Airlines
mar. 9/28:15 amSTL - MAD
1 stop16h 50mUnited Airlines
Deal found 8/12$804
This lol.travel deal was found by Cheapflights users on 8/11. 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.
vie. 8/2911:15 amMAD - STL
1 stop14h 44mUnited Airlines
mié. 9/34:05 pmSTL - MAD
1 stop33h 15mUnited Airlines
Deal found 8/11$808
This United Airlines deal was found by Cheapflights users on 8/12. 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.
jue. 10/26:45 amBIO - STL
2 stops20h 12mUnited Airlines
vie. 10/1712:25 pmSTL - BIO
2 stops22h 25mUnited Airlines
Deal found 8/12$812
This lol.travel deal was found by Cheapflights users on 8/12. 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.
vie. 8/296:50 amBCN - STL
1 stop13h 40mLufthansa
mar. 9/212:35 pmSTL - BCN
2 stops14h 00mLufthansa
Deal found 8/12$813
This United Airlines deal was found by Cheapflights users on 8/12. 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.
vie. 9/196:45 amBIO - STL
2 stops20h 12mUnited Airlines
vie. 9/263:23 pmSTL - BIO
2 stops20h 02mUnited Airlines
Deal found 8/12$814
This United Airlines deal was found by Cheapflights users on 8/12. 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.
mié. 11/121:35 pmBCN - STL
2 stops33h 11mUnited Airlines
lun. 11/176:43 pmSTL - BCN
1 stop11h 22mUnited Airlines
Deal found 8/12$818
This United Airlines deal was found by Cheapflights users on 8/10. 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.
jue. 11/66:30 amBIO - STL
2 stops19h 46mUnited Airlines
lun. 11/103:14 pmSTL - BIO
2 stops18h 26mUnited Airlines
Deal found 8/10$820

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 agosto 13, 2025.
Use the filters below to find and compare flights from Spain to St. Louis that are best for you.

Fly from

Spain

Fly to

St. Louis

Route

Depart

Return

Price

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

mié. 11/12

7:10 pm-11:39 pm

2 stops35h 29m

Lambert-St Louis

lun. 11/17

4:00 pm-6:20 pm

2 stops19h 20m

$658

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

vie. 8/29

6:50 am-1:30 pm

1 stop13h 40m

Lambert-St Louis

mar. 9/2

8:15 am-8:20 am

1 stop17h 05m

$783

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

mié. 11/12

12:30 pm-8:55 pm

1 stop15h 25m

Lambert-St Louis

lun. 11/17

10:45 am-9:00 am

1 stop15h 15m

$794

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

sáb. 12/13

6:05 am-9:58 pm

2 stops22h 53m

Lambert-St Louis

sáb. 1/17

5:18 pm-8:00 am

2 stops55h 42m

$794

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

sáb. 12/13

11:00 am-9:59 pm

1 stop17h 59m

Lambert-St Louis

sáb. 1/17

12:10 pm-11:30 am

2 stops16h 20m

$803

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 8/29

11:15 am-6:59 pm

1 stop14h 44m

Lambert-St Louis

mar. 9/2

8:15 am-8:05 am

1 stop16h 50m

$804

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 8/29

11:15 am-10:02 am

1 stop29h 47m

Lambert-St Louis

mié. 9/3

8:15 am-11:50 am

2 stops20h 35m

$808

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

vie. 9/12

11:15 am-6:59 pm

1 stop14h 44m

Lambert-St Louis

vie. 9/19

7:04 pm-4:45 pm

2 stops38h 41m

$810

BilbaoSt. Louis

BIO - STL

BIOSTL

Bilbao

jue. 10/2

6:45 am-7:57 pm

2 stops20h 12m

Lambert-St Louis

vie. 10/17

12:25 pm-5:50 pm

2 stops22h 25m

$812

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

vie. 8/29

6:50 am-1:30 pm

1 stop13h 40m

Lambert-St Louis

mar. 9/2

12:35 pm-9:35 am

2 stops14h 00m

$813

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 47 results
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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, August is the cheapest month in which you can book a flight from Spain to St. Louis (average of $311). Flying from Spain to St. Louis in March is currently the most expensive (average of $356). 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.

What is the cheapest time of day to fly from ES to STL?

Find hourly flight availability from Spain to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 13, 2025.

When flying from Spain to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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

    While some choose either Madrid Barajas - Lambert-St Louis or Bilbao - Lambert-St Louis, Barcelona-El Prat - 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, August is the cheapest month in which you can book a flight from Spain to St. Louis (average of $311). Flying from Spain to St. Louis in March is currently the most expensive (average of $356). 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
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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