Spain

$230+ Cheap flights from St. Louis (STL) to Spain

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Mar 13 — Mar 201
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Cheap flight deals from St. Louis to Spain

Cheapest flights from St. Louis to Spain
Explore the most affordable flight options available from St. Louis to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This oojo deal was found by Cheapflights users on 2/9. 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.
Sun 4/192:12 pm
STL
-
VLC
2 stops22h 23m
British Airways
Tue 4/288:30 pm
VLC
-
STL
1 stop30h 00m
British Airways
Deal found 2/9$471
This Mytrip deal was found by Cheapflights users on 2/7. 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.
Mon 4/204:05 pm
STL
-
BIO
2 stops24h 20m
Multiple Airlines
Wed 4/296:50 am
BIO
-
STL
1 stop13h 35m
Multiple Airlines
Deal found 2/7$475
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Wed 4/228:21 am
STL
-
MAD
2 stops16h 44m
United Airlines
Wed 4/2912:45 pm
MAD
-
STL
2 stops41h 14m
United Airlines
Deal found 2/8$476
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Mon 4/2011:15 am
STL
-
BIO
2 stops21h 45m
United Airlines
Wed 4/296:50 am
BIO
-
STL
1 stop13h 35m
United Airlines
Deal found 2/8$479
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:33 pm
STL
-
BCN
2 stops16h 42m
British Airways
Tue 4/285:25 pm
BCN
-
STL
1 stop33h 05m
British Airways
Deal found 2/11$481
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Mon 4/138:30 am
STL
-
MAD
1 stop16h 35m
United Airlines
Wed 4/225:55 am
MAD
-
STL
1 stop14h 30m
United Airlines
Deal found 2/9$482
This FlightHub deal was found by Cheapflights users on 2/8. 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.
Sun 4/193:30 pm
STL
-
BIO
1 stop18h 30m
Lufthansa
Wed 4/296:50 am
BIO
-
STL
1 stop13h 35m
Lufthansa
Deal found 2/8$485
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Tue 4/149:10 am
STL
-
BCN
2 stops16h 50m
United Airlines
Wed 4/226:40 am
BCN
-
STL
1 stop13h 45m
United Airlines
Deal found 2/9$485
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 4/127:45 am
STL
-
BCN
1 stop22h 30m
United Airlines
Wed 4/226:40 am
BCN
-
STL
1 stop13h 45m
United Airlines
Deal found 2/9$486
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 4/127:45 am
STL
-
MAD
2 stops17h 20m
United Airlines
Wed 4/225:55 am
MAD
-
STL
1 stop14h 30m
United Airlines
Deal found 2/9$486
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Wed 4/223:30 pm
STL
-
BIO
1 stop18h 45m
United Airlines
Wed 4/296:50 am
BIO
-
STL
1 stop13h 35m
United Airlines
Deal found 2/8$487
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 4/127:45 am
STL
-
BCN
1 stop22h 30m
United Airlines
Tue 4/213:15 pm
BCN
-
STL
1 stop12h 53m
United Airlines
Deal found 2/9$487

Find flight deals from St. Louis to Spain

Keep the following information in mind while searching for St. Louis to Spain flight deals. Data was last updated February 11, 2026.

Round-trip from

$471
(oojo)

One-way from

$230
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$683
From Lambert-St Louis to Spain
One-way flight from Lambert-St Louis to Spain
Highest demand for flights based on searches. 26% potential increase in price ($308 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Spain 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 February 11, 2026.
Use the filters below to find and compare flights from St. Louis to Spain that are best for you.

Fly from

St. Louis

Fly to

Spain

Route

Depart

Return

Price

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sun 4/19

2:12 pm-7:35 pm

2 stops22h 23m

Valencia

Tue 4/28

8:30 pm-7:30 pm

1 stop30h 00m

$471

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Mon 4/20

4:05 pm-11:25 pm

2 stops24h 20m

Bilbao

Wed 4/29

6:50 am-3:24 pm

2 stops15h 34m

$476

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Mon 4/20

11:15 am-4:00 pm

2 stops21h 45m

Bilbao

Wed 4/29

6:50 am-1:25 pm

1 stop13h 35m

$479

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 4/14

11:45 am-2:15 pm

2 stops19h 30m

Barcelona-El Prat

Tue 4/28

3:15 pm-7:30 pm

1 stop35h 15m

$481

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 4/14

9:10 am-9:00 am

2 stops16h 50m

Madrid Barajas

Wed 4/22

5:55 am-1:25 pm

1 stop14h 30m

$486

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 4/22

7:45 am-8:05 am

2 stops17h 20m

Madrid Barajas

Wed 4/29

5:55 am-1:25 pm

1 stop14h 30m

$486

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 4/12

7:03 am-12:50 pm

1 stop22h 47m

Barcelona-El Prat

Thu 4/23

11:00 am-11:34 pm

1 stop19h 34m

$487

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Mon 4/20

7:45 am-5:55 pm

2 stops27h 10m

Bilbao

Thu 4/30

6:50 am-10:59 pm

2 stops23h 09m

$489

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 3/9

10:12 am-8:05 am

1 stop15h 53m

Madrid Barajas

Mon 3/16

10:05 am-11:58 pm

1 stop19h 53m

$490

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 4/13

12:45 pm-9:55 am

1 stop14h 10m

Madrid Barajas

Thu 4/23

12:45 pm-11:34 pm

1 stop17h 49m

$491

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 58 results
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Best time to book a flight from St. Louis to Spain

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

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Spain (average of $487). Flying from St. Louis to Spain in June is currently the most expensive (average of $907). 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.

Reviews of airlines servicing Spain

Get insights into the airlines that provide service to Spain. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Spain. Reviews last updated February 11, 2026.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Air Canada from St. Louis to Spain by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Spain. 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 from for flights from St. Louis to Spain?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Spain. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    For as low as $479, British Airways can have you in Spain from St. Louis in 21h 45m. St. Louis and Spain are separated by a distance of 4348 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    One-way options have recently been found by users for as low as $299 on Air Canada. Other airlines that offer cheap prices include United Airlines from $299 and American Airlines from $313 one-way.

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

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Spain (average of $487). Flying from St. Louis to Spain in June is currently the most expensive (average of $907). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Spain

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from St. Louis to Spain

Discover the top 8 airlines that operate flights from St. Louis to Spain. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$482Average$1,083FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$516Average$775FlexibilityNo cancel feeOn-time70%
DeltaCheapest$552Average$873FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$567Average$952FlexibilityNo cancel feeOn-time69%
IberiaCheapest$580Average$927FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$585Average$962FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$593Average$1,077FlexibilityNo cancel feeOn-time67%
KLMCheapest$634Average$782FlexibilityNo cancel feeOn-time75%

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