Spain

$349+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Apr 29 — May 61
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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 March 30, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:30 pm
STL
-
MAD
1 stop21h 20m
Lufthansa
Fri 10/306:00 am
MAD
-
STL
1 stop14h 55m
Lufthansa
Deal found 3/25$656
This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:50 pm
STL
-
MAD
1 stop21h 20m
Lufthansa
Wed 11/118:30 am
MAD
-
STL
2 stops21h 55m
Lufthansa
Deal found 3/25$665
This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:35 pm
STL
-
MAD
1 stop15h 30m
British Airways
Wed 10/2110:35 am
MAD
-
STL
1 stop15h 55m
British Airways
Deal found 3/25$672
This oojo deal was found by Cheapflights users on 3/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:35 pm
STL
-
MAD
1 stop15h 30m
British Airways
Fri 10/93:25 pm
MAD
-
STL
1 stop15h 16m
British Airways
Deal found 3/25$673
This oojo deal was found by Cheapflights users on 3/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:47 pm
STL
-
MAD
1 stop13h 48m
British Airways
Wed 9/301:35 pm
MAD
-
STL
1 stop13h 28m
British Airways
Deal found 3/25$681
This British Airways deal was found by Cheapflights users on 3/26. 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.
Wed 10/288:05 pm
STL
-
MAD
1 stop11h 20m
British Airways
Wed 11/1112:00 pm
MAD
-
STL
2 stops17h 29m
British Airways
Deal found 3/26$699
This Cheapflightsfares deal was found by Cheapflights users on 3/29. 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.
Tue 10/209:35 pm
STL
-
BCN
1 stop15h 55m
Multiple Airlines
Fri 10/3010:40 am
BCN
-
STL
1 stop15h 06m
Multiple Airlines
Deal found 3/29$749
This United Airlines deal was found by Cheapflights users on 3/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:18 pm
STL
-
BIO
2 stops39h 52m
United Airlines
Wed 11/1112:45 pm
BIO
-
STL
2 stops26h 52m
United Airlines
Deal found 3/28$752
This Cheapflightsfares deal was found by Cheapflights users on 3/26. 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 10/79:35 pm
STL
-
BCN
1 stop15h 55m
British Airways
Tue 10/2010:15 am
BCN
-
STL
1 stop16h 15m
British Airways
Deal found 3/26$760
This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/81:20 pm
STL
-
BCN
1 stop12h 30m
Finnair
Sat 11/1410:40 am
BCN
-
STL
1 stop15h 50m
Finnair
Deal found 3/25$761
This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/203:30 pm
STL
-
BCN
1 stop17h 05m
Lufthansa
Sun 9/276:40 am
BCN
-
STL
1 stop13h 45m
Lufthansa
Deal found 3/25$766
This Cheapflightsfares deal was found by Cheapflights users on 3/29. 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.
Tue 10/206:49 pm
STL
-
BCN
2 stops16h 26m
Lufthansa
Fri 10/306:50 am
BCN
-
STL
1 stop14h 05m
Lufthansa
Deal found 3/29$770

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 March 30, 2026.

Round-trip from

$681
(oojo)

One-way from

$349
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$1,020
From Lambert-St Louis to Spain
One-way flight from Lambert-St Louis to Spain
Highest demand for flights based on searches. 28% potential increase in price ($339 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in March 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 March 30, 2026.
Use the filters below to find and compare flights from St. Louis to Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 9/21

9:00 am-12:15 pm

1 stop20h 15m

Madrid Barajas

Wed 9/30

9:50 am-3:57 pm

1 stop13h 07m

$736

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 9/13

10:33 am-1:20 pm

1 stop19h 47m

Barcelona-El Prat

Tue 9/15

6:30 pm-8:39 am

1 stop21h 09m

$821

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Fri 4/24

11:06 am-1:00 pm

1 stop18h 54m

Barcelona-El Prat

Fri 5/1

6:30 pm-11:13 am

1 stop23h 43m

$853

St. LouisSeville

STL - SVQ

STLSVQ

Lambert-St Louis

Tue 9/1

4:13 pm-4:30 pm

2 stops17h 17m

Sevilla

Wed 9/9

7:30 am-8:50 pm

2 stops20h 20m

$879

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Mon 5/11

7:01 pm-4:30 pm

2 stops14h 29m

Bilbao

Mon 5/18

4:50 pm-4:10 pm

2 stops30h 20m

$883

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Sun 4/26

4:30 pm-4:25 pm

2 stops16h 55m

Ibiza

Sun 5/3

6:15 pm-4:41 pm

2 stops29h 26m

$888
Quickest round-trip

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Tue 5/12

6:04 pm-4:30 pm

2 stops15h 26m

Bilbao

Tue 5/19

6:45 am-4:46 pm

2 stops17h 01m

$888

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Sat 5/9

2:12 pm-5:00 pm

2 stops43h 48m

Ibiza

Sat 5/16

7:45 pm-4:00 pm

2 stops27h 15m

$891

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Mon 5/18

6:15 pm-4:35 pm

2 stops15h 20m

Valencia

Wed 5/27

6:35 am-5:16 pm

2 stops17h 41m

$903

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Sun 5/10

9:21 am-5:55 pm

2 stops25h 34m

Bilbao

Sun 5/17

6:50 am-1:25 pm

1 stop13h 35m

$905

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 53 resultsSorted by cheapest first
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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 March 30, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andAir 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.

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

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

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

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

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

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

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

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

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

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

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

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 $879, United Airlines can have you in Spain from St. Louis in 17h 17m. St. Louis and Spain are separated by a distance of 4412 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 $205 on United Airlines. Other airlines that offer cheap prices include Air Canada from $266 and British Airways from $291 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

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

Top 7 airlines flying from St. Louis to Spain

Discover the top 7 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 March 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$480Average$1,170FlexibilityNo cancel feeOn-time76%
DeltaCheapest$489Average$783FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$516Average$732FlexibilityNo cancel feeOn-time70%
IberiaCheapest$552Average$773FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$560Average$932FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$576Average$1,009FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$582Average$875FlexibilityNo cancel feeOn-time71%

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