Spain

$348+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Jun 11 — Jun 181
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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 May 12, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 5/8. 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 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 5/8$721
This oojo deal was found by Cheapflights users on 5/11. 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.
Wed 10/219:35 pm
STL
-
MAD
1 stop15h 30m
British Airways
Fri 10/3011:00 am
MAD
-
STL
1 stop18h 31m
British Airways
Deal found 5/11$723
This oojo deal was found by Cheapflights users on 5/9. 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 9/279:40 pm
STL
-
MAD
1 stop15h 25m
British Airways
Tue 10/69:00 pm
MAD
-
STL
1 stop29h 30m
British Airways
Deal found 5/9$726
This British Airways deal was found by Cheapflights users on 5/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:35 pm
STL
-
MAD
1 stop12h 55m
British Airways
Fri 10/93:55 pm
MAD
-
STL
1 stop14h 46m
British Airways
Deal found 5/11$728
This oojo deal was found by Cheapflights users on 5/11. 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.
Mon 8/174:57 pm
STL
-
MAD
1 stop13h 33m
British Airways
Tue 12/2212:40 pm
MAD
-
STL
1 stop18h 15m
British Airways
Deal found 5/11$731
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:47 am
STL
-
MAD
1 stop15h 08m
American Airlines
Fri 12/1812:00 pm
MAD
-
STL
1 stop18h 59m
American Airlines
Deal found 5/10$736
This oojo deal was found by Cheapflights users on 5/11. 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.
Sun 11/226:45 pm
STL
-
MAD
1 stop28h 00m
British Airways
Fri 11/271:15 pm
MAD
-
STL
1 stop14h 40m
British Airways
Deal found 5/11$737
This Air Canada deal was found by Cheapflights users on 5/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:55 am
STL
-
VLC
2 stops19h 40m
Air Canada
Wed 10/216:00 am
VLC
-
STL
2 stops19h 41m
Air Canada
Deal found 5/7$748
This British Airways deal was found by Cheapflights users on 5/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:45 am
STL
-
MAD
1 stop15h 10m
British Airways
Wed 11/1812:50 pm
MAD
-
STL
2 stops18h 06m
British Airways
Deal found 5/7$748
This British Airways deal was found by Cheapflights users on 5/8. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:45 am
STL
-
MAD
1 stop15h 10m
British Airways
Wed 11/1112:50 pm
MAD
-
STL
2 stops18h 06m
British Airways
Deal found 5/8$749
This Air Canada deal was found by Cheapflights users on 5/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:55 am
STL
-
VLC
2 stops19h 40m
Air Canada
Tue 10/206:00 am
VLC
-
STL
2 stops39h 00m
Air Canada
Deal found 5/11$754
This United Airlines deal was found by Cheapflights users on 5/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:30 pm
STL
-
VLC
1 stop13h 25m
United Airlines
Wed 10/2112:55 pm
VLC
-
STL
2 stops26h 42m
United Airlines
Deal found 5/7$755

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 May 12, 2026.

Round-trip from

$721
(Cheapflightsfares)

One-way from

$348
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$898
From Lambert-St Louis to Spain
One-way flight from Lambert-St Louis to Spain
Highest demand for flights based on searches. 27% potential increase in price ($316 potential increase over avg. RT price).
Cheapest flight prices on average. 7% potential price decrease ($58 potential savings vs. average RT price).
Average for round-trip flights in May 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 May 12, 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. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 7/29

6:00 am-1:15 pm

1 stop24h 15m

Barcelona-El Prat

Fri 8/14

1:15 pm-2:02 pm

1 stop31h 47m

$875

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 7/29

2:32 pm-12:05 pm

2 stops14h 33m

Barcelona-El Prat

Fri 8/14

12:50 pm-11:23 pm

1 stop17h 33m

$887

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Sun 8/2

5:33 pm-11:25 pm

2 stops22h 52m

Bilbao

Wed 8/12

12:30 pm-11:38 pm

1 stop18h 08m

$888

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 8/5

1:13 pm-2:25 pm

2 stops18h 12m

Barcelona-El Prat

Tue 8/11

6:40 am-9:22 pm

2 stops21h 42m

$904

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 8/10

6:00 am-8:00 am

2 stops19h 00m

Barcelona-El Prat

Mon 8/24

10:25 am-1:25 pm

1 stop34h 00m

$908

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 8/3

5:58 pm-1:30 pm

1 stop12h 32m

Madrid Barajas

Mon 8/10

5:30 pm-9:13 am

1 stop22h 43m

$958

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sat 7/25

4:53 pm-9:00 am

1 stop33h 07m

Barcelona-El Prat

Wed 8/5

1:15 pm-2:02 pm

1 stop31h 47m

$963

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 7/5

9:22 am-6:20 am

2 stops13h 58m

Madrid Barajas

Tue 7/21

2:35 pm-11:53 pm

2 stops16h 18m

$975

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Tue 8/4

2:10 pm-1:30 pm

2 stops16h 20m

Ibiza

Mon 8/10

10:05 pm-2:33 pm

2 stops23h 28m

$990

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Fri 7/24

6:00 am-1:15 pm

1 stop24h 15m

Barcelona-El Prat

Wed 8/5

1:15 pm-2:02 pm

1 stop31h 47m

$1,022

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 50 resultsSorted by cheapest first
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5

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

How far ahead should I book a flight from St. Louis to Spain?

To ensure you get the cheapest price possible for a flight from St. Louis to Spain, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, December is the cheapest month in which you can book a flight from St. Louis to Spain (average of $414). Flying from St. Louis to Spain in June is currently the most expensive (average of $810). 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 May 12, 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.

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 $975, United Airlines can have you in Spain from St. Louis in 13h 58m. St. Louis and Spain are separated by a distance of 4414 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, December is the cheapest month in which you can book a flight from St. Louis to Spain (average of $414). Flying from St. Louis to Spain in June is currently the most expensive (average of $810). 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 May 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$480Average$1,079FlexibilityNo cancel feeOn-time76%
DeltaCheapest$489Average$767FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$516Average$801FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$560Average$1,023FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$560Average$961FlexibilityNo cancel feeOn-time69%
IberiaCheapest$568Average$759FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$582Average$878FlexibilityNo cancel feeOn-time71%

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