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$320+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$580
(Gotogate)

One-way from

$320
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$1,347
From Lambert-St Louis to Spain
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One-way flight from Lambert-St Louis to Spain
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Highest demand for flights based on searches. 21% potential increase in price ($272 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:30 pmSTL - BCN
1 stop11h 20mAir Canada
Wed 10/112:10 pmBCN - STL
1 stop14h 47mAir Canada
Deal found 6/11$544
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 9/231:30 pmSTL - BCN
1 stop11h 20mUnited Airlines
Tue 10/712:10 pmBCN - STL
2 stops29h 39mUnited Airlines
Deal found 6/12$555
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 10/61:30 pmSTL - MAD
1 stop10h 10mUnited Airlines
Fri 10/1712:45 pmMAD - STL
2 stops29h 04mUnited Airlines
Deal found 6/12$559
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Sat 10/113:23 pmSTL - MAD
2 stops32h 17mAir Canada
Wed 10/2212:30 pmMAD - STL
2 stops34h 14mAir Canada
Deal found 6/11$570
This Iberia deal was found by Cheapflights users on 6/11. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/81:54 pmSTL - MAD
1 stop12h 11mIberia
Thu 10/161:45 pmMAD - STL
1 stop13h 34mIberia
Deal found 6/11$586
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:45 amSTL - MAD
2 stops18h 05mDelta
Wed 10/2212:40 pmMAD - STL
2 stops14h 55mDelta
Deal found 6/11$591
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/53:30 pmSTL - BIO
1 stop14h 55mLufthansa
Wed 10/156:45 amBIO - STL
1 stop13h 45mLufthansa
Deal found 6/12$592
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 10/512:25 pmSTL - BIO
2 stops22h 25mUnited Airlines
Wed 10/156:45 amBIO - STL
1 stop13h 45mUnited Airlines
Deal found 6/10$594
This Air Canada deal was found by Cheapflights users on 6/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/51:30 pmSTL - BIO
2 stops19h 35mAir Canada
Wed 10/156:45 amBIO - STL
2 stops15h 33mAir Canada
Deal found 6/12$601
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:56 amSTL - BCN
1 stop17h 34mIberia
Fri 10/1010:45 amBCN - STL
1 stop16h 38mIberia
Deal found 6/10$601
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:55 amSTL - BCN
1 stop21h 35mBritish Airways
Fri 10/1010:45 amBCN - STL
1 stop16h 38mBritish Airways
Deal found 6/10$607
This United deal was found by Cheapflights users on 6/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/48:15 amSTL - BCN
1 stop17h 05mMultiple Airlines
Wed 8/2012:10 pmBCN - STL
1 stop14h 50mMultiple Airlines
Deal found 6/12$625

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 June 12, 2025.
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. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 9/24

1:30 pm-7:50 am

1 stop11h 20m

Barcelona-El Prat

Wed 10/1

12:10 pm-7:57 pm

1 stop14h 47m

$544

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 9/23

1:30 pm-7:50 am

1 stop11h 20m

Barcelona-El Prat

Tue 10/7

12:10 pm-10:49 am

2 stops29h 39m

$555

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 10/6

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

Fri 10/17

12:45 pm-10:49 am

2 stops29h 04m

$559

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 10/11

3:23 pm-6:40 am

2 stops32h 17m

Madrid Barajas

Tue 10/21

12:30 pm-2:27 pm

2 stops32h 57m

$570

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 10/8

1:54 pm-9:05 am

1 stop12h 11m

Madrid Barajas

Thu 10/16

1:45 pm-8:19 pm

1 stop13h 34m

$586

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 10/8

6:45 am-7:50 am

2 stops18h 05m

Madrid Barajas

Wed 10/22

12:40 pm-8:35 pm

2 stops14h 55m

$591

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Sun 10/5

3:30 pm-1:25 pm

1 stop14h 55m

Bilbao

Wed 10/15

6:45 am-1:30 pm

1 stop13h 45m

$592

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Sun 10/5

12:25 pm-5:50 pm

2 stops22h 25m

Bilbao

Wed 10/15

6:45 am-1:30 pm

1 stop13h 45m

$594

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/1

9:56 am-10:30 am

1 stop17h 34m

Barcelona-El Prat

Fri 10/10

10:45 am-8:23 pm

1 stop16h 38m

$601

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Sun 10/5

1:30 pm-4:05 pm

2 stops19h 35m

Bilbao

Wed 10/15

6:45 am-3:18 pm

2 stops15h 33m

$601

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 54 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, November is the cheapest month in which you can book a flight from St. Louis to Spain (average of $543). Flying from St. Louis to Spain in June is currently the most expensive (average of $1,057). 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 STL to ES?

Find hourly flight availability from St. Louis to Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

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

Rainfall in Spain by month

Plan your trip to Spain by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Spain ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Spain when rainfall is around 0.8 in.

Temperature in Spain by month

Plan your trip to Spain by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Spain, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 June 12, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from St. Louis to Spain. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 $463 on Air Canada. Other airlines that offer cheap prices include Lufthansa from $465 and KLM from $468 one-way.

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

    Most travelers choose Lambert-St Louis - Barcelona-El Prat, Lambert-St Louis - Madrid Barajas or Lambert-St Louis - Sevilla when deciding on the best route 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, November is the cheapest month in which you can book a flight from St. Louis to Spain (average of $543). Flying from St. Louis to Spain in June is currently the most expensive (average of $1,057). 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

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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.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$468Average$751FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$530Average$1,111FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$545Average$874FlexibilityNo cancel feeOn-time70%
IberiaCheapest$566Average$947FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$583Average$1,056FlexibilityNo cancel feeOn-time71%
DeltaCheapest$602Average$1,092FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$637Average$1,113FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$673Average$1,091FlexibilityNo cancel feeOn-time67%

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