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$229+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
dic. 12 — dic. 191
vie. 12/12
vie. 12/19
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 noviembre 12, 2025.

Round-trip from

$403
(Rumbo)

One-way from

$229
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$666
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. 23% potential increase in price ($288 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 November 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 noviembre 12, 2025.

This Rumbo deal was found by Cheapflights users on 11/10. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/87:02 pmSTL - BCN
1 stop30h 38mVirgin Atlantic
mié. 12/249:30 amBCN - STL
1 stop13h 58mVirgin Atlantic
Deal found 11/10$403
This Flighttix deal was found by Cheapflights users on 11/11. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/81:57 pmSTL - MAD
1 stop12h 18mVirgin Atlantic
mié. 12/2411:15 amMAD - STL
1 stop14h 49mVirgin Atlantic
Deal found 11/11$426
This Delta deal was found by Cheapflights users on 11/11. 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.
lun. 12/89:30 amSTL - MAD
1 stop16h 45mDelta
mié. 12/2411:15 amMAD - STL
1 stop19h 23mDelta
Deal found 11/11$429
This KLM deal was found by Cheapflights users on 11/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/811:40 amSTL - MAD
1 stop14h 35mKLM
mié. 12/2411:15 amMAD - STL
1 stop19h 23mKLM
Deal found 11/10$431
This Delta deal was found by Cheapflights users on 11/12. 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.
mié. 11/266:40 amSTL - BCN
2 stops18h 20mDelta
jue. 12/410:55 amBCN - STL
1 stop19h 47mDelta
Deal found 11/12$438
This KLM deal was found by Cheapflights users on 11/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/85:12 pmSTL - BCN
1 stop32h 28mKLM
mié. 12/249:30 amBCN - STL
1 stop13h 58mKLM
Deal found 11/11$439
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/89:50 amSTL - BCN
2 stops16h 00mDelta
mié. 12/249:30 amBCN - STL
1 stop16h 34mDelta
Deal found 11/10$445
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1812:31 pmSTL - BCN
2 stops20h 49mLufthansa
mar. 11/256:30 pmBCN - STL
1 stop26h 25mLufthansa
Deal found 11/11$453
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/187:05 amSTL - BCN
1 stop18h 35mDelta
mar. 11/256:00 amBCN - STL
2 stops18h 09mDelta
Deal found 11/10$461
This Booking.com deal was found by Cheapflights users on 11/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/810:00 amSTL - BCN
2 stops16h 35mAir Canada
mié. 12/241:35 pmBCN - STL
2 stops35h 19mAir Canada
Deal found 11/10$463
This United deal was found by Cheapflights users on 11/11. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/37:00 amSTL - MAD
1 stop19h 15mMultiple Airlines
vie. 12/121:35 pmMAD - STL
2 stops34h 28mMultiple Airlines
Deal found 11/11$465
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:25 amSTL - MAD
2 stops14h 50mUnited Airlines
vie. 12/121:35 pmMAD - STL
2 stops31h 50mUnited Airlines
Deal found 11/11$470

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 noviembre 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. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

lun. 12/8

9:30 am-9:15 am

1 stop16h 45m

Madrid Barajas

mié. 12/24

11:15 am-11:38 pm

1 stop19h 23m

$429

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

lun. 12/8

11:40 am-9:15 am

1 stop14h 35m

Madrid Barajas

mié. 12/24

11:15 am-11:38 pm

1 stop19h 23m

$431

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

mié. 11/26

6:40 am-8:00 am

2 stops18h 20m

Barcelona-El Prat

jue. 12/4

10:55 am-11:42 pm

1 stop19h 47m

$438

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

lun. 12/8

9:50 am-8:50 am

2 stops16h 00m

Barcelona-El Prat

mié. 12/24

9:30 am-7:04 pm

1 stop16h 34m

$445

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

mié. 12/10

8:30 am-8:20 am

1 stop16h 50m

Barcelona-El Prat

mar. 12/16

1:35 pm-3:40 pm

2 stops33h 05m

$461

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

lun. 12/8

8:30 am-9:35 am

2 stops18h 05m

Barcelona-El Prat

mié. 12/24

1:35 pm-2:26 pm

2 stops31h 51m

$461

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

lun. 12/8

5:44 pm-9:15 am

1 stop32h 31m

Madrid Barajas

mié. 12/24

1:35 pm-12:27 pm

2 stops53h 52m

$470

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

lun. 12/8

4:05 pm-8:00 am

2 stops32h 55m

Madrid Barajas

mié. 12/24

1:35 pm-2:26 pm

2 stops31h 51m

$474

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

lun. 12/8

6:42 pm-9:15 am

2 stops31h 33m

Madrid Barajas

mié. 12/24

1:45 pm-2:26 pm

2 stops31h 41m

$480

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

jue. 12/11

5:10 am-7:05 am

1 stop18h 55m

Barcelona-El Prat

dom. 12/14

12:30 pm-8:21 pm

1 stop14h 51m

$484

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 59 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 $515). 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.

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 noviembre 12, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 8% on flights from St. Louis to Spain by exploring options for tickets at noon.

What is the cheapest day to fly from St. Louis to Spain?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Spain. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Spain flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 noviembre 12, 2025.
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.
United Airlines
7.4
Good
9,015 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,015 reviews
United Airlines
7.4
Good
9,015 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,049 reviews
United Airlines
7.4
Good
9,015 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,443 reviews
United Airlines
7.4
Good
9,015 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Iberia
7.0
Good
3,009 reviews
United Airlines
7.4
Good
9,015 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,513 reviews
United Airlines
7.4
Good
9,015 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 $431, Delta can have you in Spain from St. Louis in 14h 35m. 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 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 - Santa Cruz de Tenerife Tenerife-Norte 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, January is the cheapest month in which you can book a flight from St. Louis to Spain (average of $515). 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

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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 noviembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$524Average$1,155FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$546Average$833FlexibilityNo cancel feeOn-time70%
DeltaCheapest$552Average$899FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$578Average$976FlexibilityNo cancel feeOn-time69%
IberiaCheapest$586Average$931FlexibilityNo cancel feeOn-time77%
KLMCheapest$590Average$745FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$624Average$1,093FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$636Average$1,080FlexibilityNo cancel feeOn-time71%

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