HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Spain

$304+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Spain with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 julio 29, 2025.

Round-trip from

$510
(eDestinos)

One-way from

$304
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,186
From Lambert-St Louis to Spain
Search Deals
One-way flight from Lambert-St Louis to Spain
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($319 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 julio 29, 2025.

This eDestinos deal was found by Cheapflights users on 7/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/144:34 pmSTL - BCN
1 stop10h 56mIberia
vie. 10/242:00 pmBCN - STL
1 stop13h 20mIberia
Deal found 7/27$510
This lol.travel deal was found by Cheapflights users on 7/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/227:04 pmSTL - BCN
2 stops29h 46mUnited Airlines
mié. 10/812:10 pmBCN - STL
1 stop14h 47mUnited Airlines
Deal found 7/28$525
This AirNGo deal was found by Cheapflights users on 7/28. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/221:30 pmSTL - BCN
1 stop11h 20mAir Canada
mié. 10/812:10 pmBCN - STL
1 stop14h 47mAir Canada
Deal found 7/28$537
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/227:04 pmSTL - BCN
2 stops16h 06mLufthansa
mié. 10/86:50 amBCN - STL
1 stop13h 40mLufthansa
Deal found 7/29$552
This Booking.com deal was found by Cheapflights users on 7/27. 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.
dom. 9/219:15 amSTL - MAD
1 stop16h 05mAir Canada
mar. 10/712:30 pmMAD - STL
1 stop33h 48mAir Canada
Deal found 7/27$555
This eDestinos deal was found by Cheapflights users on 7/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/312:54 pmSTL - MAD
1 stop12h 01mIberia
lun. 12/812:40 pmMAD - STL
1 stop16h 42mIberia
Deal found 7/27$559
This United Airlines deal was found by Cheapflights users on 7/28. 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.
mar. 10/71:30 pmSTL - MAD
1 stop10h 10mUnited Airlines
mar. 10/2112:45 pmMAD - STL
2 stops29h 04mUnited Airlines
Deal found 7/28$560
This Booking.com deal was found by Cheapflights users on 7/27. 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.
sáb. 10/189:20 amSTL - BCN
2 stops39h 30mMultiple Airlines
mié. 10/296:50 amBCN - STL
1 stop14h 05mMultiple Airlines
Deal found 7/27$578
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/53:30 pmSTL - BIO
1 stop14h 55mLufthansa
mié. 10/156:45 amBIO - STL
1 stop13h 45mLufthansa
Deal found 7/29$592
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/51:30 pmSTL - BIO
2 stops21h 20mAir Canada
mié. 10/156:45 amBIO - STL
2 stops19h 53mAir Canada
Deal found 7/29$598
This Booking.com deal was found by Cheapflights users on 7/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/141:30 pmSTL - BIO
2 stops21h 50mMultiple Airlines
mar. 10/212:10 pmBIO - STL
2 stops32h 34mMultiple Airlines
Deal found 7/28$601
This Iberia deal was found by Cheapflights users on 7/27. 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.
dom. 10/59:56 amSTL - BIO
2 stops19h 49mIberia
mié. 10/151:30 pmBIO - STL
2 stops17h 24mIberia
Deal found 7/27$604

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 julio 29, 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

mar. 10/14

4:34 pm-10:30 am

1 stop10h 56m

Barcelona-El Prat

vie. 10/24

2:00 pm-8:20 pm

1 stop13h 20m

$510

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

lun. 9/22

7:04 pm-7:50 am

2 stops29h 46m

Barcelona-El Prat

mié. 10/8

12:10 pm-7:57 pm

1 stop14h 47m

$525

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

lun. 9/22

1:30 pm-7:50 am

1 stop11h 20m

Barcelona-El Prat

mié. 10/8

12:10 pm-7:57 pm

1 stop14h 47m

$537

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

lun. 9/22

7:04 pm-6:10 pm

2 stops16h 06m

Barcelona-El Prat

mié. 10/8

6:50 am-1:30 pm

1 stop13h 40m

$552

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

dom. 9/21

9:15 am-8:20 am

1 stop16h 05m

Madrid Barajas

mar. 10/7

12:30 pm-3:18 pm

1 stop33h 48m

$555

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

mar. 10/7

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

mié. 10/15

12:45 pm-2:27 pm

2 stops32h 42m

$560

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

sáb. 10/18

9:20 am-7:50 am

2 stops39h 30m

Barcelona-El Prat

mié. 10/29

6:50 am-2:55 pm

1 stop14h 05m

$578

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

lun. 10/6

10:10 am-9:05 am

1 stop15h 55m

Madrid Barajas

mar. 10/21

12:40 pm-11:12 pm

1 stop17h 32m

$587

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

dom. 10/5

3:30 pm-1:25 pm

1 stop14h 55m

Bilbao

mié. 10/15

6:45 am-1:30 pm

1 stop13h 45m

$592

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

dom. 10/5

1:30 pm-5:50 pm

2 stops21h 20m

Bilbao

mié. 10/15

6:45 am-7:38 pm

2 stops19h 53m

$598

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 52 results
1
2
3
...
6

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 $1,052). 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 julio 29, 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.

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 julio 29, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Air France 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.
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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
1,383 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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
1,465 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

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 $438 on Air Canada. Other airlines that offer cheap prices include KLM from $443 and United Airlines from $445 one-way.

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

    Most travelers choose Lambert-St Louis - Madrid Barajas, Lambert-St Louis - Sevilla or Lambert-St Louis - Barcelona-El Prat 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 $1,052). 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.

Alternative routes for St. Louis to Spain

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Frankfurt flights
St. Louis to Heathrow flights
Kansas City to Dublin flights
St. Louis to Keflavik Intl flights
St. Louis to Vicenza flights
Kansas City to Heathrow flights
Kansas City to Frankfurt flights
Kansas City to Athens flights
St. Louis to Dublin flights
St. Louis to Gatwick flights
Kansas City to Leonardo da Vinci/Fiumicino flights
Kansas City to Charles de Gaulle flights
Kansas City to Gatwick flights
Kansas City to Dubrovnik flights
St. Louis to Leonardo da Vinci/Fiumicino flights
St. Louis to Malpensa flights
Kansas City to Krakow flights
St. Louis to Linate flights
Kansas City to Amsterdam flights
St. Louis to Athens flights
St. Louis to Charles de Gaulle flights
St. Louis to Edinburgh flights
Kansas City to Lisbon flights
St. Louis to Zurich flights
St. Louis to Lisbon flights
St. Louis to London City flights
Kansas City to Keflavik Intl flights
Kansas City to Madrid flights
Kansas City to Frederic Chopin flights
St. Louis to Madrid flights
St. Louis to Istanbul flights
St. Louis to Munich flights
Kansas City to Malpensa flights
St. Louis to Seville flights
Kansas City to London City flights
St. Louis to Barcelona-El Prat flights
Kansas City to Orly flights
St. Louis to Orly flights
Kansas City to Naples flights
Kansas City to Vicenza flights
St. Louis to Sarajevo flights
Kansas City to Munich flights
Kansas City to Split flights
Kansas City to Barcelona-El Prat flights
Kansas City to Linate flights
Kansas City to Edinburgh flights
St. Louis to Amsterdam flights
St. Louis to Sabiha Gokcen flights
Kansas City to Zurich flights
Springfield to Heathrow flights

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 julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$468Average$751FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$527Average$1,105FlexibilityNo cancel feeOn-time76%
DeltaCheapest$533Average$942FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$545Average$860FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$567Average$1,036FlexibilityNo cancel feeOn-time69%
IberiaCheapest$571Average$974FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$614Average$1,068FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$629Average$1,094FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.