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Cheap flights from Spain to St. Louis from $531

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Spain to St. Louis departing on 6/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Spain to St. Louis

Recent round-trip flight deals from Spain to St. Louis

Enter your travel dates to find the best prices.
Delta Logo
6:45 am - 9:09 pm
BIO
-
STL
21h 24m
2 stops
Delta Logo
1:59 pm - 5:30 pm
STL
-
BIO
20h 31m
2 stops
$892Delta
Fri, May 15 - Thu, May 28
Finnair Logo
1:35 pm - 10:17 pm
MAD
-
STL
15h 42m
1 stop
Finnair Logo
5:21 pm - 1:30 pm
STL
-
MAD
13h 09m
1 stop
$897Finnair
Thu, Apr 16 - Mon, Apr 20
Delta Logo
6:45 am - 5:16 pm
BIO
-
STL
17h 31m
2 stops
Delta Logo
11:25 am - 11:15 am
STL
-
BIO
16h 50m
2 stops
$898Delta
Fri, May 15 - Wed, May 27
Multiple Airlines Logo
6:20 am - 4:50 pm
BCN
-
STL
17h 30m
2 stops
Multiple Airlines Logo
1:02 pm - 11:15 am
STL
-
BCN
15h 13m
2 stops
$902Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Multiple Airlines Logo
6:20 am - 4:50 pm
BCN
-
STL
17h 30m
2 stops
Multiple Airlines Logo
11:42 am - 9:00 am
STL
-
BCN
14h 18m
2 stops
$903Multiple Airlines
Fri, Apr 24 - Mon, Apr 27
KLM Logo
6:20 am - 4:50 pm
BCN
-
STL
17h 30m
2 stops
KLM Logo
11:42 am - 12:50 pm
STL
-
BCN
18h 08m
1 stop
$906KLM
Fri, Apr 24 - Mon, Apr 27
KLM Logo
7:05 am - 4:42 pm
MAD
-
STL
16h 37m
2 stops
KLM Logo
1:02 pm - 12:15 pm
STL
-
MAD
16h 13m
1 stop
$907KLM
Thu, Apr 16 - Mon, Apr 20
United Airlines Logo
6:45 am - 1:25 pm
BIO
-
STL
13h 40m
1 stop
United Airlines Logo
8:35 am - 11:25 pm
STL
-
BIO
31h 50m
2 stops
$908United Airlines
Fri, May 15 - Thu, May 28
Virgin Atlantic Logo
11:00 am - 9:19 pm
BCN
-
STL
17h 19m
1 stop
Virgin Atlantic Logo
1:02 pm - 12:50 pm
STL
-
BCN
16h 48m
1 stop
$908Virgin Atlantic
Thu, Apr 16 - Mon, Apr 20
United Airlines Logo
6:45 am - 1:25 pm
BIO
-
STL
13h 40m
1 stop
United Airlines Logo
12:55 pm - 1:20 pm
STL
-
BIO
17h 25m
2 stops
$909United Airlines
Fri, May 15 - Mon, May 25

Delta flights from Spain to St. Louis

Our best Delta deals on Spain to St. Louis flight tickets
Delta
May 15
BIO6:45 amBilbao
17h 31m
2 stops
STL5:16 pmLambert-St Louis
May 27
STL11:25 amLambert-St Louis
16h 50m
2 stops
BIO11:15 amBilbao
$898
Delta
Apr 11
AGP6:00 amMalaga
21h 42m
2 stops
STL8:42 pmLambert-St Louis
Apr 15
STL6:19 amLambert-St Louis
22h 26m
2 stops
AGP11:45 amMalaga
$902
Delta
Apr 21
MAD10:25 amMadrid Barajas
20h 11m
2 stops
STL11:36 pmLambert-St Louis
Apr 26
STL5:59 pmLambert-St Louis
15h 46m
2 stops
MAD4:45 pmMadrid Barajas
$903

KLM flights from Spain to St. Louis

Our best KLM deals on Spain to St. Louis flight tickets
KLM
Apr 24
BCN6:20 amBarcelona-El Prat
17h 30m
2 stops
STL4:50 pmLambert-St Louis
Apr 27
STL11:42 amLambert-St Louis
18h 08m
1 stop
BCN12:50 pmBarcelona-El Prat
$906
KLM
Apr 16
MAD7:05 amMadrid Barajas
16h 37m
2 stops
STL4:42 pmLambert-St Louis
Apr 20
STL1:02 pmLambert-St Louis
16h 13m
1 stop
MAD12:15 pmMadrid Barajas
$907
KLM
May 11
MAD6:00 amMadrid Barajas
15h 31m
2 stops
STL2:31 pmLambert-St Louis
May 18
STL6:15 pmLambert-St Louis
15h 10m
2 stops
MAD4:25 pmMadrid Barajas
$910

momondo Fare Finder

 
Customize your flight search to find flights from Spain to St. Louis 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, momondo users made 832,500 searches. Data last updated April 1, 2026.
Use the filters below to find and compare flights from Spain to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BilbaoSt. Louis

BIO - STL

BIOSTL

Bilbao

Fri 5/15

6:45 am-9:09 pm

2 stops21h 24m

Lambert-St Louis

Thu 5/28

1:59 pm-5:30 pm

2 stops20h 31m

$892
Quickest round-trip

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 4/16

1:35 pm-10:17 pm

1 stop15h 42m

Lambert-St Louis

Mon 4/20

5:21 pm-1:30 pm

1 stop13h 09m

$897

BilbaoSt. Louis

BIO - STL

BIOSTL

Bilbao

Fri 5/15

6:45 am-5:16 pm

2 stops17h 31m

Lambert-St Louis

Wed 5/27

11:25 am-11:15 am

2 stops16h 50m

$898

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 4/16

6:20 am-4:50 pm

2 stops17h 30m

Lambert-St Louis

Mon 4/20

1:02 pm-11:15 am

2 stops15h 13m

$902

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Fri 4/24

6:20 am-4:50 pm

2 stops17h 30m

Lambert-St Louis

Mon 4/27

11:42 am-9:00 am

2 stops14h 18m

$903

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Fri 4/24

6:20 am-4:50 pm

2 stops17h 30m

Lambert-St Louis

Mon 4/27

11:42 am-12:50 pm

1 stop18h 08m

$906

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 4/16

7:05 am-4:42 pm

2 stops16h 37m

Lambert-St Louis

Mon 4/20

1:02 pm-12:15 pm

1 stop16h 13m

$907

BilbaoSt. Louis

BIO - STL

BIOSTL

Bilbao

Fri 5/15

6:45 am-1:25 pm

1 stop13h 40m

Lambert-St Louis

Thu 5/28

8:35 am-11:25 pm

2 stops31h 50m

$908

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 4/16

11:00 am-9:19 pm

1 stop17h 19m

Lambert-St Louis

Mon 4/20

1:02 pm-12:50 pm

1 stop16h 48m

$908

BilbaoSt. Louis

BIO - STL

BIOSTL

Bilbao

Fri 5/15

6:45 am-1:25 pm

1 stop13h 40m

Lambert-St Louis

Mon 5/25

12:55 pm-1:20 pm

2 stops17h 25m

$909

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Spain to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Spain to St. Louis flights?

You could potentially save up to 15% on your flight if you consider stops on a Spain to St. Louis flight.

Cheap Spain to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Spain to St. Louis

Fastest flight time

13h 40m

Direct flights

None
The fastest flight from Spain to St. Louis takes 13h 40m
There are no direct flights from Spain to St. Louis. There are no popular flight routes from Spain to St. Louis.
Search flight deals

  • When did momondo last update prices for flights from Spain to Lambert-St Louis Airport?

    Prices for flights from Spain to Lambert-St Louis Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Spain to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Spain to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Clayton
Festus
Eureka
Edwardsville
Litchfield
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Spain to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Spain to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Spain to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Spain to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Spain to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Spain to St. Louis.

I’m not ready to book a flight from Spain to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Spain to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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