Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Spain to St. Louis from $400

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 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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.
British Airways Logo
1:15 pm - 10:44 pm
MAD
-
STL
16h 29m1 stop
British Airways Logo
6:44 pm - 4:55 pm
STL
-
MAD
15h 11m2 stops
$766British Airways
Thu, Jan 22 - Mon, Jan 26
British Airways Logo
10:40 am - 7:29 pm
BCN
-
STL
15h 49m1 stop
British Airways Logo
6:44 pm - 5:55 pm
STL
-
BCN
16h 11m2 stops
$767British Airways
Thu, Jan 15 - Mon, Jan 19
British Airways Logo
10:40 am - 10:59 pm
BCN
-
STL
19h 19m1 stop
British Airways Logo
6:44 pm - 4:30 pm
STL
-
BCN
14h 46m2 stops
$768British Airways
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
6:00 am - 4:37 pm
BCN
-
STL
17h 37m2 stops
Multiple Airlines Logo
11:23 am - 11:10 am
STL
-
BCN
16h 47m2 stops
$774Multiple Airlines
Thu, Jan 15 - Mon, Jan 19
Delta Logo
11:00 am - 8:43 pm
MAD
-
STL
16h 43m2 stops
Delta Logo
1:00 pm - 5:40 pm
STL
-
MAD
21h 40m2 stops
$775Delta
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
10:15 am - 8:37 pm
BCN
-
STL
17h 22m2 stops
Multiple Airlines Logo
11:23 am - 11:10 am
STL
-
BCN
16h 47m2 stops
$775Multiple Airlines
Mon, Jan 12 - Mon, Jan 19
KLM Logo
1:00 pm - 11:39 pm
BCN
-
STL
17h 39m2 stops
KLM Logo
6:57 pm - 8:40 am
STL
-
BCN
30h 43m1 stop
$777KLM
Thu, Jan 15 - Mon, Jan 19
Delta Logo
11:15 am - 9:06 am
MAD
-
STL
28h 51m1 stop
Delta Logo
6:35 am - 11:30 am
STL
-
MAD
21h 55m2 stops
$780Delta
Thu, Feb 19 - Thu, Mar 5
Iberia Logo
10:40 am - 10:59 pm
BCN
-
STL
19h 19m1 stop
Iberia Logo
9:25 am - 8:50 am
STL
-
BCN
16h 25m1 stop
$780Iberia
Wed, Feb 4 - Wed, Feb 11
Iberia Logo
5:35 pm - 11:03 am
AGP
-
STL
24h 28m2 stops
Iberia Logo
11:05 am - 4:50 pm
STL
-
AGP
22h 45m2 stops
$983Iberia
Fri, Jan 23 - Mon, Jan 26

KLM flights from Spain to St. Louis

Our best KLM deals on Spain to St. Louis flight tickets
KLM
Jan 15
BCN1:00 pmBarcelona-El Prat
17h 39m
2 stops
STL11:39 pmLambert-St Louis
Jan 19
STL6:57 pmLambert-St Louis
30h 43m
1 stop
BCN8:40 amBarcelona-El Prat
$777
Find similar
KLM
Jan 22
MAD11:00 amMadrid Barajas
16h 43m
2 stops
STL8:43 pmLambert-St Louis
Jan 30
STL3:31 pmLambert-St Louis
15h 09m
2 stops
MAD1:40 pmMadrid Barajas
$808
Find similar

British Airways flights from Spain to St. Louis

Our best British Airways deals on Spain to St. Louis flight tickets
British Airways
Jan 22
MAD1:15 pmMadrid Barajas
16h 29m
1 stop
STL10:44 pmLambert-St Louis
Jan 26
STL6:44 pmLambert-St Louis
15h 11m
2 stops
MAD4:55 pmMadrid Barajas
$766
Find similar
British Airways
Jan 15
BCN10:40 amBarcelona-El Prat
15h 49m
1 stop
STL7:29 pmLambert-St Louis
Jan 19
STL6:44 pmLambert-St Louis
16h 11m
2 stops
BCN5:55 pmBarcelona-El Prat
$767
Find similar
British Airways
Feb 4
BCN10:40 amBarcelona-El Prat
19h 19m
1 stop
STL10:59 pmLambert-St Louis
Feb 11
STL6:44 pmLambert-St Louis
14h 46m
2 stops
BCN4:30 pmBarcelona-El Prat
$768
Find similar

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 December 22, 2025.
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

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 1/22

1:15 pm-10:44 pm

1 stop16h 29m

Lambert-St Louis

Mon 1/26

6:44 pm-4:55 pm

2 stops15h 11m

$766

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 1/15

10:40 am-7:29 pm

1 stop15h 49m

Lambert-St Louis

Mon 1/19

6:44 pm-5:55 pm

2 stops16h 11m

$767

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 2/4

10:40 am-10:59 pm

1 stop19h 19m

Lambert-St Louis

Wed 2/11

6:44 pm-4:30 pm

2 stops14h 46m

$768

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 1/15

6:00 am-4:37 pm

2 stops17h 37m

Lambert-St Louis

Mon 1/19

11:23 am-11:10 am

2 stops16h 47m

$774

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Wed 1/14

11:00 am-8:43 pm

2 stops16h 43m

Lambert-St Louis

Wed 1/21

1:00 pm-5:40 pm

2 stops21h 40m

$775

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Mon 1/12

10:15 am-8:37 pm

2 stops17h 22m

Lambert-St Louis

Mon 1/19

11:23 am-11:10 am

2 stops16h 47m

$775

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 1/15

1:00 pm-11:39 pm

2 stops17h 39m

Lambert-St Louis

Mon 1/19

6:57 pm-8:40 am

1 stop30h 43m

$777

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 2/19

11:15 am-9:06 am

1 stop28h 51m

Lambert-St Louis

Thu 3/5

6:35 am-11:30 am

2 stops21h 55m

$780

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 2/4

10:40 am-10:59 pm

1 stop19h 19m

Lambert-St Louis

Wed 2/11

9:25 am-8:50 am

1 stop16h 25m

$780

MálagaSt. Louis

AGP - STL

AGPSTL

Malaga

Fri 1/23

5:35 pm-11:03 am

2 stops24h 28m

Lambert-St Louis

Mon 1/26

11:05 am-4:50 pm

2 stops22h 45m

$983

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

What is the cheapest month to fly to St. Louis?

In general, February is the cheapest month to fly from Spain to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $684. The month of March is another great option to travel to St. Louis, with average flight prices from Spain averaging around $720.

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

You could potentially save up to 1% 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

14h 02m

Direct flights

None
The fastest flight from Spain to St. Louis takes 14h 02m
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
Fenton
St. Peters
Wentzville
Collinsville
Alton
Farmington
Clayton
Festus
Glencoe
Eureka
Edwardsville
Litchfield
Shrewsbury

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.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 1/21
Wed 1/28
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States