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Cheap flights from Spain to St. Louis from $344

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 11/20. 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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Find the cheapest flights from Spain to St. Louis

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

Iberia Logo
10:40 am - 10:24 pmBCN-STL
18h 44m1 stop
Iberia Logo
9:35 am - 8:50 amSTL-BCN
16h 15m1 stop
$680Iberia
Find Deal
Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
6:10 pm - 1:00 pmBCN-STL
25h 50m1 stop
American Airlines Logo
11:54 am - 8:50 amSTL-BCN
13h 56m1 stop
$681American Airlines
Find Deal
Sat, Feb 7 - Sun, Feb 22
Multiple Airlines Logo
10:00 am - 9:48 pmMAD-STL
18h 48m1 stop
Multiple Airlines Logo
11:18 am - 7:55 amSTL-MAD
13h 37m1 stop
$685Multiple Airlines
Find Deal
Fri, Feb 6 - Sun, Feb 22
Multiple Airlines Logo
1:00 pm - 7:07 pmMAD-STL
13h 07m1 stop
Multiple Airlines Logo
7:30 am - 5:45 amSTL-MAD
15h 15m1 stop
$689Multiple Airlines
Find Deal
Fri, Feb 6 - Sun, Feb 22
British Airways Logo
12:00 pm - 10:27 pmMAD-STL
17h 27m2 stops
British Airways Logo
7:01 pm - 5:45 amSTL-MAD
27h 44m1 stop
$712British Airways
Find Deal
Fri, Feb 6 - Sun, Feb 22
British Airways Logo
6:55 pm - 7:06 pmAGP-STL
31h 11m2 stops
British Airways Logo
4:49 pm - 5:50 pmSTL-AGP
18h 01m2 stops
$745British Airways
Find Deal
Wed, Dec 10 - Sun, Dec 14
United Airlines Logo
6:00 am - 9:40 pmMAD-STL
22h 40m2 stops
United Airlines Logo
11:25 am - 9:15 amSTL-MAD
14h 50m2 stops
$794United Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
United Airlines Logo
11:00 am - 9:13 pmBCN-STL
17h 13m2 stops
United Airlines Logo
7:41 am - 9:35 amSTL-BCN
18h 54m3 stops
$798United Airlines
Find Deal
Sat, Feb 7 - Mon, Feb 23
KLM Logo
6:00 am - 4:50 pmMAD-STL
17h 50m2 stops
KLM Logo
7:05 pm - 9:00 amSTL-MAD
30h 55m1 stop
$803KLM
Find Deal
Fri, Feb 6 - Sun, Feb 22
KLM Logo
11:15 am - 11:40 pmMAD-STL
19h 25m1 stop
KLM Logo
5:00 pm - 9:00 amSTL-MAD
33h 00m1 stop
$1,023KLM
Find Deal
Sat, Jan 3 - Tue, Jan 13

United Airlines flights from Spain to St. Louis

Our best United Airlines deals on Spain to St. Louis flight tickets
United Airlines
Dec 8
MAD6:00 amMadrid Barajas
22h 40m
2 stops
STL9:40 pmLambert-St Louis
Dec 15
STL11:25 amLambert-St Louis
14h 50m
2 stops
MAD9:15 amMadrid Barajas
$794
Find similar
United Airlines
Feb 7
BCN11:00 amBarcelona-El Prat
17h 13m
2 stops
STL9:13 pmLambert-St Louis
Feb 23
STL7:41 amLambert-St Louis
18h 54m
3 stops
BCN9:35 amBarcelona-El Prat
$798
Find similar
United Airlines
Dec 11
MAD1:35 pmMadrid Barajas
33h 05m
2 stops
STL3:40 pmLambert-St Louis
Dec 15
STL10:00 amLambert-St Louis
16h 15m
2 stops
MAD9:15 amMadrid Barajas
$808
Find similar

Lufthansa flights from Spain to St. Louis

Our best Lufthansa deals on Spain to St. Louis flight tickets
Lufthansa
Dec 9
AGP5:05 pmMalaga
27h 50m
1 stop
STL1:55 pmLambert-St Louis
Dec 15
STL1:00 pmLambert-St Louis
20h 10m
2 stops
AGP4:10 pmMalaga
$888
Find similar
Lufthansa
Dec 10
AGP11:50 amMalaga
18h 52m
2 stops
STL11:42 pmLambert-St Louis
Dec 14
STL3:50 pmLambert-St Louis
17h 10m
1 stop
AGP4:00 pmMalaga
$995
Find similar
Lufthansa
Dec 9
AGP5:05 pmMalaga
27h 50m
1 stop
STL1:55 pmLambert-St Louis
Dec 14
STL3:50 pmLambert-St Louis
17h 10m
1 stop
AGP4:00 pmMalaga
$996
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 September 17, 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

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 2/19

10:40 am-10:24 pm

1 stop18h 44m

Lambert-St Louis

Mon 2/23

9:35 am-8:50 am

1 stop16h 15m

$680

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Sat 2/7

6:10 pm-1:00 pm

1 stop25h 50m

Lambert-St Louis

Sun 2/22

11:54 am-8:50 am

1 stop13h 56m

$681

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 2/6

10:00 am-9:48 pm

1 stop18h 48m

Lambert-St Louis

Sun 2/22

11:18 am-7:55 am

1 stop13h 37m

$685

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 2/6

1:00 pm-7:07 pm

1 stop13h 07m

Lambert-St Louis

Sun 2/22

7:30 am-5:45 am

1 stop15h 15m

$689

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 2/6

12:00 pm-10:27 pm

2 stops17h 27m

Lambert-St Louis

Sun 2/22

7:01 pm-5:45 am

1 stop27h 44m

$712

MálagaSt. Louis

AGP - STL

AGPSTL

Malaga

Wed 12/10

6:55 pm-7:06 pm

2 stops31h 11m

Lambert-St Louis

Sun 12/14

4:49 pm-5:50 pm

2 stops18h 01m

$745

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Mon 12/8

6:00 am-9:40 pm

2 stops22h 40m

Lambert-St Louis

Mon 12/15

11:25 am-9:15 am

2 stops14h 50m

$794

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Sat 2/7

11:00 am-9:13 pm

2 stops17h 13m

Lambert-St Louis

Mon 2/23

7:41 am-9:35 am

3 stops18h 54m

$798

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 2/6

6:00 am-4:50 pm

2 stops17h 50m

Lambert-St Louis

Sun 2/22

7:05 pm-9:00 am

1 stop30h 55m

$803

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Sat 1/3

11:15 am-11:40 pm

1 stop19h 25m

Lambert-St Louis

Tue 1/13

5:00 pm-9:00 am

1 stop33h 00m

$1,023

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

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 October is another great option to travel to St. Louis, with average flight prices from Spain averaging around $693.

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

You could potentially save up to 25% 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

Direct flights

None
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
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
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.

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