What airlines fly to Spain?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to Spain from St. Louis according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Spain. Keep in mind that there are 7 different airlines that fly to Spain on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Spain?

Aer Lingus, British Airways, and Air Canada are the most popular carriers operating from Lambert-St Louis to Spain

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

Prices for flights from Lambert-St Louis Airport to Spain were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Spain?

As of October 2026, there are 7 operators available to choose from for flights from Lambert-St Louis Airport to Spain.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Spain.

What documentation or ID do you need to fly to Spain?

The travel and health documents required for your trip to Spain can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Spain. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$328 Cheap Flights from St. Louis to Spain in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Spain

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:05 pm - 3:30 pmSTL Lambert-St Louis-AGP Malaga

16h 25m2 stops Toronto Pearson Intl Zurich

11:55 am - 9:12 pmAGP Malaga-STL Lambert-St Louis

16h 17m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$702Multiple Airlines

Sun, Feb 7 - Fri, Feb 19

3:40 pm - 4:15 pmSTL Lambert-St Louis-AGP Malaga

17h 35m1 stop Frankfurt am Main

11:55 am - 9:12 pmAGP Malaga-STL Lambert-St Louis

16h 17m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$706Multiple Airlines

Sun, Feb 7 - Fri, Feb 19

7:04 pm - 5:50 pmSTL Lambert-St Louis-MAD Madrid Barajas

16h 46m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

5:55 am - 1:25 pmMAD Madrid Barajas-STL Lambert-St Louis

14h 30m1 stop Frankfurt am Main

$714Lufthansa

Mon, Mar 22 - Wed, Mar 31

8:33 am - 11:10 pmSTL Lambert-St Louis-BIO Bilbao

31h 37m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:45 am - 3:26 pmBIO Bilbao-STL Lambert-St Louis

39h 41m2 stops Frankfurt am Main Toronto Pearson Intl

$715United Airlines

Mon, Mar 1 - Thu, Mar 4

8:33 am - 11:10 pmSTL Lambert-St Louis-BIO Bilbao

31h 37m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:45 am - 3:26 pmBIO Bilbao-STL Lambert-St Louis

39h 41m2 stops Frankfurt am Main Toronto Pearson Intl

$716United Airlines

Mon, Mar 1 - Thu, Mar 4

2:19 pm - 8:50 amSTL Lambert-St Louis-MAD Madrid Barajas

12h 31m1 stop Chicago O'Hare Intl

1:35 pm - 8:22 pmMAD Madrid Barajas-STL Lambert-St Louis

13h 47m1 stop Chicago O'Hare Intl

$718Iberia

Mon, Mar 22 - Wed, Mar 31

5:49 pm - 6:35 pmSTL Lambert-St Louis-MAD Madrid Barajas

17h 46m2 stops Chicago O'Hare Intl London Heathrow

12:40 pm - 9:57 pmMAD Madrid Barajas-STL Lambert-St Louis

16h 17m1 stop Charlotte Douglas

$738British Airways

Wed, Jan 20 - Wed, Jan 27

3:40 pm - 12:35 pmSTL Lambert-St Louis-MAD Madrid Barajas

13h 55m1 stop Frankfurt am Main

6:05 am - 1:45 pmMAD Madrid Barajas-STL Lambert-St Louis

14h 40m1 stop Frankfurt am Main

$740Lufthansa

Wed, Nov 11 - Wed, Nov 18

12:08 pm - 9:25 amSTL Lambert-St Louis-MAD Madrid Barajas

14h 17m1 stop Dallas/Fort Worth

12:40 pm - 11:10 pmMAD Madrid Barajas-STL Lambert-St Louis

17h 30m1 stop Dallas/Fort Worth

$740Iberia

Sun, Feb 21 - Thu, Feb 25

5:00 am - 7:05 amSTL Lambert-St Louis-BCN Barcelona-El Prat

19h 05m1 stop Miami

11:00 am - 9:50 pmBCN Barcelona-El Prat-STL Lambert-St Louis

17h 50m1 stop Miami

$741British Airways

Mon, Nov 23 - Wed, Dec 9

Cheap last minute flights

Enter your travel dates to find the best prices.

2:25 pm - 12:15 pmSTL Lambert-St Louis-MAD Madrid Barajas

14h 50m1 stop Atlanta Hartsfield-Jackson

6:05 am - 11:54 pmMAD Madrid Barajas-STL Lambert-St Louis

23h 49m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$810Delta

Wed, Oct 21 - Fri, Oct 30

2:25 pm - 12:15 pmSTL Lambert-St Louis-MAD Madrid Barajas

14h 50m1 stop Atlanta Hartsfield-Jackson

6:05 am - 11:54 pmMAD Madrid Barajas-STL Lambert-St Louis

23h 49m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$810Delta

Wed, Oct 21 - Fri, Oct 30

12:00 pm - 12:15 pmSTL Lambert-St Louis-MAD Madrid Barajas

17h 15m1 stop Atlanta Hartsfield-Jackson

10:50 am - 11:54 pmMAD Madrid Barajas-STL Lambert-St Louis

19h 04m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$810Delta

Wed, Oct 21 - Fri, Oct 30

12:00 pm - 9:30 amSTL Lambert-St Louis-MAD Madrid Barajas

14h 30m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

1:05 pm - 11:54 pmMAD Madrid Barajas-STL Lambert-St Louis

16h 49m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$818KLM

Wed, Oct 21 - Fri, Oct 30

12:00 pm - 9:30 amSTL Lambert-St Louis-MAD Madrid Barajas

14h 30m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

1:05 pm - 11:54 pmMAD Madrid Barajas-STL Lambert-St Louis

16h 49m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$818KLM

Wed, Oct 21 - Fri, Oct 30

4:40 pm - 5:00 pmSTL Lambert-St Louis-BIO Bilbao

18h 20m1 stop Frankfurt am Main

6:45 am - 9:40 pmBIO Bilbao-STL Lambert-St Louis

21h 55m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,037Lufthansa

Sun, Oct 25 - Mon, Nov 16

10:59 am - 11:40 amSTL Lambert-St Louis-BIO Bilbao

18h 41m3 stops Chicago O'Hare Intl Toronto Pearson Intl Frankfurt am Main

6:45 am - 6:09 pmBIO Bilbao-STL Lambert-St Louis

18h 24m3 stops Frankfurt am Main Toronto Pearson Intl Chicago O'Hare Intl

$1,330Air Canada

Sun, Oct 25 - Mon, Nov 16

1:25 pm - 3:30 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

19h 05m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:40 am - 11:24 pmBCN Barcelona-El Prat-STL Lambert-St Louis

21h 44m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$1,346Lufthansa

Sat, Oct 24 - Mon, Oct 26

11:31 am - 10:35 amSTL Lambert-St Louis-BCN Barcelona-El Prat

16h 04m1 stop Chicago O'Hare Intl

11:30 am - 12:19 amBCN Barcelona-El Prat-STL Lambert-St Louis

18h 49m1 stop Chicago O'Hare Intl

$1,532British Airways

Sat, Oct 24 - Mon, Oct 26

3:15 pm - 5:00 pmSTL Lambert-St Louis-BIO Bilbao

19h 45m3 stops Chicago O'Hare Intl Toronto Pearson Intl Frankfurt am Main

6:45 am - 6:09 pmBIO Bilbao-STL Lambert-St Louis

18h 24m3 stops Frankfurt am Main Toronto Pearson Intl Chicago O'Hare Intl

$1,594Air Canada

Sun, Oct 25 - Mon, Nov 16

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United Airlines flights from St. Louis to Spain

Our best United Airlines deals on St. Louis to Spain flight tickets

United Airlines

Mar 1

STL8:33 amLambert-St Louis

31h 37m

2 stops

BIO11:10 pmBilbao

Mar 4

BIO6:45 amBilbao

39h 41m

2 stops

STL3:26 pmLambert-St Louis

$715

United Airlines

Mar 1

STL8:33 amLambert-St Louis

31h 37m

2 stops

BIO11:10 pmBilbao

Mar 4

BIO6:45 amBilbao

39h 41m

2 stops

STL3:26 pmLambert-St Louis

$716

United Airlines

Mar 1

STL8:25 amLambert-St Louis

16h 20m

1 stop

MAD7:45 amMadrid Barajas

Mar 4

MAD1:25 pmMadrid Barajas

31h 52m

2 stops

STL2:17 pmLambert-St Louis

$720

Air Canada flights from St. Louis to Spain

Our best Air Canada deals on St. Louis to Spain flight tickets

Air Canada

Mar 14

STL4:05 pmLambert-St Louis

32h 55m

2 stops

MAD7:00 amMadrid Barajas

Mar 23

MAD12:50 pmMadrid Barajas

36h 39m

2 stops

STL7:29 pmLambert-St Louis

$727

Air Canada

Nov 23

STL10:53 amLambert-St Louis

15h 07m

2 stops

BCN9:00 amBarcelona-El Prat

Dec 8

BCN10:30 amBarcelona-El Prat

16h 00m

1 stop

STL7:30 pmLambert-St Louis

$739

Air Canada

Feb 2

STL10:48 amLambert-St Louis

15h 47m

2 stops

BCN9:35 amBarcelona-El Prat

Feb 12

BCN1:35 pmBarcelona-El Prat

32h 29m

2 stops

STL3:04 pmLambert-St Louis

$743

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMálaga

STL Lambert-St Louis - AGP Malaga

STLAGP

Lambert-St Louis

Sun 2/7

4:05 pm-3:30 pm

2 stops16h 25m

Malaga

Fri 2/19

11:55 am-9:12 pm

2 stops16h 17m

$702

St. LouisMálaga

STL Lambert-St Louis - AGP Malaga

STLAGP

Lambert-St Louis

Sun 2/7

3:40 pm-4:15 pm

1 stop17h 35m

Malaga

Fri 2/19

11:55 am-9:12 pm

2 stops16h 17m

$706

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Mon 3/22

7:04 pm-5:50 pm

2 stops16h 46m

Madrid Barajas

Wed 3/31

5:55 am-1:25 pm

1 stop14h 30m

$714

St. LouisBilbao

STL Lambert-St Louis - BIO Bilbao

STLBIO

Lambert-St Louis

Mon 3/1

8:33 am-11:10 pm

2 stops31h 37m

Bilbao

Thu 3/4

6:45 am-3:26 pm

2 stops39h 41m

$715

St. LouisBilbao

STL Lambert-St Louis - BIO Bilbao

STLBIO

Lambert-St Louis

Mon 3/1

8:33 am-11:10 pm

2 stops31h 37m

Bilbao

Thu 3/4

6:45 am-3:26 pm

2 stops39h 41m

$716

Quickest round-trip

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Mon 3/22

2:19 pm-8:50 am

1 stop12h 31m

Madrid Barajas

Wed 3/31

1:35 pm-8:22 pm

1 stop13h 47m

$718

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Wed 1/20

5:49 pm-6:35 pm

2 stops17h 46m

Madrid Barajas

Wed 1/27

12:40 pm-9:57 pm

1 stop16h 17m

$738

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Wed 11/11

3:40 pm-12:35 pm

1 stop13h 55m

Madrid Barajas

Wed 11/18

6:05 am-1:45 pm

1 stop14h 40m

$740

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Sun 2/21

12:08 pm-9:25 am

1 stop14h 17m

Madrid Barajas

Thu 2/25

12:40 pm-11:10 pm

1 stop17h 30m

$740

St. LouisBarcelona

STL Lambert-St Louis - BCN Barcelona-El Prat

STLBCN

Lambert-St Louis

Mon 11/23

5:00 am-7:05 am

1 stop19h 05m

Barcelona-El Prat

Wed 12/9

11:00 am-9:50 pm

1 stop17h 50m

$741

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest month to fly to Spain?

If you don’t want to visit Spain in April, then you should wait until November to fly from St. Louis, when ticket prices are also cheap, with an average price of $719.

How far in advance should I book a flight from St. Louis to Spain?

You are more likely to see cheaper flights to Spain from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Spain for around $956 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Spain from St. Louis for as low as $794 on momondo.

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

You could potentially save up to 27% on your flight if you consider stops on a St. Louis to Spain flight.

Cheap St. Louis to Spain flight deals and tips

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

Best Price Found	$328
Fastest flight time	11h 45m
Direct flights	None

The best one-way flight to Spain from St. Louis in the past 72 hours is $328. The best round-trip flight deal from St. Louis to Spain found on momondo in the last 72 hours is $702.

The fastest flight from St. Louis to Spain takes 11h 45m

There are no direct flights from St. Louis to Spain. There are no popular flight routes from St. Louis to Spain.

Search flight deals

Frequently asked questions about flying from St. Louis to Spain

When did momondo last update prices for flights from Lambert-St Louis Airport to Spain?
Prices for flights from Lambert-St Louis Airport to Spain were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Spain?
As of October 2026, there are 7 operators available to choose from for flights from Lambert-St Louis Airport to Spain.
How old do you have to be to fly from Lambert-St Louis Airport to Spain?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Spain.
What documentation or ID do you need to fly to Spain?
The travel and health documents required for your trip to Spain can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Spain. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from St. Louis to Spain

Compare and see reviews for airlines that fly from St. Louis to Spain with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $480	Free Cancellation	Rating 6.8 8,282 reviews	Search Lufthansa flights
Delta	PriceFrom $489	Free Cancellation	Rating 7.8 8,649 reviews	Search Delta flights
British Airways	PriceFrom $516	Free Cancellation	Rating 6.7 8,266 reviews	Search British Airways flights
Iberia	PriceFrom $523	Free Cancellation	Rating 7.0 3,242 reviews	Search Iberia flights
United Airlines	PriceFrom $560	Free Cancellation	Rating 7.3 10,389 reviews	Search United Airlines flights
American Airlines	PriceFrom $574	Free Cancellation	Rating 7.0 12,183 reviews	Search American Airlines flights
Air Canada	PriceFrom $648	Free Cancellation	Rating 7.1 11,783 reviews	Search Air Canada flights

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Spain from St. Louis with this policy.

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

Once you have performed a search for St. Louis to Spain flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Spain from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.