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 33% 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?

United Airlines, 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 September 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.

$262 Cheap Flights from St. Louis to Spain in 2026

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.

6:30 am - 7:20 amSTL Lambert-St Louis-MAD Madrid Barajas

17h 50m2 stops Minneapolis St Paul New York John F Kennedy Intl

9:20 am - 8:49 pmMAD Madrid Barajas-STL Lambert-St Louis

18h 29m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

$642Virgin Atlantic

Sun, Jan 17 - Wed, Jan 27

9:51 am - 6:10 amSTL Lambert-St Louis-MAD Madrid Barajas

13h 19m1 stop Dallas/Fort Worth

1:00 pm - 8:19 pmMAD Madrid Barajas-STL Lambert-St Louis

14h 19m1 stop Dallas/Fort Worth

$647Iberia

Sun, Jan 17 - Wed, Jan 27

12:10 pm - 6:50 amSTL Lambert-St Louis-MAD Madrid Barajas

11h 40m1 stop Montreal Pierre Elliott Trudeau Intl

1:30 pm - 2:00 pmMAD Madrid Barajas-STL Lambert-St Louis

31h 30m1 stop Toronto Pearson Intl

$689Air Canada

Sun, Oct 4 - Tue, Oct 20

12:10 pm - 8:00 amSTL Lambert-St Louis-BCN Barcelona-El Prat

12h 50m1 stop Montreal Pierre Elliott Trudeau Intl

12:15 pm - 6:41 pmBCN Barcelona-El Prat-STL Lambert-St Louis

13h 26m1 stop Montreal Pierre Elliott Trudeau Intl

$689Air Canada

Mon, Oct 5 - Wed, Oct 21

12:10 pm - 8:00 amSTL Lambert-St Louis-BCN Barcelona-El Prat

12h 50m1 stop Montreal Pierre Elliott Trudeau Intl

1:15 pm - 2:00 pmBCN Barcelona-El Prat-STL Lambert-St Louis

31h 45m1 stop Toronto Pearson Intl

$692Multiple Airlines

Tue, Oct 6 - Fri, Oct 16

12:10 pm - 6:50 amSTL Lambert-St Louis-MAD Madrid Barajas

11h 40m1 stop Montreal Pierre Elliott Trudeau Intl

12:45 pm - 3:43 pmMAD Madrid Barajas-STL Lambert-St Louis

33h 58m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$709United Airlines

Sun, Oct 4 - Wed, Oct 14

1:20 pm - 8:50 amSTL Lambert-St Louis-MAD Madrid Barajas

12h 30m1 stop Chicago O'Hare Intl

12:55 am - 9:31 amMAD Madrid Barajas-STL Lambert-St Louis

15h 36m1 stop Dallas/Fort Worth

$709Iberia

Tue, Nov 10 - Mon, Nov 23

11:29 am - 9:15 amSTL Lambert-St Louis-MAD Madrid Barajas

14h 46m1 stop Newark

1:25 pm - 2:35 pmMAD Madrid Barajas-STL Lambert-St Louis

32h 10m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$711United Airlines

Tue, Nov 10 - Tue, Nov 24

6:40 am - 6:20 amSTL Lambert-St Louis-MAD Madrid Barajas

16h 40m2 stops Detroit Metropolitan Wayne County Boston Logan Intl

2:35 pm - 11:54 pmMAD Madrid Barajas-STL Lambert-St Louis

16h 19m2 stops Boston Logan Intl Atlanta Hartsfield-Jackson

$722Delta

Sun, Oct 4 - Tue, Oct 20

6:00 am - 12:15 pmSTL Lambert-St Louis-MAD Madrid Barajas

23h 15m1 stop Atlanta Hartsfield-Jackson

2:35 pm - 11:54 pmMAD Madrid Barajas-STL Lambert-St Louis

16h 19m2 stops Boston Logan Intl Atlanta Hartsfield-Jackson

$722Delta

Sun, Oct 4 - Tue, Oct 20

Cheap last minute flights

Enter your travel dates to find the best prices.

8:30 am - 6:50 amSTL Lambert-St Louis-MAD Madrid Barajas

15h 20m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:00 pm - 1:25 pmMAD Madrid Barajas-STL Lambert-St Louis

27h 25m1 stop Frankfurt am Main

$1,041Multiple Airlines

Thu, Sep 10 - Mon, Sep 14

8:40 am - 11:20 amSTL Lambert-St Louis-MAD Madrid Barajas

19h 40m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

6:25 pm - 1:25 pmMAD Madrid Barajas-STL Lambert-St Louis

26h 00m2 stops Munich Franz Josef Strauss Frankfurt am Main

$1,048Lufthansa

Thu, Sep 10 - Mon, Sep 14

7:00 am - 6:50 amSTL Lambert-St Louis-MAD Madrid Barajas

16h 50m3 stops Newark Boston Logan Intl Montreal Pierre Elliott Trudeau Intl

12:45 pm - 3:38 pmMAD Madrid Barajas-STL Lambert-St Louis

33h 53m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,061United Airlines

Thu, Sep 10 - Mon, Sep 14

11:01 am - 1:30 pmSTL Lambert-St Louis-MAD Madrid Barajas

19h 29m1 stop Chicago O'Hare Intl

5:30 pm - 8:20 amMAD Madrid Barajas-STL Lambert-St Louis

21h 50m1 stop Boston Logan Intl

$1,078Iberia

Thu, Sep 10 - Mon, Sep 14

3:30 pm - 11:55 amSTL Lambert-St Louis-BCN Barcelona-El Prat

13h 25m1 stop Frankfurt am Main

1:15 pm - 2:00 pmBCN Barcelona-El Prat-STL Lambert-St Louis

31h 45m1 stop Toronto Pearson Intl

$1,099Multiple Airlines

Sun, Sep 13 - Sat, Sep 19

3:30 pm - 3:35 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

17h 05m1 stop Frankfurt am Main

1:15 pm - 8:20 pmBCN Barcelona-El Prat-STL Lambert-St Louis

14h 05m1 stop Toronto Pearson Intl

$1,116Multiple Airlines

Fri, Sep 11 - Sun, Sep 20

6:00 am - 1:15 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

24h 15m1 stop Chicago O'Hare Intl

1:15 pm - 2:00 pmBCN Barcelona-El Prat-STL Lambert-St Louis

31h 45m1 stop Toronto Pearson Intl

$1,151United Airlines

Fri, Sep 11 - Sun, Sep 20

5:30 pm - 1:15 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

12h 45m1 stop Chicago O'Hare Intl

1:15 pm - 8:20 pmBCN Barcelona-El Prat-STL Lambert-St Louis

14h 05m1 stop Toronto Pearson Intl

$1,162United Airlines

Fri, Sep 11 - Sun, Sep 20

6:53 pm - 1:15 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

11h 22m1 stop Chicago O'Hare Intl

10:20 am - 3:38 pmBCN Barcelona-El Prat-STL Lambert-St Louis

36h 18m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,179Lufthansa

Sun, Sep 13 - Sat, Sep 19

2:40 pm - 2:55 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

17h 15m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

10:20 am - 3:38 pmBCN Barcelona-El Prat-STL Lambert-St Louis

36h 18m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,190Lufthansa

Sun, Sep 13 - Sat, Sep 19

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Delta flights from St. Louis to Spain

Our best Delta deals on St. Louis to Spain flight tickets

Delta

Oct 4

STL6:40 amLambert-St Louis

16h 40m

2 stops

MAD6:20 amMadrid Barajas

Oct 20

MAD2:35 pmMadrid Barajas

16h 19m

2 stops

STL11:54 pmLambert-St Louis

$722

Delta

Dec 8

STL2:33 pmLambert-St Louis

11h 07m

1 stop

BCN8:40 amBarcelona-El Prat

Dec 16

BCN10:50 amBarcelona-El Prat

17h 48m

1 stop

STL9:38 pmLambert-St Louis

$726

Delta

Dec 9

STL6:00 amLambert-St Louis

20h 45m

1 stop

MAD9:45 amMadrid Barajas

Dec 15

MAD10:50 amMadrid Barajas

16h 42m

2 stops

STL8:32 pmLambert-St Louis

$732

Air Canada flights from St. Louis to Spain

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

Air Canada

Oct 4

STL12:10 pmLambert-St Louis

11h 40m

1 stop

MAD6:50 amMadrid Barajas

Oct 20

MAD1:30 pmMadrid Barajas

31h 30m

1 stop

STL2:00 pmLambert-St Louis

$689

Air Canada

Nov 10

STL7:30 amLambert-St Louis

17h 30m

2 stops

MAD8:00 amMadrid Barajas

Nov 24

MAD1:25 pmMadrid Barajas

28h 07m

2 stops

STL10:32 amLambert-St Louis

$692

Air Canada

Oct 4

STL8:55 amLambert-St Louis

16h 55m

1 stop

MAD8:50 amMadrid Barajas

Oct 20

MAD1:30 pmMadrid Barajas

31h 30m

1 stop

STL2:00 pmLambert-St Louis

$694

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Sun 1/17

6:30 am-7:20 am

2 stops17h 50m

Madrid Barajas

Wed 1/27

9:20 am-8:49 pm

2 stops18h 29m

$642

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Sun 1/17

9:51 am-6:10 am

1 stop13h 19m

Madrid Barajas

Wed 1/27

1:00 pm-8:19 pm

1 stop14h 19m

$647

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Sun 10/4

12:10 pm-6:50 am

1 stop11h 40m

Madrid Barajas

Tue 10/20

1:30 pm-2:00 pm

1 stop31h 30m

$689

Quickest round-trip

St. LouisBarcelona

STL Lambert-St Louis - BCN Barcelona-El Prat

STLBCN

Lambert-St Louis

Mon 10/5

12:10 pm-8:00 am

1 stop12h 50m

Barcelona-El Prat

Wed 10/21

12:15 pm-6:41 pm

1 stop13h 26m

$689

St. LouisBarcelona

STL Lambert-St Louis - BCN Barcelona-El Prat

STLBCN

Lambert-St Louis

Tue 10/6

12:10 pm-8:00 am

1 stop12h 50m

Barcelona-El Prat

Fri 10/16

1:15 pm-2:00 pm

1 stop31h 45m

$692

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Sun 10/4

12:10 pm-6:50 am

1 stop11h 40m

Madrid Barajas

Wed 10/14

12:45 pm-3:43 pm

2 stops33h 58m

$709

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Tue 11/10

1:20 pm-8:50 am

1 stop12h 30m

Madrid Barajas

Mon 11/23

12:55 am-9:31 am

1 stop15h 36m

$709

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Tue 11/10

11:29 am-9:15 am

1 stop14h 46m

Madrid Barajas

Tue 11/24

1:25 pm-2:35 pm

2 stops32h 10m

$711

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Sun 10/4

6:40 am-6:20 am

2 stops16h 40m

Madrid Barajas

Tue 10/20

2:35 pm-11:54 pm

2 stops16h 19m

$722

St. LouisMadrid

STL Lambert-St Louis - MAD Madrid Barajas

STLMAD

Lambert-St Louis

Sun 10/4

6:00 am-12:15 pm

1 stop23h 15m

Madrid Barajas

Tue 10/20

2:35 pm-11:54 pm

2 stops16h 19m

$722

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 February, then you should wait until April to fly from St. Louis, when ticket prices are also cheap, with an average price of $690.

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 $908 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 $557 on momondo.

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

You could potentially save up to 19% 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	$262
Fastest flight time	11h 40m
Direct flights	None

The best one-way flight to Spain from St. Louis in the past 72 hours is $262. The best round-trip flight deal from St. Louis to Spain found on momondo in the last 72 hours is $642.

The fastest flight from St. Louis to Spain takes 11h 40m

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 September 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 8,223 reviews	Search Lufthansa flights
Delta	PriceFrom $489	Free Cancellation	Rating 7.8 8,556 reviews	Search Delta flights
British Airways	PriceFrom $516	Free Cancellation	Rating 6.7 8,210 reviews	Search British Airways flights
Iberia	PriceFrom $523	Free Cancellation	Rating 7.0 3,246 reviews	Search Iberia flights
United Airlines	PriceFrom $560	Free Cancellation	Rating 7.4 10,174 reviews	Search United Airlines flights
American Airlines	PriceFrom $581	Free Cancellation	Rating 7.1 12,044 reviews	Search American Airlines flights
Air Canada	PriceFrom $624	Free Cancellation	Rating 7.1 11,593 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.