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 34% 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?

Air Canada, KLM, and United Airlines 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 July 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.

$316 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.

9:00 am - 8:00 am

STL

MAD

16h 00m

2 stops

10:00 am - 8:37 pm

MAD

STL

17h 37m

2 stops

$639Virgin Atlantic

Tue, Jan 19 - Tue, Jan 26

10:45 am - 8:00 am

STL

MAD

14h 15m

2 stops

12:55 pm - 8:49 pm

MAD

STL

14h 54m

1 stop

$639Virgin Atlantic

Tue, Jan 19 - Tue, Jan 26

7:15 am - 9:20 am

STL

MAD

19h 05m

1 stop

1:00 pm - 10:59 pm

MAD

STL

16h 59m

1 stop

$651Iberia

Tue, Jan 19 - Tue, Jan 26

6:30 am - 8:00 am

STL

MAD

18h 30m

2 stops

1:25 pm - 6:06 pm

MAD

STL

35h 41m

2 stops

$714United Airlines

Tue, Jan 12 - Tue, Jan 26

12:10 pm - 6:50 am

STL

MAD

11h 40m

1 stop

12:45 pm - 12:13 pm

MAD

STL

30h 28m

2 stops

$714United Airlines

Sun, Oct 4 - Wed, Oct 14

1:08 pm - 11:40 am

STL

BIO

15h 32m

2 stops

6:45 am - 1:45 pm

BIO

STL

14h 00m

1 stop

$722Lufthansa

Mon, Nov 23 - Fri, Nov 27

9:40 pm - 5:30 pm

STL

MAD

12h 50m

1 stop

1:35 pm - 11:58 pm

MAD

STL

17h 23m

1 stop

$727British Airways

Sun, Oct 4 - Wed, Oct 14

9:35 pm - 10:10 pm

STL

MAD

17h 35m

1 stop

1:35 pm - 11:58 pm

MAD

STL

17h 23m

1 stop

$727Iberia

Tue, Sep 29 - Tue, Oct 13

6:50 pm - 5:50 pm

STL

MAD

17h 00m

2 stops

6:00 am - 2:45 pm

MAD

STL

14h 45m

1 stop

$728Lufthansa

Sun, Oct 25 - Fri, Oct 30

1:06 pm - 6:30 pm

STL

MAD

22h 24m

2 stops

12:00 pm - 10:51 am

MAD

STL

29h 51m

1 stop

$770British Airways

Sun, Dec 13 - Fri, Dec 18

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Air Canada flights from St. Louis to Spain

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

Air Canada

Sep 29

STL12:10 pmLambert-St Louis

11h 40m

1 stop

MAD6:50 amMadrid Barajas

Oct 9

MAD12:45 pmMadrid Barajas

12h 56m

1 stop

STL6:41 pmLambert-St Louis

$727

Air Canada

Nov 7

STL4:05 pmLambert-St Louis

34h 30m

2 stops

BCN9:35 amBarcelona-El Prat

Nov 13

BCN1:35 pmBarcelona-El Prat

32h 51m

2 stops

STL3:26 pmLambert-St Louis

$736

Air Canada

Oct 4

STL8:55 amLambert-St Louis

14h 55m

2 stops

MAD6:50 amMadrid Barajas

Oct 14

MAD12:45 pmMadrid Barajas

32h 15m

2 stops

STL2:00 pmLambert-St Louis

$743

Delta flights from St. Louis to Spain

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

Delta

Dec 13

STL5:30 pmLambert-St Louis

15h 35m

2 stops

MAD4:05 pmMadrid Barajas

Dec 18

MAD10:00 amMadrid Barajas

17h 51m

2 stops

STL8:51 pmLambert-St Louis

$753

Delta

Sep 22

STL5:59 pmLambert-St Louis

15h 46m

2 stops

MAD4:45 pmMadrid Barajas

Oct 3

MAD6:00 amMadrid Barajas

20h 58m

2 stops

STL7:58 pmLambert-St Louis

$790

Delta

Dec 13

STL6:45 amLambert-St Louis

22h 10m

2 stops

VLC11:55 amValencia

Dec 18

VLC5:55 amValencia

24h 23m

2 stops

STL11:18 pmLambert-St Louis

$823

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 1/19

9:00 am-8:00 am

2 stops16h 00m

Madrid Barajas

Tue 1/26

10:00 am-8:37 pm

2 stops17h 37m

$639

Quickest round-trip

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 1/19

10:45 am-8:00 am

2 stops14h 15m

Madrid Barajas

Tue 1/26

12:55 pm-8:49 pm

1 stop14h 54m

$639

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 1/19

7:15 am-9:20 am

1 stop19h 05m

Madrid Barajas

Tue 1/26

1:00 pm-10:59 pm

1 stop16h 59m

$651

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 1/12

6:30 am-8:00 am

2 stops18h 30m

Madrid Barajas

Tue 1/26

1:25 pm-6:06 pm

2 stops35h 41m

$714

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 10/4

12:10 pm-6:50 am

1 stop11h 40m

Madrid Barajas

Wed 10/14

12:45 pm-12:13 pm

2 stops30h 28m

$714

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Mon 11/23

1:08 pm-11:40 am

2 stops15h 32m

Bilbao

Fri 11/27

6:45 am-1:45 pm

1 stop14h 00m

$722

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 10/4

9:40 pm-5:30 pm

1 stop12h 50m

Madrid Barajas

Wed 10/14

1:35 pm-11:58 pm

1 stop17h 23m

$727

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 9/29

9:35 pm-10:10 pm

1 stop17h 35m

Madrid Barajas

Tue 10/13

1:35 pm-11:58 pm

1 stop17h 23m

$727

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 10/25

6:50 pm-5:50 pm

2 stops17h 00m

Madrid Barajas

Fri 10/30

6:00 am-2:45 pm

1 stop14h 45m

$728

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 12/13

1:06 pm-6:30 pm

2 stops22h 24m

Madrid Barajas

Fri 12/18

12:00 pm-10:51 am

1 stop29h 51m

$770

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 $896 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 16% 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

Fastest flight time	11h 10m
Direct flights	None

The fastest flight from St. Louis to Spain takes 11h 10m

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 July 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 8,163 reviews	Search Lufthansa flights
Delta	PriceFrom $489	Free Cancellation	Rating 7.8 8,483 reviews	Search Delta flights
British Airways	PriceFrom $516	Free Cancellation	Rating 6.7 8,129 reviews	Search British Airways flights
Iberia	PriceFrom $523	Free Cancellation	Rating 7.0 3,258 reviews	Search Iberia flights
United Airlines	PriceFrom $560	Free Cancellation	Rating 7.4 10,048 reviews	Search United Airlines flights
American Airlines	PriceFrom $581	Free Cancellation	Rating 7.1 11,839 reviews	Search American Airlines flights
Air Canada	PriceFrom $624	Free Cancellation	Rating 7.1 11,399 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.