What airlines fly to Spain?

United Airlines, American Airlines and British Airways 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 36% 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, Aer Lingus, and British Airways 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 March 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.

$395 Cheap Flights from St. Louis to Spain in 2026

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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.

12:10 pm - 6:50 am

STL

MAD

11h 40m

1 stop

6:00 am - 1:25 pm

MAD

STL

14h 25m

1 stop

$674Multiple Airlines

Sun, Aug 16 - Fri, Sep 11

5:32 pm - 8:50 am

STL

MAD

32h 18m

2 stops

6:00 am - 1:25 pm

MAD

STL

14h 25m

1 stop

$679United Airlines

Sun, Sep 20 - Fri, Oct 2

5:32 pm - 8:50 am

STL

MAD

32h 18m

2 stops

11:15 am - 12:34 am

MAD

STL

20h 19m

2 stops

$694United Airlines

Sun, Sep 20 - Thu, Oct 1

8:03 pm - 1:30 pm

STL

MAD

10h 27m

1 stop

11:45 am - 7:33 pm

MAD

STL

14h 48m

1 stop

$701Iberia

Sun, Apr 19 - Sun, Apr 26

9:40 pm - 5:30 pm

STL

MAD

12h 50m

1 stop

12:10 pm - 7:30 pm

MAD

STL

14h 20m

1 stop

$709British Airways

Sun, Sep 20 - Fri, Oct 2

9:35 pm - 8:05 pm

STL

MAD

15h 30m

1 stop

10:35 am - 7:30 pm

MAD

STL

15h 55m

1 stop

$719British Airways

Fri, Sep 18 - Tue, Oct 6

9:35 pm - 2:20 pm

STL

IBZ

33h 45m

1 stop

9:05 am - 7:33 pm

IBZ

STL

17h 28m

2 stops

$838American Airlines

Wed, May 6 - Wed, May 13

8:03 pm - 12:15 am

STL

VLC

45h 12m

2 stops

5:40 pm - 7:33 pm

VLC

STL

32h 53m

2 stops

$840Iberia

Sat, Apr 18 - Sat, Apr 25

6:53 pm - 8:25 pm

STL

VLC

18h 32m

2 stops

6:15 am - 7:33 pm

VLC

STL

20h 18m

2 stops

$852American Airlines

Sat, Apr 18 - Sat, Apr 25

2:15 pm - 5:55 pm

STL

BIO

20h 40m

2 stops

7:15 am - 9:13 pm

BIO

STL

20h 58m

3 stops

$1,232Air Canada

Tue, May 5 - Tue, May 12

Lufthansa flights from St. Louis to Spain

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

Lufthansa

Apr 22

STL3:30 pmLambert-St Louis

13h 40m

1 stop

MAD12:10 pmMadrid Barajas

Apr 29

MAD5:55 amMadrid Barajas

14h 30m

1 stop

STL1:25 pmLambert-St Louis

$710

Lufthansa

Apr 21

STL11:37 amLambert-St Louis

23h 03m

2 stops

MAD5:40 pmMadrid Barajas

Apr 28

MAD5:55 amMadrid Barajas

22h 18m

2 stops

STL9:13 pmLambert-St Louis

$712

Lufthansa

Apr 21

STL11:37 amLambert-St Louis

20h 18m

2 stops

BCN2:55 pmBarcelona-El Prat

Apr 29

BCN6:40 amBarcelona-El Prat

13h 45m

1 stop

STL1:25 pmLambert-St Louis

$713

KLM flights from St. Louis to Spain

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

KLM

Apr 22

STL5:59 pmLambert-St Louis

15h 26m

2 stops

MAD4:25 pmMadrid Barajas

Apr 29

MAD10:25 amMadrid Barajas

17h 19m

2 stops

STL8:44 pmLambert-St Louis

$755

KLM

May 4

STL9:59 amLambert-St Louis

25h 01m

2 stops

LPA5:00 pmLas Palmas de Gran Canaria

May 11

LPA7:10 amLas Palmas de Gran Canaria

40h 36m

2 stops

STL5:46 pmLambert-St Louis

$994

KLM

Mar 26

STL1:39 pmLambert-St Louis

14h 46m

2 stops

BCN10:25 amBarcelona-El Prat

Apr 2

BCN11:00 amBarcelona-El Prat

13h 53m

1 stop

STL5:53 pmLambert-St Louis

$1,073

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 8/16

12:10 pm-6:50 am

1 stop11h 40m

Madrid Barajas

Fri 9/11

6:00 am-1:25 pm

1 stop14h 25m

$674

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 9/20

5:32 pm-8:50 am

2 stops32h 18m

Madrid Barajas

Fri 10/2

6:00 am-1:25 pm

1 stop14h 25m

$679

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 9/20

5:32 pm-8:50 am

2 stops32h 18m

Madrid Barajas

Thu 10/1

11:15 am-12:34 am

2 stops20h 19m

$694

Quickest round-trip

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 4/19

8:03 pm-1:30 pm

1 stop10h 27m

Madrid Barajas

Sun 4/26

11:45 am-7:33 pm

1 stop14h 48m

$701

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 9/20

9:40 pm-5:30 pm

1 stop12h 50m

Madrid Barajas

Fri 10/2

12:10 pm-7:30 pm

1 stop14h 20m

$709

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Fri 9/18

9:35 pm-8:05 pm

1 stop15h 30m

Madrid Barajas

Tue 10/6

10:35 am-7:30 pm

1 stop15h 55m

$719

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Wed 5/6

9:35 pm-2:20 pm

1 stop33h 45m

Ibiza

Wed 5/13

9:05 am-7:33 pm

2 stops17h 28m

$838

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sat 4/18

8:03 pm-12:15 am

2 stops45h 12m

Valencia

Sat 4/25

5:40 pm-7:33 pm

2 stops32h 53m

$840

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sat 4/18

6:53 pm-8:25 pm

2 stops18h 32m

Valencia

Sat 4/25

6:15 am-7:33 pm

2 stops20h 18m

$852

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Tue 5/5

2:15 pm-5:55 pm

2 stops20h 40m

Bilbao

Tue 5/12

7:15 am-9:13 pm

3 stops20h 58m

$1,232

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 January, then you should wait until November to fly from St. Louis, when ticket prices are also cheap, with an average price of $663.

How far in advance should I book a flight 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 $855 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 $628 on momondo.

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

You could potentially save up to 2% 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	10h 27m
Direct flights	None

The fastest flight from St. Louis to Spain takes 10h 27m

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

Search flight deals

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 March 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 7,865 reviews	Search Lufthansa flights
Delta	PriceFrom $489	Free Cancellation	Rating 7.9 8,324 reviews	Search Delta flights
British Airways	PriceFrom $516	Free Cancellation	Rating 6.7 7,817 reviews	Search British Airways flights
Iberia	PriceFrom $552	Free Cancellation	Rating 7.0 3,151 reviews	Search Iberia flights
Air Canada	PriceFrom $560	Free Cancellation	Rating 7.1 10,837 reviews	Search Air Canada flights
United Airlines	PriceFrom $560	Free Cancellation	Rating 7.4 9,474 reviews	Search United Airlines flights
American Airlines	PriceFrom $582	Free Cancellation	Rating 7.1 11,491 reviews	Search American Airlines 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.