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

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

What airlines fly to Spain?

United Airlines, Iberia 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 30% of people opting to fly with this airline when traveling to Spain. Keep in mind that there are 8 different airlines that fly to Spain on a routine basis, so you have a few additional options to choose from.

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 January 2026, there are 8 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.

$324 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.

8:30 am - 8:20 am

STL

BCN

16h 50m

1 stop

12:35 pm - 10:59 pm

BCN

STL

40h 24m

2 stops

$465United Airlines

Tue, Mar 3 - Tue, Mar 10

12:15 pm - 8:20 am

STL

BCN

13h 05m

1 stop

12:35 pm - 9:07 pm

BCN

STL

38h 32m

2 stops

$467United Airlines

Tue, Mar 3 - Tue, Mar 17

8:53 am - 7:35 pm

STL

VLC

27h 42m

2 stops

8:30 pm - 7:30 pm

VLC

STL

30h 00m

1 stop

$471British Airways

Sun, Apr 19 - Tue, Apr 28

2:29 pm - 7:35 pm

STL

VLC

22h 06m

2 stops

8:30 pm - 7:30 pm

VLC

STL

30h 00m

1 stop

$472British Airways

Sun, Apr 19 - Tue, Apr 28

7:00 am - 8:25 am

STL

IBZ

18h 25m

2 stops

9:05 am - 11:48 pm

IBZ

STL

21h 43m

2 stops

$504American Airlines

Mon, Apr 13 - Tue, Apr 21

7:40 pm - 7:35 pm

STL

VLC

16h 55m

2 stops

6:15 am - 6:27 pm

VLC

STL

19h 12m

2 stops

$538American Airlines

Sun, Apr 19 - Mon, Apr 27

7:00 am - 12:40 pm

STL

OVD

22h 40m

2 stops

5:40 pm - 11:01 am

OVD

STL

24h 21m

2 stops

$773Iberia

Thu, Feb 26 - Mon, Mar 2

7:00 am - 5:00 pm

STL

OVD

27h 00m

2 stops

5:40 pm - 11:01 am

OVD

STL

24h 21m

2 stops

$825Iberia

Thu, Feb 26 - Mon, Mar 2

1:00 pm - 5:55 pm

STL

BIO

21h 55m

2 stops

7:15 am - 7:28 pm

BIO

STL

19h 13m

3 stops

$1,372Air Canada

Sun, May 17 - Sat, May 23

9:57 am - 12:05 pm

STL

BIO

19h 08m

3 stops

12:45 pm - 12:21 pm

BIO

STL

30h 36m

3 stops

$1,477Air Canada

Wed, Feb 11 - Sun, Feb 15

Lufthansa flights from St. Louis to Spain

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

Lufthansa

Apr 19

STL3:30 pmLambert-St Louis

13h 25m

1 stop

VLC11:55 amValencia

Apr 28

VLC6:20 pmValencia

26h 05m

1 stop

STL1:25 pmLambert-St Louis

$505

Lufthansa

Apr 1

STL3:30 pmLambert-St Louis

18h 10m

1 stop

MAD4:40 pmMadrid Barajas

Apr 9

MAD8:25 amMadrid Barajas

21h 31m

2 stops

STL10:56 pmLambert-St Louis

$607

Lufthansa

Apr 19

STL3:30 pmLambert-St Louis

13h 25m

1 stop

VLC11:55 amValencia

Apr 27

VLC6:25 pmValencia

33h 43m

2 stops

STL9:08 pmLambert-St Louis

$609

Delta flights from St. Louis to Spain

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

Delta

Feb 26

STL7:10 amLambert-St Louis

17h 50m

2 stops

MAD8:00 amMadrid Barajas

Mar 11

MAD9:00 amMadrid Barajas

17h 42m

2 stops

STL8:42 pmLambert-St Louis

$483

Delta

Mar 2

STL6:35 amLambert-St Louis

18h 25m

2 stops

MAD8:00 amMadrid Barajas

Mar 9

MAD9:00 amMadrid Barajas

17h 42m

2 stops

STL8:42 pmLambert-St Louis

$494

Delta

Mar 10

STL7:03 amLambert-St Louis

19h 02m

1 stop

MAD8:05 amMadrid Barajas

Mar 24

MAD12:35 pmMadrid Barajas

26h 09m

2 stops

STL8:44 amLambert-St Louis

$495

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 3/3

8:30 am-8:20 am

1 stop16h 50m

Barcelona-El Prat

Tue 3/10

12:35 pm-10:59 pm

2 stops40h 24m

$465

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 3/3

12:15 pm-8:20 am

1 stop13h 05m

Barcelona-El Prat

Tue 3/17

12:35 pm-9:07 pm

2 stops38h 32m

$467

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sun 4/19

8:53 am-7:35 pm

2 stops27h 42m

Valencia

Tue 4/28

8:30 pm-7:30 pm

1 stop30h 00m

$471

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sun 4/19

2:29 pm-7:35 pm

2 stops22h 06m

Valencia

Tue 4/28

8:30 pm-7:30 pm

1 stop30h 00m

$472

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Mon 4/13

7:00 am-8:25 am

2 stops18h 25m

Ibiza

Tue 4/21

9:05 am-11:48 pm

2 stops21h 43m

$504

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sun 4/19

7:40 pm-7:35 pm

2 stops16h 55m

Valencia

Mon 4/27

6:15 am-6:27 pm

2 stops19h 12m

$538

St. LouisOviedo

STL - OVD

STLOVD

Lambert-St Louis

Thu 2/26

7:00 am-12:40 pm

2 stops22h 40m

Oviedo Asturias

Mon 3/2

5:40 pm-11:01 am

2 stops24h 21m

$773

St. LouisOviedo

STL - OVD

STLOVD

Lambert-St Louis

Thu 2/26

7:00 am-5:00 pm

2 stops27h 00m

Oviedo Asturias

Mon 3/2

5:40 pm-11:01 am

2 stops24h 21m

$825

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Sun 5/17

1:00 pm-5:55 pm

2 stops21h 55m

Bilbao

Sat 5/23

7:15 am-7:28 pm

3 stops19h 13m

$1,372

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Wed 2/11

9:57 am-12:05 pm

3 stops19h 08m

Bilbao

Sun 2/15

12:45 pm-12:21 pm

3 stops30h 36m

$1,477

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 February to fly from St. Louis, when ticket prices are also cheap, with an average price of $640.

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 $657 on momondo.

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 50m
Direct flights	None

The fastest flight from St. Louis to Spain takes 10h 50m

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 January 2026, there are 8 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 $482	Free Cancellation	Rating 6.8 7,756 reviews	Search Lufthansa flights
British Airways	PriceFrom $516	Free Cancellation	Rating 6.7 7,705 reviews	Search British Airways flights
United Airlines	PriceFrom $567	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
Iberia	PriceFrom $580	Free Cancellation	Rating 7.0 3,100 reviews	Search Iberia flights
Delta	PriceFrom $580	Free Cancellation	Rating 7.9 8,127 reviews	Search Delta flights
American Airlines	PriceFrom $585	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
KLM	PriceFrom $590	Free Cancellation	Rating 7.7 1,443 reviews	Search KLM flights
Air Canada	PriceFrom $593	Free Cancellation	Rating 7.1 10,667 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.