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Cheap flights from St. Louis to Spain from $242

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Spain departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Spain

Cheap round-trip flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
6:57 pm - 8:40 am
STL
-
BCN
30h 43m1 stop
Virgin Atlantic Logo
10:15 am - 8:37 pm
BCN
-
STL
17h 22m2 stops
$351Virgin Atlantic
Mon, Jan 19 - Tue, Feb 3
Air Canada Logo
8:05 am - 8:00 am
STL
-
MAD
16h 55m2 stops
Air Canada Logo
1:35 pm - 2:30 pm
MAD
-
STL
31h 55m2 stops
$356Air Canada
Sun, Jan 18 - Tue, Feb 3
Air Canada Logo
8:05 am - 9:35 am
STL
-
BCN
18h 30m2 stops
Air Canada Logo
1:35 pm - 2:30 pm
BCN
-
STL
31h 55m2 stops
$381Air Canada
Mon, Jan 19 - Tue, Feb 3
British Airways Logo
11:55 am - 8:50 am
STL
-
BCN
13h 55m1 stop
British Airways Logo
10:40 am - 7:29 pm
BCN
-
STL
15h 49m1 stop
$391British Airways
Mon, Jan 19 - Tue, Feb 3
United Airlines Logo
6:40 pm - 9:35 am
STL
-
BCN
31h 55m2 stops
United Airlines Logo
1:35 pm - 2:30 pm
BCN
-
STL
31h 55m2 stops
$419United Airlines
Tue, Jan 27 - Tue, Feb 3
British Airways Logo
7:05 am - 7:30 pm
STL
-
VLC
29h 25m2 stops
British Airways Logo
8:30 pm - 7:30 pm
VLC
-
STL
30h 00m1 stop
$420British Airways
Sun, Apr 19 - Mon, Apr 27
Iberia Logo
9:25 am - 6:15 am
STL
-
MAD
13h 50m1 stop
Iberia Logo
12:40 pm - 11:22 pm
MAD
-
STL
17h 42m1 stop
$439Iberia
Tue, Feb 10 - Tue, Feb 17
Iberia Logo
10:37 am - 12:50 pm
STL
-
IBZ
19h 13m2 stops
Iberia Logo
5:40 pm - 9:12 pm
IBZ
-
STL
34h 32m2 stops
$487Iberia
Sun, Feb 22 - Sun, Mar 1
United Airlines Logo
7:41 am - 12:10 pm
STL
-
VLC
21h 29m2 stops
United Airlines Logo
6:00 am - 1:55 pm
VLC
-
STL
14h 55m1 stop
$490United Airlines
Wed, Feb 25 - Sun, Mar 1
American Airlines Logo
9:33 am - 12:50 pm
STL
-
IBZ
20h 17m2 stops
American Airlines Logo
9:05 am - 11:35 pm
IBZ
-
STL
21h 30m2 stops
$502American Airlines
Fri, Feb 6 - Fri, Feb 13

KLM flights from St. Louis to Spain

Our best KLM deals on St. Louis to Spain flight tickets
KLM
Feb 5
STL11:23 amLambert-St Louis
24h 22m
2 stops
LPA5:45 pmLas Palmas de Gran Canaria
Feb 12
LPA6:05 amLas Palmas de Gran Canaria
20h 36m
2 stops
STL8:41 pmLambert-St Louis
$614
KLM
Mar 17
STL5:21 pmLambert-St Louis
18h 54m
2 stops
LPA5:15 pmLas Palmas de Gran Canaria
Mar 23
LPA6:50 pmLas Palmas de Gran Canaria
28h 03m
2 stops
STL5:53 pmLambert-St Louis
$627
KLM
Jan 12
STL7:10 amLambert-St Louis
19h 05m
1 stop
MAD9:15 amMadrid Barajas
Jan 14
MAD6:00 amMadrid Barajas
17h 45m
2 stops
STL4:45 pmLambert-St Louis
$1,020

British Airways flights from St. Louis to Spain

Our best British Airways deals on St. Louis to Spain flight tickets
British Airways
Jan 19
STL11:55 amLambert-St Louis
13h 55m
1 stop
BCN8:50 amBarcelona-El Prat
Feb 3
BCN10:40 amBarcelona-El Prat
15h 49m
1 stop
STL7:29 pmLambert-St Louis
$391
British Airways
Apr 19
STL7:05 amLambert-St Louis
29h 25m
2 stops
VLC7:30 pmValencia
Apr 27
VLC8:30 pmValencia
30h 00m
1 stop
STL7:30 pmLambert-St Louis
$420
British Airways
Jan 27
STL2:54 pmLambert-St Louis
15h 46m
2 stops
BCN1:40 pmBarcelona-El Prat
Feb 3
BCN10:40 amBarcelona-El Prat
19h 19m
1 stop
STL10:59 pmLambert-St Louis
$423

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Spain that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from St. Louis to Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 1/19

6:57 pm-8:40 am

1 stop30h 43m

Barcelona-El Prat

Tue 2/3

10:15 am-8:37 pm

2 stops17h 22m

$351

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

8:05 am-8:00 am

2 stops16h 55m

Madrid Barajas

Tue 2/3

1:35 pm-2:30 pm

2 stops31h 55m

$356

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 1/19

8:05 am-9:35 am

2 stops18h 30m

Barcelona-El Prat

Tue 2/3

1:35 pm-2:30 pm

2 stops31h 55m

$381

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 1/19

11:55 am-8:50 am

1 stop13h 55m

Barcelona-El Prat

Tue 2/3

10:40 am-7:29 pm

1 stop15h 49m

$391

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 1/27

6:40 pm-9:35 am

2 stops31h 55m

Barcelona-El Prat

Tue 2/3

1:35 pm-2:30 pm

2 stops31h 55m

$419

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sun 4/19

7:05 am-7:30 pm

2 stops29h 25m

Valencia

Mon 4/27

8:30 pm-7:30 pm

1 stop30h 00m

$420

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 2/10

9:25 am-6:15 am

1 stop13h 50m

Madrid Barajas

Tue 2/17

12:40 pm-11:22 pm

1 stop17h 42m

$439

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Sun 2/22

10:37 am-12:50 pm

2 stops19h 13m

Ibiza

Sun 3/1

5:40 pm-9:12 pm

2 stops34h 32m

$487

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Wed 2/25

7:41 am-12:10 pm

2 stops21h 29m

Valencia

Sun 3/1

6:00 am-1:55 pm

1 stop14h 55m

$490

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Fri 2/6

9:33 am-12:50 pm

2 stops20h 17m

Ibiza

Fri 2/13

9:05 am-11:35 pm

2 stops21h 30m

$502

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Spain from

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

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 $870 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 $724 on momondo.

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

You could potentially save up to 23% 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

12h 28m

Direct flights

None
The fastest flight from St. Louis to Spain takes 12h 28m
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?

  • 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
British AirwaysPriceFrom $516Free CancellationRating
6.7
7,659 reviews
Search British Airways flights
LufthansaPriceFrom $524Free CancellationRating
6.8
7,698 reviews
Search Lufthansa flights
United AirlinesPriceFrom $567Free CancellationRating
7.4
9,142 reviews
Search United Airlines flights
IberiaPriceFrom $586Free CancellationRating
7.0
3,079 reviews
Search Iberia flights
American AirlinesPriceFrom $587Free CancellationRating
7.2
11,097 reviews
Search American Airlines flights
DeltaPriceFrom $587Free CancellationRating
7.9
8,032 reviews
Search Delta flights
KLMPriceFrom $590Free CancellationRating
7.7
1,434 reviews
Search KLM flights
Air CanadaPriceFrom $624Free CancellationRating
7.1
10,603 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.

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