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Cheap flights from St. Louis to Spain from $247

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 3/7. 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.
Lufthansa Logo
11:22 am - 9:00 am
STL
-
BCN
14h 38m1 stop
Lufthansa Logo
6:50 am - 10:58 pm
BCN
-
STL
23h 08m2 stops
$421Lufthansa
Mon, Jan 19 - Mon, Feb 2
Lufthansa Logo
11:22 am - 9:00 am
STL
-
BCN
14h 38m1 stop
Lufthansa Logo
11:00 am - 11:59 pm
BCN
-
STL
19h 59m1 stop
$433Lufthansa
Mon, Jan 19 - Mon, Feb 2
United Airlines Logo
9:57 am - 9:35 am
STL
-
BCN
16h 38m2 stops
United Airlines Logo
1:35 pm - 2:30 pm
BCN
-
STL
31h 55m2 stops
$468United Airlines
Mon, Jan 19 - Mon, Feb 2
Air Canada Logo
4:05 pm - 9:35 am
STL
-
BCN
34h 30m2 stops
Air Canada Logo
1:35 pm - 9:00 pm
BCN
-
STL
38h 25m2 stops
$470Air Canada
Sun, Feb 1 - Tue, Feb 17
United Airlines Logo
7:00 am - 8:00 am
STL
-
MAD
18h 00m2 stops
United Airlines Logo
1:35 pm - 9:00 pm
MAD
-
STL
38h 25m2 stops
$472United Airlines
Thu, Feb 5 - Thu, Feb 12
American Airlines Logo
2:54 pm - 10:20 am
STL
-
MAD
12h 26m1 stop
American Airlines Logo
5:05 pm - 9:03 am
MAD
-
STL
22h 58m1 stop
$479American Airlines
Thu, Jan 8 - Wed, Jan 21
American Airlines Logo
2:54 pm - 11:55 am
STL
-
BCN
14h 01m1 stop
American Airlines Logo
10:40 am - 7:29 pm
BCN
-
STL
15h 49m1 stop
$484American Airlines
Thu, Jan 15 - Sun, Feb 1
Iberia Logo
12:06 pm - 12:05 am
STL
-
VLC
28h 59m2 stops
Iberia Logo
9:40 am - 9:03 am
VLC
-
STL
30h 23m2 stops
$514Iberia
Sat, Jan 10 - Sat, Jan 17
Iberia Logo
11:05 am - 5:00 pm
STL
-
IBZ
22h 55m2 stops
Iberia Logo
9:05 am - 6:16 pm
IBZ
-
STL
16h 11m2 stops
$728Iberia
Fri, Jan 30 - Tue, Feb 3
Air Canada Logo
8:05 am - 12:05 pm
STL
-
BIO
21h 00m3 stops
Air Canada Logo
12:50 pm - 12:29 pm
BIO
-
STL
30h 39m3 stops
$776Air Canada
Wed, Jan 21 - Wed, Jan 28

Delta flights from St. Louis to Spain

Our best Delta deals on St. Louis to Spain flight tickets
Delta
Mar 23
STL12:22 pmLambert-St Louis
13h 43m
1 stop
MAD8:05 amMadrid Barajas
Apr 1
MAD12:40 pmMadrid Barajas
15h 03m
1 stop
STL8:43 pmLambert-St Louis
$582
Find similar
Delta
Mar 17
STL5:00 pmLambert-St Louis
18h 40m
2 stops
MAD5:40 pmMadrid Barajas
Mar 25
MAD11:00 amMadrid Barajas
27h 52m
2 stops
STL8:52 amLambert-St Louis
$584
Find similar
Delta
Mar 15
STL9:45 amLambert-St Louis
15h 15m
1 stop
MAD7:00 amMadrid Barajas
Mar 25
MAD11:00 amMadrid Barajas
27h 52m
2 stops
STL8:52 amLambert-St Louis
$585
Find similar

British Airways flights from St. Louis to Spain

Our best British Airways deals on St. Louis to Spain flight tickets
British Airways
Jan 15
STL5:04 pmLambert-St Louis
18h 21m
2 stops
BCN6:25 pmBarcelona-El Prat
Feb 1
BCN12:30 pmBarcelona-El Prat
17h 14m
1 stop
STL10:44 pmLambert-St Louis
$472
Find similar
British Airways
Jan 24
STL6:43 pmLambert-St Louis
15h 07m
2 stops
MAD4:50 pmMadrid Barajas
Jan 31
MAD1:15 pmMadrid Barajas
16h 29m
1 stop
STL10:44 pmLambert-St Louis
$476
Find similar
British Airways
Jan 24
STL11:05 amLambert-St Louis
19h 30m
2 stops
MAD1:35 pmMadrid Barajas
Jan 31
MAD7:25 pmMadrid Barajas
30h 09m
2 stops
STL6:34 pmLambert-St Louis
$481
Find similar

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 December 9, 2025.
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

11:22 am-9:00 am

1 stop14h 38m

Barcelona-El Prat

Mon 2/2

6:50 am-10:58 pm

2 stops23h 08m

$421

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 1/19

11:22 am-9:00 am

1 stop14h 38m

Barcelona-El Prat

Mon 2/2

11:00 am-11:59 pm

1 stop19h 59m

$433

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 1/19

9:57 am-9:35 am

2 stops16h 38m

Barcelona-El Prat

Mon 2/2

1:35 pm-2:30 pm

2 stops31h 55m

$468

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 2/1

4:05 pm-9:35 am

2 stops34h 30m

Barcelona-El Prat

Tue 2/17

1:35 pm-9:00 pm

2 stops38h 25m

$470

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Thu 2/5

7:00 am-8:00 am

2 stops18h 00m

Madrid Barajas

Thu 2/12

1:35 pm-9:00 pm

2 stops38h 25m

$472

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Thu 1/8

2:54 pm-10:20 am

1 stop12h 26m

Madrid Barajas

Wed 1/21

5:05 pm-9:03 am

1 stop22h 58m

$479

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Thu 1/15

2:54 pm-11:55 am

1 stop14h 01m

Barcelona-El Prat

Sun 2/1

10:40 am-7:29 pm

1 stop15h 49m

$484

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sat 1/10

12:06 pm-12:05 am

2 stops28h 59m

Valencia

Sat 1/17

9:40 am-9:03 am

2 stops30h 23m

$514

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Fri 1/30

11:05 am-5:00 pm

2 stops22h 55m

Ibiza

Tue 2/3

9:05 am-6:16 pm

2 stops16h 11m

$728

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Wed 1/21

8:05 am-12:05 pm

3 stops21h 00m

Bilbao

Wed 1/28

12:50 pm-12:29 pm

3 stops30h 39m

$776

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

What is the cheapest day to depart on your flight to Spain?

The cheapest day to depart from St. Louis to Spain is on a Tuesday when prices can be found for as low as $867. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Spain for around $1,135.

What is the cheapest time of day to depart on your flight to Spain?

Flying to Spain from St. Louis in the morning is the least expensive time of day to depart. momondo users have found prices as low as $905 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Spain is in the afternoon when prices are around $1,043.

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 $895 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 25% 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 27m

Direct flights

None
The fastest flight from St. Louis to Spain takes 11h 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?

  • 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
LufthansaPriceFrom $524Free CancellationRating
6.8
7,619 reviews
Search Lufthansa flights
British AirwaysPriceFrom $546Free CancellationRating
6.7
7,573 reviews
Search British Airways flights
DeltaPriceFrom $552Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $574Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
IberiaPriceFrom $586Free CancellationRating
7.0
3,045 reviews
Search Iberia flights
KLMPriceFrom $590Free CancellationRating
7.7
1,431 reviews
Search KLM flights
American AirlinesPriceFrom $613Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
Air CanadaPriceFrom $624Free CancellationRating
7.1
10,515 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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Find better results for your trip to Spain

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Popular flights according to clicks in the last 7 days on momondo
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