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Cheap flights from St. Louis to Spain from $241

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.
Finnair Logo
11:46 am - 8:50 am
STL
-
BCN
14h 04m
1 stop
Finnair Logo
3:05 pm - 11:56 pm
BCN
-
STL
15h 51m
1 stop
$419Finnair
Wed, Feb 18 - Wed, Feb 25
British Airways Logo
12:11 pm - 7:35 pm
STL
-
VLC
24h 24m
2 stops
British Airways Logo
8:30 pm - 7:30 pm
VLC
-
STL
30h 00m
1 stop
$420British Airways
Sun, Apr 19 - Tue, Apr 28
United Airlines Logo
10:00 am - 7:00 am
STL
-
MAD
15h 00m
2 stops
United Airlines Logo
12:40 pm - 9:07 pm
MAD
-
STL
38h 27m
2 stops
$422United Airlines
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
6:00 am - 9:15 am
STL
-
MAD
20h 15m
2 stops
United Airlines Logo
12:40 pm - 2:42 pm
MAD
-
STL
32h 02m
2 stops
$424United Airlines
Wed, Mar 4 - Wed, Mar 11
Air Canada Logo
7:00 pm - 7:00 am
STL
-
MAD
30h 00m
2 stops
Air Canada Logo
12:40 pm - 9:07 pm
MAD
-
STL
38h 27m
2 stops
$428Air Canada
Mon, Mar 9 - Tue, Mar 17
Iberia Logo
11:59 am - 5:45 am
STL
-
MAD
11h 46m
1 stop
Iberia Logo
12:00 pm - 11:48 pm
MAD
-
STL
17h 48m
1 stop
$438Iberia
Tue, Mar 10 - Tue, Mar 17
American Airlines Logo
11:22 am - 12:50 pm
STL
-
IBZ
18h 28m
2 stops
American Airlines Logo
9:05 am - 9:11 pm
IBZ
-
STL
18h 06m
2 stops
$476American Airlines
Thu, Mar 5 - Thu, Mar 12
Air Canada Logo
7:30 am - 2:10 pm
STL
-
VLC
23h 40m
2 stops
Air Canada Logo
6:00 am - 8:05 pm
VLC
-
STL
21h 05m
2 stops
$580Air Canada
Sun, May 17 - Thu, May 28
Iberia Logo
7:00 am - 8:40 am
STL
-
OVD
18h 40m
2 stops
Iberia Logo
9:25 am - 11:01 am
OVD
-
STL
32h 36m
2 stops
$758Iberia
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
11:50 am - 8:30 am
STL
-
SVQ
14h 40m
2 stops
American Airlines Logo
9:15 am - 11:02 pm
SVQ
-
STL
20h 47m
2 stops
$876American Airlines
Sat, Mar 21 - Mon, Mar 30

United Airlines flights from St. Louis to Spain

Our best United Airlines deals on St. Louis to Spain flight tickets
United Airlines
Mar 10
STL10:00 amLambert-St Louis
15h 00m
2 stops
MAD7:00 amMadrid Barajas
Mar 17
MAD12:40 pmMadrid Barajas
38h 27m
2 stops
STL9:07 pmLambert-St Louis
$422
United Airlines
Mar 4
STL6:00 amLambert-St Louis
20h 15m
2 stops
MAD9:15 amMadrid Barajas
Mar 11
MAD12:40 pmMadrid Barajas
32h 02m
2 stops
STL2:42 pmLambert-St Louis
$424
United Airlines
Feb 16
STL7:41 amLambert-St Louis
17h 19m
2 stops
MAD8:00 amMadrid Barajas
Feb 23
MAD6:00 amMadrid Barajas
46h 05m
2 stops
STL9:05 pmLambert-St Louis
$468

British Airways flights from St. Louis to Spain

Our best British Airways deals on St. Louis to Spain flight tickets
British Airways
Apr 19
STL12:11 pmLambert-St Louis
24h 24m
2 stops
VLC7:35 pmValencia
Apr 27
VLC8:30 pmValencia
30h 00m
1 stop
STL7:30 pmLambert-St Louis
$420
British Airways
Feb 18
STL2:00 pmLambert-St Louis
14h 10m
2 stops
BCN11:10 amBarcelona-El Prat
Feb 25
BCN10:40 amBarcelona-El Prat
19h 42m
1 stop
STL11:22 pmLambert-St Louis
$422
British Airways
Apr 19
STL12:11 pmLambert-St Louis
24h 24m
2 stops
VLC7:35 pmValencia
Apr 28
VLC8:30 pmValencia
34h 18m
2 stops
STL11:48 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 21, 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

Wed 2/18

11:46 am-8:50 am

1 stop14h 04m

Barcelona-El Prat

Wed 2/25

3:05 pm-11:56 pm

1 stop15h 51m

$419

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sun 4/19

12:11 pm-7:35 pm

2 stops24h 24m

Valencia

Tue 4/28

8:30 pm-7:30 pm

1 stop30h 00m

$420

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 3/10

10:00 am-7:00 am

2 stops15h 00m

Madrid Barajas

Tue 3/17

12:40 pm-9:07 pm

2 stops38h 27m

$422

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 3/4

6:00 am-9:15 am

2 stops20h 15m

Madrid Barajas

Wed 3/11

12:40 pm-2:42 pm

2 stops32h 02m

$424

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 3/9

7:00 pm-7:00 am

2 stops30h 00m

Madrid Barajas

Tue 3/17

12:40 pm-9:07 pm

2 stops38h 27m

$428

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 3/10

11:59 am-5:45 am

1 stop11h 46m

Madrid Barajas

Tue 3/17

12:00 pm-11:48 pm

1 stop17h 48m

$438

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Thu 3/5

11:22 am-12:50 pm

2 stops18h 28m

Ibiza

Thu 3/12

9:05 am-9:11 pm

2 stops18h 06m

$476

St. LouisValencia

STL - VLC

STLVLC

Lambert-St Louis

Sun 5/17

7:30 am-2:10 pm

2 stops23h 40m

Valencia

Thu 5/28

6:00 am-8:05 pm

2 stops21h 05m

$580

St. LouisOviedo

STL - OVD

STLOVD

Lambert-St Louis

Thu 2/26

7:00 am-8:40 am

2 stops18h 40m

Oviedo Asturias

Mon 3/2

9:25 am-11:01 am

2 stops32h 36m

$758

St. LouisSeville

STL - SVQ

STLSVQ

Lambert-St Louis

Sat 3/21

11:50 am-8:30 am

2 stops14h 40m

Sevilla

Mon 3/30

9:15 am-11:02 pm

2 stops20h 47m

$876

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 $858 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.

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

You could potentially save up to 39% 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

  • 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 $482Free CancellationRating
6.8
7,738 reviews
Search Lufthansa flights
British AirwaysPriceFrom $516Free CancellationRating
6.7
7,689 reviews
Search British Airways flights
United AirlinesPriceFrom $567Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
DeltaPriceFrom $580Free CancellationRating
7.9
8,088 reviews
Search Delta flights
American AirlinesPriceFrom $585Free CancellationRating
7.2
11,173 reviews
Search American Airlines flights
IberiaPriceFrom $586Free CancellationRating
7.0
3,094 reviews
Search Iberia flights
KLMPriceFrom $590Free CancellationRating
7.7
1,442 reviews
Search KLM flights
Air CanadaPriceFrom $624Free CancellationRating
7.1
10,646 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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