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Cheap flights from St. Louis to Spain from $299

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 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Multiple Airlines Logo
4:05 pm - 8:00 amSTL-MAD
32h 55m2 stops
Multiple Airlines Logo
6:00 am - 1:55 pmMAD-STL
14h 55m1 stop
$456Multiple Airlines
Find Deal
Sat, Jan 17 - Fri, Jan 30
Multiple Airlines Logo
4:05 pm - 8:00 amSTL-MAD
32h 55m2 stops
Multiple Airlines Logo
6:00 am - 1:55 pmMAD-STL
14h 55m1 stop
$458Multiple Airlines
Find Deal
Sat, Jan 17 - Fri, Jan 30
United Airlines Logo
2:45 pm - 9:35 amSTL-BCN
35h 50m2 stops
United Airlines Logo
1:35 pm - 10:59 pmBCN-STL
40h 24m2 stops
$461United Airlines
Find Deal
Sun, Feb 1 - Tue, Feb 17
Air Canada Logo
4:05 pm - 8:00 amSTL-MAD
32h 55m2 stops
Air Canada Logo
1:35 pm - 3:29 pmMAD-STL
32h 54m2 stops
$461Air Canada
Find Deal
Sat, Jan 17 - Fri, Jan 30
Air Canada Logo
4:05 pm - 8:00 amSTL-MAD
32h 55m2 stops
Air Canada Logo
1:35 pm - 3:29 pmMAD-STL
32h 54m2 stops
$468Air Canada
Find Deal
Sat, Jan 17 - Fri, Jan 30
United Airlines Logo
7:00 am - 9:15 amSTL-MAD
19h 15m1 stop
United Airlines Logo
6:00 am - 1:55 pmMAD-STL
14h 55m1 stop
$473United Airlines
Find Deal
Sat, Jan 17 - Fri, Jan 30
Iberia Logo
9:33 am - 8:25 amSTL-IBZ
39h 52m2 stops
Iberia Logo
9:05 am - 9:03 amIBZ-STL
30h 58m2 stops
$508Iberia
Find Deal
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
11:05 am - 12:50 pmSTL-IBZ
18h 45m2 stops
American Airlines Logo
9:05 am - 9:15 pmIBZ-STL
19h 10m2 stops
$700American Airlines
Find Deal
Fri, Jan 30 - Tue, Feb 3
American Airlines Logo
10:00 am - 8:40 amSTL-EAS
15h 40m2 stops
American Airlines Logo
1:40 pm - 9:03 amEAS-STL
26h 23m2 stops
$782American Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
Iberia Logo
2:21 pm - 1:20 pmSTL-TFN
17h 59m2 stops
Iberia Logo
9:15 am - 8:58 amTFN-STL
29h 43m2 stops
$1,024Iberia
Find Deal
Wed, Mar 18 - Mon, Mar 30

British Airways flights from St. Louis to Spain

Our best British Airways deals on St. Louis to Spain flight tickets
British Airways
Feb 12
STL2:00 pmLambert-St Louis
23h 15m
2 stops
VLC8:15 pmValencia
Feb 20
VLC9:05 pmValencia
27h 58m
2 stops
STL6:03 pmLambert-St Louis
$478
Find similar
British Airways
Mar 4
STL2:00 pmLambert-St Louis
14h 10m
2 stops
BCN11:10 amBarcelona-El Prat
Mar 10
BCN10:40 amBarcelona-El Prat
17h 44m
1 stop
STL10:24 pmLambert-St Louis
$546
Find similar
British Airways
Feb 23
STL6:33 pmLambert-St Louis
14h 32m
2 stops
BCN4:05 pmBarcelona-El Prat
Mar 2
BCN8:00 pmBarcelona-El Prat
33h 11m
2 stops
STL10:11 pmLambert-St Louis
$554
Find similar

Iberia flights from St. Louis to Spain

Our best Iberia deals on St. Louis to Spain flight tickets
Iberia
Jan 8
STL9:33 amLambert-St Louis
39h 52m
2 stops
IBZ8:25 amIbiza
Jan 15
IBZ9:05 amIbiza
30h 58m
2 stops
STL9:03 amLambert-St Louis
$508
Find similar
Iberia
Mar 4
STL11:46 amLambert-St Louis
14h 04m
1 stop
BCN8:50 amBarcelona-El Prat
Mar 10
BCN10:40 amBarcelona-El Prat
17h 44m
1 stop
STL10:24 pmLambert-St Louis
$539
Find similar
Iberia
Feb 4
STL11:55 amLambert-St Louis
13h 55m
1 stop
BCN8:50 amBarcelona-El Prat
Feb 19
BCN12:30 pmBarcelona-El Prat
17h 38m
1 stop
STL11:08 pmLambert-St Louis
$568
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 November 24, 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. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 1/17

4:05 pm-8:00 am

2 stops32h 55m

Madrid Barajas

Fri 1/30

6:00 am-1:55 pm

1 stop14h 55m

$456

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 1/17

4:05 pm-8:00 am

2 stops32h 55m

Madrid Barajas

Fri 1/30

6:00 am-1:55 pm

1 stop14h 55m

$458

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 2/1

2:45 pm-9:35 am

2 stops35h 50m

Barcelona-El Prat

Tue 2/17

1:35 pm-10:59 pm

2 stops40h 24m

$461

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 1/17

4:05 pm-8:00 am

2 stops32h 55m

Madrid Barajas

Fri 1/30

1:35 pm-3:29 pm

2 stops32h 54m

$461

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 1/17

4:05 pm-8:00 am

2 stops32h 55m

Madrid Barajas

Fri 1/30

1:35 pm-3:29 pm

2 stops32h 54m

$468

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 1/17

7:00 am-9:15 am

1 stop19h 15m

Madrid Barajas

Fri 1/30

6:00 am-1:55 pm

1 stop14h 55m

$473

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Thu 1/8

9:33 am-8:25 am

2 stops39h 52m

Ibiza

Thu 1/15

9:05 am-9:03 am

2 stops30h 58m

$508

St. LouisIbiza

STL - IBZ

STLIBZ

Lambert-St Louis

Fri 1/30

11:05 am-12:50 pm

2 stops18h 45m

Ibiza

Tue 2/3

9:05 am-9:15 pm

2 stops19h 10m

$700

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Wed 1/21

10:00 am-8:40 am

2 stops15h 40m

San Sebastián

Sun 1/25

1:40 pm-9:03 am

2 stops26h 23m

$782

St. LouisSanta Cruz de Tenerife

STL - TFN

STLTFN

Lambert-St Louis

Wed 3/18

2:21 pm-1:20 pm

2 stops17h 59m

Santa Cruz de Tenerife Tenerife-Norte

Mon 3/30

9:15 am-8:58 am

2 stops29h 43m

$1,024

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 $912 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 $736 on momondo.

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

You could potentially save up to 10% 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

Direct flights

None
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
7,589 reviews
Search Lufthansa flights
British AirwaysPriceFrom $546Free CancellationRating
6.7
7,535 reviews
Search British Airways flights
DeltaPriceFrom $552Free CancellationRating
7.9
7,998 reviews
Search Delta flights
United AirlinesPriceFrom $578Free CancellationRating
7.4
9,044 reviews
Search United Airlines flights
IberiaPriceFrom $586Free CancellationRating
7.0
3,033 reviews
Search Iberia flights
KLMPriceFrom $590Free CancellationRating
7.7
1,420 reviews
Search KLM flights
Air CanadaPriceFrom $624Free CancellationRating
7.1
10,469 reviews
Search Air Canada flights
American AirlinesPriceFrom $636Free CancellationRating
7.2
11,040 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.

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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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