$393 Find Cheap Flights from Spain to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$762
Finnair
Thu 2/26Mon 3/2
BCN - STL • 1 stop
Cheapest one-way
$393
Typical prices: $495-$826
Multiple Airlines
Tue 3/3
BCN - STL • 3 stops
When to travel
April
Cheapest • 29% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Spain to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Spain to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Spain to St. Louis

Thu, Feb 26 - Mon, Mar 2
Finnair Logo
10:40 am - 7:29 pm
BCN
-
STL
15h 49m
1 stop
Finnair Logo
11:22 am - 7:05 am
STL
-
BCN
12h 43m
1 stop
$762Finnair
Thu, Feb 26 - Mon, Mar 2
Lufthansa Logo
11:15 am - 11:59 pm
MAD
-
STL
19h 44m
1 stop
Lufthansa Logo
11:39 am - 9:15 am
STL
-
MAD
14h 36m
1 stop
$777Lufthansa
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
6:50 am - 7:14 pm
BCN
-
STL
19h 24m
2 stops
United Airlines Logo
9:55 am - 9:00 am
STL
-
BCN
16h 05m
2 stops
$779United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
6:50 am - 7:14 pm
BCN
-
STL
19h 24m
2 stops
United Airlines Logo
7:00 am - 9:00 am
STL
-
BCN
19h 00m
1 stop
$780United Airlines
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
6:00 am - 4:42 pm
MAD
-
STL
17h 42m
2 stops
Multiple Airlines Logo
3:47 pm - 3:20 pm
STL
-
MAD
16h 33m
2 stops
$787Multiple Airlines
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
6:00 am - 1:55 pm
MAD
-
STL
14h 55m
1 stop
United Airlines Logo
7:00 am - 9:15 am
STL
-
MAD
20h 15m
1 stop
$790United Airlines
Thu, Feb 26 - Mon, Mar 2
KLM Logo
10:55 am - 9:06 am
BCN
-
STL
29h 11m
1 stop
KLM Logo
10:13 am - 8:40 am
STL
-
BCN
15h 27m
1 stop
$791KLM
Mon, Jun 15 - Fri, Jul 31
Multiple Airlines Logo
5:55 am - 1:25 pm
MAD
-
STL
14h 30m
1 stop
Multiple Airlines Logo
12:10 pm - 6:50 am
STL
-
MAD
11h 40m
1 stop
$832Multiple Airlines
Wed, May 13 - Sun, May 24
Air Canada Logo
6:50 am - 8:04 pm
BIO
-
STL
20h 14m
2 stops
Air Canada Logo
1:00 pm - 5:55 pm
STL
-
BIO
21h 55m
2 stops
$859Air Canada
Thu, May 14 - Sun, May 24
Air Canada Logo
7:15 am - 8:05 pm
BIO
-
STL
43h 50m
2 stops
Air Canada Logo
1:00 pm - 5:55 pm
STL
-
BIO
21h 55m
2 stops
$867Air Canada
Booking Insights

KAYAK's insights & trends for flights to St. Louis

Get data-powered insights and trends for flights to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to St. Louis is April, where tickets cost $714 on average for one-way flights. On the other hand, the most expensive months are December and October, where the average cost of tickets from Spain is $1,483 and $1,180 respectively. For return trips, the best month to travel is April with an average price of $714.

Find deals

Good to know

Low seasonOctober
Cheapest flight$393
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 20% increase in price.
Flight from Barcelona to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    There are 13 miles between St. Louis city center and Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    There is only 1 airport in St. Louis, called Lambert-St Louis Airport (STL). It can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • How does KAYAK find such low prices on flights to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 2,298 direct flights from within Spain to St. Louis. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

St. Louis (STL)