$404 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 12/3. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$755
Overall average: $684
Multiple Airlines
Thu 2/19Mon 2/23
BCN - STL • 1 stop
Cheapest one-way
$404
Typical prices: $885-$1,096
Multiple Airlines
Wed 12/3
BCN - STL • 2 stops
When to travel
February
Cheapest • 22% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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 19 - Mon, Feb 23
Multiple Airlines Logo
11:00 am - 11:58 pmBCN-STL
19h 58m1 stop
Multiple Airlines Logo
10:30 am - 9:35 amSTL-BCN
16h 05m2 stops
$755Multiple Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23
Lufthansa Logo
11:00 am - 11:58 pmBCN-STL
19h 58m1 stop
Lufthansa Logo
11:27 am - 9:00 amSTL-BCN
14h 33m1 stop
$757Lufthansa
Find Deal
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
6:50 am - 9:00 pmBCN-STL
21h 10m2 stops
United Airlines Logo
7:00 am - 9:35 amSTL-BCN
19h 35m2 stops
$761United Airlines
Find Deal
Tue, Jan 13 - Sun, Jan 25
United Airlines Logo
6:50 am - 7:27 pmBCN-STL
19h 37m2 stops
United Airlines Logo
6:00 pm - 9:00 amSTL-BCN
32h 00m2 stops
$763United Airlines
Find Deal
Mon, Jan 19 - Sat, Jan 31
British Airways Logo
10:40 am - 7:29 pmBCN-STL
15h 49m1 stop
British Airways Logo
6:43 pm - 7:10 pmSTL-BCN
17h 27m2 stops
$780British Airways
Find Deal
Mon, Jan 19 - Sat, Jan 31
Finnair Logo
11:00 am - 10:05 pmBCN-STL
18h 05m1 stop
Finnair Logo
10:00 am - 7:05 amSTL-BCN
14h 05m1 stop
$787Finnair
Find Deal
Fri, Nov 7 - Tue, Nov 11
Delta Logo
1:05 pm - 9:15 amMAD-STL
27h 10m2 stops
Delta Logo
6:09 pm - 7:10 pmSTL-MAD
18h 01m2 stops
$825Delta
Find Deal
Fri, Nov 7 - Tue, Nov 11
Delta Logo
11:10 am - 9:15 amBCN-STL
29h 05m2 stops
Delta Logo
4:30 pm - 5:05 pmSTL-BCN
17h 35m2 stops
$827Delta
Find Deal
Wed, Mar 25 - Wed, Apr 8
British Airways Logo
1:45 pm - 9:48 pmMAD-STL
14h 03m1 stop
British Airways Logo
12:06 pm - 9:05 amSTL-MAD
13h 59m1 stop
$836British Airways
Find Deal
Wed, Dec 3 - Mon, Dec 8
Finnair Logo
12:55 am - 7:27 pmMAD-STL
25h 32m1 stop
Finnair Logo
1:20 pm - 9:25 amSTL-MAD
13h 05m1 stop
$1,229Finnair
Find Deal
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 May, where tickets cost $761 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 $1,212 and $1,180 respectively. For return trips, the best month to travel is February with an average price of $684.

Find deals

Good to know

Low seasonOctober
Cheapest flight$404
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 2% lower on average.
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.

  • What is the cheapest day to fly to St. Louis?

    Based on KAYAK data, the cheapest day to fly to St. Louis is Thursday where tickets can be as cheap as $671. On the other hand, the most expensive day to fly is Saturday, where prices are $1,070 on average.

  • 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.

  • What is the cheapest time of day to fly to St. Louis?

    The cheapest time of day to fly to St. Louis is generally in the morning, when flights cost $973 on average. The most expensive time of day to fly to St. Louis is generally in the morning, which is peak travel time and where the average cost of a ticket is $973.

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

    Each week there are around 2,505 direct flights from within Spain to St. Louis. The most common day for departures is Friday, with 16% 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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.