$365 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 5/18. 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
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.

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

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
Sat, Mar 7 - Wed, Mar 11
Multiple Airlines Logo
6:50 am - 3:56 pm
BIO
-
STL
16h 06m
2 stops
Multiple Airlines Logo
6:59 pm - 5:20 pm
STL
-
BIO
16h 21m
2 stops
$791Multiple Airlines
Mon, Mar 9 - Mon, Mar 16
Lufthansa Logo
11:00 am - 11:51 pm
BCN
-
STL
18h 51m
1 stop
Lufthansa Logo
12:15 pm - 8:20 am
STL
-
BCN
14h 05m
1 stop
$797Lufthansa
Mon, Mar 9 - Mon, Mar 16
United Airlines Logo
6:50 am - 9:07 pm
BCN
-
STL
20h 17m
2 stops
United Airlines Logo
11:25 am - 8:20 am
STL
-
BCN
14h 55m
2 stops
$803United Airlines
Mon, Mar 9 - Mon, Mar 16
United Airlines Logo
6:50 am - 9:42 pm
BCN
-
STL
20h 52m
2 stops
United Airlines Logo
11:25 am - 8:20 am
STL
-
BCN
14h 55m
2 stops
$804United Airlines
Mon, Mar 9 - Mon, Mar 16
Lufthansa Logo
9:55 am - 11:51 pm
BCN
-
STL
19h 56m
2 stops
Lufthansa Logo
12:15 pm - 8:20 am
STL
-
BCN
14h 05m
1 stop
$809Lufthansa
Mon, Mar 9 - Mon, Mar 16
British Airways Logo
9:35 am - 10:58 pm
BCN
-
STL
19h 23m
1 stop
British Airways Logo
2:00 pm - 8:00 am
STL
-
BCN
12h 00m
1 stop
$815British Airways
Mon, Mar 9 - Mon, Mar 16
British Airways Logo
12:30 pm - 7:30 pm
MAD
-
STL
13h 00m
1 stop
British Airways Logo
2:00 pm - 7:55 am
STL
-
MAD
11h 55m
1 stop
$819British Airways
Wed, Apr 8 - Wed, Apr 15
Iberia Logo
1:35 pm - 7:33 pm
MAD
-
STL
12h 58m
1 stop
Iberia Logo
12:27 pm - 2:25 pm
STL
-
MAD
18h 58m
1 stop
$848Iberia
Thu, Mar 5 - Mon, Mar 9
Air Canada Logo
12:25 pm - 3:29 pm
AGP
-
STL
34h 04m
2 stops
Air Canada Logo
4:05 pm - 4:10 pm
STL
-
AGP
18h 05m
2 stops
$994Air 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.

Good to know

Low seasonOctober
Cheapest flight$365
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 1,851 direct flights from within Spain to St. Louis. The most common day for departures is Monday, with 18% 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