$406 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 5/12. 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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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$744
Overall average: $834
Finnair
Mon 3/2Mon 3/9
MAD - STL • 1 stop
Cheapest one-way
$406
Typical prices: $635-$893
Multiple Airlines
Tue 5/12
MAD - 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

Mon, Mar 2 - Mon, Mar 9
Finnair Logo
10:00 am - 11:56 pm
MAD
-
STL
20h 56m
1 stop
Finnair Logo
11:22 am - 5:50 am
STL
-
MAD
12h 28m
1 stop
$744Finnair
Mon, Mar 2 - Mon, Mar 9
United Airlines Logo
8:25 am - 11:59 pm
MAD
-
STL
22h 34m
2 stops
United Airlines Logo
11:25 am - 9:15 am
STL
-
MAD
15h 50m
2 stops
$780United Airlines
Mon, Mar 2 - Sun, Mar 8
Lufthansa Logo
10:30 am - 8:23 pm
BCN
-
STL
16h 53m
1 stop
Lufthansa Logo
7:00 pm - 5:45 pm
STL
-
BCN
16h 45m
2 stops
$780Lufthansa
Mon, Mar 2 - Sun, Mar 8
KLM Logo
1:00 pm - 11:36 pm
BCN
-
STL
17h 36m
2 stops
KLM Logo
6:59 pm - 7:35 am
STL
-
BCN
30h 36m
1 stop
$789KLM
Mon, Mar 2 - Sun, Mar 8
KLM Logo
10:55 am - 8:41 pm
BCN
-
STL
16h 46m
1 stop
KLM Logo
6:59 pm - 7:35 am
STL
-
BCN
30h 36m
1 stop
$790KLM
Fri, Mar 6 - Tue, Mar 10
Lufthansa Logo
6:00 am - 1:55 pm
MAD
-
STL
14h 55m
1 stop
Lufthansa Logo
7:00 pm - 5:50 pm
STL
-
MAD
16h 50m
2 stops
$796Lufthansa
Fri, Mar 6 - Tue, Mar 10
Multiple Airlines Logo
11:00 am - 8:43 pm
MAD
-
STL
16h 43m
2 stops
Multiple Airlines Logo
1:39 pm - 11:30 am
STL
-
MAD
15h 51m
2 stops
$804Multiple Airlines
Mon, Mar 2 - Sun, Mar 8
American Airlines Logo
10:40 am - 8:55 am
BCN
-
STL
29h 15m
1 stop
American Airlines Logo
5:15 am - 6:05 am
STL
-
BCN
18h 50m
1 stop
$808American Airlines
Mon, Mar 2 - Sun, Mar 8
Multiple Airlines Logo
1:35 pm - 10:59 pm
BCN
-
STL
16h 24m
2 stops
Multiple Airlines Logo
7:00 pm - 2:45 pm
STL
-
BCN
37h 45m
2 stops
$812Multiple Airlines
Fri, Mar 6 - Tue, Mar 10
American Airlines Logo
1:00 pm - 7:30 pm
MAD
-
STL
13h 30m
1 stop
American Airlines Logo
11:59 am - 5:45 am
STL
-
MAD
11h 46m
1 stop
$813American Airlines
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$406
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 Madrid 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 2,294 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)