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Cheap Flights from St Louis (STL) to Madrid (MAD)

Compare St Louis to Madrid flight deals

Find the cheapest month or even day of the year to fly to Madrid

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Flight deals from St Louis to Madrid

Looking for a cheap last-minute deal or the best return flight from St Louis to Madrid? Find the lowest prices on one-way and return tickets right here.
Madrid.$886 per passenger.Departing Mon, 6 Oct, returning Tue, 4 Nov.Return flight with Air France.Outbound indirect flight with Air France, departs from St Louis on Mon, 6 Oct, arriving in Madrid.Inbound indirect flight with Air France, departs from Madrid on Tue, 4 Nov, arriving in St Louis.Price includes taxes and charges.From $886, select.
Madrid.$889 per passenger.Departing Wed, 21 Jan, returning Wed, 28 Jan.Return flight with United.Outbound indirect flight with United, departs from St Louis on Wed, 21 Jan, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Wed, 28 Jan, arriving in St Louis.Price includes taxes and charges.From $889, select.
Madrid.$889 per passenger.Departing Tue, 18 Nov, returning Tue, 25 Nov.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 18 Nov, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Tue, 25 Nov, arriving in St Louis.Price includes taxes and charges.From $889, select.
Madrid.$890 per passenger.Departing Tue, 7 Oct, returning Thu, 23 Oct.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 7 Oct, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Thu, 23 Oct, arriving in St Louis.Price includes taxes and charges.From $890, select.
Madrid.$897 per passenger.Departing Wed, 4 Mar, returning Wed, 11 Mar.Return flight with Iberia.Outbound indirect flight with Iberia, departs from St Louis on Wed, 4 Mar, arriving in Madrid.Inbound indirect flight with Iberia, departs from Madrid on Wed, 11 Mar, arriving in St Louis.Price includes taxes and charges.From $897, select.
Madrid.$897 per passenger.Departing Tue, 9 Dec, returning Tue, 16 Dec.Return flight with Iberia.Outbound indirect flight with Iberia, departs from St Louis on Tue, 9 Dec, arriving in Madrid.Inbound indirect flight with Iberia, departs from Madrid on Tue, 16 Dec, arriving in St Louis.Price includes taxes and charges.From $897, select.
Madrid.$899 per passenger.Departing Sun, 28 Sep, returning Tue, 14 Oct.Return flight with Iberia.Outbound indirect flight with Iberia, departs from St Louis on Sun, 28 Sep, arriving in Madrid.Inbound indirect flight with Iberia, departs from Madrid on Tue, 14 Oct, arriving in St Louis.Price includes taxes and charges.From $899, select.
Madrid.$899 per passenger.Departing Wed, 25 Feb, returning Wed, 4 Mar.Return flight with Iberia.Outbound indirect flight with Iberia, departs from St Louis on Wed, 25 Feb, arriving in Madrid.Inbound indirect flight with Iberia, departs from Madrid on Wed, 4 Mar, arriving in St Louis.Price includes taxes and charges.From $899, select.

Find the cheapest month to fly from St Louis to Madrid

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Madrid flights are currently cheapest in November.
Aug
Find prices
Sep
from $1,104
Oct
from $890
Nov
from $889
Dec
from $897
Jan
from $889
Feb
from $900
Mar
from $897
Apr
from $1,140
May
from $1,131
Jun
Find prices
Jul
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St Louis to Madrid: Alternative routes

Compare routes from St Louis to Madrid below. You may find an airport to fly into that's cheaper, faster, or easier than Madrid.

St Louis to Madrid: Flight information

The things to know before you go.
Cheapest flight found$886
Cheapest month to flyOctober

Finding cheap flights from St Louis to Madrid: Frequently asked questions

The best price we found for a return flight from St Louis to Madrid is $886. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Madrid. But we found flights with one or more stops from $886.
As of August 2025, there are no flights flying from St Louis to Madrid.
The cheapest month to fly from St Louis to Madrid is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Madrid Airport on Monday, 6 October 2025.
No airlines currently offer direct flights between St Louis Airport and Madrid Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Madrid but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Madrid is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air France offers the cheapest flight tickets to Madrid.

Flying from Lambert-St. Louis International Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD): what you need to know

  • The timezone in Madrid is UTC+1, which is six hours ahead of St Louis.

  • Your STL to MAD flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Flying during a peak month such as July? Major public holidays and other popular periods can result in longer lines at airport checkpoints. Be extra cautious and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • We make it a cinch to book a flight with a stopover. To see all your options for tickets from Lambert-St. Louis International Airport to Adolfo Suarez Madrid-Barajas Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to tour your chosen city. Top stopovers between STL and MAD include:

    • O'Hare International Airport

    • Logan International Airport

    • Pearson International Airport

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD)

  • At the moment, $676 is the lowest price we've found for a one-way Lambert-St. Louis International Airport to Adolfo Suarez Madrid-Barajas Airport flight. The best price for a return ticket is $886. Remember that fares may change due to availability at the time of booking.

  • To get your hands on cheap tickets from STL to MAD, book ahead. Airlines tend to offer lower prices when flights are first released.

  • If you're flexible with your travel plans, try using the 'Whole month' search function. It'll give you the lowest price across every month when searching for a flight from Lambert-St. Louis International Airport to Adolfo Suarez Madrid-Barajas Airport.

  • Save time looking for cheap flights from STL to MAD by creating a Price Alert. You'll get an email or push notification on the app when a new discounted fare appears.

  • Tailor your flights using filters. Select your preferred arrival and departure times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Lambert-St. Louis International Airport to Adolfo Suarez Madrid-Barajas Airport.

Handy information about Lambert-St. Louis International Airport (STL)

  • STL is located at 10701 Lambert International Blvd..

  • 78.04% of flights leaving from Lambert-St. Louis International Airport land at their destination on time.

  • To get to Lambert-St. Louis International Airport from central St Louis, it'll take about 20 minutes if you're planning to drive. Of course, this depends on traffic. It's approximately 26 kilometres from the airport to the city centre.

  • Taking public transport? Expect a journey time of around 35 minutes.

  • Get your travels off to a leisurely start by staying near STL. Whether you're catching an early flight from Lambert-St. Louis International Airport to Adolfo Suarez Madrid-Barajas Airport or just don't want to be rushed, these hotels are the answer:

Arriving at Adolfo Suarez Madrid-Barajas Airport (MAD)

Getting from Adolfo Suarez Madrid-Barajas Airport (MAD) to central Madrid

  • From Adolfo Suarez Madrid-Barajas Airport, Madrid is approximately 18 kilometres away. It takes around 25 minutes to get to the centre driving.

  • If you're taking public transport, expect a journey time of about 35 minutes.

When to fly to Adolfo Suarez Madrid-Barajas Airport (MAD)

  • July is the busiest month for flights from Lambert-St. Louis International Airport to Adolfo Suarez Madrid-Barajas Airport. For a quieter experience, travel to Madrid in April.

  • Lock in your flight from Lambert-St. Louis International Airport to Adolfo Suarez Madrid-Barajas Airport for July if you want to explore Madrid during its warmest month. You can expect temperatures of between 17ºC (63ºF) and 36ºC (97ºF).

  • Search for cheap tickets from STL to MAD in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 11ºC (52ºF) on average.

Explore more of Spain

  • Zaragoza is just one of the many places in Spain waiting to be explored once you've taken in the sights of Madrid. Around 274 kilometres away to the north-east, its best attractions include Puente de Piedra, Museo Pablo Gargallo and El Tubo.

  • If you're interested in discovering another corner of Spain, consider Salamanca, roughly 177 kilometres west of Madrid. Plaza Mayor, S.O.U. Servicio de Orientación al Universitario. Universidad de Salamanca and Pontifical University of Salamanca are the start of reasons to visit.

Plan the rest of your trip from St Louis to Madrid

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.