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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

Book the best Madrid fare with no extra fees

Flight deals from St Louis to Madrid

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Madrid Airport? If you want to travel next month, return fares start from $1,299. Find the lowest prices on one-way and return tickets right here.
Madrid.$1,043 per passenger.Departing Tue, 13 Oct, returning Tue, 20 Oct.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 13 Oct, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Tue, 20 Oct, arriving in St Louis.Price includes taxes and charges.From $1,043, select.
Madrid.$1,045 per passenger.Departing Tue, 1 Dec, returning Thu, 10 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 1 Dec, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Thu, 10 Dec, arriving in St Louis.Price includes taxes and charges.From $1,045, select.
Madrid.$1,046 per passenger.Departing Sun, 27 Sep, returning Tue, 13 Oct.Return flight with Finnair.Outbound indirect flight with Finnair, departs from St Louis on Sun, 27 Sep, arriving in Madrid.Inbound indirect flight with Finnair, departs from Madrid on Tue, 13 Oct, arriving in St Louis.Price includes taxes and charges.From $1,046, select.
Madrid.$1,049 per passenger.Departing Mon, 16 Nov, returning Wed, 25 Nov.Return flight with United.Outbound indirect flight with United, departs from St Louis on Mon, 16 Nov, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Wed, 25 Nov, arriving in St Louis.Price includes taxes and charges.From $1,049, select.
Madrid.$1,051 per passenger.Departing Wed, 3 Mar, returning Thu, 11 Mar.Return flight with United.Outbound indirect flight with United, departs from St Louis on Wed, 3 Mar, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Thu, 11 Mar, arriving in St Louis.Price includes taxes and charges.From $1,051, select.
Madrid.$1,061 per passenger.Departing Mon, 30 Nov, returning Thu, 24 Dec.Return flight with Iberia.Outbound indirect flight with Iberia, departs from St Louis on Mon, 30 Nov, arriving in Madrid.Inbound indirect flight with Iberia, departs from Madrid on Thu, 24 Dec, arriving in St Louis.Price includes taxes and charges.From $1,061, select.
Madrid.$1,063 per passenger.Departing Tue, 29 Dec, returning Tue, 12 Jan.Return flight with Air France.Outbound indirect flight with Air France, departs from St Louis on Tue, 29 Dec, arriving in Madrid.Inbound indirect flight with Air France, departs from Madrid on Tue, 12 Jan, arriving in St Louis.Price includes taxes and charges.From $1,063, select.
Madrid.$1,064 per passenger.Departing Mon, 12 Oct, returning Thu, 12 Nov.Return flight with Air France.Outbound indirect flight with Air France, departs from St Louis on Mon, 12 Oct, arriving in Madrid.Inbound indirect flight with Air France, departs from Madrid on Thu, 12 Nov, arriving in St Louis.Price includes taxes and charges.From $1,064, select.
Madrid.$1,122 per passenger.Departing Tue, 16 Feb, returning Sun, 21 Feb.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 16 Feb, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Sun, 21 Feb, arriving in St Louis.Price includes taxes and charges.From $1,122, select.
Madrid.$1,123 per passenger.Departing Tue, 13 Apr, returning Mon, 26 Apr.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 13 Apr, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Mon, 26 Apr, arriving in St Louis.Price includes taxes and charges.From $1,123, select.
Madrid.$1,136 per passenger.Departing Sun, 20 Sep, returning Wed, 30 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Sun, 20 Sep, arriving in Madrid.Inbound indirect flight with Air Canada, departs from Madrid on Wed, 30 Sep, arriving in St Louis.Price includes taxes and charges.From $1,136, select.
Madrid.$1,138 per passenger.Departing Thu, 19 Nov, returning Thu, 18 Feb.Return flight with Air France.Outbound indirect flight with Air France, departs from St Louis on Thu, 19 Nov, arriving in Madrid.Inbound indirect flight with Air France, departs from Madrid on Thu, 18 Feb, arriving in St Louis.Price includes taxes and charges.From $1,138, select.
Madrid.$1,181 per passenger.Departing Mon, 24 Aug, returning Tue, 1 Sep.Return flight with Condor.Outbound indirect flight with Condor, departs from St Louis on Mon, 24 Aug, arriving in Madrid.Inbound indirect flight with Condor, departs from Madrid on Tue, 1 Sep, arriving in St Louis.Price includes taxes and charges.From $1,181, select.
Madrid.$1,182 per passenger.Departing Tue, 13 Oct, returning Wed, 2 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 13 Oct, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Wed, 2 Dec, arriving in St Louis.Price includes taxes and charges.From $1,182, select.
Madrid.$1,203 per passenger.Departing Sat, 19 Sep, returning Fri, 18 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sat, 19 Sep, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Fri, 18 Dec, arriving in St Louis.Price includes taxes and charges.From $1,203, select.
Madrid.$1,262 per passenger.Departing Mon, 31 Aug, returning Fri, 18 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Mon, 31 Aug, arriving in Madrid.Inbound indirect flight with United, departs from Madrid on Fri, 18 Dec, arriving in St Louis.Price includes taxes and charges.From $1,262, 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 October.
Jul
from $1,613
Aug
from $1,299
Sep
from $1,136
Oct
from $1,043
Nov
from $1,049
Dec
from $1,045
Jan
Find prices
Feb
from $1,122
Mar
from $1,051
Apr
from $1,123
May
Find prices
Jun
from $1,731

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.

Madrid

12km from central Madrid
ClosestCheapest
from $1,043
Search flights

St Louis to Madrid: Flight information

The things to know before you go.
Cheapest flight found$1,043
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 $1,043. 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 $1,043.
As of July 2026, 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 Tuesday, 13 October 2026.
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, United offers the cheapest flight tickets to Madrid.

Travelling from St Louis Airport (STL) to Madrid Airport (MAD): what you need to know

  • Madrid's timezone is UTC+1, which makes Madrid seven hours ahead of St Louis.

  • Your STL to MAD flight won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Travelling during a peak month such as July? Major public holidays and other high seasons can lead to longer queues at check-in and security. Play it safe and get there up to four hours ahead of international flights and two hours before domestic departures.

  • If you want to split up your journey, just deselect 'Direct flights only' when searching for your ticket from St Louis Airport to Madrid Airport. These are the most popular stopovers between STL and MAD:

    • Chicago O'Hare International Airport

    • Boston Logan International Airport

    • Toronto Pearson International Airport

Handy information about St Louis Airport (STL)

Arriving at Madrid Airport (MAD)

  • Reserve a hotel near MAD if you're on a late St Louis Airport to Madrid Airport flight. Settle into one of these accommodation options and avoid the hassle of a long transfer:

  • Get your adventure underway by picking up a Madrid Airport rental car. Grab your wheels from Record Go, Goldcar or Click and Rent and experience the lesser-explored corners of Madrid and beyond.

  • To secure the lowest price, book your ride from Madrid Airport around one week in advance.

Getting from Madrid Airport (MAD) to central Madrid

  • Madrid Airport is approximately 13 kilometres from the centre of Madrid. Driving there takes about 20 minutes.

  • When travelling by public transport, expect a journey time of about 30 minutes.

When to fly to Madrid Airport (MAD)

  • July is the busiest month for flights from St Louis Airport to Madrid Airport. For smaller crowds, visit Madrid in March.

  • The warmest month in Madrid is July, with temperatures ranging between 18ºC (64ºF) and 37ºC (99ºF). Book your flights from St Louis Airport to Madrid Airport in this month if you enjoy this type of weather.

  • Search for cheap tickets from STL to MAD in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 12ºC (54ºF) on average.

Explore more of Spain

  • Madrid is easy to fall in love with, but there are so many other corners of Spain just waiting to be discovered. Around 274 kilometres north-east of Madrid, a visit to Zaragoza will keep you busy. Start with leading sights like Plaza del Pilar, La Seo del Salvador and Basílica de Nuestra Senora del Pilar.

  • Salamanca is another favourite destination in Spain and is around 177 kilometres west of Madrid. No journey is complete without experiencing Catedral de Salamanca, Salamanca, Casco Historico and Plaza Mayor.

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Prices shown on this page are estimated lowest prices only. Found in the last 12 days.