$227 Cheap Flights from St. Louis (STL) to Madrid (MAD)

View $227 flight on Tue, Feb 17, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD)

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

Prices were available within the past 7 days and start at $227 for one-way flights and $438 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Feb 18 - Thu, Feb 26
STL
St. Louis
MAD
Madrid
$438 Roundtrip, found 4 hours ago
$438
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Feb 18 from St. Louis to Madrid, returning Thu, Feb 26, priced at $438 found 4 hours ago
Delta
Mon, Feb 9 - Thu, Feb 19
STL
St. Louis
MAD
Madrid
$443 Roundtrip, found 3 days ago
$443
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Feb 9 from St. Louis to Madrid, returning Thu, Feb 19, priced at $443 found 3 days ago
Virgin Atlantic
Tue, Feb 17 - Tue, Mar 10
STL
St. Louis
MAD
Madrid
$443 Roundtrip, found 4 hours ago
$443
Roundtrip
found 4 hours ago
Select Virgin Atlantic flight, departing Tue, Feb 17 from St. Louis to Madrid, returning Tue, Mar 10, priced at $443 found 4 hours ago
Virgin Atlantic
Sun, Jan 18 - Thu, Jan 29
STL
St. Louis
MAD
Madrid
$453 Roundtrip, found 4 days ago
$453
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Sun, Jan 18 from St. Louis to Madrid, returning Thu, Jan 29, priced at $453 found 4 days ago
Delta
Tue, Feb 10 - Thu, Feb 19
STL
St. Louis
MAD
Madrid
$457 Roundtrip, found 3 days ago
$457
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Feb 10 from St. Louis to Madrid, returning Thu, Feb 19, priced at $457 found 3 days ago
Delta
Tue, Feb 17 - Thu, Feb 26
STL
St. Louis
MAD
Madrid
$457 Roundtrip, found 17 hours ago
$457
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Feb 17 from St. Louis to Madrid, returning Thu, Feb 26, priced at $457 found 17 hours ago
Delta
Sun, Feb 8 - Wed, Feb 18
STL
St. Louis
MAD
Madrid
$461 Roundtrip, found 3 days ago
$461
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Feb 8 from St. Louis to Madrid, returning Wed, Feb 18, priced at $461 found 3 days ago
Air Canada
Mon, Dec 1 - Wed, Dec 10
STL
St. Louis
MAD
Madrid
$465 Roundtrip, found 15 hours ago
$465
Roundtrip
found 15 hours ago
Select Air Canada flight, departing Mon, Dec 1 from St. Louis to Madrid, returning Wed, Dec 10, priced at $465 found 15 hours ago
Air France
Wed, Feb 18 - Wed, Mar 4
STL
St. Louis
MAD
Madrid
$469 Roundtrip, found 4 hours ago
$469
Roundtrip
found 4 hours ago
Select Air France flight, departing Wed, Feb 18 from St. Louis to Madrid, returning Wed, Mar 4, priced at $469 found 4 hours ago
KLM
Sat, Dec 6 - Tue, Dec 16
STL
St. Louis
MAD
Madrid
$469 Roundtrip, found 5 days ago
$469
Roundtrip
found 5 days ago
Select KLM flight, departing Sat, Dec 6 from St. Louis to Madrid, returning Tue, Dec 16, priced at $469 found 5 days ago

Find the cheapest month to fly from St. Louis (STL) to Madrid (MAD)

February is typically the cheapest month to fly

From $445 - $1,285 per traveler.

Alternative airports near Madrid

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Adolfo Suarez Madrid-Barajas MAD. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $563
MAD
Adolfo Suarez Madrid-Barajas
CheapestClosest
Average driving time to city center20 min
Flights from $563

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD) cost?
Get a cheap one-way flight from $227 or cheap return flight from $438 from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD)?
Planning your getaway for February is a great way to save, as it's the cheapest month for flights between STL and MAD. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD)?
To find the cheapest airline that'll fly you from STL to MAD, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD)?
You'll need to catch a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from STL to MAD?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD) last-minute?
Booking your ticket from STL to MAD shortly before your getaway is generally more expensive. But if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a STL to MAD flight and hotel package?
Booking a STL to MAD flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Adolfo Suarez Madrid-Barajas Airport (MAD)?
Generally, it's possible to reschedule or cancel your STL to MAD flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Adolfo Suárez Madrid-Barajas
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic
Roundtrip price
$438
Distance
4417 mi

Book with confidence

St. Louis to Madrid Flights

The cheapest times to fly from St. Louis to Madrid

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Madrid are during the month of February. You can find some of the cheapest flights from St. Louis to Madrid with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Madrid

Sunday is one of the best days to book for cheap flights from St. Louis to Madrid: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Madrid

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Madrid in 2025. You can also book with separate airlines for your outbound and return journeys, from $227 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Madrid flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Madrid airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Madrid Flights

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*Available to One Key members.