$574+ Cheap flights from Madrid, Spain (MAD) to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — STL
Oct 11 — Oct 181
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Madrid to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Madrid to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Madrid to St. LouisExplore the most affordable flight options available from Madrid to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
Explore the most affordable flight options available from Madrid to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
This deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:15 am -
1 stop15h 06m
Mon 12/71:19 pm -
1 stop11h 26m
Deal found 9/10![United Airlines logo]()
$826
This lol.travel deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:35 pm -
1 stop14h 09m
Mon 9/285:18 pm -
1 stop13h 12m
Deal found 9/8![Finnair logo]()
$848
This lol.travel deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:35 pm -
1 stop14h 09m
Tue 9/295:18 pm -
1 stop13h 12m
Deal found 9/11![Finnair logo]()
$849
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:05 am -
2 stops17h 26m
Sun 11/226:00 pm -
2 stops14h 20m
Deal found 9/10![Delta logo]()
$857
This KLM deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/87:00 am -
2 stops18h 13m
Mon 12/146:05 pm -
2 stops14h 15m
Deal found 9/6![Multiple Airlines logo]()
$864
This Expedia deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2012:00 pm -
1 stop15h 04m
Sun 11/224:25 pm -
1 stop30h 20m
Deal found 9/10![British Airways logo]()
$877
This Rumbo deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:25 pm -
1 stop13h 18m
Mon 9/285:11 pm -
1 stop32h 54m
Deal found 9/8![British Airways logo]()
$891
This Iberia deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:35 pm -
1 stop14h 09m
Mon 9/285:18 pm -
2 stops15h 32m
Deal found 9/8![Iberia logo]()
$893
This British Airways deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:35 pm -
1 stop17h 52m
Wed 12/91:15 pm -
1 stop12h 40m
Deal found 9/7![British Airways logo]()
$912
This Gotogate deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:55 am -
1 stop14h 30m
Sun 10/113:30 pm -
1 stop17h 30m
Deal found 9/7![Lufthansa logo]()
$918
Best flights from Madrid to St. LouisDiscover carefully curated flight deals from Madrid to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Madrid to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This British Airways deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/211:00 pm -
1 stop14h 19m
Mon 1/259:52 am -
2 stops19h 03m
Deal found 9/6![British Airways logo]()
$799
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:05 am -
2 stops17h 26m
Sun 11/226:00 pm -
2 stops14h 20m
Deal found 9/10![Delta logo]()
$857
Last-minute flights from Madrid to St. LouisDiscover last-minute flight deals from Madrid to St. Louis. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Madrid to St. Louis. Data last updated September 11, 2026 and is based on user searches.
This deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:15 am -
1 stop14h 56m
Tue 12/811:05 am -
1 stop15h 10m
Deal found 9/10![United Airlines logo]()
$926
This British Airways deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:35 pm -
1 stop17h 52m
Wed 12/91:15 pm -
1 stop12h 40m
Deal found 9/7![British Airways logo]()
$912
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:45 pm -
2 stops29h 03m
Wed 12/96:00 am -
1 stop20h 15m
Deal found 9/7![United Airlines logo]()
$948
This deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:15 am -
1 stop15h 06m
Mon 12/71:19 pm -
1 stop11h 26m
Deal found 9/10![United Airlines logo]()
$826
This lol.travel deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:35 pm -
1 stop14h 09m
Mon 9/285:18 pm -
1 stop13h 12m
Deal found 9/8![Finnair logo]()
$848
This lol.travel deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:35 pm -
1 stop14h 09m
Tue 9/295:18 pm -
1 stop13h 12m
Deal found 9/11![Finnair logo]()
$849
This Rumbo deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:25 pm -
1 stop13h 18m
Mon 9/285:11 pm -
1 stop32h 54m
Deal found 9/8![British Airways logo]()
$891
This Iberia deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:35 pm -
1 stop14h 09m
Mon 9/285:18 pm -
2 stops15h 32m
Deal found 9/8![Iberia logo]()
$893
This Gotogate deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:55 am -
1 stop14h 30m
Sun 10/113:30 pm -
1 stop17h 30m
Deal found 9/7![Lufthansa logo]()
$918
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:55 am -
1 stop14h 30m
Sun 10/118:30 am -
1 stop16h 35m
Deal found 9/7![United Airlines logo]()
$940
This Flighttix deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:45 pm -
1 stop12h 56m
Fri 10/3010:53 am -
2 stops14h 07m
Deal found 9/8![Air Canada logo]()
$942
This Booking.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:25 am -
2 stops19h 56m
Fri 10/306:50 pm -
2 stops17h 00m
Deal found 9/8![Lufthansa logo]()
$950
One-way flights from Madrid to St. LouisSearch for one-way flight options from Madrid to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Madrid to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:40 pm -
3 stops35h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$574
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:40 am -
3 stops46h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$666
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:15 am -
3 stops37h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$699
This Justfly.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:40 am -
2 stops20h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Aer Lingus logo]()
$780
This KAYAK deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:25 pm -
2 stops30h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![TAP AIR PORTUGAL logo]()
$797
Find flight deals from Madrid to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Madrid (MAD) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $798 (KLM) |
One-way from | $574 (Kiwi.com) |
Popular in | May |
Cheapest in | March |
Average price | $1,132 |
Cheapflights Fare Finder
Customize your flight search to find flights from Madrid to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 11, 2026.
Use the filters below to find and compare flights from Madrid to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MadridSt. Louis
MAD Madrid Barajas - STL Lambert-St Louis
MADSTL
Madrid Barajas
Thu 10/15
1:40 pm-5:40 pm
3 stops35h 00m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$574
MadridSt. Louis
MAD Madrid Barajas - STL Lambert-St Louis
MADSTL
Madrid Barajas
Wed 10/14
10:25 pm-9:59 pm
2 stops30h 34m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$797
MadridSt. Louis
MAD Madrid Barajas - STL Lambert-St Louis
MADSTL
Madrid Barajas
Thu 1/21
1:00 pm-8:19 pm
1 stop14h 19m
Lambert-St Louis
Mon 1/25
9:52 am-11:55 am
2 stops19h 03m
$799
MadridSt. Louis
MAD Madrid Barajas - STL Lambert-St Louis
MADSTL
Madrid Barajas
Thu 10/15
10:25 am-9:59 pm
1 stop18h 34m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$824
MadridSt. Louis
MAD Madrid Barajas - STL Lambert-St Louis
MADSTL
Madrid Barajas
Fri 11/20
6:05 am-4:31 pm
2 stops17h 26m
Lambert-St Louis
Sun 11/22
6:00 pm-3:20 pm
2 stops14h 20m
$857
Quickest round-trip
MadridSt. Louis
MAD Madrid Barajas - STL Lambert-St Louis
MADSTL
Madrid Barajas
Fri 10/16
1:35 pm-8:57 pm
1 stop14h 22m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$945
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Madrid-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Madrid-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Madrid-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Madrid-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Madrid-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Madrid to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Madrid with our price prediction graph.
MAD-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Madrid to St. Louis
Related info for your journey
Find useful and relevant information for your journey from Madrid to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Madrid
Popular flights
St. Louis flight routes