$330+ Cheap flights from St. Louis (STL) to Madrid, Spain (MAD)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
May 24 — May 311
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Madrid 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
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Cheapest flights from St. Louis to MadridExplore the most affordable flight options available from St. Louis to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
Explore the most affordable flight options available from St. Louis to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
This Gotogate deal was found by Cheapflights users on 4/23. 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.
Tue 10/68:55 am
STL
- MAD
1 stop16h 55m
Multiple Airlines
Tue 10/205:55 am
MAD
- STL
1 stop14h 30m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$702
This United Airlines deal was found by Cheapflights users on 4/24. 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 10/286:40 am
STL
- MAD
2 stops18h 20m
United Airlines
Wed 11/111:35 pm
MAD
- STL
2 stops34h 05m
United Airlines
Deal found 4/24![United Airlines logo]()
$719
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 10/611:59 am
STL
- MAD
1 stop14h 01m
United Airlines
Tue 10/201:30 pm
MAD
- STL
2 stops31h 48m
United Airlines
Deal found 4/23![United Airlines logo]()
$721
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:35 pm
STL
- MAD
1 stop13h 00m
British Airways
Wed 10/2112:40 pm
MAD
- STL
1 stop17h 51m
British Airways
Deal found 4/20![British Airways logo]()
$723
This United Airlines deal was found by Cheapflights users on 4/20. 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 10/149:23 am
STL
- MAD
2 stops15h 42m
United Airlines
Wed 10/211:30 pm
MAD
- STL
2 stops31h 48m
United Airlines
Deal found 4/20![United Airlines logo]()
$725
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:15 pm
STL
- MAD
2 stops15h 35m
Lufthansa
Wed 11/116:00 am
MAD
- STL
1 stop14h 55m
Lufthansa
Deal found 4/20![Lufthansa logo]()
$726
This FlightHub deal was found by Cheapflights users on 4/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:55 am
STL
- MAD
1 stop16h 55m
Multiple Airlines
Tue 10/205:55 am
MAD
- STL
1 stop14h 30m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 4/20. 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 10/2111:45 am
STL
- MAD
2 stops13h 20m
United Airlines
Fri 10/306:00 am
MAD
- STL
1 stop14h 55m
United Airlines
Deal found 4/20![United Airlines logo]()
$731
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:18 am
STL
- MAD
1 stop11h 12m
American Airlines
Fri 10/93:55 pm
MAD
- STL
1 stop14h 46m
American Airlines
Deal found 4/21![American Airlines logo]()
$736
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:13 pm
STL
- MAD
1 stop32h 07m
British Airways
Fri 11/271:15 pm
MAD
- STL
1 stop14h 40m
British Airways
Deal found 4/20![British Airways logo]()
$737
This KLM deal was found by Cheapflights users on 4/21. 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.
Wed 10/711:51 am
STL
- MAD
1 stop17h 24m
KLM
Wed 10/216:00 am
MAD
- STL
2 stops16h 58m
KLM
Deal found 4/21![KLM logo]()
$738
Best flights from St. Louis to MadridDiscover carefully curated flight deals from St. Louis to Madrid that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
Discover carefully curated flight deals from St. Louis to Madrid that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
This United Airlines deal was found by Cheapflights users on 4/22. 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 10/219:23 am
STL
- MAD
2 stops15h 42m
United Airlines
Fri 10/306:00 am
MAD
- STL
1 stop14h 55m
United Airlines
Deal found 4/22![United Airlines logo]()
$731
This KLM deal was found by Cheapflights users on 4/21. 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.
Wed 10/711:51 am
STL
- MAD
1 stop17h 24m
KLM
Wed 10/216:00 am
MAD
- STL
2 stops16h 58m
KLM
Deal found 4/21![KLM logo]()
$738
This Delta deal was found by Cheapflights users on 4/20. 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.
Wed 10/211:30 pm
STL
- MAD
2 stops13h 25m
Delta
Fri 10/3010:00 am
MAD
- STL
2 stops28h 12m
Delta
Deal found 4/20![Delta logo]()
$741
This KLM deal was found by Cheapflights users on 4/23. 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.
Mon 5/411:42 am
STL
- MAD
2 stops15h 13m
Multiple Airlines
Wed 5/202:35 pm
MAD
- STL
2 stops15h 46m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$957
This Delta deal was found by Cheapflights users on 4/23. 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.
Tue 9/291:30 pm
STL
- MAD
1 stop15h 45m
Delta
Fri 10/912:45 pm
MAD
- STL
2 stops17h 54m
Delta
Deal found 4/23![Delta logo]()
$741
This United Airlines deal was found by Cheapflights users on 4/22. 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 8/176:00 am
STL
- MAD
2 stops17h 50m
United Airlines
Mon 8/318:25 am
MAD
- STL
1 stop36h 00m
United Airlines
Deal found 4/22![United Airlines logo]()
$842
This KLM deal was found by Cheapflights users on 4/19. 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.
Mon 8/310:19 am
STL
- MAD
2 stops13h 01m
Multiple Airlines
Mon 8/109:50 am
MAD
- STL
1 stop18h 00m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,058
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Tue 8/188:55 am
STL
- MAD
1 stop16h 55m
United Airlines
Wed 8/191:30 pm
MAD
- STL
1 stop31h 32m
United Airlines
Deal found 4/19![United Airlines logo]()
$1,043
This Delta deal was found by Cheapflights users on 4/21. 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.
Mon 8/310:51 am
STL
- MAD
2 stops17h 29m
Delta
Mon 8/106:00 am
MAD
- STL
2 stops17h 49m
Delta
Deal found 4/21![Delta logo]()
$1,067
This Finnair deal was found by Cheapflights users on 4/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/19:08 am
STL
- MAD
1 stop16h 12m
Multiple Airlines
Sat 8/1511:30 am
MAD
- STL
1 stop18h 10m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$1,092
This Delta deal was found by Cheapflights users on 4/21. 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.
Sat 8/18:00 am
STL
- MAD
1 stop21h 15m
Delta
Sat 8/156:00 am
MAD
- STL
2 stops21h 31m
Delta
Deal found 4/21![Delta logo]()
$1,112
Last-minute flights from St. Louis to MadridDiscover last-minute flight deals from St. Louis to Madrid. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Madrid. Data last updated April 24, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 4/238:30 am
STL
- MAD
1 stop16h 35m
United Airlines
Thu 5/712:45 pm
MAD
- STL
2 stops29h 03m
United Airlines
Deal found 4/23![United Airlines logo]()
$998
This lol.travel deal was found by Cheapflights users on 4/22. 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.
Sun 4/265:21 pm
STL
- MAD
1 stop13h 09m
Finnair
Tue 5/1211:45 am
MAD
- STL
1 stop17h 34m
Finnair
Deal found 4/22![Finnair logo]()
$927
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sun 4/266:30 am
STL
- MAD
2 stops18h 35m
United Airlines
Tue 5/1212:45 pm
MAD
- STL
1 stop14h 40m
United Airlines
Deal found 4/22![United Airlines logo]()
$957
This KLM deal was found by Cheapflights users on 4/22. 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.
Sun 4/2611:42 am
STL
- MAD
2 stops15h 13m
KLM
Tue 5/1212:45 pm
MAD
- STL
2 stops15h 53m
KLM
Deal found 4/22![KLM logo]()
$959
This lol.travel deal was found by Cheapflights users on 4/23. 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.
Mon 5/45:21 pm
STL
- MAD
1 stop13h 09m
Finnair
Wed 5/2011:45 am
MAD
- STL
1 stop17h 34m
Finnair
Deal found 4/23![Finnair logo]()
$926
This Gotogate deal was found by Cheapflights users on 4/23. 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 5/41:05 pm
STL
- MAD
2 stops21h 35m
Multiple Airlines
Wed 5/205:55 am
MAD
- STL
1 stop14h 30m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 5/512:15 pm
STL
- MAD
1 stop12h 50m
United Airlines
Fri 5/1512:45 pm
MAD
- STL
2 stops31h 02m
United Airlines
Deal found 4/22![United Airlines logo]()
$948
This Cheapflightsfares deal was found by Cheapflights users on 4/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:34 am
STL
- MAD
2 stops19h 36m
Lufthansa
Fri 5/156:00 am
MAD
- STL
1 stop14h 25m
Lufthansa
Deal found 4/19![Lufthansa logo]()
$949
This oojo deal was found by Cheapflights users on 4/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:35 pm
STL
- MAD
1 stop12h 55m
British Airways
Fri 5/151:00 pm
MAD
- STL
1 stop13h 30m
British Airways
Deal found 4/19![British Airways logo]()
$955
One-way flights from St. Louis to MadridSearch for one-way flight options from St. Louis to Madrid. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
Search for one-way flight options from St. Louis to Madrid. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:40 pm
STL
- MAD
1 stop15h 25m
British Airways
Deal found 4/20![British Airways logo]()
$330
This Delta deal was found by Cheapflights users on 4/20. 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.
Sun 10/119:00 am
STL
- MAD
2 stops17h 55m
Delta
Deal found 4/20![Delta logo]()
$341
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:00 pm
STL
- MAD
1 stop13h 35m
British Airways
Deal found 4/20![British Airways logo]()
$390
This KAYAK deal was found by Cheapflights users on 4/20. 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.
Thu 10/82:40 pm
STL
- MAD
2 stops33h 10m
Austrian Airlines
Deal found 4/20![Austrian Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Tue 7/144:10 pm
STL
- MAD
2 stops43h 05m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Sun 10/113:30 pm
STL
- MAD
3 stops26h 45m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 8/285:33 pm
STL
- MAD
3 stops33h 02m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$505
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 7/24:17 pm
STL
- MAD
2 stops59h 48m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$508
This Justfly.com deal was found by Cheapflights users on 4/23. 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.
Sun 7/129:08 am
STL
- MAD
2 stops17h 47m
Aer Lingus
Deal found 4/23![Aer Lingus logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 8/282:18 pm
STL
- MAD
2 stops36h 17m
WestJet
Deal found 4/20![WestJet logo]()
$528
Find flight deals from St. Louis to Madrid
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Madrid (MAD). 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 April 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $702 (Gotogate) |
One-way from | $330 (Cheapflightsfares) |
Popular in | June |
Cheapest in | November |
Average price | $725 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Madrid 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 2,558,603 searches. Data last updated April 24, 2026.
Use the filters below to find and compare flights from St. Louis to Madrid that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Wed 10/21
9:23 am-8:05 am
2 stops15h 42m
Madrid Barajas
Fri 10/30
6:00 am-2:55 pm
1 stop14h 55m
$731
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Wed 10/7
11:51 am-12:15 pm
1 stop17h 24m
Madrid Barajas
Wed 10/21
6:00 am-3:58 pm
2 stops16h 58m
$738
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Wed 10/21
1:30 pm-9:55 am
2 stops13h 25m
Madrid Barajas
Fri 10/30
10:00 am-8:12 am
2 stops28h 12m
$741
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Tue 9/29
1:30 pm-12:15 pm
1 stop15h 45m
Madrid Barajas
Fri 10/9
12:45 pm-11:39 pm
2 stops17h 54m
$741
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 8/17
6:00 am-6:50 am
2 stops17h 50m
Madrid Barajas
Mon 8/31
8:25 am-1:25 pm
1 stop36h 00m
$842
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 5/4
11:42 am-9:55 am
2 stops15h 13m
Madrid Barajas
Wed 5/20
2:35 pm-11:21 pm
2 stops15h 46m
$957
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Tue 8/18
8:55 am-8:50 am
1 stop16h 55m
Madrid Barajas
Wed 8/19
1:30 pm-2:02 pm
1 stop31h 32m
$1,043
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 8/3
10:19 am-6:20 am
2 stops13h 01m
Madrid Barajas
Mon 8/10
9:50 am-8:50 pm
1 stop18h 00m
$1,058
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 8/3
10:51 am-11:20 am
2 stops17h 29m
Madrid Barajas
Mon 8/10
6:00 am-4:49 pm
2 stops17h 49m
$1,067
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Sat 8/1
9:08 am-8:20 am
1 stop16h 12m
Madrid Barajas
Sat 8/15
11:30 am-10:40 pm
1 stop18h 10m
$1,092
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Madrid
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Madrid in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on St. Louis-Madrid flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Madrid flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Madrid flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Madrid 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 St. Louis-Madrid 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 St. Louis to Madrid
Have a flexible travel schedule? Discover the best time to fly to Madrid from St. Louis with our price prediction graph.
STL-MAD
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 St. Louis to Madrid
How far ahead should I book a flight from St. Louis to Madrid?
The best time to book flights from St. Louis to Madrid is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from St. Louis to Madrid?
Currently, November is the cheapest month in which you can book a flight from St. Louis to Madrid (average of $633). Flying from St. Louis to Madrid in June is currently the most expensive (average of $1,185). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from St. Louis to Madrid?
Reviews of airlines servicing Madrid
Get insights into the airlines that provide service to Madrid. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Madrid. Reviews last updated April 24, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andAir Canada from St. Louis to Madrid by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.6
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.6
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.6
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.6
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.6
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.6
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Madrid. 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 Madrid?
Book flights to Madrid if you plan to visit one of these locationsGetafe
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Complete your trip
Complete your trip to Madrid by adding a car rental and/or hotel reservation to your travel itinerary.
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Other flights to Madrid
Explore flights to Madrid departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 24, 2026.
St. Louis and Madrid flights
Browse other St. Louis and Madrid flight options. Last updated on April 24, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on April 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from St. Louis to Madrid
Discover the top 7 airlines that operate flights from St. Louis to Madrid. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$482 | Average$796 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$788 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$516 | Average$732 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$568 | Average$786 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$578 | Average$947 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$581 | Average$763 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$659 | Average$937 | FlexibilityNo cancel fee | On-time67% |