$391+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Jul 3 — Jul 101
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Madrid with Cheapflights
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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 June 3, 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 June 3, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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 10/79:35 pm
STL
- MAD
1 stop15h 30m
British Airways
Wed 10/2112:10 pm
MAD
- STL
1 stop14h 20m
British Airways
Deal found 6/2![British Airways logo]()
$720
This oojo deal was found by Cheapflights users on 5/30. 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.
Mon 9/281:54 pm
STL
- MAD
1 stop12h 41m
British Airways
Fri 10/93:25 pm
MAD
- STL
1 stop15h 16m
British Airways
Deal found 5/30![British Airways logo]()
$727
This British Airways deal was found by Cheapflights users on 6/2. 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 10/219:35 pm
STL
- MAD
1 stop15h 30m
British Airways
Fri 10/301:15 pm
MAD
- STL
1 stop16h 26m
British Airways
Deal found 6/2![British Airways logo]()
$728
This British Airways deal was found by Cheapflights users on 6/1. 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.
Sat 12/126:53 pm
STL
- MAD
1 stop27h 52m
British Airways
Thu 12/1712:40 pm
MAD
- STL
1 stop13h 50m
British Airways
Deal found 6/1![British Airways logo]()
$741
This Air Canada deal was found by Cheapflights users on 6/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 pm
STL
- MAD
1 stop11h 40m
Air Canada
Fri 10/212:45 pm
MAD
- STL
2 stops33h 58m
Air Canada
Deal found 6/1![Air Canada logo]()
$742
This United Airlines deal was found by Cheapflights users on 6/1. 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 9/205:30 pm
STL
- MAD
2 stops32h 20m
United Airlines
Fri 10/212:45 pm
MAD
- STL
2 stops39h 39m
United Airlines
Deal found 6/1![United Airlines logo]()
$747
This FlightHub deal was found by Cheapflights users on 6/2. 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.
Wed 10/72:40 pm
STL
- MAD
1 stop11h 55m
Air Canada
Wed 10/2112:45 pm
MAD
- STL
2 stops33h 58m
Air Canada
Deal found 6/2![Air Canada logo]()
$748
This United Airlines deal was found by Cheapflights users on 6/1. 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 9/204:50 pm
STL
- MAD
1 stop33h 10m
United Airlines
Thu 10/11:30 pm
MAD
- STL
1 stop31h 30m
United Airlines
Deal found 6/1![United Airlines logo]()
$750
This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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.
Mon 9/287:01 pm
STL
- MAD
2 stops20h 29m
Lufthansa
Fri 10/96:00 am
MAD
- STL
1 stop14h 25m
Lufthansa
Deal found 6/2![Lufthansa logo]()
$752
This United Airlines deal was found by Cheapflights users on 6/2. 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 10/1812:10 pm
STL
- MAD
1 stop11h 40m
United Airlines
Fri 10/306:00 am
MAD
- STL
1 stop14h 45m
United Airlines
Deal found 6/2![United Airlines logo]()
$753
This United Airlines deal was found by Cheapflights users on 6/2. 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 10/198:25 am
STL
- MAD
1 stop16h 40m
United Airlines
Fri 10/306:00 am
MAD
- STL
1 stop14h 45m
United Airlines
Deal found 6/2![United Airlines logo]()
$754
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 June 3, 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 June 3, 2026.
This United Airlines deal was found by Cheapflights users on 6/3. 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 10/216:00 am
STL
- MAD
2 stops19h 05m
United Airlines
Fri 10/306:00 am
MAD
- STL
1 stop14h 45m
United Airlines
Deal found 6/3![United Airlines logo]()
$758
This British Airways deal was found by Cheapflights users on 6/1. 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 10/81:00 pm
STL
- MAD
1 stop13h 35m
British Airways
Sun 10/1812:20 pm
MAD
- STL
1 stop14h 10m
British Airways
Deal found 6/1![British Airways logo]()
$838
This United Airlines deal was found by Cheapflights users on 5/29. 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.
Sat 10/177:30 am
STL
- MAD
3 stops40h 20m
United Airlines
Sat 10/3111:15 am
MAD
- STL
1 stop18h 10m
United Airlines
Deal found 5/29![United Airlines logo]()
$817
This United Airlines deal was found by Cheapflights users on 6/2. 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 9/147:00 am
STL
- MAD
1 stop19h 00m
United Airlines
Tue 10/61:30 pm
MAD
- STL
2 stops31h 41m
United Airlines
Deal found 6/2![United Airlines logo]()
$845
This United Airlines deal was found by Cheapflights users on 6/1. 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 9/76:00 am
STL
- MAD
2 stops19h 05m
United Airlines
Tue 9/151:30 pm
MAD
- STL
2 stops29h 27m
United Airlines
Deal found 6/1![United Airlines logo]()
$849
This United Airlines deal was found by Cheapflights users on 5/31. 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 9/178:00 am
STL
- MAD
2 stops15h 50m
United Airlines
Sun 9/205:55 am
MAD
- STL
2 stops19h 46m
United Airlines
Deal found 5/31![United Airlines logo]()
$860
This United Airlines deal was found by Cheapflights users on 5/31. 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 8/168:00 am
STL
- MAD
2 stops15h 50m
United Airlines
Wed 8/261:30 pm
MAD
- STL
2 stops29h 32m
United Airlines
Deal found 5/31![United Airlines logo]()
$872
This United Airlines deal was found by Cheapflights users on 5/29. 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 9/108:00 am
STL
- MAD
2 stops15h 50m
United Airlines
Tue 9/221:30 pm
MAD
- STL
2 stops33h 08m
United Airlines
Deal found 5/29![United Airlines logo]()
$908
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Fri 7/3112:10 pm
STL
- MAD
1 stop11h 40m
United Airlines
Wed 8/51:30 pm
MAD
- STL
2 stops29h 41m
United Airlines
Deal found 6/2![United Airlines logo]()
$922
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Fri 9/45:30 pm
STL
- MAD
2 stops31h 35m
United Airlines
Sun 9/1312:45 pm
MAD
- STL
2 stops41h 53m
United Airlines
Deal found 6/3![United Airlines logo]()
$967
Last-minute flights from St. Louis to MadridDiscover last-minute flight deals from St. Louis to Madrid. Data last updated June 3, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Madrid. Data last updated June 3, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 6/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/512:10 pm
STL
- MAD
1 stop11h 40m
Air Canada
Wed 7/156:20 am
MAD
- STL
2 stops19h 22m
Air Canada
Deal found 6/1![Air Canada logo]()
$969
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/66:01 am
STL
- MAD
1 stop19h 59m
United Airlines
Tue 7/2112:45 pm
MAD
- STL
2 stops41h 59m
United Airlines
Deal found 6/2![United Airlines logo]()
$956
This United Airlines deal was found by Cheapflights users on 5/31. 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 7/77:05 pm
STL
- MAD
2 stops28h 45m
United Airlines
Tue 7/1412:45 pm
MAD
- STL
2 stops30h 26m
United Airlines
Deal found 5/31![United Airlines logo]()
$959
This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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 7/73:30 pm
STL
- MAD
1 stop21h 20m
Lufthansa
Tue 7/145:55 am
MAD
- STL
1 stop14h 30m
Lufthansa
Deal found 6/2![Lufthansa logo]()
$966
This Gotogate deal was found by Cheapflights users on 6/1. 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 7/212:40 pm
STL
- MAD
1 stop11h 10m
Multiple Airlines
Tue 7/285:55 am
MAD
- STL
2 stops19h 47m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$951
This KAYAK deal was found by Cheapflights users on 6/1. 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.
Tue 7/218:43 am
STL
- MAD
1 stop16h 22m
Lufthansa
Fri 7/316:00 am
MAD
- STL
2 stops19h 42m
Lufthansa
Deal found 6/1![Lufthansa logo]()
$971
This Gotogate deal was found by Cheapflights users on 6/2. 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.
Fri 7/3112:10 pm
STL
- MAD
1 stop11h 40m
Multiple Airlines
Wed 8/51:30 pm
MAD
- STL
1 stop31h 32m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$920
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Fri 7/3112:10 pm
STL
- MAD
1 stop11h 40m
United Airlines
Wed 8/51:30 pm
MAD
- STL
2 stops29h 41m
United Airlines
Deal found 6/2![United Airlines logo]()
$922
This Mytrip deal was found by Cheapflights users on 6/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:55 am
STL
- MAD
2 stops14h 55m
Air Canada
Wed 8/51:30 pm
MAD
- STL
2 stops29h 41m
Air Canada
Deal found 6/2![Air Canada logo]()
$930
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 June 3, 2026.
Search for one-way flight options from St. Louis to Madrid. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
This Orbitz deal was found by Cheapflights users on 5/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:01 am
STL
- MAD
1 stop14h 19m
Iberia
Deal found 5/30![Iberia logo]()
$391
This United Airlines deal was found by Cheapflights users on 5/30. 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.
Fri 9/188:55 am
STL
- MAD
1 stop16h 55m
United Airlines
Deal found 5/30![United Airlines logo]()
$409
This KAYAK deal was found by Cheapflights users on 5/30. 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.
Fri 9/187:21 am
STL
- MAD
2 stops23h 54m
British Airways
Deal found 5/30![British Airways logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 5/29. 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 8/24:09 pm
STL
- MAD
3 stops50h 06m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 6/2. 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.
Mon 7/68:08 pm
STL
- MAD
3 stops54h 22m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$454
This oojo deal was found by Cheapflights users on 6/2. 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.
Mon 7/65:58 pm
STL
- MAD
1 stop12h 32m
British Airways
Deal found 6/2![British Airways logo]()
$457
This deal was found by Cheapflights users on 5/29. 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.
Sun 8/212:10 pm
STL
- MAD
1 stop11h 40m
Air Canada
Deal found 5/29![Air Canada logo]()
$462
This United Airlines deal was found by Cheapflights users on 5/31. 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.
Sat 8/155:30 pm
STL
- MAD
2 stops32h 20m
United Airlines
Deal found 5/31![United Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 8/62:10 pm
STL
- MAD
2 stops36h 25m
WestJet
Deal found 5/31![WestJet logo]()
$475
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 June 3, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $720 (Cheapflightsfares) |
One-way from | $391 (Orbitz) |
Popular in | June |
Cheapest in | February |
Average price | $1,186 |
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 June 3, 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
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Wed 10/21
6:00 am-8:05 am
2 stops19h 05m
Madrid Barajas
Fri 10/30
6:00 am-2:45 pm
1 stop14h 45m
$758
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Sat 10/17
7:30 am-6:50 am
3 stops40h 20m
Madrid Barajas
Sat 10/31
11:15 am-11:25 pm
1 stop18h 10m
$817
Quickest round-trip
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Thu 10/8
1:00 pm-9:35 am
1 stop13h 35m
Madrid Barajas
Sun 10/18
12:20 pm-7:30 pm
1 stop14h 10m
$838
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 9/14
7:00 am-9:00 am
1 stop19h 00m
Madrid Barajas
Tue 10/6
1:30 pm-2:11 pm
2 stops31h 41m
$845
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 9/7
6:00 am-8:05 am
2 stops19h 05m
Madrid Barajas
Tue 9/15
1:30 pm-11:57 am
2 stops29h 27m
$849
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Thu 9/17
8:00 am-6:50 am
2 stops15h 50m
Madrid Barajas
Sun 9/20
5:55 am-6:41 pm
2 stops19h 46m
$860
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Sun 8/16
8:00 am-6:50 am
2 stops15h 50m
Madrid Barajas
Wed 8/26
1:30 pm-12:02 pm
2 stops29h 32m
$872
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Thu 9/10
8:00 am-6:50 am
2 stops15h 50m
Madrid Barajas
Tue 9/22
1:30 pm-3:38 pm
2 stops33h 08m
$908
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Fri 7/31
12:10 pm-6:50 am
1 stop11h 40m
Madrid Barajas
Wed 8/5
1:30 pm-12:11 pm
2 stops29h 41m
$922
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Fri 9/4
5:30 pm-8:05 am
2 stops31h 35m
Madrid Barajas
Sun 9/13
12:45 pm-11:38 pm
2 stops41h 53m
$967
Showing 1-10 of 18 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Madrid flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on St. Louis-Madrid flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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, February is the cheapest month in which you can book a flight from St. Louis to Madrid (average of $636). Flying from St. Louis to Madrid in June is currently the most expensive (average of $1,186). 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 June 3, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines 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.
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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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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 June 3, 2026.
St. Louis and Madrid flights
Browse other St. Louis and Madrid flight options. Last updated on June 3, 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 June 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from St. Louis to Madrid
Discover the top 6 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 June 3, 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$737 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$523 | Average$779 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$578 | Average$981 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$582 | Average$772 | FlexibilityNo cancel fee | On-time71% |