$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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Jun 18 — Jun 251
Round-trip
1 adult, Economy
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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 May 19, 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 May 19, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 10/2110:35 am
MAD
- STL
1 stop15h 55m
British Airways
Deal found 5/18![British Airways logo]()
$720
This British Airways deal was found by Cheapflights users on 5/18. 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.
Tue 9/299:35 pm
STL
- MAD
1 stop12h 55m
British Airways
Fri 10/93:55 pm
MAD
- STL
1 stop14h 46m
British Airways
Deal found 5/18![British Airways logo]()
$728
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:51 pm
STL
- MAD
1 stop12h 34m
Iberia
Tue 9/2912:40 pm
MAD
- STL
1 stop14h 06m
Iberia
Deal found 5/19![Iberia logo]()
$733
This American Airlines deal was found by Cheapflights users on 5/18. 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.
Sun 12/1310:47 am
STL
- MAD
1 stop15h 08m
American Airlines
Fri 12/1812:00 pm
MAD
- STL
1 stop14h 31m
American Airlines
Deal found 5/18![American Airlines logo]()
$736
This Orbitz deal was found by Cheapflights users on 5/17. 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.
Mon 10/56:51 pm
STL
- MAD
1 stop12h 34m
Iberia
Mon 10/199:35 pm
MAD
- STL
2 stops28h 55m
Iberia
Deal found 5/17![Iberia logo]()
$754
This Expedia deal was found by Cheapflights users on 5/18. 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.
Sun 9/206:51 pm
STL
- MAD
1 stop12h 34m
Iberia
Wed 9/307:30 am
MAD
- STL
2 stops20h 53m
Iberia
Deal found 5/18![Iberia logo]()
$757
This Air France deal was found by Cheapflights users on 5/18. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:42 pm
STL
- MAD
1 stop13h 33m
Air France
Wed 10/2810:00 am
MAD
- STL
1 stop13h 06m
Air France
Deal found 5/18![Air France logo]()
$764
This KLM deal was found by Cheapflights users on 5/18. 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 10/2111:51 am
STL
- MAD
1 stop17h 24m
KLM
Fri 10/301:05 pm
MAD
- STL
2 stops16h 13m
KLM
Deal found 5/18![KLM logo]()
$766
This Delta deal was found by Cheapflights users on 5/18. 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 10/74:13 pm
STL
- MAD
2 stops16h 22m
Delta
Wed 10/219:50 am
MAD
- STL
1 stop20h 49m
Delta
Deal found 5/18![Delta logo]()
$768
This KAYAK deal was found by Cheapflights users on 5/16. 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.
Sun 12/1311:50 am
STL
- MAD
2 stops17h 05m
British Airways
Fri 12/1812:40 pm
MAD
- STL
1 stop13h 50m
British Airways
Deal found 5/16![British Airways logo]()
$770
This KLM deal was found by Cheapflights users on 5/17. 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 11/226:59 pm
STL
- MAD
1 stop31h 56m
KLM
Fri 11/271:05 pm
MAD
- STL
2 stops17h 13m
KLM
Deal found 5/17![KLM logo]()
$772
This Delta deal was found by Cheapflights users on 5/18. 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 12/134:13 pm
STL
- MAD
2 stops16h 07m
Delta
Fri 12/1810:00 am
MAD
- STL
2 stops20h 18m
Delta
Deal found 5/18![Delta logo]()
$773
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 May 19, 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 May 19, 2026.
This Delta deal was found by Cheapflights users on 5/15. 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 stops19h 39m
Delta
Deal found 5/15![Delta logo]()
$801
This United Airlines deal was found by Cheapflights users on 5/14. 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 8/46:01 am
STL
- MAD
1 stop19h 59m
United Airlines
Thu 8/1312:45 pm
MAD
- STL
1 stop12h 57m
United Airlines
Deal found 5/14![United Airlines logo]()
$881
This United Airlines deal was found by Cheapflights users on 5/14. 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 9/188:30 pm
STL
- MAD
2 stops27h 20m
United Airlines
Mon 10/512:45 pm
MAD
- STL
1 stop12h 56m
United Airlines
Deal found 5/14![United Airlines logo]()
$893
This United Airlines deal was found by Cheapflights users on 5/14. 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 8/46:01 am
STL
- MAD
1 stop19h 59m
United Airlines
Wed 8/1211:15 am
MAD
- STL
2 stops17h 45m
United Airlines
Deal found 5/14![United Airlines logo]()
$893
This United Airlines deal was found by Cheapflights users on 5/15. 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 8/1312:10 pm
STL
- MAD
1 stop11h 40m
United Airlines
Thu 8/2712:45 pm
MAD
- STL
2 stops30h 17m
United Airlines
Deal found 5/15![United Airlines logo]()
$913
This United Airlines deal was found by Cheapflights users on 5/17. 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 9/38:00 am
STL
- MAD
2 stops17h 50m
United Airlines
Fri 9/1112:45 pm
MAD
- STL
2 stops29h 32m
United Airlines
Deal found 5/17![United Airlines logo]()
$932
This United Airlines deal was found by Cheapflights users on 5/14. 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 6/111:05 pm
STL
- MAD
1 stop10h 45m
United Airlines
Thu 6/181:30 pm
MAD
- STL
2 stops29h 41m
United Airlines
Deal found 5/14![United Airlines logo]()
$1,322
This United Airlines deal was found by Cheapflights users on 5/17. 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 6/197:22 am
STL
- MAD
2 stops16h 28m
United Airlines
Wed 7/11:30 pm
MAD
- STL
2 stops31h 53m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,326
This United Airlines deal was found by Cheapflights users on 5/16. 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 6/136:00 am
STL
- MAD
1 stop20h 00m
United Airlines
Sat 6/201:30 pm
MAD
- STL
2 stops29h 41m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,393
Last-minute flights from St. Louis to MadridDiscover last-minute flight deals from St. Louis to Madrid. Data last updated May 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Madrid. Data last updated May 19, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 5/18. 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.
Mon 6/12:15 pm
STL
- MAD
2 stops28h 00m
Multiple Airlines
Thu 6/46:30 am
MAD
- STL
3 stops36h 36m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,219
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/86:00 am
STL
- MAD
1 stop25h 00m
Multiple Airlines
Wed 6/1710:15 am
MAD
- STL
2 stops20h 34m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,239
This Lufthansa deal was found by Cheapflights users on 5/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/141:13 pm
STL
- MAD
2 stops14h 52m
Lufthansa
Sun 6/215:55 am
MAD
- STL
1 stop14h 30m
Lufthansa
Deal found 5/17![Lufthansa logo]()
$1,179
This Mytrip deal was found by Cheapflights users on 5/17. 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.
Sun 6/142:15 pm
STL
- MAD
2 stops28h 00m
Multiple Airlines
Sun 6/2110:55 pm
MAD
- STL
2 stops28h 30m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,212
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/1612:35 pm
STL
- MAD
2 stops38h 00m
Multiple Airlines
Thu 6/253:15 pm
MAD
- STL
1 stop30h 22m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,245
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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.
Wed 6/1712:55 pm
STL
- MAD
2 stops21h 45m
Lufthansa
Wed 7/15:55 am
MAD
- STL
1 stop14h 30m
Lufthansa
Deal found 5/19![Lufthansa logo]()
$1,236
This Gotogate deal was found by Cheapflights users on 5/16. 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 6/221:20 pm
STL
- MAD
1 stop10h 30m
Multiple Airlines
Wed 7/15:55 am
MAD
- STL
1 stop14h 30m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,240
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 May 19, 2026.
Search for one-way flight options from St. Louis to Madrid. Find affordable one-way fares based on user searches. Data last updated May 19, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 8/199:35 pm
STL
- MAD
1 stop15h 30m
British Airways
Deal found 5/18![British Airways logo]()
$330
This oojo deal was found by Cheapflights users on 5/14. 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 8/129:35 pm
STL
- MAD
1 stop30h 40m
British Airways
Deal found 5/14![British Airways logo]()
$332
This Expedia deal was found by Cheapflights users on 5/14. 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.
Wed 8/1210:16 am
STL
- MAD
1 stop15h 49m
Iberia
Deal found 5/14![Iberia logo]()
$341
This Air France deal was found by Cheapflights users on 5/18. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:33 am
STL
- MAD
2 stops12h 47m
Air France
Deal found 5/18![Air France logo]()
$355
This Delta deal was found by Cheapflights users on 5/15. 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 8/1910:33 am
STL
- MAD
2 stops17h 47m
Delta
Deal found 5/15![Delta logo]()
$360
This Air France deal was found by Cheapflights users on 5/14. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:33 am
STL
- MAD
2 stops12h 47m
Air France
Deal found 5/14![Air France logo]()
$371
This United Airlines deal was found by Cheapflights users on 5/14. 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 8/128:00 am
STL
- MAD
2 stops15h 50m
United Airlines
Deal found 5/14![United Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 8/103:30 pm
STL
- MAD
1 stop13h 50m
Lufthansa
Deal found 5/14![Lufthansa logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 7/214:09 pm
STL
- MAD
3 stops49h 21m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 7/204:09 pm
STL
- MAD
3 stops43h 51m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 8/26:33 pm
STL
- MAD
3 stops41h 52m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 7/274:09 pm
STL
- MAD
3 stops50h 41m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$420
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 May 19, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $720 (Cheapflightsfares) |
One-way from | $330 (Cheapflightsfares) |
Popular in | June |
Cheapest in | February |
Average price | $1,035 |
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 May 19, 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
1:30 pm-9:55 am
2 stops13h 25m
Madrid Barajas
Fri 10/30
10:00 am-11:39 pm
2 stops19h 39m
$801
Quickest round-trip
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Tue 8/4
6:01 am-9:00 am
1 stop19h 59m
Madrid Barajas
Thu 8/13
12:45 pm-6:42 pm
1 stop12h 57m
$881
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Fri 9/18
8:30 pm-6:50 am
2 stops27h 20m
Madrid Barajas
Mon 10/5
12:45 pm-6:41 pm
1 stop12h 56m
$893
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Tue 8/4
6:01 am-9:00 am
1 stop19h 59m
Madrid Barajas
Wed 8/12
11:15 am-10:00 pm
2 stops17h 45m
$893
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Thu 8/13
12:10 pm-6:50 am
1 stop11h 40m
Madrid Barajas
Thu 8/27
12:45 pm-12:02 pm
2 stops30h 17m
$913
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Thu 9/3
8:00 am-8:50 am
2 stops17h 50m
Madrid Barajas
Fri 9/11
12:45 pm-11:17 am
2 stops29h 32m
$932
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Thu 6/11
1:05 pm-6:50 am
1 stop10h 45m
Madrid Barajas
Thu 6/18
1:30 pm-12:11 pm
2 stops29h 41m
$1,322
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Fri 6/19
7:22 am-6:50 am
2 stops16h 28m
Madrid Barajas
Wed 7/1
1:30 pm-2:23 pm
2 stops31h 53m
$1,326
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Sat 6/13
6:00 am-9:00 am
1 stop20h 00m
Madrid Barajas
Sat 6/20
1:30 pm-12:11 pm
2 stops29h 41m
$1,393
Cheapest one-way
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Wed 8/12
7:00 am-6:50 am
3 stops16h 50m
$375
Showing 1-10 of 19 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 May.
| 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 May 19, 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.
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
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 May 19, 2026.
St. Louis and Madrid flights
Browse other St. Louis and Madrid flight options. Last updated on May 19, 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 May 19, 2026.
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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 May 19, 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$568 | Average$786 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$578 | Average$981 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$582 | Average$774 | FlexibilityNo cancel fee | On-time71% |