$327+ 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 23 — Jun 301
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
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 St. Louis to Madrid
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Best
Last-minute
One-way
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 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 May 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:35 pm
STL
- MAD
1 stop15h 30m
British Airways
Wed 10/1410:35 am
MAD
- STL
1 stop15h 55m
British Airways
Deal found 5/22![British Airways logo]()
$720
This British Airways deal was found by Cheapflights users on 5/20. 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 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 5/20![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 9/291:35 pm
MAD
- STL
1 stop13h 28m
Iberia
Deal found 5/19![Iberia logo]()
$732
This oojo deal was found by Cheapflights users on 5/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:45 pm
STL
- MAD
1 stop28h 00m
British Airways
Fri 11/271:15 pm
MAD
- STL
1 stop14h 40m
British Airways
Deal found 5/23![British Airways logo]()
$733
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:05 pm
STL
- MAD
1 stop10h 25m
British Airways
Wed 10/2112:40 pm
MAD
- STL
1 stop13h 22m
British Airways
Deal found 5/19![British Airways logo]()
$736
This Air Canada deal was found by Cheapflights users on 5/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:10 pm
STL
- MAD
1 stop11h 40m
Air Canada
Thu 12/241:35 pm
MAD
- STL
2 stops33h 03m
Air Canada
Deal found 5/21![Air Canada logo]()
$742
This United Airlines deal was found by Cheapflights users on 5/20. 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 10/77:30 am
STL
- MAD
1 stop18h 30m
United Airlines
Wed 10/2112:45 pm
MAD
- STL
2 stops32h 26m
United Airlines
Deal found 5/20![United Airlines logo]()
$744
This Gotogate deal was found by Cheapflights users on 5/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:55 am
STL
- MAD
2 stops14h 55m
Multiple Airlines
Wed 10/145:55 am
MAD
- STL
1 stop14h 30m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$746
This Air Canada deal was found by Cheapflights users on 5/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:00 am
STL
- MAD
2 stops15h 50m
Air Canada
Fri 12/251:35 pm
MAD
- STL
2 stops36h 50m
Air Canada
Deal found 5/21![Air Canada logo]()
$747
This FlightHub deal was found by Cheapflights users on 5/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:22 am
STL
- MAD
1 stop12h 08m
British Airways
Tue 12/2212:40 pm
MAD
- STL
1 stop13h 50m
British Airways
Deal found 5/21![British Airways logo]()
$751
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/232:40 pm
STL
- MAD
1 stop12h 10m
Air Canada
Tue 9/291:30 pm
MAD
- STL
2 stops29h 43m
Air Canada
Deal found 5/19![Air Canada logo]()
$752
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 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 May 24, 2026.
This British Airways 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 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 10/3011:00 am
MAD
- STL
1 stop18h 31m
British Airways
Deal found 5/19![British Airways logo]()
$728
This United Airlines deal was found by Cheapflights users on 5/22. 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 10/77:30 am
STL
- MAD
1 stop18h 30m
United Airlines
Wed 10/2112:45 pm
MAD
- STL
2 stops32h 26m
United Airlines
Deal found 5/22![United Airlines logo]()
$744
This KLM deal was found by Cheapflights users on 5/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:30 pm
STL
- MAD
2 stops13h 25m
Multiple Airlines
Mon 10/196:00 am
MAD
- STL
2 stops16h 58m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$827
This KLM deal was found by Cheapflights users on 5/23. 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.
Thu 11/1211:51 am
STL
- MAD
2 stops13h 09m
KLM
Mon 11/1610:00 am
MAD
- STL
2 stops17h 49m
KLM
Deal found 5/23![KLM logo]()
$855
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Mon 10/51:00 pm
STL
- MAD
1 stop12h 05m
United Airlines
Mon 10/191:25 pm
MAD
- STL
1 stop31h 00m
United Airlines
Deal found 5/20![United Airlines logo]()
$774
This United Airlines deal was found by Cheapflights users on 5/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1612:10 pm
STL
- MAD
1 stop11h 40m
United Airlines
Thu 12/2411:15 am
MAD
- STL
1 stop15h 25m
United Airlines
Deal found 5/21![United Airlines logo]()
$795
This FlightHub deal was found by Cheapflights users on 5/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:10 pm
STL
- MAD
1 stop11h 40m
Multiple Airlines
Mon 8/1012:45 pm
MAD
- STL
1 stop12h 57m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$950
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Mon 8/36:00 am
STL
- MAD
2 stops17h 50m
United Airlines
Mon 8/1012:45 pm
MAD
- STL
2 stops33h 53m
United Airlines
Deal found 5/23![United Airlines logo]()
$941
This United Airlines deal was found by Cheapflights users on 5/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1612:10 pm
STL
- MAD
1 stop11h 40m
United Airlines
Mon 7/2012:45 pm
MAD
- STL
1 stop12h 57m
United Airlines
Deal found 5/21![United Airlines logo]()
$1,098
This United Airlines deal was found by Cheapflights users on 5/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/123:30 pm
STL
- MAD
1 stop13h 50m
United Airlines
Mon 7/131:25 pm
MAD
- STL
1 stop31h 00m
United Airlines
Deal found 5/21![United Airlines logo]()
$1,507
Last-minute flights from St. Louis to MadridDiscover last-minute flight deals from St. Louis to Madrid. Data last updated May 24, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Madrid. Data last updated May 24, 2026 and is based on user searches.
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:40 am
STL
- MAD
2 stops18h 15m
Multiple Airlines
Wed 6/177:30 am
MAD
- STL
2 stops35h 51m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,231
This Mytrip deal was found by Cheapflights users on 5/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:40 am
STL
- MAD
3 stops27h 20m
Multiple Airlines
Wed 6/176:25 am
MAD
- STL
3 stops36h 56m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,102
This Expedia deal was found by Cheapflights users on 5/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:40 am
STL
- MAD
2 stops18h 15m
Multiple Airlines
Tue 6/1610:40 am
MAD
- STL
2 stops32h 26m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,133
This Mytrip deal was found by Cheapflights users on 5/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/141:05 pm
STL
- MAD
2 stops18h 05m
Multiple Airlines
Thu 6/1812:45 pm
MAD
- STL
1 stop14h 40m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,149
This Kiwi.com deal was found by Cheapflights users on 5/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:30 am
STL
- MAD
2 stops44h 05m
Multiple Airlines
Wed 7/82:30 pm
MAD
- STL
1 stop30h 53m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,208
This Kiwi.com deal was found by Cheapflights users on 5/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/216:30 am
STL
- MAD
1 stop21h 50m
Multiple Airlines
Tue 7/710:55 am
MAD
- STL
2 stops16h 42m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,234
This Cheapflightsfares deal was found by Cheapflights users on 5/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/221:13 pm
STL
- MAD
2 stops14h 52m
Lufthansa
Wed 7/15:55 am
MAD
- STL
1 stop14h 30m
Lufthansa
Deal found 5/23![Lufthansa logo]()
$1,236
This Kiwi.com deal was found by Cheapflights users on 5/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:30 am
STL
- MAD
1 stop22h 40m
Multiple Airlines
Tue 7/710:55 am
MAD
- STL
2 stops16h 42m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,195
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 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 May 24, 2026.
This oojo deal was found by Cheapflights users on 5/21. 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 oojo 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 5/21![British Airways logo]()
$327
This United Airlines deal was found by Cheapflights users on 5/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:00 am
STL
- MAD
2 stops17h 05m
United Airlines
Deal found 5/21![United Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 8/26:33 pm
STL
- MAD
3 stops44h 52m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 5/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:59 pm
STL
- MAD
2 stops36h 36m
WestJet
Deal found 5/21![WestJet logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 5/23. 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.
Sun 7/266:30 am
STL
- MAD
3 stops35h 45m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 5/23. 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.
Sun 7/266:30 am
STL
- MAD
2 stops44h 05m
WestJet
Deal found 5/23![WestJet logo]()
$429
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 24, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $720 (Cheapflightsfares) |
One-way from | $327 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $1,069 |
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 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
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Wed 10/21
9:35 pm-8:05 pm
1 stop15h 30m
Madrid Barajas
Fri 10/30
11:00 am-11:31 pm
1 stop18h 31m
$728
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Wed 10/7
7:30 am-9:00 am
1 stop18h 30m
Madrid Barajas
Wed 10/21
12:45 pm-2:11 pm
2 stops32h 26m
$744
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 10/5
1:00 pm-8:05 am
1 stop12h 05m
Madrid Barajas
Mon 10/19
1:25 pm-1:25 pm
1 stop31h 00m
$774
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Sun 8/16
12:10 pm-6:50 am
1 stop11h 40m
Madrid Barajas
Thu 12/24
11:15 am-7:40 pm
1 stop15h 25m
$795
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 10/5
1:30 pm-9:55 am
2 stops13h 25m
Madrid Barajas
Mon 10/19
6:00 am-3:58 pm
2 stops16h 58m
$827
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Thu 11/12
11:51 am-8:00 am
2 stops13h 09m
Madrid Barajas
Mon 11/16
10:00 am-8:49 pm
2 stops17h 49m
$855
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 8/3
6:00 am-6:50 am
2 stops17h 50m
Madrid Barajas
Mon 8/10
12:45 pm-3:38 pm
2 stops33h 53m
$941
Quickest round-trip
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Mon 8/3
12:10 pm-6:50 am
1 stop11h 40m
Madrid Barajas
Mon 8/10
12:45 pm-6:42 pm
1 stop12h 57m
$950
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Thu 7/16
12:10 pm-6:50 am
1 stop11h 40m
Madrid Barajas
Mon 7/20
12:45 pm-6:42 pm
1 stop12h 57m
$1,098
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
Fri 6/12
3:30 pm-12:20 pm
1 stop13h 50m
Madrid Barajas
Mon 7/13
1:25 pm-1:25 pm
1 stop31h 00m
$1,507
Showing 1-10 of 17 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 24, 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.
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
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Top 6 airlines flying from St. Louis to Madrid
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| 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% |