$331+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Sep 12 — Sep 191
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
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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 August 13, 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 August 13, 2026.
This Ticket deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:40 pm -
1 stop11h 10m
Tue 10/61:30 pm -
1 stop13h 30m
Deal found 8/10![Air Canada logo]()
$658
This Gotogate deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/272:40 pm -
1 stop11h 10m
Tue 10/131:30 pm -
1 stop13h 30m
Deal found 8/11![Multiple Airlines logo]()
$690
This Sembo deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:53 pm -
2 stops28h 57m
Tue 10/65:55 am -
2 stops22h 26m
Deal found 8/10![Multiple Airlines logo]()
$691
This Gotogate deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:10 pm -
1 stop11h 40m
Tue 10/136:20 am -
2 stops20h 40m
Deal found 8/11![Air Canada logo]()
$704
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:10 pm -
1 stop11h 40m
Fri 10/912:45 pm -
2 stops33h 58m
Deal found 8/10![United Airlines logo]()
$709
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/288:30 am -
1 stop16h 35m
Fri 10/912:45 pm -
2 stops33h 58m
Deal found 8/12![United Airlines logo]()
$710
This Gotogate deal was found by Cheapflights users on 8/12. 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.
Sat 10/32:40 pm -
2 stops33h 10m
Tue 10/135:55 am -
1 stop14h 30m
Deal found 8/12![Multiple Airlines logo]()
$713
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/286:50 pm -
2 stops31h 25m
Wed 1/131:25 pm -
2 stops33h 16m
Deal found 8/11![United Airlines logo]()
$715
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 August 13, 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 August 13, 2026.
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/276:30 am -
2 stops18h 30m
Thu 2/181:25 pm -
2 stops35h 41m
Deal found 8/10![United Airlines logo]()
$709
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:28 pm -
2 stops16h 42m
Sun 10/256:05 am -
2 stops23h 49m
Deal found 8/11![Delta logo]()
$791
This British Airways deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:46 pm -
1 stop13h 19m
Mon 11/21:00 pm -
1 stop15h 57m
Deal found 8/9![British Airways logo]()
$821
This United deal was found by Cheapflights users on 8/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:30 am -
1 stop19h 45m
Sun 1/176:05 am -
1 stop14h 40m
Deal found 8/12![Multiple Airlines logo]()
$821
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:10 pm -
1 stop11h 40m
Wed 10/1412:45 pm -
2 stops30h 28m
Deal found 8/8![United Airlines logo]()
$709
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/218:55 am -
1 stop17h 40m
Fri 10/306:05 am -
1 stop14h 40m
Deal found 8/13![United Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 8/12. 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 12/156:00 am -
2 stops19h 00m
Fri 12/2511:15 am -
1 stop18h 45m
Deal found 8/12![United Airlines logo]()
$764
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:00 pm -
1 stop11h 45m
Fri 11/206:05 am -
1 stop14h 40m
Deal found 8/8![United Airlines logo]()
$770
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:00 am -
2 stops17h 50m
Thu 10/16:05 am -
2 stops20h 55m
Deal found 8/10![United Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:27 am -
2 stops14h 38m
Mon 11/211:00 am -
2 stops18h 24m
Deal found 8/8![United Airlines logo]()
$825
Last-minute flights from St. Louis to MadridDiscover last-minute flight deals from St. Louis to Madrid. Data last updated August 13, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Madrid. Data last updated August 13, 2026 and is based on user searches.
This Ticket deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:40 pm -
1 stop11h 10m
Tue 10/61:30 pm -
1 stop13h 30m
Deal found 8/10![Air Canada logo]()
$658
This Sembo deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:53 pm -
2 stops28h 57m
Tue 10/65:55 am -
2 stops22h 26m
Deal found 8/10![Multiple Airlines logo]()
$691
This Gotogate deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/272:40 pm -
1 stop11h 10m
Tue 10/131:30 pm -
1 stop13h 30m
Deal found 8/11![Multiple Airlines logo]()
$690
This Gotogate deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:10 pm -
1 stop11h 40m
Tue 10/136:20 am -
2 stops20h 40m
Deal found 8/11![Air Canada logo]()
$704
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/288:30 am -
1 stop16h 35m
Fri 10/912:45 pm -
2 stops33h 58m
Deal found 8/12![United Airlines logo]()
$710
This FlightHub deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:40 pm -
2 stops33h 10m
Fri 10/912:45 pm -
2 stops33h 58m
Deal found 8/9![Air Canada logo]()
$717
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:10 pm -
1 stop11h 40m
Fri 10/912:45 pm -
2 stops33h 58m
Deal found 8/10![United Airlines logo]()
$709
This United deal was found by Cheapflights users on 8/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:50 pm -
1 stop33h 10m
Wed 10/71:30 pm -
1 stop31h 30m
Deal found 8/12![Multiple Airlines logo]()
$716
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 August 13, 2026.
Search for one-way flight options from St. Louis to Madrid. Find affordable one-way fares based on user searches. Data last updated August 13, 2026.
This Expedia deal was found by Cheapflights users on 8/12. 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.
Mon 1/119:33 am -
1 stop16h 22m
Deal found 8/12![British Airways logo]()
$331
This Priceline deal was found by Cheapflights users on 8/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/112:54 pm -
2 stops16h 21m
Deal found 8/12![Iberia logo]()
$338
This United Airlines deal was found by Cheapflights users on 8/12. 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 1/111:08 pm -
3 stops37h 07m
Deal found 8/12![United Airlines logo]()
$363
This Ovago deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:33 am -
2 stops16h 02m
Deal found 8/10![WestJet logo]()
$748
This BusinessClass deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:25 pm -
2 stops22h 45m
Deal found 8/10![TAP AIR PORTUGAL logo]()
$795
This Thrive Travel deal was found by Cheapflights users on 8/12. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:25 pm -
2 stops13h 10m
Deal found 8/12![British Airways logo]()
$800
This FlightHub deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:35 pm -
1 stop15h 30m
Deal found 8/10![Multiple Airlines logo]()
$819
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 August 13, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $658 (Ticket) |
One-way from | $331 (Expedia) |
Popular in | June |
Cheapest in | February |
Average price | $823 |
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 August 13, 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 Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Wed 1/27
6:30 am-8:00 am
2 stops18h 30m
Madrid Barajas
Thu 2/18
1:25 pm-6:06 pm
2 stops35h 41m
$709
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Sun 10/4
12:10 pm-6:50 am
1 stop11h 40m
Madrid Barajas
Wed 10/14
12:45 pm-12:13 pm
2 stops30h 28m
$709
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Wed 10/21
8:55 am-9:35 am
1 stop17h 40m
Madrid Barajas
Fri 10/30
6:05 am-2:45 pm
1 stop14h 40m
$724
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Tue 12/15
6:00 am-8:00 am
2 stops19h 00m
Madrid Barajas
Fri 12/25
11:15 am-11:00 pm
1 stop18h 45m
$764
Quickest round-trip
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Thu 11/12
1:00 pm-7:45 am
1 stop11h 45m
Madrid Barajas
Fri 11/20
6:05 am-1:45 pm
1 stop14h 40m
$770
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Thu 9/24
6:00 am-6:50 am
2 stops17h 50m
Madrid Barajas
Thu 10/1
6:05 am-8:00 pm
2 stops20h 55m
$782
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Wed 10/21
12:28 pm-12:10 pm
2 stops16h 42m
Madrid Barajas
Sun 10/25
6:05 am-11:54 pm
2 stops23h 49m
$791
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Mon 10/19
12:46 pm-9:05 am
1 stop13h 19m
Madrid Barajas
Mon 11/2
1:00 pm-9:57 pm
1 stop15h 57m
$821
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Thu 12/10
6:30 am-9:15 am
1 stop19h 45m
Madrid Barajas
Sun 1/17
6:05 am-1:45 pm
1 stop14h 40m
$821
St. LouisMadrid
STL Lambert-St Louis - MAD Madrid Barajas
STLMAD
Lambert-St Louis
Mon 10/19
10:27 am-8:05 am
2 stops14h 38m
Madrid Barajas
Mon 11/2
11:00 am-10:24 pm
2 stops18h 24m
$825
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 August.
| 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 |
- 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 35 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 $673). Flying from St. Louis to Madrid in June is currently the most expensive (average of $1,465). 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?
Airfare is below average for this route at the moment.
St. Louis to Madrid flights typically cost between $747 and $1,040 in September.The cheapest round-trip price found within the last 5 days was $658 on Air Canada (Sep 21-Oct 6).
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 August 13, 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.
Overall
7.8
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
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 August 13, 2026.
St. Louis and Madrid flights
Browse other St. Louis and Madrid flight options. Last updated on August 13, 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 August 13, 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 August 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$482 | Average$830 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$788 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$516 | Average$747 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$523 | Average$835 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$581 | Average$789 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$586 | Average$1,156 | FlexibilityNo cancel fee | On-time69% |