$322+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
mar. 24 — mar. 311
1 adult, Economy
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Find cheap flights from St. Louis to Madrid with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from St. Louis to MadridExplore the most affordable flight options available from St. Louis to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 22, 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 febrero 22, 2026.
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/126:10 am
STL
- MAD
1 stop20h 45m
Delta
mar. 4/282:35 pm
MAD
- STL
1 stop25h 52m
Delta
Deal found 2/19![Delta logo]()
$481
This oojo deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/221:29 pm
STL
- MAD
1 stop13h 06m
British Airways
mié. 4/291:35 pm
MAD
- STL
1 stop17h 11m
British Airways
Deal found 2/19![British Airways logo]()
$486
This oojo deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/214:30 pm
STL
- MAD
1 stop14h 00m
British Airways
mar. 4/289:00 pm
MAD
- STL
1 stop29h 30m
British Airways
Deal found 2/19![British Airways logo]()
$489
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/216:30 am
STL
- MAD
2 stops17h 20m
United Airlines
mar. 4/288:25 am
MAD
- STL
2 stops19h 43m
United Airlines
Deal found 2/19![United Airlines logo]()
$495
This United Airlines deal was found by Cheapflights users on 2/22. 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.
mar. 9/228:55 am
STL
- MAD
1 stop16h 55m
United Airlines
vie. 10/212:45 pm
MAD
- STL
2 stops34h 41m
United Airlines
Deal found 2/22![United Airlines logo]()
$500
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/214:30 pm
STL
- MAD
1 stop14h 00m
Multiple Airlines
mar. 4/2811:45 am
MAD
- STL
1 stop14h 48m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$501
This Air Canada deal was found by Cheapflights users on 2/21. 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.
mar. 9/228:55 am
STL
- MAD
1 stop16h 55m
Air Canada
vie. 10/21:30 pm
MAD
- STL
2 stops33h 56m
Air Canada
Deal found 2/21![Air Canada logo]()
$505
This Air Canada deal was found by Cheapflights users on 2/21. 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.
lun. 9/2112:10 pm
STL
- MAD
2 stops37h 40m
Air Canada
vie. 10/21:30 pm
MAD
- STL
2 stops33h 56m
Air Canada
Deal found 2/21![Air Canada logo]()
$508
This United Airlines deal was found by Cheapflights users on 2/22. 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.
mar. 9/299:23 am
STL
- MAD
2 stops16h 27m
United Airlines
vie. 10/91:30 pm
MAD
- STL
2 stops33h 56m
United Airlines
Deal found 2/22![United Airlines logo]()
$509
This Air Canada deal was found by Cheapflights users on 2/21. 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.
sáb. 9/196:49 pm
STL
- MAD
2 stops29h 01m
Air Canada
vie. 10/21:30 pm
MAD
- STL
2 stops31h 48m
Air Canada
Deal found 2/21![Air Canada logo]()
$510
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 febrero 22, 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 febrero 22, 2026.
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/126:30 am
STL
- MAD
2 stops18h 35m
United Airlines
mar. 4/2810:50 am
MAD
- STL
2 stops28h 35m
United Airlines
Deal found 2/19![United Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/129:42 am
STL
- MAD
1 stop17h 13m
Delta
mar. 4/282:35 pm
MAD
- STL
1 stop25h 52m
Delta
Deal found 2/19![Delta logo]()
$482
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/2211:15 am
STL
- MAD
2 stops13h 50m
United Airlines
mié. 4/2911:15 am
MAD
- STL
2 stops16h 53m
United Airlines
Deal found 2/19![United Airlines logo]()
$572
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/2412:04 pm
STL
- MAD
2 stops16h 11m
Delta
mar. 3/316:00 am
MAD
- STL
2 stops21h 42m
Delta
Deal found 2/21![Delta logo]()
$632
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/239:10 am
STL
- MAD
2 stops15h 55m
United Airlines
jue. 5/712:45 pm
MAD
- STL
1 stop14h 20m
United Airlines
Deal found 2/19![United Airlines logo]()
$670
This Delta deal was found by Cheapflights users on 2/18. 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.
sáb. 5/27:25 am
STL
- MAD
2 stops19h 30m
Delta
lun. 5/1110:25 am
MAD
- STL
2 stops19h 56m
Delta
Deal found 2/18![Delta logo]()
$739
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/47:41 am
STL
- MAD
2 stops17h 19m
United Airlines
dom. 3/85:55 am
MAD
- STL
1 stop15h 00m
United Airlines
Deal found 2/19![United Airlines logo]()
$706
This United Airlines deal was found by Cheapflights users on 2/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/257:41 am
STL
- MAD
2 stops18h 34m
United Airlines
dom. 3/15:55 am
MAD
- STL
1 stop15h 00m
United Airlines
Deal found 2/18![United Airlines logo]()
$707
Last-minute flights from St. Louis to MadridDiscover last-minute flight deals from St. Louis to Madrid. Data last updated febrero 22, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Madrid. Data last updated febrero 22, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/204:13 pm
STL
- MAD
2 stops18h 42m
British Airways
mar. 3/319:00 pm
MAD
- STL
2 stops33h 44m
British Airways
Deal found 2/20![British Airways logo]()
$574
This oojo deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/216:57 pm
STL
- MAD
1 stop28h 48m
British Airways
lun. 3/309:00 pm
MAD
- STL
2 stops33h 02m
British Airways
Deal found 2/19![British Airways logo]()
$590
This United Airlines deal was found by Cheapflights users on 2/21. 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.
dom. 3/224:05 pm
STL
- MAD
2 stops23h 05m
United Airlines
mié. 4/16:20 am
MAD
- STL
2 stops21h 48m
United Airlines
Deal found 2/21![United Airlines logo]()
$602
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/236:10 am
STL
- MAD
1 stop18h 50m
Delta
mar. 3/3110:25 am
MAD
- STL
2 stops17h 17m
Delta
Deal found 2/21![Delta logo]()
$579
This United Airlines deal was found by Cheapflights users on 2/21. 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.
lun. 3/231:14 pm
STL
- MAD
2 stops20h 36m
United Airlines
mié. 4/16:20 am
MAD
- STL
2 stops21h 48m
United Airlines
Deal found 2/21![United Airlines logo]()
$598
This oojo deal was found by Cheapflights users on 2/21. 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.
lun. 3/236:50 pm
STL
- MAD
2 stops17h 40m
British Airways
lun. 3/309:00 pm
MAD
- STL
2 stops33h 44m
British Airways
Deal found 2/21![British Airways logo]()
$618
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/245:59 pm
STL
- MAD
2 stops17h 41m
Delta
mié. 4/112:45 pm
MAD
- STL
1 stop18h 13m
Delta
Deal found 2/21![Delta logo]()
$580
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/241:39 pm
STL
- MAD
2 stops22h 01m
Delta
mar. 3/3110:25 am
MAD
- STL
2 stops20h 33m
Delta
Deal found 2/21![Delta logo]()
$583
This oojo deal was found by Cheapflights users on 2/21. 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.
mar. 3/2411:59 am
STL
- MAD
2 stops17h 56m
British Airways
lun. 3/309:00 pm
MAD
- STL
2 stops33h 44m
British Airways
Deal found 2/21![British Airways logo]()
$616
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 febrero 22, 2026.
Search for one-way flight options from St. Louis to Madrid. Find affordable one-way fares based on user searches. Data last updated febrero 22, 2026.
This Justfly.com deal was found by Cheapflights users on 2/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/49:37 am
STL
- MAD
2 stops17h 18m
Aer Lingus
Deal found 2/19![Aer Lingus logo]()
$322
This Mytrip deal was found by Cheapflights users on 2/21. 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.
lun. 4/134:05 pm
STL
- MAD
3 stops23h 20m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$361
This Justfly.com deal was found by Cheapflights users on 2/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/216:14 am
STL
- MAD
2 stops21h 41m
Aer Lingus
Deal found 2/19![Aer Lingus logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
dom. 3/224:50 pm
STL
- MAD
3 stops34h 55m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
sáb. 3/218:12 pm
STL
- MAD
3 stops38h 58m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 2/21. 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.
lun. 4/1312:15 pm
STL
- MAD
1 stop12h 50m
United Airlines
Deal found 2/21![United Airlines logo]()
$443
This eDestinos deal was found by Cheapflights users on 2/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/178:12 pm
STL
- MAD
2 stops54h 48m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$459
This Cheapflightsfares deal was found by Cheapflights users on 2/19. 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.
dom. 3/224:50 pm
STL
- MAD
1 stop22h 20m
Lufthansa
Deal found 2/19![Lufthansa logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
mié. 3/258:12 pm
STL
- MAD
3 stops36h 53m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$472
This eDestinos deal was found by Cheapflights users on 2/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/1812:25 pm
STL
- MAD
1 stop12h 55m
Iberia
Deal found 2/19![Iberia logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
vie. 5/154:55 pm
STL
- MAD
3 stops39h 10m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$476
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 febrero 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $481 (Delta) |
One-way from | $322 (Justfly.com) |
Popular in | June |
Cheapest in | November |
Average price | $669 |
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 febrero 22, 2026.
Use the filters below to find and compare flights from St. Louis to Madrid that are best for you.
Fly from
St. Louis
Fly to
Madrid
Route
Depart
Return
Price
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
dom. 4/12
6:30 am-8:05 am
2 stops18h 35m
Madrid Barajas
mar. 4/28
10:50 am-8:25 am
2 stops28h 35m
$482
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
dom. 4/12
9:42 am-9:55 am
1 stop17h 13m
Madrid Barajas
mar. 4/28
2:35 pm-9:27 am
1 stop25h 52m
$482
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
mié. 4/22
11:15 am-8:05 am
2 stops13h 50m
Madrid Barajas
mié. 4/29
11:15 am-9:08 pm
2 stops16h 53m
$572
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
mar. 3/24
12:04 pm-10:15 am
2 stops16h 11m
Madrid Barajas
mar. 3/31
6:00 am-8:42 pm
2 stops21h 42m
$632
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
jue. 4/23
9:10 am-8:05 am
2 stops15h 55m
Madrid Barajas
jue. 5/7
12:45 pm-8:05 pm
1 stop14h 20m
$670
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
mié. 3/4
7:41 am-8:00 am
2 stops17h 19m
Madrid Barajas
dom. 3/8
5:55 am-1:55 pm
1 stop15h 00m
$706
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
mié. 2/25
7:41 am-9:15 am
2 stops18h 34m
Madrid Barajas
dom. 3/1
5:55 am-1:55 pm
1 stop15h 00m
$707
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
sáb. 5/2
7:25 am-9:55 am
2 stops19h 30m
Madrid Barajas
lun. 5/11
10:25 am-11:21 pm
2 stops19h 56m
$739
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
lun. 4/13
12:25 pm-9:55 am
2 stops14h 30m
$322
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
mié. 3/4
9:37 am-9:55 am
2 stops17h 18m
$322
Showing 1-10 of 19 results
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 February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on St. Louis-Madrid flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Madrid flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Madrid flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Madrid flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Madrid flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Madrid
Have a flexible travel schedule? Discover the best time to fly to Madrid from St. Louis with our price prediction graph.
STL-MAD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Madrid
What is the cheapest month to book a flight from St. Louis to Madrid?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Madrid (average of $488). Flying from St. Louis to Madrid in June is currently the most expensive (average of $908). 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 febrero 22, 2026.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Air Canada from St. Louis to Madrid by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.6
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.6
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.6
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.6
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.6
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Entertainment
7.1
Overall
7.4
Food
6.6
Boarding
7.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
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 febrero 22, 2026.
St. Louis and Madrid flights
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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 febrero 22, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from St. Louis to Madrid
Discover the top 7 airlines that operate flights from St. Louis to Madrid. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated febrero 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$482 | Average$943 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$516 | Average$732 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$568 | Average$880 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$578 | Average$942 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$580 | Average$788 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$582 | Average$826 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$701 | Average$947 | FlexibilityNo cancel fee | On-time67% |