$424+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
mai 8 — mai 151
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 april 8, 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 april 8, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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.
on. 10/213:30 pm
STL
- MAD
1 stop18h 10m
Lufthansa
fr. 10/306:00 am
MAD
- STL
1 stop14h 55m
Lufthansa
Deal found 4/6![Lufthansa logo]()
$701
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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.
on. 10/284:50 pm
STL
- MAD
1 stop17h 10m
Lufthansa
on. 11/118:30 am
MAD
- STL
2 stops21h 55m
Lufthansa
Deal found 4/6![Lufthansa logo]()
$710
This Air Canada deal was found by Cheapflights users on 4/4. 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.
on. 10/286:40 am
STL
- MAD
2 stops18h 20m
Air Canada
on. 11/111:35 pm
MAD
- STL
2 stops33h 03m
Air Canada
Deal found 4/4![Air Canada logo]()
$719
This oojo deal was found by Cheapflights users on 4/6. 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.
on. 10/79:35 pm
STL
- MAD
1 stop15h 30m
British Airways
on. 10/213:25 pm
MAD
- STL
1 stop15h 16m
British Airways
Deal found 4/6![British Airways logo]()
$722
This United Airlines deal was found by Cheapflights users on 4/6. 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.
ti. 9/296:40 am
STL
- MAD
2 stops18h 25m
United Airlines
fr. 10/91:30 pm
MAD
- STL
2 stops33h 56m
United Airlines
Deal found 4/6![United Airlines logo]()
$725
This British Airways deal was found by Cheapflights users on 4/7. 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.
ti. 9/299:35 pm
STL
- MAD
1 stop12h 55m
British Airways
fr. 10/93:55 pm
MAD
- STL
1 stop14h 46m
British Airways
Deal found 4/7![British Airways logo]()
$727
This FlightHub deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sø. 8/168:55 am
STL
- MAD
1 stop16h 55m
Multiple Airlines
fr. 9/116:00 am
MAD
- STL
1 stop14h 25m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$729
This United Airlines deal was found by Cheapflights users on 4/6. 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.
on. 10/2111:45 am
STL
- MAD
2 stops13h 20m
United Airlines
fr. 10/306:00 am
MAD
- STL
1 stop14h 55m
United Airlines
Deal found 4/6![United Airlines logo]()
$730
This oojo deal was found by Cheapflights users on 4/5. 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.
on. 9/308:07 pm
STL
- MAD
1 stop10h 23m
British Airways
on. 10/143:25 pm
MAD
- STL
1 stop15h 16m
British Airways
Deal found 4/5![British Airways logo]()
$731
This United Airlines deal was found by Cheapflights users on 4/6. 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.
on. 10/79:23 am
STL
- MAD
2 stops17h 27m
United Airlines
on. 10/215:55 am
MAD
- STL
1 stop14h 30m
United Airlines
Deal found 4/6![United Airlines logo]()
$734
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 april 8, 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 april 8, 2026.
This British Airways deal was found by Cheapflights users on 4/5. 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.
ti. 9/299:35 pm
STL
- MAD
1 stop12h 55m
British Airways
fr. 10/93:55 pm
MAD
- STL
1 stop14h 46m
British Airways
Deal found 4/5![British Airways logo]()
$727
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti. 9/293:30 pm
STL
- MAD
1 stop13h 40m
United Airlines
fr. 10/91:30 pm
MAD
- STL
2 stops33h 56m
United Airlines
Deal found 4/3![United Airlines logo]()
$764
This Delta deal was found by Cheapflights users on 4/7. 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.
on. 9/304:13 pm
STL
- MAD
2 stops16h 22m
Delta
on. 10/146:00 am
MAD
- STL
2 stops21h 37m
Delta
Deal found 4/7![Delta logo]()
$791
This KLM deal was found by Cheapflights users on 4/6. 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.
on. 5/65:35 pm
STL
- MAD
2 stops15h 00m
Multiple Airlines
on. 5/139:50 am
MAD
- STL
1 stop13h 20m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$888
This Turkish Airlines deal was found by Cheapflights users on 4/5. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to. 4/237:45 am
STL
- MAD
2 stops19h 40m
Turkish Airlines
to. 5/77:40 am
MAD
- STL
2 stops44h 33m
Turkish Airlines
Deal found 4/5![Turkish Airlines logo]()
$952
This Virgin Atlantic deal was found by Cheapflights users on 4/6. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
on. 4/2211:42 am
STL
- MAD
2 stops15h 13m
Virgin Atlantic
ti. 5/512:45 pm
MAD
- STL
1 stop17h 51m
Virgin Atlantic
Deal found 4/6![Virgin Atlantic logo]()
$972
This Lufthansa deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 8/143:30 pm
STL
- MAD
1 stop21h 20m
Lufthansa
sø. 9/135:15 pm
MAD
- STL
1 stop27h 10m
Lufthansa
Deal found 4/3![Lufthansa logo]()
$996
This KLM deal was found by Cheapflights users on 4/5. 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.
to. 4/2310:50 am
STL
- MAD
2 stops15h 40m
KLM
to. 5/79:50 am
MAD
- STL
1 stop13h 20m
KLM
Deal found 4/5![KLM logo]()
$1,026
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 8/33:30 pm
STL
- MAD
1 stop21h 00m
United Airlines
ma. 8/105:55 am
MAD
- STL
1 stop14h 30m
United Airlines
Deal found 4/3![United Airlines logo]()
$1,030
Last-minute flights from St. Louis to MadridDiscover last-minute flight deals from St. Louis to Madrid. Data last updated april 8, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Madrid. Data last updated april 8, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lø. 4/117:45 am
STL
- MAD
2 stops40h 05m
Air Canada
ti. 9/81:30 pm
MAD
- STL
2 stops29h 43m
Air Canada
Deal found 4/3![Air Canada logo]()
$870
This Air Canada deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lø. 4/117:45 am
STL
- MAD
2 stops40h 05m
Air Canada
on. 9/912:45 pm
MAD
- STL
1 stop12h 56m
Air Canada
Deal found 4/3![Air Canada logo]()
$878
This United Airlines deal was found by Cheapflights users on 4/6. 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.
sø. 4/1211:15 am
STL
- MAD
2 stops13h 50m
United Airlines
ti. 4/285:55 am
MAD
- STL
2 stops25h 02m
United Airlines
Deal found 4/6![United Airlines logo]()
$872
This Air Canada deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sø. 4/124:05 pm
STL
- MAD
2 stops55h 45m
Air Canada
ti. 9/81:30 pm
MAD
- STL
2 stops33h 08m
Air Canada
Deal found 4/3![Air Canada logo]()
$873
This Finnair deal was found by Cheapflights users on 4/7. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sø. 4/127:05 am
STL
- MAD
1 stop18h 15m
Multiple Airlines
ti. 4/2811:45 am
MAD
- STL
1 stop17h 34m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$875
This Delta deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 4/136:25 am
STL
- MAD
1 stop20h 30m
Delta
ti. 9/812:45 pm
MAD
- STL
1 stop15h 05m
Delta
Deal found 4/3![Delta logo]()
$882
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti. 4/149:10 am
STL
- MAD
2 stops15h 55m
United Airlines
on. 9/95:55 am
MAD
- STL
1 stop14h 30m
United Airlines
Deal found 4/3![United Airlines logo]()
$876
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
on. 4/157:45 am
STL
- MAD
2 stops17h 20m
United Airlines
ti. 9/811:15 am
MAD
- STL
2 stops17h 07m
United Airlines
Deal found 4/3![United Airlines logo]()
$886
This eDestinos deal was found by Cheapflights users on 4/4. 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.
to. 5/710:19 am
STL
- MAD
2 stops16h 36m
Virgin Atlantic
ma. 5/189:50 am
MAD
- STL
1 stop13h 25m
Virgin Atlantic
Deal found 4/4![Virgin Atlantic logo]()
$868
This oojo deal was found by Cheapflights users on 4/6. 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.
lø. 5/93:38 pm
STL
- MAD
1 stop34h 57m
British Airways
ti. 5/2612:40 pm
MAD
- STL
1 stop18h 19m
British Airways
Deal found 4/6![British Airways logo]()
$884
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 april 8, 2026.
Search for one-way flight options from St. Louis to Madrid. Find affordable one-way fares based on user searches. Data last updated april 8, 2026.
This Justfly.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lø. 4/115:21 pm
STL
- MAD
2 stops33h 34m
Aer Lingus
Deal found 4/3![Aer Lingus logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
fr. 5/85:27 pm
STL
- MAD
3 stops38h 38m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$511
This Justfly.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sø. 4/125:21 pm
STL
- MAD
2 stops19h 44m
Aer Lingus
Deal found 4/3![Aer Lingus logo]()
$514
This Kiwi.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
on. 4/153:30 pm
STL
- MAD
2 stops32h 00m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$550
This oojo deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
on. 7/111:18 am
STL
- MAD
1 stop15h 17m
British Airways
Deal found 4/3![British Airways logo]()
$576
This Cheapflightsfares deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sø. 4/123:30 pm
STL
- MAD
1 stop14h 05m
Lufthansa
Deal found 4/3![Lufthansa logo]()
$580
This Justfly.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lø. 5/1612:27 pm
STL
- MAD
2 stops14h 28m
Aer Lingus
Deal found 4/3![Aer Lingus logo]()
$583
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti. 4/146:15 am
STL
- MAD
2 stops17h 35m
United Airlines
Deal found 4/3![United Airlines logo]()
$591
This KLM deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 4/1311:42 am
STL
- MAD
2 stops15h 13m
KLM
Deal found 4/3![KLM logo]()
$592
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 april 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $722 (oojo) |
One-way from | $427 (Justfly.com) |
Popular in | June |
Cheapest in | November |
Average price | $725 |
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 april 8, 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
Quickest round-trip
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
ti. 9/29
9:35 pm-5:30 pm
1 stop12h 55m
Madrid Barajas
fr. 10/9
3:55 pm-11:41 pm
1 stop14h 46m
$727
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
ti. 9/29
3:30 pm-12:10 pm
1 stop13h 40m
Madrid Barajas
fr. 10/9
1:30 pm-4:26 pm
2 stops33h 56m
$764
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
on. 9/30
4:13 pm-3:35 pm
2 stops16h 22m
Madrid Barajas
on. 10/14
6:00 am-8:37 pm
2 stops21h 37m
$791
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
on. 5/6
5:35 pm-3:35 pm
2 stops15h 00m
Madrid Barajas
on. 5/13
9:50 am-4:10 pm
1 stop13h 20m
$888
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
to. 4/23
7:45 am-10:25 am
2 stops19h 40m
Madrid Barajas
to. 5/7
7:40 am-9:13 pm
2 stops44h 33m
$952
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
on. 4/22
11:42 am-9:55 am
2 stops15h 13m
Madrid Barajas
ti. 5/5
12:45 pm-11:36 pm
1 stop17h 51m
$972
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
fr. 8/14
3:30 pm-7:50 pm
1 stop21h 20m
Madrid Barajas
sø. 9/13
5:15 pm-1:25 pm
1 stop27h 10m
$996
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
to. 4/23
10:50 am-9:30 am
2 stops15h 40m
Madrid Barajas
to. 5/7
9:50 am-4:10 pm
1 stop13h 20m
$1,026
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
ma. 8/3
3:30 pm-7:30 pm
1 stop21h 00m
Madrid Barajas
ma. 8/10
5:55 am-1:25 pm
1 stop14h 30m
$1,030
Cheapest one-way
St. LouisMadrid
STL - MAD
STLMAD
Lambert-St Louis
ti. 8/25
9:35 pm-8:05 pm
1 stop15h 30m
$424
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 April.
| 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 $905). 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 april 8, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andAir 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.
Crew
8.1
Overall
7.4
Food
6.6
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Overall
7.4
Food
6.6
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Overall
7.4
Food
6.6
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Overall
7.4
Food
6.6
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Overall
7.4
Food
6.6
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Overall
7.4
Food
6.6
Entertainment
7.1
Comfort
7.3
Boarding
7.7
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 april 8, 2026.
St. Louis and Madrid flights
Browse other St. Louis and Madrid flight options. Last updated on april 8, 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 april 8, 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 april 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$489 | Average$788 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$516 | Average$726 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$552 | Average$786 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$578 | Average$947 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$582 | Average$769 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$750 | Average$947 | FlexibilityNo cancel fee | On-time67% |