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$468+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Lambert-St Louis to Madrid Barajas are usually found in February or August, booked 20 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$673
(oojo)

One-way from

$468
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$610
Provider with most accurate pricing for Lambert-St Louis-Madrid Barajas flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Madrid Barajas flights.
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From Lambert-St Louis to Madrid Barajas
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One-way flight from Lambert-St Louis to Madrid Barajas
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Highest demand for flights based on searches. 28% potential increase in price ($367 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from St. Louis to Madrid

Cheapest flights from St. Louis to Madrid
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 February 20, 2025.

This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:15 amSTL - MAD
2 stops20h 20mUnited Airlines
Fri 1/912:15 pmMAD - STL
2 stops35h 59mUnited Airlines
Deal found 2/20$651
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/112:44 pmSTL - MAD
1 stop12h 11mMultiple Airlines
Fri 1/91:15 pmMAD - STL
1 stop14h 08mMultiple Airlines
Deal found 2/20$664
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.
Tue 4/111:55 amSTL - MAD
1 stop18h 30mBritish Airways
Tue 4/81:45 pmMAD - STL
1 stop14h 13mBritish Airways
Deal found 2/19$673
This StudentUniverse 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:29 pmSTL - MAD
1 stop11h 56mFinnair
Tue 4/86:45 amMAD - STL
2 stops22h 27mFinnair
Deal found 2/19$674
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/111:55 pmSTL - MAD
1 stop12h 30mAmerican Airlines
Fri 1/912:40 pmMAD - STL
2 stops16h 09mAmerican Airlines
Deal found 2/20$679
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:54 pmSTL - MAD
1 stop12h 01mIberia
Sat 1/1011:35 amMAD - STL
1 stop17h 14mIberia
Deal found 2/20$695
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/185:30 pmSTL - MAD
2 stops16h 35mDelta
Tue 3/259:00 amMAD - STL
2 stops30h 14mDelta
Deal found 2/20$754
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:45 pmSTL - MAD
1 stop14h 15mLufthansa
Fri 1/96:05 amMAD - STL
1 stop14h 50mLufthansa
Deal found 2/20$783
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:15 pmSTL - MAD
2 stops34h 20mAir Canada
Mon 1/1212:15 pmMAD - STL
2 stops33h 03mAir Canada
Deal found 2/20$788
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1010:19 amSTL - MAD
1 stop15h 41mKLM
Tue 3/1810:00 amMAD - STL
1 stop16h 18mKLM
Deal found 2/20$794
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/36:00 amSTL - MAD
2 stops22h 05mAer Lingus
Sun 3/98:40 amMAD - STL
2 stops18h 01mAer Lingus
Deal found 2/20$1,075
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.
Wed 2/265:36 pmSTL - MAD
2 stops33h 49mTurkish Airlines
Fri 3/72:55 pmMAD - STL
2 stops30h 36mTurkish Airlines
Deal found 2/20$1,086

Find flights from St. Louis to Madrid within your budget

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 February 20, 2025.

Fly from

St. Louis

Fly to

Madrid

Route

Depart

Return

Price

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 4/1

11:55 am-1:25 pm

1 stop18h 30m

Madrid Barajas

Tue 4/8

1:45 pm-8:58 pm

1 stop14h 13m

$673

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 4/1

6:29 pm-1:25 pm

1 stop11h 56m

Madrid Barajas

Tue 4/8

6:45 am-10:12 pm

2 stops22h 27m

$674

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 4/1

6:30 am-6:40 am

2 stops17h 10m

Madrid Barajas

Tue 4/8

12:45 pm-12:20 pm

2 stops30h 35m

$680

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 3/29

9:28 am-8:25 am

1 stop16h 57m

Madrid Barajas

Tue 4/8

1:45 pm-8:58 pm

1 stop14h 13m

$702

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 3/18

8:49 am-5:45 am

1 stop14h 56m

Madrid Barajas

Tue 3/25

10:45 am-10:18 pm

2 stops17h 33m

$739

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 3/18

5:30 pm-4:05 pm

2 stops16h 35m

Madrid Barajas

Tue 3/25

9:00 am-9:14 am

2 stops30h 14m

$754

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 3/10

10:19 am-8:00 am

1 stop15h 41m

Madrid Barajas

Tue 3/18

10:00 am-8:18 pm

1 stop16h 18m

$794

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 4/22

3:30 pm-12:10 pm

2 stops37h 40m

Madrid Barajas

Tue 4/29

12:55 pm-11:36 pm

2 stops41h 41m

$804

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 4/29

6:30 am-6:40 am

2 stops17h 10m

Madrid Barajas

Wed 5/7

12:15 pm-8:01 pm

1 stop14h 46m

$930

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 4/16

3:30 pm-4:15 pm

1 stop17h 45m

Madrid Barajas

Mon 4/21

1:05 pm-3:47 pm

2 stops33h 42m

$1,045

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 20 results
1
2

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.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Travel insights for flights from St. Louis to Madrid

Get recent, data-driven insights about flights from St. Louis to Madrid including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Madrid?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Madrid. Price data was last updated on February 14, 2025.

The best time to book flights from St. Louis to Madrid is 19 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, November is the cheapest month in which you can book a flight from St. Louis to Madrid (average of $543). Flying from St. Louis to Madrid in June is currently the most expensive (average of $1,124). 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.

What is the cheapest time of day to fly from STL to MAD?

Find hourly flight availability from St. Louis to Madrid. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

One of the essential ways to save on airfare from St. Louis to Madrid is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 18% on airfare.

Rainfall in Madrid by month

Plan your trip to Madrid by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Madrid ranges from 0.4 - 2.4 inches per month. November is typically the wettest month, when rainfall can reach 2.4 in. July is typically the driest time to visit Madrid when rainfall is around 0.4 in.

Temperature in Madrid by month

Plan your trip to Madrid by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Madrid, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 February 20, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from St. Louis to Madrid. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,274 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines flying from St. Louis to Madrid round-trip?

    According to our current data, British Airways ($673), KLM ($674), and United Airlines ($680) offers the cheapest pricing from St. Louis to Madrid. You may be able to fly from St. Louis to Madrid for 28% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from St. Louis to Madrid one-way?

    The cheapest airlines for a one-way flight from St. Louis to Madrid are Aer Lingus ($604), British Airways ($606), and American Airlines ($608).

  • Can I find deals for flights from St. Louis to Madrid that include hotel bookings?

    Yes. In addition to deals on St. Louis to Madrid flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Madrid?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Madrid.

  • Can I find deals for business class flights from St. Louis to Madrid?

    Yes. Cheapflights offers flight deals from St. Louis to Madrid by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Madrid?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Madrid (average of $543). Flying from St. Louis to Madrid in June is currently the most expensive (average of $1,124). 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Segovia
Fuenlabrada

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Alternative routes for St. Louis to Madrid

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from St. Louis to Madrid

Discover the top 8 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$545Average$850FlexibilityNo cancel feeOn-time70%
IberiaCheapest$553Average$888FlexibilityNo cancel feeOn-time77%
DeltaCheapest$556Average$823FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$587Average$923FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$615Average$762FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$647Average$823FlexibilityNo cancel feeOn-time69%
KLMCheapest$655Average$1,313FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$670Average$1,317FlexibilityNo cancel feeOn-time67%
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