HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Madrid

$399+ 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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.

The best prices from Lambert-St Louis to Madrid Barajas are usually found in February or August, booked 49 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 January 21, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$567
(Priceline)

One-way from

$399
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$759
Provider with most accurate pricing for Lambert-St Louis-Madrid Barajas flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Madrid Barajas flights.
Search Deals
From Lambert-St Louis to Madrid Barajas
Search Deals
One-way flight from Lambert-St Louis to Madrid Barajas
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($389 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

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 January 21, 2025.

This Priceline deal was found by Cheapflights users on 1/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/83:50 pmSTL - MAD
2 stops34h 45mAir Canada
Wed 3/1912:15 pmMAD - STL
2 stops32h 08mAir Canada
Deal found 1/21$567
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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.
Tue 3/42:21 pmSTL - MAD
1 stop12h 29mIberia
Thu 3/201:30 pmMAD - STL
1 stop13h 18mIberia
Deal found 1/20$576
This Finnair deal was found by Cheapflights users on 1/20. 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.
Mon 1/2712:00 pmSTL - MAD
1 stop12h 55mMultiple Airlines
Tue 2/1111:35 amMAD - STL
1 stop17h 34mMultiple Airlines
Deal found 1/20$583
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/94:45 pmSTL - MAD
1 stop14h 20mUnited Airlines
Wed 3/1912:15 pmMAD - STL
2 stops32h 08mUnited Airlines
Deal found 1/21$588
This Delta deal was found by Cheapflights users on 1/21. 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.
Tue 3/46:06 amSTL - MAD
1 stop18h 54mDelta
Wed 3/199:00 amMAD - STL
1 stop14h 51mDelta
Deal found 1/21$594
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 3/512:00 pmSTL - MAD
1 stop12h 55mAmerican Airlines
Fri 3/1412:30 pmMAD - STL
2 stops15h 52mAmerican Airlines
Deal found 1/20$599
This Expedia deal was found by Cheapflights users on 1/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/85:37 pmSTL - MAD
2 stops36h 03mBritish Airways
Wed 3/1911:35 amMAD - STL
1 stop16h 43mBritish Airways
Deal found 1/21$603
This KLM deal was found by Cheapflights users on 1/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/91:48 pmSTL - MAD
2 stops16h 27mKLM
Thu 3/2011:00 amMAD - STL
2 stops16h 40mKLM
Deal found 1/21$632
This Lufthansa deal was found by Cheapflights users on 1/20. 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.
Sat 3/85:33 pmSTL - MAD
2 stops36h 32mLufthansa
Tue 3/187:25 amMAD - STL
2 stops37h 30mLufthansa
Deal found 1/20$668
This Air France deal was found by Cheapflights users on 1/21. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/56:06 amSTL - MAD
1 stop18h 54mAir France
Mon 3/1710:00 amMAD - STL
1 stop14h 05mAir France
Deal found 1/21$916
This Ovago deal was found by Cheapflights users on 1/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/81:30 pmSTL - MAD
2 stops39h 40mScandinavian Airlines
Thu 9/1812:55 pmMAD - STL
2 stops41h 44mScandinavian Airlines
Deal found 1/20$930

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 3/8

3:50 pm-9:35 am

2 stops34h 45m

Madrid Barajas

Wed 3/19

12:15 pm-2:23 pm

2 stops32h 08m

$567

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 3/4

12:00 pm-7:55 am

1 stop12h 55m

Madrid Barajas

Tue 3/11

11:35 am-9:40 pm

1 stop16h 05m

$576

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 1/27

12:00 pm-7:55 am

1 stop12h 55m

Madrid Barajas

Tue 2/11

11:35 am-10:09 pm

1 stop17h 34m

$583

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 3/9

4:45 pm-1:05 pm

1 stop14h 20m

Madrid Barajas

Wed 3/19

12:15 pm-2:23 pm

2 stops32h 08m

$588

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 2/23

6:43 am-8:00 am

2 stops18h 17m

Madrid Barajas

Tue 3/11

9:00 am-9:40 pm

2 stops18h 40m

$591

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 2/18

6:00 pm-4:50 pm

2 stops15h 50m

Madrid Barajas

Fri 2/28

1:15 pm-8:42 pm

1 stop14h 27m

$596

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 3/9

1:48 pm-12:15 pm

2 stops16h 27m

Madrid Barajas

Tue 3/18

11:00 am-9:40 pm

2 stops16h 40m

$632

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Thu 2/13

5:37 pm-2:25 pm

1 stop13h 48m

Madrid Barajas

Tue 2/18

1:15 pm-10:02 pm

2 stops15h 47m

$649

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 3/9

4:45 pm-3:45 pm

1 stop17h 00m

Madrid Barajas

Tue 3/18

4:55 pm-2:55 pm

1 stop28h 00m

$703

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 3/8

7:04 pm-10:00 pm

3 stops43h 56m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 13 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 January.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Madrid flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 January 17, 2025.

The best time to book flights from St. Louis to Madrid is 49 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 $1,130). 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 January 21, 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 January 21, 2025.
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

Air Canada
7.0
Good
8,635 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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, Air Canada ($567), Iberia ($576), and United Airlines ($588) offers the cheapest pricing from St. Louis to Madrid. You may be able to fly from St. Louis to Madrid for 39% 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 British Airways ($461), KLM ($463), and Air Canada ($468).

  • 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 $1,130). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Madrid

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Madrid flights
Springfield to Madrid flights
Columbia to Madrid flights

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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$499Average$823FlexibilityNo cancel feeOn-time69%
IberiaCheapest$511Average$836FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$534Average$846FlexibilityNo cancel feeOn-time70%
KLMCheapest$540Average$1,187FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$546Average$876FlexibilityNo cancel feeOn-time71%
DeltaCheapest$556Average$823FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$615Average$849FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$670Average$1,317FlexibilityNo cancel feeOn-time67%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.