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$278+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAD
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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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 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$356
(Ticket)

One-way from

$278
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$734
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. 22% potential increase in price ($255 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 8, 2026.

This Ticket deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/188:05 amSTL - MAD
2 stops16h 55mAir Canada
Tue 2/31:35 pmMAD - STL
2 stops31h 55mAir Canada
Deal found 1/8$356
This oojo deal was found by Cheapflights users on 1/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/106:46 pmSTL - MAD
2 stops16h 39mBritish Airways
Tue 2/171:15 pmMAD - STL
1 stop16h 49mBritish Airways
Deal found 1/7$426
This Virgin Atlantic deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/186:10 amSTL - MAD
2 stops42h 50mVirgin Atlantic
Tue 2/311:15 amMAD - STL
1 stop16h 22mVirgin Atlantic
Deal found 1/8$430
This Delta deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/189:59 amSTL - MAD
2 stops15h 01mDelta
Tue 2/310:00 amMAD - STL
1 stop17h 06mDelta
Deal found 1/8$431
This British Airways deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/162:00 pmSTL - MAD
1 stop11h 55mBritish Airways
Tue 3/2412:30 pmMAD - STL
1 stop35h 37mBritish Airways
Deal found 1/8$439
This oojo deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/162:00 pmSTL - MAD
1 stop11h 55mBritish Airways
Wed 2/256:05 pmMAD - STL
2 stops36h 43mBritish Airways
Deal found 1/8$442
This United Airlines deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/167:41 amSTL - MAD
2 stops18h 34mUnited Airlines
Wed 2/2511:15 amMAD - STL
2 stops29h 08mUnited Airlines
Deal found 1/8$444
This oojo deal was found by Cheapflights users on 1/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/216:50 pmSTL - MAD
1 stop31h 35mBritish Airways
Mon 3/309:00 pmMAD - STL
2 stops27h 01mBritish Airways
Deal found 1/7$447
This United Airlines deal was found by Cheapflights users on 1/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/66:30 amSTL - MAD
2 stops19h 45mUnited Airlines
Fri 2/131:35 pmMAD - STL
2 stops31h 54mUnited Airlines
Deal found 1/7$449

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 January 8, 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

Sun 1/18

11:05 am-8:50 am

1 stop14h 45m

Madrid Barajas

Tue 2/3

12:00 pm-6:16 pm

1 stop13h 16m

$430

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

6:10 am-8:00 am

2 stops42h 50m

Madrid Barajas

Tue 2/3

11:15 am-8:37 pm

1 stop16h 22m

$430

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

11:05 am-8:50 am

1 stop14h 45m

Madrid Barajas

Tue 2/3

1:15 pm-10:44 pm

1 stop16h 29m

$431

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 1/18

9:59 am-8:00 am

2 stops15h 01m

Madrid Barajas

Tue 2/3

10:00 am-8:06 pm

1 stop17h 06m

$431

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 3/16

2:00 pm-7:55 am

1 stop11h 55m

Madrid Barajas

Tue 3/24

12:30 pm-6:07 pm

1 stop35h 37m

$439

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 3/17

11:59 am-4:55 pm

2 stops22h 56m

Madrid Barajas

Wed 3/25

8:50 pm-5:13 pm

2 stops26h 23m

$449

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 3/21

6:50 pm-6:30 pm

2 stops17h 40m

Madrid Barajas

Mon 3/30

9:00 pm-11:04 pm

2 stops33h 04m

$456

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 2/7

11:22 am-9:15 am

1 stop14h 53m

Madrid Barajas

Fri 2/13

5:10 pm-5:44 pm

2 stops31h 34m

$491

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 3/15

6:10 am-10:15 am

2 stops22h 05m

Madrid Barajas

Tue 3/24

12:35 pm-12:19 pm

2 stops29h 44m

$496

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 4/28

9:35 pm-8:05 pm

1 stop15h 30m

Madrid Barajas

Wed 5/6

1:35 pm-10:14 pm

1 stop15h 39m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 22 results
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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*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Madrid flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 $907). 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.

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 8, 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.
United Airlines
7.4
Good
9,142 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,142 reviews
United Airlines
7.4
Good
9,142 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
American Airlines
7.2
Good
11,097 reviews
United Airlines
7.4
Good
9,142 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Air Canada
7.1
Good
10,603 reviews
United Airlines
7.4
Good
9,142 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Iberia
7.0
Good
3,079 reviews
United Airlines
7.4
Good
9,142 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
British Airways
6.7
Okay
7,659 reviews
United Airlines
7.4
Good
9,142 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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.

  • How long is the flight from St. Louis to Madrid?

    A quick flight from St. Louis to Madrid can take about 14h 45m. Virgin Atlantic provides one of the quickest options available for as low as $431. The distance between St. Louis and Madrid is about 4414 mi. This flight may include one or multiple stops.

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

    According to our current data, British Airways ($516), Lufthansa ($524), and United Airlines ($578) 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.

  • 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, 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 $907). 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 Madrid?

Book flights to Madrid if you plan to visit one of these locations
Getafe

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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.
Kansas City to Madrid flights
Springfield to Madrid flights
Columbia to Madrid flights

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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$516Average$734FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$524Average$762FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$578Average$944FlexibilityNo cancel feeOn-time69%
IberiaCheapest$586Average$907FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$587Average$880FlexibilityNo cancel feeOn-time71%
DeltaCheapest$587Average$788FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$701Average$947FlexibilityNo cancel feeOn-time67%

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