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

Iberia, at $734, was found to be the cheapest airline from Madrid to St. Louis.Alternate airlines to your destination round-trip include Air Canada and KLM. You may be able to fly from Madrid to St. Louis for 20% less than the average price by searching for these airlines.

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

The cheapest airline one-way is Iberia, with whom users have recently found tickets for as low as $754. However, be on the lookout for offers from Finnair and Avianca, as they are both options that can get you from Madrid to St. Louis for a low price.

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

Currently, August is the cheapest month in which you can book a flight from Madrid to St. Louis (average of $311). Flying from Madrid to St. Louis in March is currently the most expensive (average of $356). 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 day to fly from Madrid to St. Louis?

Travelers seeking maximum savings on their Madrid to St. Louis flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Madrid to St. Louis?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 65% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from Madrid to St. Louis?

February can be a great time to fly to St. Louis from Madrid with a flight ticket averaging about $923. Cheapflights users have found deals in the month of February for as cheap as $612. The most expensive prices can be found in the month of December.

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

One of the essential ways to save on airfare from Madrid to St. Louis 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 20% on airfare.

Most accurate provider : When it comes to deals on Madrid-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Madrid-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Madrid-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Madrid-St. Louis 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 Madrid-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

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

$700+ Flights from Madrid, Spain to St. Louis

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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”

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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.

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Cheap flight deals from Madrid to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$734 (Iberia)
Popular in	December
Cheapest in	February
Average price	$1,039

Provider with most accurate pricing for Madrid Barajas-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Madrid Barajas-Lambert-St Louis flights.

Search Deals

From Madrid Barajas to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 1% potential increase in price ($18 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Madrid to St. Louis

Cheapest flights from Madrid to St. Louis
Explore the most affordable flight options available from Madrid to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Thu 5/811:35 amMAD - STL

1 stop13h 58mMultiple Airlines

Mon 5/121:38 pmSTL - MAD

1 stop11h 17mMultiple Airlines

Deal found 4/29

$700

Tue 5/612:40 pmMAD - STL

1 stop17h 05mIberia

Mon 5/267:30 pmSTL - MAD

1 stop10h 55mIberia

Deal found 4/29

$734

Thu 5/1512:45 pmMAD - STL

1 stop14h 13mAir Canada

Mon 5/197:30 amSTL - MAD

2 stops23h 40mAir Canada

Deal found 4/29

$804

Thu 5/151:05 pmMAD - STL

2 stops17h 33mKLM

Mon 5/196:05 pmSTL - MAD

2 stops15h 20mKLM

Deal found 4/29

$817

Thu 5/812:45 pmMAD - STL

1 stop14h 13mUnited Airlines

Mon 5/1210:39 amSTL - MAD

2 stops14h 26mUnited Airlines

Deal found 4/29

$840

Fri 5/96:00 amMAD - STL

2 stops17h 47mDelta

Sat 5/245:17 pmSTL - MAD

2 stops19h 13mDelta

Deal found 4/29

$863

Tue 5/611:35 amMAD - STL

1 stop19h 16mBritish Airways

Thu 5/227:30 pmSTL - MAD

2 stops15h 10mBritish Airways

Deal found 4/29

$876

Thu 5/151:00 pmMAD - STL

1 stop26h 56mAmerican Airlines

Mon 5/196:00 amSTL - MAD

1 stop20h 35mAmerican Airlines

Deal found 4/29

$905

Fri 5/910:05 amMAD - STL

1 stop13h 30mVirgin Atlantic

Sat 5/2412:59 pmSTL - MAD

1 stop13h 36mVirgin Atlantic

Deal found 4/29

$910

Thu 6/1211:15 amMAD - STL

1 stop15h 07mLufthansa

Sun 6/1511:30 amSTL - MAD

1 stop14h 30mLufthansa

Deal found 4/29

$996

Mon 5/51:30 amMAD - STL

2 stops39h 28mAvianca

Mon 5/269:50 amSTL - MAD

2 stops30h 40mAvianca

Deal found 4/29

$1,660

Best flights from Madrid to St. Louis
Discover carefully curated flight deals from Madrid to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Mon 5/1211:35 amMAD - STL

1 stop17h 17mIberia

Mon 5/267:30 pmSTL - MAD

1 stop10h 55mIberia

Deal found 4/29

$734

Thu 5/1512:45 pmMAD - STL

1 stop14h 13mAir Canada

Mon 5/197:30 amSTL - MAD

2 stops23h 40mAir Canada

Deal found 4/29

$804

Thu 5/151:05 pmMAD - STL

2 stops17h 33mKLM

Mon 5/196:05 pmSTL - MAD

2 stops15h 20mKLM

Deal found 4/29

$817

Mon 5/1212:30 pmMAD - STL

1 stop14h 13mUnited Airlines

Sat 5/245:33 pmSTL - MAD

2 stops31h 32mUnited Airlines

Deal found 4/29

$852

Fri 5/96:00 amMAD - STL

2 stops17h 47mDelta

Sat 5/245:17 pmSTL - MAD

2 stops19h 13mDelta

Deal found 4/29

$863

Mon 5/124:40 pmMAD - STL

1 stop14h 11mBritish Airways

Thu 5/227:30 pmSTL - MAD

2 stops15h 10mBritish Airways

Deal found 4/29

$876

Thu 5/151:00 pmMAD - STL

1 stop26h 56mAmerican Airlines

Mon 5/196:00 amSTL - MAD

1 stop20h 35mAmerican Airlines

Deal found 4/29

$905

Fri 5/910:05 amMAD - STL

1 stop13h 30mVirgin Atlantic

Sat 5/2412:59 pmSTL - MAD

1 stop13h 36mVirgin Atlantic

Deal found 4/29

$910

Thu 6/121:35 pmMAD - STL

3 stops34h 29mMultiple Airlines

Sun 6/157:30 amSTL - MAD

3 stops29h 55mMultiple Airlines

Deal found 4/29

$951

Thu 6/1211:15 amMAD - STL

1 stop15h 07mLufthansa

Sun 6/1511:30 amSTL - MAD

1 stop14h 30mLufthansa

Deal found 4/29

$996

Fri 5/99:40 amMAD - STL

2 stops55h 18mAvianca

Sun 5/259:50 amSTL - MAD

2 stops21h 15mAvianca

Deal found 4/29

$1,902

Last-minute flights from Madrid to St. Louis
Discover last-minute flight deals from Madrid to St. Louis. Data last updated April 30, 2025 and is based on user searches.

Mon 5/51:30 amMAD - STL

2 stops39h 28mAvianca

Mon 5/269:50 amSTL - MAD

2 stops30h 40mAvianca

Deal found 4/29

$1,660

Tue 5/612:40 pmMAD - STL

1 stop17h 05mIberia

Mon 5/267:30 pmSTL - MAD

1 stop10h 55mIberia

Deal found 4/29

$734

Tue 5/611:35 amMAD - STL

1 stop19h 16mBritish Airways

Thu 5/227:30 pmSTL - MAD

2 stops15h 10mBritish Airways

Deal found 4/29

$876

Tue 5/612:45 pmMAD - STL

1 stop14h 13mAir Canada

Sun 5/257:30 amSTL - MAD

1 stop17h 50mAir Canada

Deal found 4/29

$903

Tue 5/612:40 pmMAD - STL

1 stop13h 49mAmerican Airlines

Sat 5/2410:36 amSTL - MAD

1 stop20h 44mAmerican Airlines

Deal found 4/29

$1,131

Thu 5/811:35 amMAD - STL

1 stop13h 58mMultiple Airlines

Mon 5/121:38 pmSTL - MAD

1 stop11h 17mMultiple Airlines

Deal found 4/29

$700

Thu 5/812:45 pmMAD - STL

1 stop14h 13mUnited Airlines

Mon 5/1210:39 amSTL - MAD

2 stops14h 26mUnited Airlines

Deal found 4/29

$840

Fri 5/96:00 amMAD - STL

2 stops17h 47mDelta

Sat 5/245:17 pmSTL - MAD

2 stops19h 13mDelta

Deal found 4/29

$863

Fri 5/910:05 amMAD - STL

1 stop13h 30mVirgin Atlantic

Sat 5/2412:59 pmSTL - MAD

1 stop13h 36mVirgin Atlantic

Deal found 4/29

$910

Thu 5/1512:45 pmMAD - STL

1 stop14h 13mAir Canada

Mon 5/197:30 amSTL - MAD

2 stops23h 40mAir Canada

Deal found 4/29

$804

Thu 5/151:05 pmMAD - STL

2 stops17h 33mKLM

Mon 5/196:05 pmSTL - MAD

2 stops15h 20mKLM

Deal found 4/29

$817

Thu 5/151:00 pmMAD - STL

1 stop26h 56mAmerican Airlines

Mon 5/196:00 amSTL - MAD

1 stop20h 35mAmerican Airlines

Deal found 4/29

$905

One-way flights from Madrid to St. Louis
Search for one-way flight options from Madrid to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Sat 9/611:35 amMAD - STL

1 stop19h 14mIberia

Deal found 4/29

$754

Thu 5/84:40 pmMAD - STL

1 stop12h 12mFinnair

Deal found 4/29

$815

Fri 9/51:30 amMAD - STL

2 stops23h 22mAvianca

Deal found 4/29

$842

Thu 5/812:00 pmMAD - STL

2 stops33h 47mTurkish Airlines

Deal found 4/29

$849

Fri 7/46:20 pmMAD - STL

2 stops27h 17mMultiple Airlines

Deal found 4/29

$907

Fri 7/411:15 amMAD - STL

1 stop14h 45mLufthansa

Deal found 4/29

$1,015

Fri 9/1911:35 amMAD - STL

1 stop14h 33mBritish Airways

Deal found 4/29

$1,250

Cheapflights Fare Finder

Use the filters below to find and compare flights from Madrid to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Mon 5/12

11:35 am-9:52 pm

1 stop17h 17m

Lambert-St Louis

Mon 5/26

7:30 pm-1:25 pm

1 stop10h 55m

$734

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 5/15

12:45 pm-7:58 pm

1 stop14h 13m

Lambert-St Louis

Mon 5/19

7:30 am-2:10 pm

2 stops23h 40m

$804

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 5/15

1:05 pm-11:38 pm

2 stops17h 33m

Lambert-St Louis

Mon 5/19

6:05 pm-4:25 pm

2 stops15h 20m

$817

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Mon 5/12

12:30 pm-7:43 pm

1 stop14h 13m

Lambert-St Louis

Sat 5/24

5:33 pm-8:05 am

2 stops31h 32m

$852

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 5/9

6:00 am-4:47 pm

2 stops17h 47m

Lambert-St Louis

Sat 5/24

5:17 pm-7:30 pm

2 stops19h 13m

$863

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Mon 5/12

4:40 pm-11:51 pm

1 stop14h 11m

Lambert-St Louis

Thu 5/22

7:30 pm-5:40 pm

2 stops15h 10m

$876

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 5/15

1:00 pm-8:56 am

1 stop26h 56m

Lambert-St Louis

Mon 5/19

6:00 am-9:35 am

1 stop20h 35m

$905

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Fri 5/9

10:05 am-4:35 pm

1 stop13h 30m

Lambert-St Louis

Sat 5/24

12:59 pm-9:35 am

1 stop13h 36m

$910

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 6/12

1:35 pm-5:04 pm

3 stops34h 29m

Lambert-St Louis

Sun 6/15

7:30 am-8:25 pm

3 stops29h 55m

$951

MadridSt. Louis

MAD - STL

MADSTL

Madrid Barajas

Thu 6/12

11:15 am-7:22 pm

1 stop15h 07m

Lambert-St Louis

Sun 6/15

11:30 am-9:00 am

1 stop14h 30m

$996

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 18 results

Compare providers for flights from Madrid to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Madrid to St. Louis in April.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust 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 Madrid-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Madrid-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Madrid-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Madrid-St. Louis 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 Madrid-St. Louis 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 Madrid to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Madrid 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 Madrid to St. Louis

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

To help decide which airline to fly from Madrid to St. Louis, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,936 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,273 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.4

Good

642 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from Madrid to St. Louis round-trip?
Iberia, at $734, was found to be the cheapest airline from Madrid to St. Louis.Alternate airlines to your destination round-trip include Air Canada and KLM. You may be able to fly from Madrid to St. Louis for 20% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Madrid to St. Louis one-way?
The cheapest airline one-way is Iberia, with whom users have recently found tickets for as low as $754. However, be on the lookout for offers from Finnair and Avianca, as they are both options that can get you from Madrid to St. Louis for a low price.
Can I find deals for flights from Madrid to St. Louis that include hotel bookings?
Yes. In addition to deals on Madrid to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Madrid to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Madrid to St. Louis.
Can I find deals for business class flights from Madrid to St. Louis?
Yes. Cheapflights offers flight deals from Madrid to St. Louis 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 Madrid to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Madrid to St. Louis (average of $311). Flying from Madrid to St. Louis in March is currently the most expensive (average of $356). 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

Fenton

Maryland Heights

Fairview Heights

Collinsville

Wentzville

Eureka

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Festus

Glencoe

Alton

Farmington

O'Fallon

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$700+ Cheap flights from Madrid, Spain (MAD) to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Madrid to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Madrid to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

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Average price

Find flight deals from Madrid to St. Louis

Cheapest flights from Madrid to St. LouisExplore the most affordable flight options available from Madrid to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Explore the most affordable flight options available from Madrid to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Madrid to St. Louis that are best for you.

Compare providers for flights from Madrid to St. Louis

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 Madrid to St. Louis in April.

Best time to book a flight from Madrid to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Madrid with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Madrid to St. Louis

Rainfall in St. Louis by month

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

Temperature in St. Louis by month

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

Reviews of airlines servicing St. Louis

To help decide which airline to fly from Madrid to St. Louis, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Madrid to St. Louis. 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 Madrid to St. Louis round-trip?

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

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

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

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

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

Traveling to a place near Madrid?

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Cheapest flights from Madrid to St. Louis
Explore the most affordable flight options available from Madrid to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.