How long is the flight from Barcelona-El Prat Airport to St. Louis?

There are many flights that can get you from Barcelona-El Prat Airport to St. Louis in 17h 13m. Fly via United Airlines to get the fastest option. The distance between Barcelona-El Prat Airport and St. Louis is about 4638 mi.

What are the cheapest airlines to fly from Barcelona-El Prat Airport to St. Louis one-way?

To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $471. Lufthansa flights start at $644 while deals on British Airways start at $662 one-way.

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.

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).

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

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

What airport do you fly into for flights to St. Louis from Barcelona-El Prat?

Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Barcelona-El Prat to St. Louis. 0 airlines have flights to Lambert-St Louis from Barcelona-El Prat on a regular basis. Booking flights from Barcelona-El Prat to Lambert-St Louis should not be difficult; the airport handles an average of 0 inbound flights from Barcelona-El Prat per day.

Can I find deals for flights from Barcelona-El Prat to St. Louis that include hotel bookings?

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

How can I find direct flights from Barcelona-El Prat to St. Louis?

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

Can I find deals for business class flights from Barcelona-El Prat to St. Louis?

Yes. Cheapflights offers flight deals from Barcelona-El Prat 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.

$313+ Flights from Barcelona-El Prat Airport to St. Louis

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Barcelona-El Prat to St. Louis 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.

Cheap flight deals from Barcelona-El Prat to St. Louis

Cheapest flights from Barcelona-El Prat to St. Louis
Explore the most affordable flight options available from Barcelona-El Prat to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Sun 12/2810:30 amBCN - STL

1 stop30h 38mUnited Airlines

Thu 1/89:57 amSTL - BCN

2 stops16h 03mUnited Airlines

Deal found 12/11

$874

Sun 12/289:30 amBCN - STL

1 stop13h 58mMultiple Airlines

Thu 1/812:00 pmSTL - BCN

1 stop13h 40mMultiple Airlines

Deal found 12/10

$1,027

Sun 12/289:30 amBCN - STL

1 stop21h 12mKLM

Thu 1/87:10 amSTL - BCN

1 stop18h 30mKLM

Deal found 12/11

$1,028

Sun 12/289:55 amBCN - STL

3 stops19h 48mAir Canada

Thu 1/84:05 pmSTL - BCN

2 stops15h 00mAir Canada

Deal found 12/11

$1,593

Best flights from Barcelona-El Prat to St. Louis
Discover carefully curated flight deals from Barcelona-El Prat to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Thu 1/2211:00 amBCN - STL

2 stops17h 13mUnited Airlines

Mon 1/266:30 amSTL - BCN

2 stops19h 30mUnited Airlines

Deal found 12/10

$798

Thu 1/2212:30 pmBCN - STL

1 stop17h 14mBritish Airways

Mon 1/262:54 pmSTL - BCN

2 stops18h 11mBritish Airways

Deal found 12/9

$943

Thu 1/2210:40 amBCN - STL

1 stop15h 49mAmerican Airlines

Mon 1/2611:55 amSTL - BCN

1 stop13h 55mAmerican Airlines

Deal found 12/11

$961

Sun 12/289:30 amBCN - STL

1 stop13h 58mMultiple Airlines

Thu 1/812:00 pmSTL - BCN

1 stop13h 40mMultiple Airlines

Deal found 12/10

$1,027

Sun 12/289:30 amBCN - STL

1 stop21h 12mKLM

Thu 1/87:10 amSTL - BCN

1 stop18h 30mKLM

Deal found 12/11

$1,028

Sun 12/2810:30 amBCN - STL

1 stop30h 38mUnited Airlines

Thu 1/89:57 amSTL - BCN

2 stops16h 03mUnited Airlines

Deal found 12/11

$874

Wed 1/76:50 amBCN - STL

2 stops40h 13mUnited Airlines

Sat 1/1711:20 amSTL - BCN

2 stops14h 40mUnited Airlines

Deal found 12/11

$1,175

Last-minute flights from Barcelona-El Prat to St. Louis
Discover last-minute flight deals from Barcelona-El Prat to St. Louis. Data last updated December 12, 2025 and is based on user searches.

Sun 12/2811:00 amBCN - STL

2 stops18h 43mUnited Airlines

Thu 1/811:20 amSTL - BCN

2 stops14h 40mUnited Airlines

Deal found 12/11

$874

Thu 1/2211:00 amBCN - STL

2 stops17h 13mUnited Airlines

Mon 1/266:30 amSTL - BCN

2 stops19h 30mUnited Airlines

Deal found 12/10

$798

Thu 1/2212:30 pmBCN - STL

1 stop17h 14mBritish Airways

Mon 1/262:54 pmSTL - BCN

2 stops18h 11mBritish Airways

Deal found 12/9

$943

Thu 1/2212:30 pmBCN - STL

1 stop17h 14mAmerican Airlines

Mon 1/269:34 amSTL - BCN

1 stop16h 16mAmerican Airlines

Deal found 12/9

$955

One-way flights from Barcelona-El Prat to St. Louis
Search for one-way flight options from Barcelona-El Prat to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Wed 3/46:55 pmBCN - STL

2 stops36h 04mMultiple Airlines

Deal found 12/10

$313

Thu 2/122:00 pmBCN - STL

2 stops37h 07mMultiple Airlines

Deal found 12/10

$488

Wed 4/2910:35 amBCN - STL

1 stop15h 55mMultiple Airlines

Deal found 12/11

$526

Wed 4/2910:35 amBCN - STL

2 stops18h 13mBritish Airways

Deal found 12/10

$537

Wed 4/16:30 pmBCN - STL

2 stops35h 03mMultiple Airlines

Deal found 12/10

$588

Find flight deals from Barcelona-El Prat to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$798 (United Airlines)
One-way from	$313 (Kiwi.com)
Popular in	August
Cheapest in	February
Average price	$879

Provider with most accurate pricing for Barcelona-El Prat-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Barcelona-El Prat-Lambert-St Louis flights.

Search Deals

From Barcelona-El Prat to Lambert-St Louis

Search Deals

One-way flight from Barcelona-El Prat to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($105 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Barcelona-El Prat Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 1/22

11:00 am-9:13 pm

2 stops17h 13m

Lambert-St Louis

Mon 1/26

6:30 am-9:00 am

2 stops19h 30m

$798

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Sun 12/28

10:30 am-10:08 am

1 stop30h 38m

Lambert-St Louis

Thu 1/8

9:57 am-9:00 am

2 stops16h 03m

$874

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 1/22

12:30 pm-10:44 pm

1 stop17h 14m

Lambert-St Louis

Mon 1/26

2:54 pm-4:05 pm

2 stops18h 11m

$943

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 1/22

10:40 am-7:29 pm

1 stop15h 49m

Lambert-St Louis

Mon 1/26

11:55 am-8:50 am

1 stop13h 55m

$961

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Sun 12/28

9:30 am-4:28 pm

1 stop13h 58m

Lambert-St Louis

Thu 1/8

12:00 pm-8:40 am

1 stop13h 40m

$1,027

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Sun 12/28

9:30 am-11:42 pm

1 stop21h 12m

Lambert-St Louis

Thu 1/8

7:10 am-8:40 am

1 stop18h 30m

$1,028

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 1/7

6:50 am-4:03 pm

2 stops40h 13m

Lambert-St Louis

Sat 1/17

11:20 am-9:00 am

2 stops14h 40m

$1,175

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 3/4

6:55 pm-11:59 pm

2 stops36h 04m

$313

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 2/12

2:00 pm-8:07 pm

2 stops37h 07m

$488

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 3/4

11:00 am-10:05 pm

1 stop18h 05m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 11 results

Compare providers for flights from Barcelona-El Prat to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Barcelona-El Prat to St. Louis in December.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Barcelona-El Prat 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 Barcelona-El Prat Airport to St. Louis

What is the cheapest month to book a flight from Barcelona-El Prat Airport to St. Louis?

Currently, April is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to St. Louis (average of $643). Flying from Barcelona-El Prat Airport to St. Louis in July is currently the most expensive (average of $993). 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 BCN to STL?

It’s optimal to fly from Barcelona-El Prat Airport to St. Louis in the evening. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

Related info for your journey

What airport do you fly into for flights to St. Louis from Barcelona-El Prat?
Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Barcelona-El Prat to St. Louis. 0 airlines have flights to Lambert-St Louis from Barcelona-El Prat on a regular basis. Booking flights from Barcelona-El Prat to Lambert-St Louis should not be difficult; the airport handles an average of 0 inbound flights from Barcelona-El Prat per day.
How long is the flight from Barcelona-El Prat Airport to St. Louis?
There are many flights that can get you from Barcelona-El Prat Airport to St. Louis in 17h 13m. Fly via United Airlines to get the fastest option. The distance between Barcelona-El Prat Airport and St. Louis is about 4638 mi.
What are the cheapest airlines to fly from Barcelona-El Prat Airport to St. Louis one-way?
To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $471. Lufthansa flights start at $644 while deals on British Airways start at $662 one-way.
Can I find deals for flights from Barcelona-El Prat to St. Louis that include hotel bookings?
Yes. In addition to deals on Barcelona-El Prat to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Barcelona-El Prat to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Barcelona-El Prat to St. Louis.
Can I find deals for business class flights from Barcelona-El Prat to St. Louis?
Yes. Cheapflights offers flight deals from Barcelona-El Prat 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 Barcelona-El Prat Airport to St. Louis?
Currently, April is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to St. Louis (average of $643). Flying from Barcelona-El Prat Airport to St. Louis in July is currently the most expensive (average of $993). 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

Edwardsville

O'Fallon

Fairview Heights

Maryland Heights

Collinsville

Swansea

Eureka

Glencoe

St. Peters

Chesterfield

Alton

Farmington

Festus

Browse thousands of different options on Cheapflights for your next trip

Other flights to St. Louis

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.

$313+ Cheap flights from Barcelona-El Prat (BCN) to St. Louis (STL)

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Barcelona-El Prat 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 Barcelona-El Prat to St. Louis

Cheapest flights from Barcelona-El Prat to St. LouisExplore the most affordable flight options available from Barcelona-El Prat to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Explore the most affordable flight options available from Barcelona-El Prat to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Find flight deals from Barcelona-El Prat to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Barcelona-El Prat Airport to St. Louis that are best for you.

Compare providers for flights from Barcelona-El Prat 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 Barcelona-El Prat to St. Louis in December.

Best time to book a flight from Barcelona-El Prat to St. Louis

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

Cheapflights Insights

Everything you need to know about your flight from Barcelona-El Prat Airport to St. Louis

What is the cheapest month to book a flight from Barcelona-El Prat Airport to St. Louis?

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

Related info for your journey

Find useful and relevant information for your journey from Barcelona-El Prat 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 airport do you fly into for flights to St. Louis from Barcelona-El Prat?

How long is the flight from Barcelona-El Prat Airport to St. Louis?

What are the cheapest airlines to fly from Barcelona-El Prat Airport to St. Louis one-way?

Can I find deals for flights from Barcelona-El Prat to St. Louis that include hotel bookings?

How can I find direct flights from Barcelona-El Prat to St. Louis?

Can I find deals for business class flights from Barcelona-El Prat to St. Louis?

What is the cheapest month to book a flight from Barcelona-El Prat Airport to St. Louis?

Traveling to a place near St. Louis?

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 Barcelona-El Prat to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Barcelona-El Prat to St. Louis
Explore the most affordable flight options available from Barcelona-El Prat to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.