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

Iberia, at $738, was found to be the cheapest airline from St. Louis to Barcelona.Alternate airlines to your destination round-trip include British Airways and United Airlines. You may be able to fly from St. Louis to Barcelona for 24% less than the average price by searching for these airlines.

What is the cheapest day to fly from St. Louis to Barcelona?

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

What are the most popular airlines that fly from St. Louis to Barcelona?

Before booking your flight from St. Louis to Barcelona check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

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

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 31% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from St. Louis to Barcelona?

Users have found that booking a flight from St. Louis to Barcelona at least 10 days early can save you up to 15% on average compared to booking a flight this week. If booking 10 days before your flight isn’t an option for you, users have found flights from St. Louis to Barcelona for as little as $640 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $740 for flights departing within the next 3 days.

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

Our data shows that February tends to be the cheapest month to fly to Barcelona from St. Louis. Users have commonly found prices around $984 for the month, but tickets can be as low as $480. Due to multiple factors, prepare for potentially higher prices in June.

What airport do you fly from for flights from St. Louis to Barcelona?

If you book a flight to Barcelona from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Barcelona per day from 9 different airlines.

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

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

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

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

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

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

$459+ Flights from St. Louis to Barcelona

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The best prices from Lambert-St Louis to Barcelona are usually found in February or January, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from St. Louis to Barcelona

Round-trip from	$618 (Mytrip)
One-way from	$562 (Finnair)
Popular in	June
Cheapest in	February
Average price	$1,104

From Lambert-St Louis to Barcelona

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One-way flight from Lambert-St Louis to Barcelona

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High demand for flights, 23% potential price rise

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Best time to find cheap flights, 4% potential price drop

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Average for round-trip flights in December 2024

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Find flight deals from St. Louis to Barcelona

Cheapest flights from St. Louis to Barcelona
Explore the most affordable flight options available from St. Louis to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

Wed 12/256:00 amSTL - BCN

1 stop19h 40mAmerican Airlines

Wed 1/12:40 pmBCN - STL

1 stop16h 11mAmerican Airlines

Deal found 12/17

$1,655

Sat 12/213:50 pmSTL - BCN

2 stops36h 55mAir Canada

Wed 1/112:15 pmBCN - STL

2 stops33h 51mAir Canada

Deal found 12/17

$1,946

Sat 12/213:50 pmSTL - BCN

2 stops24h 55mMultiple Airlines

Mon 12/235:45 amBCN - STL

3 stops40h 36mMultiple Airlines

Deal found 12/17

$2,143

Sat 12/214:32 pmSTL - BCN

2 stops38h 33mBritish Airways

Wed 1/11:30 pmBCN - STL

1 stop14h 29mBritish Airways

Deal found 12/17

$2,525

Mon 12/231:05 pmSTL - BCN

2 stops16h 00mLufthansa

Fri 1/35:55 amBCN - STL

1 stop15h 00mLufthansa

Deal found 12/17

$2,620

Best flights from St. Louis to Barcelona
Discover carefully curated flight deals from St. Louis to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.

Wed 1/1512:15 pmSTL - BCN

3 stops18h 30mMultiple Airlines

Wed 1/226:45 amBCN - STL

3 stops35h 45mMultiple Airlines

Deal found 12/17

$618

Tue 2/41:30 pmSTL - BCN

2 stops18h 00mIberia

Tue 2/181:30 pmBCN - STL

2 stops26h 17mIberia

Deal found 12/17

$738

Tue 2/42:10 pmSTL - BCN

1 stop11h 50mBritish Airways

Tue 2/181:30 pmBCN - STL

1 stop14h 12mBritish Airways

Deal found 12/17

$769

Wed 1/151:02 pmSTL - BCN

2 stops13h 48mUnited Airlines

Wed 1/2211:00 amBCN - STL

2 stops18h 20mUnited Airlines

Deal found 12/17

$774

Wed 1/153:45 pmSTL - BCN

1 stop17h 30mLufthansa

Wed 1/226:50 amBCN - STL

1 stop14h 05mLufthansa

Deal found 12/17

$795

Mon 1/135:00 pmSTL - BCN

1 stop32h 00mDelta

Tue 1/2110:15 amBCN - STL

1 stop20h 22mDelta

Deal found 12/17

$835

Sun 1/123:50 pmSTL - BCN

2 stops35h 00mAir Canada

Wed 1/227:45 amBCN - STL

3 stops21h 00mAir Canada

Deal found 12/17

$854

Sat 2/19:20 amSTL - BCN

2 stops16h 40mAmerican Airlines

Sat 2/86:00 pmBCN - STL

1 stop26h 00mAmerican Airlines

Deal found 12/18

$873

Sat 1/1111:00 amSTL - BCN

1 stop14h 00mKLM

Mon 1/2011:10 amBCN - STL

2 stops17h 39mKLM

Deal found 12/17

$1,053

Last-minute flights from St. Louis to Barcelona
Discover last-minute flight deals from St. Louis to Barcelona. Data last updated December 18, 2024 and is based on user searches.

Mon 12/233:50 pmSTL - BCN

2 stops35h 00mMultiple Airlines

Fri 1/39:50 amBCN - STL

2 stops36h 16mMultiple Airlines

Deal found 12/17

$2,388

Mon 12/231:05 pmSTL - BCN

2 stops16h 00mLufthansa

Fri 1/35:55 amBCN - STL

1 stop15h 00mLufthansa

Deal found 12/17

$2,620

Mon 12/233:50 pmSTL - BCN

2 stops35h 00mAir Canada

Fri 1/36:50 amBCN - STL

3 stops20h 07mAir Canada

Deal found 12/17

$3,128

Wed 12/256:00 amSTL - BCN

1 stop19h 40mAmerican Airlines

Wed 1/12:40 pmBCN - STL

1 stop16h 11mAmerican Airlines

Deal found 12/17

$1,655

Thu 1/92:00 pmSTL - BCN

1 stop12h 00mBritish Airways

Fri 1/171:30 pmBCN - STL

1 stop14h 11mBritish Airways

Deal found 12/17

$879

Fri 1/106:00 pmSTL - BCN

2 stops15h 30mAmerican Airlines

Sat 1/181:30 pmBCN - STL

1 stop14h 11mAmerican Airlines

Deal found 12/17

$932

Sat 1/1111:00 amSTL - BCN

1 stop14h 00mKLM

Mon 1/2011:10 amBCN - STL

2 stops17h 39mKLM

Deal found 12/17

$1,053

Sun 1/123:50 pmSTL - BCN

2 stops35h 00mAir Canada

Wed 1/227:45 amBCN - STL

3 stops21h 00mAir Canada

Deal found 12/17

$854

Mon 1/139:25 amSTL - BCN

2 stops17h 20mIberia

Tue 1/2112:30 pmBCN - STL

2 stops27h 24mIberia

Deal found 12/17

$802

Mon 1/135:00 pmSTL - BCN

1 stop32h 00mDelta

Tue 1/2110:15 amBCN - STL

1 stop20h 22mDelta

Deal found 12/17

$835

Wed 1/1512:15 pmSTL - BCN

3 stops18h 30mMultiple Airlines

Wed 1/226:45 amBCN - STL

3 stops35h 45mMultiple Airlines

Deal found 12/17

$618

Wed 1/151:02 pmSTL - BCN

2 stops13h 48mUnited Airlines

Wed 1/2211:00 amBCN - STL

2 stops18h 20mUnited Airlines

Deal found 12/17

$774

One-way flights from St. Louis to Barcelona
Search for one-way flight options from St. Louis to Barcelona. Find affordable one-way fares based on user searches. Data last updated December 18, 2024.

Thu 3/132:21 pmSTL - BCN

1 stop15h 14mMultiple Airlines

Deal found 12/17

$562

Find flights from St. Louis to Barcelona within your budget

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 1/15

12:15 pm-1:45 pm

3 stops18h 30m

Barcelona-El Prat

Wed 1/22

6:45 am-11:30 am

3 stops35h 45m

$618

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 2/4

1:30 pm-2:30 pm

2 stops18h 00m

Barcelona-El Prat

Tue 2/18

1:30 pm-8:47 am

2 stops26h 17m

$738

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 2/4

2:10 pm-9:00 am

1 stop11h 50m

Barcelona-El Prat

Tue 2/18

1:30 pm-8:42 pm

1 stop14h 12m

$769

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 1/15

1:02 pm-9:50 am

2 stops13h 48m

Barcelona-El Prat

Wed 1/22

11:00 am-10:20 pm

2 stops18h 20m

$774

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 1/15

3:45 pm-4:15 pm

1 stop17h 30m

Barcelona-El Prat

Wed 1/22

6:50 am-1:55 pm

1 stop14h 05m

$795

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sat 3/29

6:00 am-8:00 am

1 stop20h 00m

Barcelona-El Prat

Sat 4/5

11:05 am-11:15 pm

1 stop19h 10m

$819

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 1/13

5:00 pm-8:00 am

1 stop32h 00m

Barcelona-El Prat

Tue 1/21

10:15 am-11:37 pm

1 stop20h 22m

$835

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 1/12

3:50 pm-9:50 am

2 stops35h 00m

Barcelona-El Prat

Wed 1/22

7:45 am-9:45 pm

3 stops21h 00m

$854

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 4/29

10:10 am-9:20 am

1 stop16h 10m

Barcelona-El Prat

Thu 5/8

11:35 am-11:38 pm

1 stop19h 03m

$1,039

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sat 4/12

5:18 pm-11:10 pm

2 stops22h 52m

Barcelona-El Prat

Mon 4/21

7:30 am-2:18 pm

2 stops37h 48m

$1,078

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 16 results

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

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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 Barcelona

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

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

To ensure you get the cheapest price possible for a flight from St. Louis to Barcelona, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Barcelona (average of $523). Flying from St. Louis to Barcelona in June is currently the most expensive (average of $1,098). 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 BCN?

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

Rainfall in Barcelona by month

In terms of precipitation, rainfall in Barcelona ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona when rainfall is around 0.8 in.

Temperature in Barcelona by month

If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Barcelona

Peruse reviews from past customers who have flown with Lufthansa, Air Canada and American Airlines from St. Louis to Barcelona to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,604 reviews

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

8,604 reviews

Delta

8.0

Very good

8,604 reviews

Reviews

1 / 10

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

KLM

7.8

Good

1,349 reviews

Delta

8.0

Very good

8,604 reviews

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

9,055 reviews

Delta

8.0

Very good

8,604 reviews

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

8,604 reviews

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

8,382 reviews

Delta

8.0

Very good

8,604 reviews

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

What airport do you fly from for flights from St. Louis to Barcelona?
If you book a flight to Barcelona from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Barcelona per day from 9 different airlines.
What are the cheapest airlines flying from St. Louis to Barcelona round-trip?
Iberia, at $738, was found to be the cheapest airline from St. Louis to Barcelona.Alternate airlines to your destination round-trip include British Airways and United Airlines. You may be able to fly from St. Louis to Barcelona for 24% less than the average price by searching for these airlines.
Can I find deals for flights from St. Louis to Barcelona that include hotel bookings?
Yes. In addition to deals on St. Louis to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Barcelona?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Barcelona.
Can I find deals for business class flights from St. Louis to Barcelona?
Yes. Cheapflights offers flight deals from St. Louis to Barcelona 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 Barcelona?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Barcelona (average of $523). Flying from St. Louis to Barcelona in June is currently the most expensive (average of $1,098). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Barcelona

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Top 9 airlines flying from St. Louis to Barcelona

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$490	Average$854	FlexibilityNo cancel fee	On-time75%
Lufthansa	Cheapest$530	Average$965	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$602	Average$943	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$602	Average$891	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$619	Average$1,022	FlexibilityNo cancel fee	On-time71%
Air France	Cheapest$645	Average$777	FlexibilityNo cancel fee	On-time77%
Iberia	Cheapest$697	Average$959	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$697	Average$1,037	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$724	Average$1,064	FlexibilityNo cancel fee	On-time67%

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$459+ Cheap flights from St. Louis (STL) to Barcelona

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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Barcelona with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

The best prices from Lambert-St Louis to Barcelona are usually found in February or January, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from St. Louis to Barcelona

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Barcelona

Cheapest flights from St. Louis to BarcelonaExplore the most affordable flight options available from St. Louis to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

Explore the most affordable flight options available from St. Louis to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

Find flights from St. Louis to Barcelona within your budget

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

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

Travel insights for flights from St. Louis to Barcelona

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Barcelona. Price data was last updated on December 13, 2024.

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

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

Find hourly flight availability from St. Louis to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

Rainfall in Barcelona by month

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

Temperature in Barcelona by month

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

Reviews of airlines servicing Barcelona

Peruse reviews from past customers who have flown with Lufthansa, Air Canada and American Airlines from St. Louis to Barcelona to help guide your decision. You can also see how each airline compares 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 St. Louis to Barcelona. 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 from for flights from St. Louis to Barcelona?

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

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

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

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

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

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 Barcelona

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

Top 9 airlines flying from St. Louis to Barcelona

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Cheapest flights from St. Louis to Barcelona
Explore the most affordable flight options available from St. Louis to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.