Cheap flights from St. Louis (STL) to Barcelona from $431

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — BCN
May 1 — May 81

The best prices from Lambert-St Louis to Barcelona are usually found in January or February, booked 55 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Barcelona (S37). 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 April 26, 2024.

Popular in

June

Cheapest in

January

Average price

$835

Round-trip from

$511
High demand for flights, 34% potential price rise
Best time to find cheap flights, 40% potential price drop
Average for round-trip flights in April 2024
From Lambert-St Louis to Barcelona

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

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 45% 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 56 days early can save you up to 168% on average compared to booking a flight this week. If booking 56 days before your flight isn’t an option for you, users have found flights from St. Louis to Barcelona for as little as $737 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 $2,081 for flights departing within the next 3 days.

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

Our data shows that January tends to be the cheapest month to fly to Barcelona from St. Louis. Users have commonly found prices around $1,096 for the month, but tickets can be as low as $527. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from St. Louis to Barcelona (STL - BCN)?

It’s optimal to fly from St. Louis to Barcelona in the morning. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the afternoon.

Cheap United Airlines flights from St. Louis to Barcelona

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Barcelona. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Take a peek at the cheapest United Airlines flights we've detected traveling from St. Louis to Barcelona. Be sure to come back soon if the deals available don't appeal to you at this time.
Wed 8/211:15 pmSTL - BCN
1 stop12h 05mUnited Airlines
Thu 8/2912:25 pmBCN - STL
2 stops28h 42mUnited Airlines
Deal found 4/25$777
Wed 8/219:30 amSTL - BCN
2 stops15h 50mUnited Airlines
Thu 8/2912:25 pmBCN - STL
2 stops28h 42mUnited Airlines
Deal found 4/25$782
Tue 8/2012:15 pmSTL - BCN
1 stop13h 45mUnited Airlines
Fri 8/3012:15 pmBCN - STL
2 stops34h 50mUnited Airlines
Deal found 4/25$783
Tue 8/206:34 amSTL - BCN
1 stop23h 11mUnited Airlines
Fri 8/3012:15 pmBCN - STL
1 stop34h 06mUnited Airlines
Deal found 4/26$784
Tue 8/2011:10 amSTL - BCN
2 stops14h 50mUnited Airlines
Fri 8/3012:15 pmBCN - STL
2 stops34h 50mUnited Airlines
Deal found 4/25$788
Tue 8/208:05 amSTL - BCN
2 stops18h 35mUnited Airlines
Fri 8/3012:25 pmBCN - STL
1 stop15h 40mUnited Airlines
Deal found 4/26$789
Wed 8/78:58 amSTL - BCN
2 stops16h 22mUnited Airlines
Fri 8/1612:15 pmBCN - STL
2 stops29h 04mUnited Airlines
Deal found 4/25$1,025
Thu 5/163:15 pmSTL - BCN
1 stop14h 30mUnited Airlines
Tue 7/1611:15 amBCN - STL
2 stops29h 46mUnited Airlines
Deal found 4/25$1,172
Wed 5/2911:38 amSTL - BCN
2 stops14h 22mUnited Airlines
Sun 6/96:50 amBCN - STL
1 stop13h 40mUnited Airlines
Deal found 4/25$1,349

Cheap Air Canada flights from St. Louis to Barcelona

Explore cheap flight options specifically provided by Air Canada for the route between St. Louis and Barcelona. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Some of the best deals we've found on Air Canada flights traveling from St. Louis to Barcelona. Ensure the flight price, dates, time, and airline match your criteria before you book.
Wed 8/2112:00 pmSTL - BCN
1 stop14h 40mAir Canada
Thu 8/2912:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 4/25$785
Sun 8/1110:10 amSTL - BCN
2 stops16h 30mAir Canada
Tue 8/2012:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 4/24$791
Sun 8/1110:10 amSTL - BCN
2 stops16h 30mAir Canada
Tue 8/2012:25 pmBCN - STL
2 stops34h 24mAir Canada
Deal found 4/24$794
Tue 8/2010:10 amSTL - BCN
2 stops16h 30mAir Canada
Fri 8/3012:25 pmBCN - STL
2 stops14h 36mAir Canada
Deal found 4/26$797
Fri 10/1112:00 pmSTL - BCN
1 stop14h 40mAir Canada
Wed 10/2312:25 pmBCN - STL
2 stops39h 40mAir Canada
Deal found 4/26$841
Sat 10/1912:00 pmSTL - BCN
1 stop14h 40mAir Canada
Sat 10/2612:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 4/25$885
Sat 10/1910:10 amSTL - BCN
2 stops16h 30mAir Canada
Sat 10/2612:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 4/25$891
Sat 10/1910:10 amSTL - BCN
2 stops16h 30mAir Canada
Sat 10/2612:25 pmBCN - STL
2 stops14h 35mAir Canada
Deal found 4/25$897
Fri 8/1612:00 pmSTL - BCN
1 stop14h 40mAir Canada
Sun 8/2512:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 4/25$926

Cheap St. Louis to Barcelona flights in April & May 2024

Find cheap flight options from St. Louis to Barcelona specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Prices were last updated on April 26, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Barcelona in April and May 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/282:35 pmSTL - BCN
3 stops42h 15mMultiple Airlines
Mon 6/33:55 pmBCN - STL
3 stops52h 10mMultiple Airlines
Deal found 4/26$846
Tue 5/282:35 pmSTL - BCN
2 stops40h 30mMultiple Airlines
Mon 6/33:55 pmBCN - STL
3 stops52h 10mMultiple Airlines
Deal found 4/26$852
Tue 4/302:35 pmSTL - BCN
2 stops22h 20mMultiple Airlines
Tue 5/147:25 amBCN - STL
2 stops40h 30mMultiple Airlines
Deal found 4/25$932
Tue 5/212:35 pmSTL - BCN
3 stops34h 25mMultiple Airlines
Tue 6/46:40 amBCN - STL
3 stops55h 28mMultiple Airlines
Deal found 4/25$954
Tue 5/282:35 pmSTL - BCN
2 stops40h 30mMultiple Airlines
Mon 6/37:00 amBCN - STL
2 stops31h 08mMultiple Airlines
Deal found 4/26$958
Tue 5/282:35 pmSTL - BCN
3 stops34h 35mMultiple Airlines
Mon 6/33:55 pmBCN - STL
3 stops49h 50mMultiple Airlines
Deal found 4/25$974
Sat 4/2711:39 amSTL - BCN
2 stops40h 01mMultiple Airlines
Sun 5/57:25 amBCN - STL
3 stops57h 19mMultiple Airlines
Deal found 4/25$988
Tue 4/302:35 pmSTL - BCN
2 stops22h 20mMultiple Airlines
Tue 5/147:25 amBCN - STL
3 stops33h 22mMultiple Airlines
Deal found 4/25$989
Tue 5/212:35 pmSTL - BCN
2 stops18h 35mMultiple Airlines
Tue 6/46:40 amBCN - STL
3 stops55h 28mMultiple Airlines
Deal found 4/25$990

St. Louis to Barcelona 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Barcelona in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Barcelona in April and May 2024. More deals are always being added, so be sure to check back regularly.
Mon 11/255:40 pmSTL - BCN
1 stop32h 20mMultiple Airlines
Thu 12/59:15 amBCN - STL
2 stops31h 38mMultiple Airlines
Deal found 4/25$674
Mon 11/258:00 amSTL - BCN
2 stops16h 35mAir Canada
Thu 12/59:15 amBCN - STL
2 stops31h 38mAir Canada
Deal found 4/25$684
Sun 11/244:10 pmSTL - BCN
2 stops32h 25mAir Canada
Tue 12/39:15 amBCN - STL
2 stops31h 38mAir Canada
Deal found 4/25$686
Sun 11/241:38 pmSTL - BCN
2 stops14h 57mAmerican Airlines
Wed 12/41:30 pmBCN - STL
1 stop13h 43mAmerican Airlines
Deal found 4/25$687
Sun 11/246:45 amSTL - BCN
1 stop19h 15mAmerican Airlines
Wed 12/41:30 pmBCN - STL
1 stop13h 43mAmerican Airlines
Deal found 4/25$689
Sun 11/244:10 pmSTL - BCN
2 stops32h 25mAir Canada
Wed 12/42:00 pmBCN - STL
2 stops26h 53mAir Canada
Deal found 4/25$691
Mon 11/2510:00 amSTL - BCN
2 stops15h 00mKLM
Wed 12/410:15 amBCN - STL
2 stops17h 24mKLM
Deal found 4/25$693
Mon 11/2510:00 amSTL - BCN
1 stop15h 40mDelta
Wed 12/410:55 amBCN - STL
1 stop28h 56mDelta
Deal found 4/25$694
Sun 11/245:34 amSTL - BCN
1 stop24h 31mMultiple Airlines
Tue 12/36:45 pmBCN - STL
1 stop21h 30mMultiple Airlines
Deal found 4/25$695

St. Louis to Barcelona flights leaving soon

Find last-minute flight options from St. Louis to Barcelona for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Users seeking a last-minute flight from St. Louis to Barcelona should consider booking one of these fares. It's wise to confirm all flight details are correct before booking.
Sun 5/53:29 pmSTL - BCN
3 stops49h 36mMultiple Airlines
Mon 5/139:45 pmBCN - STL
3 stops50h 10mMultiple Airlines
Deal found 4/25$1,116
Sun 5/53:29 pmSTL - BCN
3 stops49h 36mMultiple Airlines
Mon 5/139:10 pmBCN - STL
2 stops50h 45mMultiple Airlines
Deal found 4/25$1,145
Sun 5/53:29 pmSTL - BCN
3 stops49h 36mMultiple Airlines
Mon 5/1310:55 pmBCN - STL
3 stops42h 23mMultiple Airlines
Deal found 4/26$1,174
Sun 5/511:23 amSTL - BCN
2 stops23h 07mMultiple Airlines
Mon 5/1310:55 pmBCN - STL
3 stops42h 23mMultiple Airlines
Deal found 4/26$1,277
Sun 5/511:23 amSTL - BCN
2 stops23h 07mMultiple Airlines
Mon 5/139:10 pmBCN - STL
2 stops50h 45mMultiple Airlines
Deal found 4/25$1,289
Sun 5/511:23 amSTL - BCN
2 stops23h 07mMultiple Airlines
Mon 5/139:10 pmBCN - STL
2 stops50h 45mMultiple Airlines
Deal found 4/26$1,320
Sun 5/511:00 amSTL - BCN
1 stop15h 40mUnited Airlines
Mon 5/1312:25 pmBCN - STL
2 stops28h 49mUnited Airlines
Deal found 4/26$1,823
Sun 5/511:00 amSTL - BCN
1 stop15h 40mAir Canada
Mon 5/1312:25 pmBCN - STL
1 stop15h 40mAir Canada
Deal found 4/25$1,835
Sun 5/512:20 pmSTL - BCN
1 stop15h 10mIberia
Mon 5/139:15 amBCN - STL
2 stops17h 31mIberia
Deal found 4/25$1,836

One-way flights to Barcelona from St. Louis

Search for one-way flight options from St. Louis to Barcelona. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
If you're seeking multiple options on one-way flights from St. Louis to Barcelona, be sure to check out these deals, which are updated often. Those seeking round-trip flights from St. Louis to Barcelona should utilize the search form at the the top of the page.
Wed 7/109:20 pmSTL - BCN
2 stops35h 15mMultiple Airlines
Deal found 4/25$431
Tue 5/212:35 pmSTL - BCN
3 stops34h 25mMultiple Airlines
Deal found 4/25$446
Sat 10/1911:39 amSTL - BCN
2 stops41h 41mMultiple Airlines
Deal found 4/25$477
Tue 5/212:35 pmSTL - BCN
2 stops20h 10mMultiple Airlines
Deal found 4/25$480
Sat 6/19:29 pmSTL - BCN
2 stops39h 51mMultiple Airlines
Deal found 4/25$518
Sun 6/27:44 pmSTL - BCN
2 stops37h 26mMultiple Airlines
Deal found 4/25$524
Sun 6/27:30 pmSTL - BCN
3 stops37h 10mMultiple Airlines
Deal found 4/25$549
Wed 5/87:51 pmSTL - BCN
2 stops57h 34mMultiple Airlines
Deal found 4/26$587
Sat 6/15:15 pmSTL - BCN
3 stops56h 55mMultiple Airlines
Deal found 4/25$601

Find flights from St. Louis to Barcelona within your budget

Customize your flight search to find flights from St. Louis to Barcelona 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 3,068,117 searches. Data last updated April 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$777 - $1,321

Route

Depart

Return

Price

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Wed 8/21

1 stop12h 05m

Barcelona-El Prat

Thu 8/29

2 stops28h 42m

$777

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Wed 8/21

2 stops15h 50m

Barcelona-El Prat

Thu 8/29

2 stops28h 42m

$782

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Wed 8/21

1 stop14h 40m

Barcelona-El Prat

Thu 8/29

1 stop15h 40m

$785

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Fri 8/9

1 stop32h 16m

Barcelona-El Prat

Fri 8/23

1 stop34h 06m

$836

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Fri 10/4

1 stop18h 30m

Barcelona-El Prat

Wed 10/16

1 stop21h 23m

$850

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Sat 10/5

1 stop33h 09m

Barcelona-El Prat

Sat 10/12

2 stops30h 19m

$898

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Sat 9/14

1 stop12h 05m

Barcelona-El Prat

Sat 12/14

1 stop19h 40m

$1,066

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Wed 7/3

1 stop19h 16m

Barcelona-El Prat

Wed 7/24

1 stop13h 16m

$1,242

Lambert-St LouisBarcelona-El Prat

STL - BCN

STLBCN

Lambert-St Louis

Mon 6/10

2 stops18h 08m

Barcelona-El Prat

Sun 6/23

2 stops15h 13m

$1,321

Flights are sorted by cheapest first

Deals found on 4/25

When is the best time to 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 January 28, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to Barcelona, you should look to book at least 55 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.
Search Deals

When is the cheapest time to fly from St. Louis to Barcelona?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Barcelona. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Barcelona flight should consider departing on Tuesday mornings 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.
Search Deals

Average price of flights to Barcelona by month

Plan your trip from St. Louis to Barcelona by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Barcelona is currently $513 while a round-trip flight costs $951. Price data was last updated on April 21, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Barcelona (average of $511). Flying from St. Louis to Barcelona in June is currently the most expensive (average of $1,131). 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.

January

$511

February

$561

March

$681

April

$657

May

$789

June

$1,131

July

$1,046

August

$801

September

$835

October

$703

November

$564

December

$585

Temperature and rainfall in Barcelona by month

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

BCN

Temperature

48.2 - 75.2 °F

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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 Barcelona. Reviews last updated April 26, 2024.
Peruse reviews from past customers who have flown with United Airlines, 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.
8.1
Very good
10,966 reviews

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

8.1
Very good
10,966 reviews
8.1
Very good
10,966 reviews

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.9
Good
1,626 reviews
8.1
Very good
10,966 reviews

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.4
Good
11,228 reviews
8.1
Very good
10,966 reviews

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.3
Good
14,889 reviews
8.1
Very good
10,966 reviews

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.1
Good
2,768 reviews
8.1
Very good
10,966 reviews

Boarding

8.2

Entertainment

8.0

Overall

8.1

Comfort

7.9

Crew

8.6

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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?

    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 flights from St. Louis to Barcelona for under $800 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Barcelona for under $800. The cheapest flight booked recently is on United Airlines for just $777, but on average you can expect to pay $821.

  • Are there last-minute flights available from St. Louis to Barcelona for under $1,200?

    There are currently 9+ open flights from St. Louis to Barcelona within the next 7 days for less than $1,200.

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

    United Airlines, at $777, was found to be the cheapest airline from St. Louis to Barcelona.Alternate airlines to your destination round-trip include Air Canada and American Airlines. You may be able to fly from St. Louis to Barcelona for 29% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from St. Louis to Barcelona are British Airways ($751), KLM ($837), and Iberia ($1,102).

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

  • What does STL to BCN mean?

    STL stands for Lambert-St Louis Airport, while BCN stands for Barcelona-El Prat Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Girona Costa Brava Airport (GRO), Reus Airport (REU), La Seu d'Urgell Aeroport De La Seu Airport (LEU), Lleida-Alguaire Airport (ILD) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from St. Louis to Barcelona that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Barcelona flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Barcelona with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Barcelona flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by 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.

  • Can I find deals for flights from St. Louis to Barcelona that allow pets onboard?

    Many airlines flying from St. Louis to Barcelona offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Barcelona?

    Yes, you can often find last-minute deals on St. Louis to Barcelona flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Barcelona flight deals updated?

    The St. Louis to Barcelona flight deals you see on this page were last updated on 4/25.

See more FAQs

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

Discover the top 9 airlines that operate flights from St. Louis to Barcelona. 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 3,068,117 searches. Data last updated April 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$544Average$875FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest$598Average$898FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest$624Average$886FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$626Average$1,113FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest$631Average$987FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest$666Average$901FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest$692Average$1,374FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest$715Average$1,129FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Air CanadaCheapest$732Average$1,150FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Search flights from St. Louis to Barcelona by cabin class

Find flights from St. Louis to Barcelona, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Barcelona?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. Louis to Barcelona. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Barcelona?

Cheapflights helps you find that perfect flight to Barcelona from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to Barcelona with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis to Barcelona flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from St. Louis to Barcelona become cheaper?

Of course! You can now track prices for flights from St. Louis to Barcelona and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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.