$302+ Cheap flights from St. Louis (STL) to Barcelona-El Prat (BCN)
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 2/3. 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-El Prat 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.The best prices from Lambert-St Louis to Barcelona-El Prat 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-El Prat
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Barcelona-El Prat (BCN). 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 21, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $590 (American Airlines) |
One-way from | $303 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $773 |
Find flight deals from St. Louis to Barcelona-El Prat
Cheapest flights from St. Louis to Barcelona-El PratExplore the most affordable flight options available from St. Louis to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
Explore the most affordable flight options available from St. Louis to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
This United Airlines deal was found by Cheapflights users on 1/20. 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.
This Finnair deal was found by Cheapflights users on 1/20. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Booking.com deal was found by Cheapflights users on 1/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 1/20. 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.
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Aeromexico deal was found by Cheapflights users on 1/20. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This eDestinos deal was found by Cheapflights users on 1/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 1/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/20. 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.
This KLM deal was found by Cheapflights users on 1/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 1/20. 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.
Find flights from St. Louis to Barcelona-El Prat within your budget
Customize your flight search to find flights from St. Louis to Barcelona-El Prat 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 21, 2025.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Tue 4/1
3:40 pm-7:50 am
2 stops33h 10m
Barcelona-El Prat
Tue 4/8
12:15 pm-12:20 pm
2 stops31h 05m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Sat 3/15
5:33 pm-8:50 am
2 stops33h 17m
Barcelona-El Prat
Tue 3/25
11:15 am-2:23 pm
2 stops33h 08m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Tue 4/1
5:55 am-10:30 am
1 stop21h 35m
Barcelona-El Prat
Tue 4/8
10:45 am-6:01 pm
1 stop14h 16m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Sun 2/2
6:00 am-9:00 am
1 stop20h 00m
Barcelona-El Prat
Tue 2/18
11:00 am-11:40 pm
1 stop19h 40m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Sun 2/2
5:15 pm-9:50 am
2 stops33h 35m
Barcelona-El Prat
Tue 2/18
1:55 pm-3:06 pm
2 stops32h 11m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Wed 2/12
3:45 pm-7:45 pm
1 stop21h 00m
Barcelona-El Prat
Wed 2/19
6:50 am-1:55 pm
1 stop14h 05m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Sat 3/8
4:40 pm-7:40 am
1 stop32h 00m
Barcelona-El Prat
Thu 3/20
9:45 am-6:05 pm
1 stop14h 20m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Mon 3/3
7:15 am-8:40 am
1 stop18h 25m
Barcelona-El Prat
Fri 3/21
12:15 pm-9:36 am
2 stops27h 21m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Mon 3/31
12:01 pm-10:10 am
1 stop15h 09m
Barcelona-El Prat
Wed 4/23
12:15 pm-10:29 pm
1 stop17h 14m
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Mon 3/3
12:52 pm-8:40 am
1 stop12h 48m
Barcelona-El Prat
Fri 3/21
9:45 am-8:18 pm
1 stop16h 33m
Compare providers for flights from St. Louis to Barcelona-El Prat
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 Barcelona-El Prat in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on St. Louis-Barcelona-El Prat Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Barcelona-El Prat Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Barcelona-El Prat Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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-Barcelona-El Prat Airport 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 Barcelona-El Prat
Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from St. Louis with our price prediction graph.
Travel insights for flights from St. Louis to Barcelona-El Prat
Get recent, data-driven insights about flights from St. Louis to Barcelona-El Prat including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from St. Louis to Barcelona-El Prat Airport?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Barcelona-El Prat. Price data was last updated on January 17, 2025.
The best time to book flights from St. Louis to Barcelona-El Prat Airport is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from St. Louis to Barcelona-El Prat Airport?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Barcelona-El Prat Airport (average of $523). Flying from St. Louis to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,097). 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?
Find hourly flight availability from St. Louis to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.
It’s optimal to fly from St. Louis to Barcelona-El Prat Airport 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-El Prat by month
Plan your trip to Barcelona-El Prat by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Barcelona-El Prat Airport 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-El Prat Airport when rainfall is around 0.8 in.
Temperature in Barcelona-El Prat by month
Plan your trip to Barcelona-El Prat by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Barcelona-El Prat Airport, 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-El Prat
Get insights into the airlines that provide service to Barcelona-El Prat. 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-El Prat. Reviews last updated January 21, 2025.
Overall
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Comfort
Food
Boarding
Entertainment
Reviews
I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.
Overall
Crew
Comfort
Food
Boarding
Entertainment
Reviews
I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.
Overall
Crew
Comfort
Food
Boarding
Entertainment
Reviews
I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.
Overall
Crew
Comfort
Food
Boarding
Entertainment
Reviews
I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.
Overall