HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$319+ Cheap flights from Buffalo (BUF) 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — BCN
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo to Barcelona 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 Buffalo to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) 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 September 16, 2025.

Round-trip from

$505
(AirNGo)

One-way from

$319
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,058
From Buffalo to Barcelona
Search Deals
One-way flight from Buffalo to Barcelona
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($309 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Buffalo to Barcelona

Cheapest flights from Buffalo to Barcelona
Explore the most affordable flight options available from Buffalo to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This AirNGo deal was found by Cheapflights users on 9/15. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:10 amBUF - BCN
1 stop18h 45mVirgin Atlantic
Wed 10/89:30 amBCN - BUF
2 stops31h 01mVirgin Atlantic
Deal found 9/15$505
This AirNGo deal was found by Cheapflights users on 9/15. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/227:05 amBUF - BCN
2 stops18h 45mAir Canada
Wed 10/81:15 pmBCN - BUF
2 stops33h 38mAir Canada
Deal found 9/15$511
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 10/132:50 pmBUF - BCN
2 stops35h 00mUnited Airlines
Tue 10/2112:10 pmBCN - BUF
2 stops34h 43mUnited Airlines
Deal found 9/14$535
This KLM deal was found by Cheapflights users on 9/16. 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.
Tue 9/307:08 pmBUF - BCN
1 stop30h 07mKLM
Fri 10/109:00 amBCN - BUF
1 stop20h 56mKLM
Deal found 9/16$547
This KLM deal was found by Cheapflights users on 9/14. 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.
Tue 9/303:51 pmBUF - BCN
1 stop32h 09mMultiple Airlines
Fri 10/109:00 amBCN - BUF
1 stop12h 10mMultiple Airlines
Deal found 9/14$548
This Air France deal was found by Cheapflights users on 9/15. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:00 amBUF - BCN
1 stop17h 00mMultiple Airlines
Wed 10/2211:35 amBCN - BUF
1 stop18h 04mMultiple Airlines
Deal found 9/15$553
This Delta deal was found by Cheapflights users on 9/15. 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.
Tue 9/306:15 amBUF - BCN
2 stops17h 45mDelta
Fri 10/109:00 amBCN - BUF
1 stop20h 56mDelta
Deal found 9/15$557
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/216:30 amBUF - BCN
2 stops19h 20mUnited Airlines
Fri 10/313:05 pmBCN - BUF
1 stop34h 55mUnited Airlines
Deal found 9/15$558
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/211:57 pmBUF - BCN
1 stop17h 18mUnited Airlines
Thu 10/306:50 amBCN - BUF
2 stops16h 56mUnited Airlines
Deal found 9/15$562
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 10/197:45 pmBUF - BCN
1 stop30h 35mUnited Airlines
Fri 10/313:05 pmBCN - BUF
1 stop34h 55mUnited Airlines
Deal found 9/15$564

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo 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 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Buffalo to Barcelona that are best for you.

Fly from

Buffalo

Fly to

Barcelona

Route

Depart

Return

Price

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Mon 10/13

2:50 pm-7:50 am

2 stops35h 00m

Barcelona-El Prat

Tue 10/21

12:10 pm-4:53 pm

2 stops34h 43m

$535

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Tue 9/30

7:08 pm-7:15 am

1 stop30h 07m

Barcelona-El Prat

Fri 10/10

9:00 am-11:56 pm

1 stop20h 56m

$547

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Tue 9/30

3:51 pm-6:00 am

1 stop32h 09m

Barcelona-El Prat

Fri 10/10

9:00 am-3:10 pm

1 stop12h 10m

$548

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Tue 9/30

6:15 am-6:00 am

2 stops17h 45m

Barcelona-El Prat

Fri 10/10

9:00 am-11:56 pm

1 stop20h 56m

$557

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Sun 10/19

6:30 am-7:50 am

2 stops19h 20m

Barcelona-El Prat

Fri 10/31

3:05 pm-9:00 pm

1 stop34h 55m

$558

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Tue 10/21

6:30 am-7:50 am

2 stops19h 20m

Barcelona-El Prat

Fri 10/31

3:05 pm-9:00 pm

1 stop34h 55m

$558

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Tue 10/21

1:57 pm-1:15 pm

1 stop17h 18m

Barcelona-El Prat

Thu 10/30

6:50 am-6:46 pm

2 stops16h 56m

$562

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Mon 10/20

4:08 pm-9:00 am

1 stop10h 52m

Barcelona-El Prat

Thu 10/30

6:50 am-6:46 pm

2 stops16h 56m

$562

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Thu 10/30

1:52 pm-8:35 am

2 stops37h 43m

Barcelona-El Prat

Thu 11/6

6:50 am-10:58 pm

2 stops22h 08m

$583

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Sat 11/15

7:12 pm-12:50 am

3 stops47h 38m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 17 results
1
2

Best time to book a flight from Buffalo to Barcelona

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

What is the cheapest month to book a flight from Buffalo to Barcelona?

Currently, January is the cheapest month in which you can book a flight from Buffalo to Barcelona (average of $523). Flying from Buffalo to Barcelona in June is currently the most expensive (average of $1,061). 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 BUF to BCN?

Find hourly flight availability from Buffalo 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 September 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 20% on flights from Buffalo to Barcelona by exploring options for tickets in the morning.

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 September 16, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and British Airways from Buffalo to Barcelona. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,363 reviews
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Buffalo 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 Buffalo to Barcelona?

    If you book a flight to Barcelona from Buffalo, you will be flying from Buffalo, which is the city’s only airport. Buffalo (BUF) is located 8.3 mi from the center of Buffalo. There are 0 flights from Buffalo to Barcelona per day from 3 different airlines.

  • How long is the flight from Buffalo to Barcelona?

    There are many flights that can get you from Buffalo to Barcelona in 17h 45m. Fly via United Airlines, KLM, or Delta to get the fastest option. Airlines will cover a distance of 3970 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Buffalo to Barcelona round-trip?

    Our cheapest airline available from Buffalo to Barcelona is United Airlines. Our recent data shows that you can find tickets from as low as $582 on this airline. Additional options worth looking into are British Airways and American Airlines, starting at $697 and $807 round-trip. United Airlines is currently priced 38% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Buffalo to Barcelona one-way?

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as $376. However, be on the lookout for offers from Lufthansa and TAP AIR PORTUGAL, as they are both options that can get you from Buffalo to Barcelona for a low price.

  • Can I find deals for flights from Buffalo to Barcelona that include hotel bookings?

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

  • How can I find direct flights from Buffalo to Barcelona?

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

  • Can I find deals for business class flights from Buffalo to Barcelona?

    Yes. Cheapflights offers flight deals from Buffalo 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 Buffalo to Barcelona?

    Currently, January is the cheapest month in which you can book a flight from Buffalo to Barcelona (average of $523). Flying from Buffalo to Barcelona in June is currently the most expensive (average of $1,061). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Buffalo to Barcelona

Discover the top 3 airlines that operate flights from Buffalo 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 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$582Average$782FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$697Average$1,077FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$807Average$1,058FlexibilityNo cancel feeOn-time71%

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.