HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$434+ Cheap flights from Buffalo (BUF) to Barcelona

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — BCN
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
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 November 10, 2025.

Round-trip from

$434
(Delta)

Popular in

May

Cheapest in

January

Average price

$648
From Buffalo to Barcelona
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($252 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 10, 2025.

This KLM deal was found by Cheapflights users on 11/9. 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.
Wed 12/245:52 pmBUF - BCN
2 stops15h 08mMultiple Airlines
Wed 12/319:30 amBCN - BUF
1 stop20h 07mMultiple Airlines
Deal found 11/9$1,053
This Delta deal was found by Cheapflights users on 11/9. 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.
Wed 12/243:49 pmBUF - BCN
2 stops16h 11mDelta
Wed 12/319:30 amBCN - BUF
2 stops19h 03mDelta
Deal found 11/9$1,058
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/237:48 pmBUF - BCN
2 stops36h 27mUnited Airlines
Tue 12/306:45 amBCN - BUF
2 stops20h 09mUnited Airlines
Deal found 11/8$1,068
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Wed 12/242:50 pmBUF - BCN
2 stops17h 25mUnited Airlines
Wed 12/311:35 pmBCN - BUF
2 stops33h 10mUnited Airlines
Deal found 11/9$1,120
This Air France deal was found by Cheapflights users on 11/8. 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.
Tue 12/2312:07 pmBUF - BCN
1 stop13h 08mMultiple Airlines
Tue 12/3010:15 amBCN - BUF
1 stop19h 28mMultiple Airlines
Deal found 11/8$1,189
This Delta deal was found by Cheapflights users on 11/8. 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 12/236:00 amBUF - BCN
1 stop19h 15mDelta
Tue 12/3010:55 amBCN - BUF
2 stops18h 33mDelta
Deal found 11/8$1,199
This Ovago deal was found by Cheapflights users on 11/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:30 pmBUF - BCN
2 stops29h 15mTAP AIR PORTUGAL
Sat 11/156:45 amBCN - BUF
2 stops19h 17mTAP AIR PORTUGAL
Deal found 11/9$1,311
This KLM deal was found by Cheapflights users on 11/9. 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.
Wed 12/243:49 pmBUF - BCN
1 stop10h 11mKLM
Wed 12/319:30 amBCN - BUF
1 stop20h 07mKLM
Deal found 11/9$1,385
This Priceline deal was found by Cheapflights users on 11/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:27 pmBUF - BCN
1 stop11h 33mMultiple Airlines
Sat 11/156:45 amBCN - BUF
2 stops19h 17mMultiple Airlines
Deal found 11/9$1,627
This oojo deal was found by Cheapflights users on 11/9. 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.
Sun 12/216:29 pmBUF - BCN
2 stops15h 36mBritish Airways
Fri 1/27:15 pmBCN - BUF
2 stops28h 44mBritish Airways
Deal found 11/9$2,014

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 November 10, 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

Wed 1/21

3:38 pm-8:00 am

1 stop10h 22m

Barcelona-El Prat

Tue 2/3

10:15 am-7:03 pm

1 stop14h 48m

$434

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Sun 1/18

3:38 pm-8:00 am

1 stop10h 22m

Barcelona-El Prat

Thu 1/29

10:15 am-7:03 pm

1 stop14h 48m

$434

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Tue 1/27

12:14 pm-8:40 am

1 stop14h 26m

Barcelona-El Prat

Fri 2/6

10:55 am-1:11 pm

1 stop32h 16m

$434

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Mon 1/19

11:51 am-8:50 am

2 stops14h 59m

Barcelona-El Prat

Thu 1/29

10:15 am-7:03 pm

1 stop14h 48m

$452

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Mon 1/19

11:51 am-8:50 am

2 stops14h 59m

Barcelona-El Prat

Tue 1/27

10:15 am-7:03 pm

1 stop14h 48m

$452

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Mon 1/19

11:51 am-8:50 am

2 stops14h 59m

Barcelona-El Prat

Tue 1/27

10:15 am-10:59 pm

2 stops18h 44m

$457

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Mon 1/19

11:51 am-8:50 am

2 stops14h 59m

Barcelona-El Prat

Thu 1/29

10:15 am-10:59 pm

2 stops18h 44m

$457

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Wed 1/28

7:00 am-8:00 am

1 stop19h 00m

Barcelona-El Prat

Sun 2/8

10:55 am-11:28 pm

1 stop18h 33m

$459

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Thu 1/22

7:45 pm-8:00 am

1 stop30h 15m

Barcelona-El Prat

Tue 2/3

10:15 am-7:03 pm

1 stop14h 48m

$459

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

Thu 1/29

12:14 pm-8:40 am

1 stop14h 26m

Barcelona-El Prat

Wed 2/11

10:55 am-11:19 am

1 stop30h 24m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 16 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, December is the cheapest month in which you can book a flight from Buffalo to Barcelona (average of $458). Flying from Buffalo to Barcelona in April is currently the most expensive (average of $851). 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 November 10, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from Buffalo to Barcelona by exploring options for tickets in the morning.

How much does it cost to fly round-trip from Buffalo to Barcelona?

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 November 10, 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
9,011 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,011 reviews
United Airlines
7.4
Good
9,011 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,047 reviews
United Airlines
7.4
Good
9,011 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,508 reviews
United Airlines
7.4
Good
9,011 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 10h 22m. Fly via Delta to get the fastest option. Airlines will cover a distance of 3970 mi.

  • 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 $559 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 39% 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 TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $950. However, be on the lookout for offers from Delta and KLM, 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, December is the cheapest month in which you can book a flight from Buffalo to Barcelona (average of $458). Flying from Buffalo to Barcelona in April is currently the most expensive (average of $851). 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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$559Average$774FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$697Average$904FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$807Average$955FlexibilityNo 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.