HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$348+ 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — BCN
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
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 julio 3, 2025.

Round-trip from

$565
(United Airlines)

One-way from

$348
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,332
From Buffalo to Barcelona
Search Deals
One-way flight from Buffalo to Barcelona
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($379 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 julio 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/1. 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.
sáb. 11/17:30 pmBUF - BCN
2 stops33h 05mUnited Airlines
mié. 11/191:35 pmBCN - BUF
2 stops33h 03mUnited Airlines
Deal found 7/1$565
This British Airways deal was found by Cheapflights users on 7/3. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/911:11 amBUF - BCN
1 stop17h 19mBritish Airways
mié. 10/1510:45 amBCN - BUF
1 stop18h 50mBritish Airways
Deal found 7/3$633
This American Airlines deal was found by Cheapflights users on 7/3. 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.
jue. 10/93:21 pmBUF - BCN
2 stops13h 44mAmerican Airlines
mié. 10/1510:45 amBCN - BUF
1 stop18h 50mAmerican Airlines
Deal found 7/3$637
This KLM deal was found by Cheapflights users on 7/1. 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.
dom. 8/2412:02 pmBUF - BCN
1 stop15h 18mMultiple Airlines
sáb. 9/69:00 amBCN - BUF
1 stop12h 15mMultiple Airlines
Deal found 7/1$688
This Virgin Atlantic deal was found by Cheapflights users on 7/1. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/2412:02 pmBUF - BCN
1 stop15h 18mVirgin Atlantic
sáb. 9/69:30 amBCN - BUF
2 stops19h 29mVirgin Atlantic
Deal found 7/1$692
This Delta deal was found by Cheapflights users on 7/2. 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.
dom. 8/36:30 amBUF - BCN
2 stops18h 45mDelta
mar. 8/1911:05 amBCN - BUF
2 stops18h 52mDelta
Deal found 7/2$714
This Cheapflightsfares deal was found by Cheapflights users on 7/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/287:22 amBUF - BCN
2 stops21h 13mTAP AIR PORTUGAL
mié. 9/36:00 amBCN - BUF
2 stops32h 53mTAP AIR PORTUGAL
Deal found 7/1$737
This Air Canada deal was found by Cheapflights users on 7/3. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/97:07 amBUF - BCN
3 stops18h 43mAir Canada
mié. 10/156:50 amBCN - BUF
3 stops20h 23mAir Canada
Deal found 7/3$894
This KLM deal was found by Cheapflights users on 7/1. 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.
jue. 8/286:00 amBUF - BCN
1 stop21h 20mKLM
mié. 9/311:35 amBCN - BUF
1 stop18h 22mKLM
Deal found 7/1$978

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 julio 3, 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

sáb. 11/1

7:30 pm-9:35 am

2 stops33h 05m

Barcelona-El Prat

mié. 11/19

1:35 pm-4:38 pm

2 stops33h 03m

$565

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

jue. 10/9

11:11 am-10:30 am

1 stop17h 19m

Barcelona-El Prat

mié. 10/15

10:45 am-11:35 pm

1 stop18h 50m

$633

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

jue. 10/9

3:21 pm-11:05 am

2 stops13h 44m

Barcelona-El Prat

mié. 10/15

10:45 am-11:35 pm

1 stop18h 50m

$637

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

dom. 8/24

12:02 pm-9:20 am

1 stop15h 18m

Barcelona-El Prat

sáb. 9/6

9:00 am-3:15 pm

1 stop12h 15m

$688

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

dom. 8/24

12:02 pm-9:20 am

1 stop15h 18m

Barcelona-El Prat

sáb. 9/6

9:30 am-10:59 pm

2 stops19h 29m

$692

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

dom. 8/3

6:30 am-7:15 am

2 stops18h 45m

Barcelona-El Prat

mar. 8/19

11:05 am-11:57 pm

2 stops18h 52m

$714

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

jue. 8/28

7:22 am-10:35 am

2 stops21h 13m

Barcelona-El Prat

mié. 9/3

6:00 am-8:53 am

2 stops32h 53m

$737

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

jue. 10/9

7:07 am-7:50 am

3 stops18h 43m

Barcelona-El Prat

mié. 10/15

6:50 am-9:13 pm

3 stops20h 23m

$894

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

jue. 8/28

6:00 am-9:20 am

1 stop21h 20m

Barcelona-El Prat

mié. 9/3

11:35 am-11:57 pm

1 stop18h 22m

$978

BuffaloBarcelona

BUF - BCN

BUFBCN

Buffalo

jue. 7/24

9:07 pm-12:05 am

2 stops44h 58m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 $1,059). 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 julio 3, 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.

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 julio 3, 2025.
Read reviews from past customers who have flown Delta, KLM, and United Airlines 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.
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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 5 different airlines.

  • 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 $565 on this airline. Additional options worth looking into are British Airways and American Airlines, starting at $633 and $637 round-trip. United Airlines is currently priced 42% 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 $422. However, be on the lookout for offers from Air Canada and Lufthansa, 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 $1,059). 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 5 airlines flying from Buffalo to Barcelona

Discover the top 5 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$560Average$894FlexibilityNo cancel feeOn-time69%
DeltaCheapest$601Average$816FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$610Average$980FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$619Average$1,058FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$700Average$923FlexibilityNo cancel feeOn-time70%

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.