$369+ 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
Aug 6 — Aug 131
Round-trip
1 adult, Economy
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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
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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
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Cheapest flights from Buffalo to BarcelonaExplore 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 July 7, 2026.
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 July 7, 2026.
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.
Tue 10/204:35 pm
BUF
- BCN
2 stops14h 40m
Multiple Airlines
Tue 10/2711:30 am
BCN
- BUF
1 stop17h 29m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$714
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.
Tue 10/201:11 pm
BUF
- BCN
1 stop13h 54m
British Airways
Tue 10/2711:30 am
BCN
- BUF
1 stop17h 29m
British Airways
Deal found 7/3![British Airways logo]()
$717
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:45 pm
BUF
- BCN
1 stop13h 30m
United Airlines
Wed 10/289:55 am
BCN
- BUF
2 stops18h 26m
United Airlines
Deal found 7/3![United Airlines logo]()
$720
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:05 pm
BUF
- BCN
1 stop11h 15m
United Airlines
Tue 10/276:20 am
BCN
- BUF
2 stops18h 45m
United Airlines
Deal found 7/3![United Airlines logo]()
$722
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:30 am
BUF
- BCN
2 stops15h 50m
United Airlines
Tue 10/276:20 am
BCN
- BUF
2 stops18h 45m
United Airlines
Deal found 7/3![United Airlines logo]()
$727
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.
Tue 10/207:00 am
BUF
- BCN
3 stops19h 00m
Air Canada
Tue 10/275:55 am
BCN
- BUF
3 stops20h 01m
Air Canada
Deal found 7/3![Air Canada logo]()
$739
This United Airlines deal was found by Cheapflights users on 7/7. 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.
Thu 12/3110:20 am
BUF
- BCN
1 stop16h 40m
United Airlines
Thu 1/141:35 pm
BCN
- BUF
2 stops36h 56m
United Airlines
Deal found 7/7![United Airlines logo]()
$747
This Air France deal was found by Cheapflights users on 7/7. 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.
Thu 12/3112:09 pm
BUF
- BCN
1 stop14h 31m
Air France
Thu 1/1410:30 am
BCN
- BUF
1 stop19h 20m
Air France
Deal found 7/7![Air France logo]()
$767
Best flights from Buffalo to BarcelonaDiscover carefully curated flight deals from Buffalo to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 7, 2026.
Discover carefully curated flight deals from Buffalo to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 7, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:45 pm
BUF
- BCN
1 stop13h 30m
United Airlines
Wed 10/289:55 am
BCN
- BUF
2 stops18h 26m
United Airlines
Deal found 7/3![United Airlines logo]()
$720
This Virgin Atlantic deal was found by Cheapflights users on 7/7. 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.
Tue 12/17:00 am
BUF
- BCN
2 stops19h 40m
Virgin Atlantic
Tue 12/810:30 am
BCN
- BUF
2 stops19h 29m
Virgin Atlantic
Deal found 7/7![Virgin Atlantic logo]()
$722
This KLM deal was found by Cheapflights users on 7/6. 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.
Sun 9/136:59 pm
BUF
- BCN
1 stop11h 51m
KLM
Tue 9/2210:55 am
BCN
- BUF
1 stop14h 20m
KLM
Deal found 7/6![KLM logo]()
$826
This KLM deal was found by Cheapflights users on 7/6. 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 8/47:59 pm
BUF
- BCN
2 stops13h 36m
Multiple Airlines
Thu 9/310:55 am
BCN
- BUF
1 stop19h 45m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$830
This Delta deal was found by Cheapflights users on 7/7. 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 9/17:59 pm
BUF
- BCN
2 stops15h 11m
Delta
Sat 9/126:20 am
BCN
- BUF
2 stops23h 52m
Delta
Deal found 7/7![Delta logo]()
$884
This United Airlines deal was found by Cheapflights users on 7/4. 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 8/182:53 pm
BUF
- BCN
1 stop11h 27m
United Airlines
Tue 8/2511:15 am
BCN
- BUF
1 stop13h 45m
United Airlines
Deal found 7/4![United Airlines logo]()
$826
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:59 pm
BUF
- BCN
2 stops15h 11m
Delta
Sun 8/2311:10 am
BCN
- BUF
2 stops18h 48m
Delta
Deal found 7/3![Delta logo]()
$894
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:55 am
BUF
- BCN
2 stops19h 25m
United Airlines
Tue 9/221:15 pm
BCN
- BUF
3 stops26h 37m
United Airlines
Deal found 7/3![United Airlines logo]()
$829
This Delta deal was found by Cheapflights users on 7/4. 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.
Fri 10/911:20 am
BUF
- BCN
2 stops15h 40m
Delta
Sun 10/1110:05 am
BCN
- BUF
2 stops19h 54m
Delta
Deal found 7/4![Delta logo]()
$907
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
BUF
- BCN
1 stop21h 00m
United Airlines
Fri 8/711:15 am
BCN
- BUF
2 stops17h 51m
United Airlines
Deal found 7/3![United Airlines logo]()
$930
Last-minute flights from Buffalo to BarcelonaDiscover last-minute flight deals from Buffalo to Barcelona. Data last updated July 7, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Barcelona. Data last updated July 7, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 7/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
BUF
- BCN
2 stops34h 10m
Multiple Airlines
Wed 8/58:00 am
BCN
- BUF
2 stops21h 43m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$868
This Expedia deal was found by Cheapflights users on 7/6. 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.
Tue 8/46:00 am
BUF
- BCN
2 stops34h 10m
Multiple Airlines
Thu 9/38:00 am
BCN
- BUF
2 stops22h 08m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$783
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:25 am
BUF
- BCN
2 stops29h 45m
Multiple Airlines
Wed 9/28:00 am
BCN
- BUF
2 stops22h 08m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$808
This Condor deal was found by Cheapflights users on 7/6. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:00 am
BUF
- BCN
2 stops34h 10m
Multiple Airlines
Fri 8/148:00 am
BCN
- BUF
2 stops22h 13m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$890
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/162:51 pm
BUF
- BCN
1 stop9h 54m
British Airways
Sun 8/2310:30 am
BCN
- BUF
1 stop19h 32m
British Airways
Deal found 7/3![British Airways logo]()
$886
This Cheapflightsfares deal was found by Cheapflights users on 7/5. 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.
Tue 8/1810:30 am
BUF
- BCN
2 stops31h 05m
SWISS
Tue 8/256:00 am
BCN
- BUF
2 stops21h 07m
SWISS
Deal found 7/5![SWISS logo]()
$796
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Tue 8/184:38 pm
BUF
- BCN
2 stops14h 37m
American Airlines
Tue 8/2512:50 pm
BCN
- BUF
1 stop12h 17m
American Airlines
Deal found 7/5![American Airlines logo]()
$822
This United Airlines deal was found by Cheapflights users on 7/4. 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 8/182:53 pm
BUF
- BCN
1 stop11h 27m
United Airlines
Tue 8/2511:15 am
BCN
- BUF
1 stop13h 45m
United Airlines
Deal found 7/4![United Airlines logo]()
$826
This Cheapflightsfares deal was found by Cheapflights users on 7/6. 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.
Wed 8/1910:27 am
BUF
- BCN
1 stop17h 18m
JetBlue
Sun 8/3012:50 pm
BCN
- BUF
1 stop16h 53m
JetBlue
Deal found 7/6![JetBlue logo]()
$884
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/1910:30 am
BUF
- BCN
1 stop15h 50m
United Airlines
Sun 8/3012:15 pm
BCN
- BUF
2 stops27h 13m
United Airlines
Deal found 7/6![United Airlines logo]()
$889
One-way flights from Buffalo to BarcelonaSearch for one-way flight options from Buffalo to Barcelona. Find affordable one-way fares based on user searches. Data last updated July 7, 2026.
Search for one-way flight options from Buffalo to Barcelona. Find affordable one-way fares based on user searches. Data last updated July 7, 2026.
This Ovago deal was found by Cheapflights users on 7/4. 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.
Fri 7/249:36 pm
BUF
- BCN
1 stop30h 09m
JetBlue
Deal found 7/4![JetBlue logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 7/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:57 pm
BUF
- BCN
2 stops43h 38m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$372
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:52 pm
BUF
- BCN
2 stops22h 08m
British Airways
Deal found 7/3![British Airways logo]()
$380
This British Airways deal was found by Cheapflights users on 7/7. 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.
Fri 10/234:35 pm
BUF
- BCN
2 stops13h 45m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Fri 10/2311:24 am
BUF
- BCN
1 stop17h 11m
American Airlines
Deal found 7/7![American Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 7/6. 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.
Fri 10/911:20 am
BUF
- BCN
2 stops17h 55m
Delta
Deal found 7/6![Delta logo]()
$388
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:30 am
BUF
- BCN
2 stops25h 55m
United Airlines
Deal found 7/3![United Airlines logo]()
$392
This Cheapflightsfares deal was found by Cheapflights users on 7/6. 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.
Tue 9/159:15 am
BUF
- BCN
1 stop18h 30m
JetBlue
Deal found 7/6![JetBlue logo]()
$435
This KAYAK deal was found by Cheapflights users on 7/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:00 am
BUF
- BCN
1 stop21h 45m
JetBlue
Deal found 7/7![JetBlue logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:54 pm
BUF
- BCN
3 stops35h 51m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$454
This Cheapflightsfares deal was found by Cheapflights users on 7/7. 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.
Sun 8/910:57 am
BUF
- BCN
2 stops24h 53m
SWISS
Deal found 7/7![SWISS logo]()
$458
Find 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 July 7, 2026.
Round-trip from | $714 (British Airways) |
|---|---|
One-way from | $369 (Ovago) |
Popular in | May |
Cheapest in | December |
Average price | $979 |
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 July 7, 2026.
Use the filters below to find and compare flights from Buffalo to Barcelona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Mon 10/19
5:45 pm-1:15 pm
1 stop13h 30m
Barcelona-El Prat
Wed 10/28
9:55 am-11:21 pm
2 stops18h 26m
$720
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Tue 12/1
7:00 am-8:40 am
2 stops19h 40m
Barcelona-El Prat
Tue 12/8
10:30 am-11:59 pm
2 stops19h 29m
$722
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Sun 9/13
6:59 pm-12:50 pm
1 stop11h 51m
Barcelona-El Prat
Tue 9/22
10:55 am-7:15 pm
1 stop14h 20m
$826
Quickest round-trip
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Tue 8/18
2:53 pm-8:20 am
1 stop11h 27m
Barcelona-El Prat
Tue 8/25
11:15 am-7:00 pm
1 stop13h 45m
$826
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Fri 9/18
6:55 am-8:20 am
2 stops19h 25m
Barcelona-El Prat
Tue 9/22
1:15 pm-9:52 am
3 stops26h 37m
$829
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Tue 8/4
7:59 pm-3:35 pm
2 stops13h 36m
Barcelona-El Prat
Thu 9/3
10:55 am-12:40 am
1 stop19h 45m
$830
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Tue 9/1
7:59 pm-5:10 pm
2 stops15h 11m
Barcelona-El Prat
Sat 9/12
6:20 am-12:12 am
2 stops23h 52m
$884
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Sun 8/16
7:59 pm-5:10 pm
2 stops15h 11m
Barcelona-El Prat
Sun 8/23
11:10 am-11:58 pm
2 stops18h 48m
$894
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Fri 10/9
11:20 am-9:00 am
2 stops15h 40m
Barcelona-El Prat
Sun 10/11
10:05 am-11:59 pm
2 stops19h 54m
$907
BuffaloBarcelona
BUF - BCN
BUFBCN
Buffalo
Fri 7/31
6:00 am-9:00 am
1 stop21h 00m
Barcelona-El Prat
Fri 8/7
11:15 am-11:06 pm
2 stops17h 51m
$930
Showing 1-10 of 15 resultsSorted by cheapest first
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.
BUF-S37
BUF-BCN
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
BUF-S37
BUF-BCN
What is the cheapest month to book a flight from Buffalo to Barcelona?
Currently, September is the cheapest month in which you can book a flight from Buffalo to Barcelona (average of $137). Flying from Buffalo to Barcelona in May is currently the most expensive (average of $788). 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.
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 July 7, 2026.
Read reviews from past customers who have flown KLM,Delta, andUnited 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.
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
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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 July 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$155 | Average$880 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$162 | Average$918 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$513 | Average$662 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$582 | Average$782 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$665 | Average$867 | FlexibilityNo cancel fee | On-time71% |