$316+ Cheap flights from Boston (BOS) 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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
Jul 19 — Jul 261
Round-trip
1 adult, Economy
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Find cheap flights from Boston 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.Cheapflights Tip: The best prices from Boston Logan Intl to Barcelona are usually found in January or February, booked 87 days in advance, depart on a Monday or Thursday and return on a Thursday
Cheap flight deals from Boston to Barcelona
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Best
Last-minute
One-way
Cheapest flights from Boston to BarcelonaExplore the most affordable flight options available from Boston to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 19, 2026.
Explore the most affordable flight options available from Boston to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 19, 2026.
This Mytrip deal was found by Cheapflights users on 6/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Fri 9/118:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/17![Condor logo]()
$544
This Booking.com deal was found by Cheapflights users on 6/18. 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.
Sat 8/14:45 pm
BOS
- BCN
1 stop10h 45m
Condor
Tue 9/18:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/18![Condor logo]()
$546
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 9/188:50 pm
BOS
- BCN
2 stops18h 35m
Multiple Airlines
Wed 9/236:30 pm
BCN
- BOS
Nonstop8h 35m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$547
This SmartFares deal was found by Cheapflights users on 6/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:45 pm
BOS
- BCN
1 stop10h 40m
Condor
Thu 9/178:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/19![Condor logo]()
$549
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Wed 9/168:50 pm
BOS
- BCN
2 stops18h 00m
Multiple Airlines
Wed 9/236:30 pm
BCN
- BOS
Nonstop8h 35m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$550
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:20 pm
BOS
- BCN
1 stop10h 40m
Iberia
Wed 10/216:30 pm
BCN
- BOS
Nonstop8h 35m
Iberia
Deal found 6/16![Iberia logo]()
$554
This Iberia deal was found by Cheapflights users on 6/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:20 pm
BOS
- BCN
1 stop12h 55m
Iberia
Thu 9/246:30 pm
BCN
- BOS
Nonstop8h 35m
Iberia
Deal found 6/15![Iberia logo]()
$555
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:35 pm
BOS
- BCN
Nonstop7h 05m
Iberia
Thu 10/229:45 am
BCN
- BOS
1 stop12h 25m
Iberia
Deal found 6/15![Iberia logo]()
$556
This Iberia deal was found by Cheapflights users on 6/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:35 pm
BOS
- BCN
Nonstop7h 05m
Iberia
Fri 10/231:35 pm
BCN
- BOS
1 stop11h 35m
Iberia
Deal found 6/15![Iberia logo]()
$557
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Tue 9/154:45 pm
BOS
- BCN
1 stop10h 45m
Condor
Mon 9/218:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/17![Condor logo]()
$558
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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.
Mon 8/314:45 pm
BOS
- BCN
1 stop17h 15m
Condor
Thu 9/108:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/18![Condor logo]()
$559
This Mytrip deal was found by Cheapflights users on 6/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Sun 9/205:00 pm
BCN
- BOS
1 stop27h 45m
Condor
Deal found 6/18![Condor logo]()
$560
Best flights from Boston to BarcelonaDiscover carefully curated flight deals from Boston to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 19, 2026.
Discover carefully curated flight deals from Boston to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 19, 2026.
This Delta deal was found by Cheapflights users on 6/18. 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 10/137:20 pm
BOS
- BCN
Nonstop7h 15m
Delta
Fri 10/233:15 pm
BCN
- BOS
Nonstop8h 30m
Delta
Deal found 6/18![Delta logo]()
$691
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Thu 11/127:35 pm
BOS
- BCN
1 stop31h 25m
United Airlines
Sun 11/291:35 pm
BCN
- BOS
1 stop33h 22m
United Airlines
Deal found 6/15![United Airlines logo]()
$732
This Turkish Airlines deal was found by Cheapflights users on 6/17. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:00 pm
BOS
- BCN
1 stop21h 50m
Turkish Airlines
Sat 11/286:30 pm
BCN
- BOS
1 stop29h 35m
Turkish Airlines
Deal found 6/17![Turkish Airlines logo]()
$742
This United deal was found by Cheapflights users on 6/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:40 am
BOS
- BCN
1 stop15h 20m
Multiple Airlines
Sun 8/168:00 pm
BCN
- BOS
1 stop29h 55m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$767
This Virgin Atlantic deal was found by Cheapflights users on 6/14. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:20 pm
BOS
- BCN
Nonstop7h 15m
Virgin Atlantic
Thu 7/233:15 pm
BCN
- BOS
Nonstop8h 26m
Virgin Atlantic
Deal found 6/14![Virgin Atlantic logo]()
$800
This Delta deal was found by Cheapflights users on 6/15. 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.
Sat 10/107:20 pm
BOS
- BCN
Nonstop7h 15m
Delta
Fri 10/163:15 pm
BCN
- BOS
Nonstop8h 30m
Delta
Deal found 6/15![Delta logo]()
$779
This Condor deal was found by Cheapflights users on 6/18. 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.
Fri 8/1412:42 pm
BOS
- BCN
2 stops27h 28m
Multiple Airlines
Fri 8/218:00 am
BCN
- BOS
1 stop12h 45m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$790
This Delta deal was found by Cheapflights users on 6/18. 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 10/167:20 pm
BOS
- BCN
Nonstop7h 15m
Delta
Wed 10/213:15 pm
BCN
- BOS
Nonstop8h 30m
Delta
Deal found 6/18![Delta logo]()
$780
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:25 pm
BOS
- BCN
Nonstop7h 10m
Delta
Tue 8/113:15 pm
BCN
- BOS
Nonstop8h 26m
Delta
Deal found 6/14![Delta logo]()
$780
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/313:35 pm
BOS
- REU
2 stops24h 25m
Multiple Airlines
Fri 8/710:50 pm
REU
- BOS
2 stops21h 51m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$941
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:25 pm
BOS
- BCN
Nonstop7h 10m
Delta
Mon 8/1711:00 am
BCN
- BOS
1 stop20h 25m
Delta
Deal found 6/14![Delta logo]()
$791
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:10 pm
BOS
- BCN
1 stop18h 00m
Delta
Wed 8/193:15 pm
BCN
- BOS
Nonstop8h 26m
Delta
Deal found 6/14![Delta logo]()
$798
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:20 pm
BOS
- BCN
Nonstop7h 15m
Delta
Sun 9/273:15 pm
BCN
- BOS
Nonstop8h 30m
Delta
Deal found 6/14![Delta logo]()
$799
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:25 pm
BOS
- GRO
1 stop12h 15m
Multiple Airlines
Thu 7/2311:20 pm
GRO
- BOS
1 stop21h 35m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$1,080
This Mytrip deal was found by Cheapflights users on 6/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/710:05 am
BOS
- GRO
3 stops30h 35m
Multiple Airlines
Sun 8/168:30 am
GRO
- BOS
3 stops30h 35m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$1,089
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:30 pm
BOS
- GRO
1 stop9h 55m
Multiple Airlines
Sun 9/139:15 pm
GRO
- BOS
2 stops24h 55m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$1,202
Last-minute flights from Boston to BarcelonaDiscover last-minute flight deals from Boston to Barcelona. Data last updated June 19, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Barcelona. Data last updated June 19, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/18. 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.
Tue 6/234:45 pm
BOS
- BCN
1 stop10h 45m
Condor
Sat 6/278:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/18![Condor logo]()
$626
This Expedia deal was found by Cheapflights users on 6/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Thu 7/98:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/14![Condor logo]()
$615
This Booking.com deal was found by Cheapflights users on 6/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Thu 7/168:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/16![Condor logo]()
$632
This LEVEL deal was found by Cheapflights users on 6/14. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/511:35 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Wed 7/156:30 pm
BCN
- BOS
Nonstop8h 35m
LEVEL
Deal found 6/14![LEVEL logo]()
$633
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/511:35 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Thu 7/167:10 pm
BCN
- BOS
Nonstop8h 35m
LEVEL
Deal found 6/14![LEVEL logo]()
$634
This LEVEL deal was found by Cheapflights users on 6/15. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:35 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Thu 7/237:10 pm
BCN
- BOS
Nonstop8h 35m
LEVEL
Deal found 6/15![LEVEL logo]()
$586
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:35 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Wed 7/226:30 pm
BCN
- BOS
Nonstop8h 35m
LEVEL
Deal found 6/14![LEVEL logo]()
$587
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1611:35 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Thu 7/237:10 pm
BCN
- BOS
Nonstop8h 35m
LEVEL
Deal found 6/15![LEVEL logo]()
$635
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Wed 7/2910:55 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Thu 9/36:30 pm
BCN
- BOS
Nonstop8h 35m
LEVEL
Deal found 6/18![LEVEL logo]()
$610
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/3011:35 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Thu 9/36:30 pm
BCN
- BOS
Nonstop8h 35m
LEVEL
Deal found 6/18![LEVEL logo]()
$595
This Gotogate deal was found by Cheapflights users on 6/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/304:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Thu 8/68:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 6/15![Condor logo]()
$628
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/313:35 pm
BOS
- REU
2 stops24h 25m
Multiple Airlines
Fri 8/710:50 pm
REU
- BOS
2 stops21h 51m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$941
One-way flights from Boston to BarcelonaSearch for one-way flight options from Boston to Barcelona. Find affordable one-way fares based on user searches. Data last updated June 19, 2026.
Search for one-way flight options from Boston to Barcelona. Find affordable one-way fares based on user searches. Data last updated June 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Sun 7/198:50 pm
BOS
- REU
2 stops33h 15m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$316
This Iberia deal was found by Cheapflights users on 6/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:35 pm
BOS
- BCN
Nonstop7h 05m
Iberia
Deal found 6/17![Iberia logo]()
$323
This Iberia deal was found by Cheapflights users on 6/18. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:35 pm
BOS
- BCN
Nonstop7h 05m
Iberia
Deal found 6/18![Iberia logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:50 pm
BOS
- BCN
3 stops18h 50m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Wed 9/1611:00 pm
BOS
- BCN
2 stops18h 50m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:00 pm
BOS
- BCN
2 stops19h 40m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$327
This FlightHub deal was found by Cheapflights users on 6/17. 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.
Wed 7/158:50 pm
BOS
- BCN
1 stop11h 55m
Icelandair
Deal found 6/17![Icelandair logo]()
$328
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:50 pm
BOS
- BCN
2 stops18h 05m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:00 pm
BOS
- BCN
2 stops20h 20m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Sun 9/2711:00 pm
BOS
- BCN
2 stops43h 10m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:50 pm
BOS
- BCN
2 stops19h 50m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Sun 9/138:50 pm
BOS
- BCN
2 stops21h 20m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$333
Find flight deals from Boston to Barcelona
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 June 19, 2026.
Round-trip from | $544 (Mytrip) |
|---|---|
One-way from | $316 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $853 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 June 19, 2026.
Use the filters below to find and compare flights from Boston to Barcelona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Tue 10/13
7:20 pm-8:35 am
Nonstop7h 15m
Barcelona-El Prat
Fri 10/23
3:15 pm-5:45 pm
Nonstop8h 30m
$691
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Thu 11/12
7:35 pm-9:00 am
1 stop31h 25m
Barcelona-El Prat
Sun 11/29
1:35 pm-4:57 pm
1 stop33h 22m
$732
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Wed 11/25
8:00 pm-11:50 pm
1 stop21h 50m
Barcelona-El Prat
Sat 11/28
6:30 pm-6:05 pm
1 stop29h 35m
$742
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Mon 8/10
10:40 am-8:00 am
1 stop15h 20m
Barcelona-El Prat
Sun 8/16
8:00 pm-7:55 pm
1 stop29h 55m
$767
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Sat 10/10
7:20 pm-8:35 am
Nonstop7h 15m
Barcelona-El Prat
Fri 10/16
3:15 pm-5:45 pm
Nonstop8h 30m
$779
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Fri 10/16
7:20 pm-8:35 am
Nonstop7h 15m
Barcelona-El Prat
Wed 10/21
3:15 pm-5:45 pm
Nonstop8h 30m
$780
Quickest round-trip
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Wed 8/5
7:25 pm-8:35 am
Nonstop7h 10m
Barcelona-El Prat
Tue 8/11
3:15 pm-5:41 pm
Nonstop8h 26m
$780
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Fri 8/14
12:42 pm-10:10 pm
2 stops27h 28m
Barcelona-El Prat
Fri 8/21
8:00 am-2:45 pm
1 stop12h 45m
$790
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Tue 8/11
7:25 pm-8:35 am
Nonstop7h 10m
Barcelona-El Prat
Mon 8/17
11:00 am-1:25 am
1 stop20h 25m
$791
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Sun 8/9
5:10 pm-5:10 pm
1 stop18h 00m
Barcelona-El Prat
Wed 8/19
3:15 pm-5:41 pm
Nonstop8h 26m
$798
Showing 1-10 of 28 resultsSorted by cheapest first
Best time to book a flight from Boston to Barcelona
Have a flexible travel schedule? Discover the best time to fly to Barcelona from Boston with our price prediction graph.
BOS-S37
BOS-BCN
BOS-REU
BOS-GRO
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 Boston to Barcelona
BOS-S37
BOS-BCN
BOS-REU
BOS-GRO
What is the cheapest month to book a flight from Boston to Barcelona?
Currently, January is the cheapest month in which you can book a flight from Boston to Barcelona (average of $275). Flying from Boston to Barcelona in February is currently the most expensive (average of $1,198). 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 BOS to BCN?
Find hourly flight availability from Boston 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 June 19, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Barcelona as you normally would.
Weekly flight availability from Boston to Barcelona
Explore weekly flight availability from Boston to Barcelona. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 19, 2026.
The most flights from BOS to S37 are scheduled on a Thursday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Boston to Barcelona?
How often are flights from Boston to Barcelona delayed?
About 13% of weekly flights between Boston and Barcelona have experienced delays in the past year, with the average delay time being 121 minutes.
What is the most punctual flight time for Boston to Barcelona flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boston to Barcelona flights?
Over the last year, JetBlue have had the lowest number of delays on this route, with just 6% of flights being delayed.
How far ahead should I book a flight from Boston to Barcelona?
The best time to book flights from Boston to Barcelona is 86 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.
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 June 19, 2026.
Read reviews from past customers who have flown Delta,American Airlines, andJetBlue from Boston 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
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Boston to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Search flights from Boston to Barcelona by cabin class
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Boston and Barcelona flights
Browse other Boston and Barcelona flight options. Last updated on June 19, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on June 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from Boston to Barcelona
Discover the top 10 airlines that operate flights from Boston 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 June 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$257 | Average$396 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$259 | Average$581 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$311 | Average$832 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$330 | Average$630 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$337 | Average$495 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$349 | Average$497 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$352 | Average$437 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$393 | Average$690 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$398 | Average$655 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$398 | Average$466 | FlexibilityNo cancel fee | On-time67% |