$283+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
Aug 8 — Aug 151
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 45 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
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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 July 9, 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 July 9, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:50 pm
BOS
- BCN
1 stop11h 50m
Icelandair
Tue 11/2412:25 pm
BCN
- BOS
1 stop11h 25m
Icelandair
Deal found 7/7![Icelandair logo]()
$435
This Icelandair deal was found by Cheapflights users on 7/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:50 pm
BOS
- BCN
1 stop11h 50m
Icelandair
Sat 11/1412:25 pm
BCN
- BOS
1 stop11h 25m
Icelandair
Deal found 7/8![Icelandair logo]()
$436
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:50 pm
BOS
- BCN
1 stop11h 55m
Icelandair
Thu 10/292:45 pm
BCN
- BOS
1 stop33h 05m
Icelandair
Deal found 7/7![Icelandair logo]()
$438
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:50 pm
BOS
- BCN
1 stop11h 55m
Icelandair
Sat 10/3112:25 pm
BCN
- BOS
1 stop11h 25m
Icelandair
Deal found 7/7![Icelandair logo]()
$443
This Icelandair deal was found by Cheapflights users on 7/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:50 pm
BOS
- BCN
1 stop11h 55m
Icelandair
Wed 10/73:45 pm
BCN
- BOS
1 stop12h 00m
Icelandair
Deal found 7/8![Icelandair logo]()
$444
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:50 pm
BOS
- BCN
1 stop11h 55m
Icelandair
Sun 11/12:45 pm
BCN
- BOS
1 stop33h 05m
Icelandair
Deal found 7/7![Icelandair logo]()
$445
This Icelandair deal was found by Cheapflights users on 7/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:50 pm
BOS
- BCN
1 stop11h 50m
Icelandair
Tue 11/1712:25 pm
BCN
- BOS
1 stop11h 25m
Icelandair
Deal found 7/8![Icelandair logo]()
$510
This Icelandair deal was found by Cheapflights users on 7/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:50 pm
BOS
- BCN
1 stop11h 50m
Icelandair
Thu 11/192:45 pm
BCN
- BOS
1 stop33h 05m
Icelandair
Deal found 7/8![Icelandair logo]()
$512
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:50 pm
BOS
- BCN
2 stops18h 25m
Multiple Airlines
Fri 10/26:20 am
BCN
- BOS
2 stops21h 25m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$517
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Tue 9/158:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/5![Condor logo]()
$519
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/94:45 pm
BOS
- BCN
1 stop10h 40m
Condor
Thu 7/168:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/7![Condor logo]()
$524
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:05 pm
BOS
- BCN
1 stop25h 25m
TAP AIR PORTUGAL
Thu 10/1511:25 am
BCN
- BOS
1 stop14h 55m
TAP AIR PORTUGAL
Deal found 7/7![TAP AIR PORTUGAL logo]()
$525
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 July 9, 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 July 9, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:00 pm
BOS
- BCN
1 stop32h 00m
United Airlines
Thu 10/1512:15 pm
BCN
- BOS
1 stop27h 35m
United Airlines
Deal found 7/5![United Airlines logo]()
$686
This Delta deal was found by Cheapflights users on 7/8. 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.
Mon 10/127:20 pm
BOS
- BCN
Nonstop7h 15m
Delta
Mon 10/193:15 pm
BCN
- BOS
Nonstop8h 30m
Delta
Deal found 7/8![Delta logo]()
$715
This TAP AIR PORTUGAL 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:15 pm
BOS
- BCN
2 stops20h 15m
TAP AIR PORTUGAL
Mon 10/1911:25 am
BCN
- BOS
2 stops14h 55m
TAP AIR PORTUGAL
Deal found 7/4![TAP AIR PORTUGAL logo]()
$738
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:20 pm
BOS
- BCN
Nonstop7h 15m
KLM
Tue 9/153:15 pm
BCN
- BOS
Nonstop8h 30m
KLM
Deal found 7/4![KLM logo]()
$745
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:50 pm
BOS
- REU
2 stops19h 20m
Multiple Airlines
Sat 10/1011:25 am
REU
- BOS
2 stops13h 25m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$776
This JetBlue deal was found by Cheapflights users on 7/8. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:13 pm
BOS
- BCN
Nonstop7h 32m
JetBlue
Thu 10/1512:50 pm
BCN
- BOS
Nonstop8h 38m
JetBlue
Deal found 7/8![JetBlue logo]()
$790
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.
Sun 10/117:20 pm
BOS
- BCN
Nonstop7h 15m
Delta
Sun 10/186:20 am
BCN
- BOS
1 stop16h 16m
Delta
Deal found 7/7![Delta logo]()
$742
This TAP AIR PORTUGAL 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:15 pm
BOS
- BCN
2 stops20h 15m
TAP AIR PORTUGAL
Wed 10/213:00 pm
BCN
- BOS
1 stop11h 20m
TAP AIR PORTUGAL
Deal found 7/6![TAP AIR PORTUGAL logo]()
$744
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 9/2212:41 pm
BOS
- BCN
2 stops13h 19m
United Airlines
Sun 9/2712:15 pm
BCN
- BOS
1 stop15h 11m
United Airlines
Deal found 7/4![United Airlines logo]()
$751
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:00 pm
BOS
- GRO
2 stops14h 50m
Multiple Airlines
Sat 10/1011:05 pm
GRO
- BOS
2 stops23h 05m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$797
This JetBlue deal was found by Cheapflights users on 7/8. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:13 pm
BOS
- BCN
Nonstop7h 32m
JetBlue
Fri 9/2512:50 pm
BCN
- BOS
Nonstop8h 38m
JetBlue
Deal found 7/8![JetBlue logo]()
$799
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.
Mon 9/144:25 pm
BOS
- BCN
1 stop14h 25m
Delta
Fri 9/253:15 pm
BCN
- BOS
Nonstop8h 30m
Delta
Deal found 7/7![Delta logo]()
$750
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:15 pm
BOS
- REU
1 stop19h 10m
Multiple Airlines
Thu 8/2712:35 pm
REU
- BOS
1 stop12h 15m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$808
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.
Sat 8/297:25 pm
BOS
- BCN
Nonstop7h 10m
Delta
Sun 9/63:15 pm
BCN
- BOS
Nonstop8h 30m
Delta
Deal found 7/7![Delta logo]()
$796
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:50 pm
BOS
- GRO
2 stops20h 05m
Multiple Airlines
Tue 10/610:10 pm
GRO
- BOS
2 stops22h 45m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$880
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:20 pm
BOS
- BCN
Nonstop7h 15m
Delta
Sun 8/93:15 pm
BCN
- BOS
Nonstop8h 26m
Delta
Deal found 7/5![Delta logo]()
$800
Last-minute flights from Boston to BarcelonaDiscover last-minute flight deals from Boston to Barcelona. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Barcelona. Data last updated July 9, 2026 and is based on user searches.
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/94:45 pm
BOS
- BCN
1 stop10h 40m
Condor
Thu 7/168:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/7![Condor logo]()
$524
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.
Mon 7/134:45 pm
BOS
- BCN
1 stop23h 25m
Condor
Fri 8/218:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/6![Condor logo]()
$538
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/134:45 pm
BOS
- BCN
1 stop10h 45m
Condor
Thu 7/238:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/5![Condor logo]()
$548
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/114:45 pm
BOS
- BCN
1 stop10h 45m
Condor
Thu 8/278:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/6![Condor logo]()
$539
This Bravofly 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:45 pm
BOS
- BCN
1 stop10h 45m
Condor
Tue 8/258:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/4![Condor logo]()
$542
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:45 pm
BOS
- BCN
1 stop10h 40m
Condor
Thu 8/278:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/7![Condor logo]()
$543
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:15 pm
BOS
- REU
1 stop19h 10m
Multiple Airlines
Thu 8/2712:35 pm
REU
- BOS
1 stop12h 15m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$808
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/214:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Fri 8/288:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/5![Condor logo]()
$528
This SmartFares deal was found by Cheapflights users on 7/8. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:45 pm
BOS
- BCN
1 stop10h 45m
Condor
Mon 8/318:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/8![Condor logo]()
$547
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Tue 9/88:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/5![Condor logo]()
$550
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/294:45 pm
BOS
- BCN
1 stop17h 20m
Condor
Sat 9/58:00 am
BCN
- BOS
1 stop12h 45m
Condor
Deal found 7/4![Condor logo]()
$536
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 July 9, 2026.
Search for one-way flight options from Boston to Barcelona. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:50 pm
BOS
- GRO
2 stops19h 30m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:50 pm
BOS
- GRO
2 stops21h 45m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:00 pm
BOS
- GRO
2 stops41h 20m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:00 pm
BOS
- BCN
2 stops20h 15m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$303
This Justfly.com deal was found by Cheapflights users on 7/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:55 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Deal found 7/8![LEVEL logo]()
$304
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/278:50 pm
BOS
- BCN
2 stops22h 25m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:50 pm
BOS
- GRO
2 stops20h 05m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$305
This Mytrip deal was found by Cheapflights users on 7/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:00 pm
BOS
- BCN
2 stops20h 15m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/411:35 pm
BOS
- BCN
Nonstop7h 05m
LEVEL
Deal found 7/8![LEVEL logo]()
$307
This Iberia deal was found by Cheapflights users on 7/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:35 pm
BOS
- BCN
Nonstop7h 05m
Iberia
Deal found 7/8![Iberia logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:50 pm
BOS
- BCN
2 stops17h 50m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/411:00 pm
BOS
- BCN
2 stops20h 20m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$311
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 July 9, 2026.
Round-trip from | $435 (Kiwi.com) |
|---|---|
One-way from | $283 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $772 |
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 July 9, 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
Sun 10/11
7:00 pm-9:00 am
1 stop32h 00m
Barcelona-El Prat
Thu 10/15
12:15 pm-9:50 am
1 stop27h 35m
$686
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Mon 10/12
7:20 pm-8:35 am
Nonstop7h 15m
Barcelona-El Prat
Mon 10/19
3:15 pm-5:45 pm
Nonstop8h 30m
$715
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Mon 10/12
11:15 pm-1:30 am
2 stops20h 15m
Barcelona-El Prat
Mon 10/19
11:25 am-8:20 pm
2 stops14h 55m
$738
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Sun 10/11
7:20 pm-8:35 am
Nonstop7h 15m
Barcelona-El Prat
Sun 10/18
6:20 am-4:36 pm
1 stop16h 16m
$742
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Wed 9/16
11:15 pm-1:30 am
2 stops20h 15m
Barcelona-El Prat
Wed 10/21
3:00 pm-8:20 pm
1 stop11h 20m
$744
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Wed 9/9
7:20 pm-8:35 am
Nonstop7h 15m
Barcelona-El Prat
Tue 9/15
3:15 pm-5:45 pm
Nonstop8h 30m
$745
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Mon 9/14
4:25 pm-12:50 pm
1 stop14h 25m
Barcelona-El Prat
Fri 9/25
3:15 pm-5:45 pm
Nonstop8h 30m
$750
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Tue 9/22
12:41 pm-8:00 am
2 stops13h 19m
Barcelona-El Prat
Sun 9/27
12:15 pm-9:26 pm
1 stop15h 11m
$751
BostonReus
BOS - REU
BOSREU
Boston Logan Intl
Sat 10/3
8:50 pm-10:10 pm
2 stops19h 20m
Reus
Sat 10/10
11:25 am-6:50 pm
2 stops13h 25m
$776
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
Sun 10/11
8:13 pm-9:45 am
Nonstop7h 32m
Barcelona-El Prat
Thu 10/15
12:50 pm-3:28 pm
Nonstop8h 38m
$790
Showing 1-10 of 29 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-GRO
BOS-BCN
BOS-REU
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-GRO
BOS-BCN
BOS-REU
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 $253). Flying from Boston to Barcelona in February is currently the most expensive (average of $1,255). 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 July 9, 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 July 9, 2026.
The most flights from BOS to S37 are scheduled on a Wednesday (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 12% of weekly flights between Boston and Barcelona have experienced delays in the past year, with the average delay time being 126 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 7% 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 44 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 July 9, 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.
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
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 July 9, 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 July 9, 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 July 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$231 | Average$375 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$298 | Average$681 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$311 | Average$832 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$337 | Average$515 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$349 | Average$529 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$353 | Average$436 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$385 | Average$776 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$398 | Average$684 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$399 | Average$484 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$400 | Average$635 | FlexibilityNo cancel fee | On-time76% |