Cheap flights from Boston to Barcelona
Start here for the all-dates route view. Compare months, scan exact date pairs, then open a deal when the route lines up.
Lowest fare
€536
Typical (direct)
€859
Current signal
38% below typical
High fare
€1,439
Destination view
Barcelona is on the radar. Use the offers below to compare dates fast.
Price radar insight
Direct Flights to Barcelona at 275 EUR
Enjoy direct flights from the United States to Barcelona for just 275 EUR. This fare is significantly lower than the typical price.
Updated 23h ago
Best months on radar
Open a month-by-month route view
These month pages answer when this route tends to open best without replacing the all-dates route hub.
Best dates right now
Pick your travel window
These are the cheapest date pairs we found for this route.
Travel dates
17 May → 24 May
DirectOut 7h 15mBack 8h 20m
KLM
€689
Typical range forming
Travel dates
17 May → 26 May
DirectOut 7h 15mBack 8h 20m
Air France
€803
Typical range forming
Travel dates
17 May → 27 May
DirectOut 7h 15mBack 8h 20m
KLM
€803
Typical range forming
Travel dates
17 May → 29 May
DirectOut 7h 15mBack 8h 20m
KLM
€658
Typical range forming
Travel dates
18 May → 23 May
DirectOut 7h 15mBack 8h 20m
KLM
€841
Near typical
Travel dates
18 May → 27 May
DirectOut 7h 15mBack 8h 20m
KLM
€577
33% below typical
Travel dates
19 May → 24 May
DirectOut 7h 15mBack 8h 20m
Air France
€812
5% below typical
Travel dates
19 May → 26 May
DirectOut 7h 15mBack 8h 20m
KLM
€1,081
26% above typical
Travel dates
23 May → 29 May
DirectOut 7h 15mBack 8h 20m
KLM
€876
Near typical
Travel dates
23 May → 30 May
DirectOut 7h 15mBack 8h 20m
Air France
€837
Near typical