Earn point on your loyalty program!arrow arc left

Cheap flights from Boston (BOS) to Belfast (BFS)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Boston (BOS) to Belfast (BFS)

How to find the cheapest flight from Boston (BOS) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Boston to Belfast in September , October 2026

28 Sep - 21 Oct $ 1,075.00
BOS
Boston
JetBlue Airways
2 STOPS
BFS
Belfast
BFS
Belfast
JetBlue Airways
1 STOPS
BOS
Boston
Pick dates
28 Sep - 20 Oct $ 1,076.00
BOS
Boston
JetBlue Airways
2 STOPS
BFS
Belfast
BFS
Belfast
JetBlue Airways
1 STOPS
BOS
Boston
Pick dates
28 Sep - 22 Oct $ 1,080.00
BOS
Boston
JetBlue Airways
2 STOPS
BFS
Belfast
BFS
Belfast
JetBlue Airways
1 STOPS
BOS
Boston
Pick dates

Last minute flights from Boston to Belfast

28 Sep - 01 Oct $ 1,060.00
BOS
Boston
JetBlue Airways
2 STOPS
BFS
Belfast
BFS
Belfast
JetBlue Airways
2 STOPS
BOS
Boston
Pick dates
29 Sep - 01 Oct $ 1,123.00
BOS
Boston
JetBlue Airways
2 STOPS
BFS
Belfast
BFS
Belfast
JetBlue Airways
2 STOPS
BOS
Boston
Pick dates
28 Sep - 01 Oct $ 1,137.00
BOS
Boston
JetBlue Airways
2 STOPS
BFS
Belfast
BFS
Belfast
JetBlue Airways
2 STOPS
BOS
Boston
Pick dates

One-way flights to Belfast from Boston

4:45 PM - 12:10 PM
easyJet
2 Stops
15h 55m
BOS - BFS
$ 490
Kiwi
Pick dates
4:45 PM - 1:55 PM
easyJet
2 Stops
17h 45m
BOS - BFS
$ 490
Kiwi
Pick dates
9:15 PM - 2:05 PM
Aer Lingus
2 Stops
12h 45m
BOS - BFS
$ 727
Kiwi
Pick dates

How to find the cheapest flight from Boston (BOS) to Belfast (BFS)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.