Earn point on your loyalty program!arrow arc left

Cheap flights from Boston (BOS) to Calcutta (CCU)

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 Calcutta (CCU)

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

Cheap flights from Boston to Calcutta in April , May 2026

30 Apr - 19 May $ 1,582.00
BOS
Boston
Virgin Atlantic Airways
2 STOPS
CCU
Calcutta
CCU
Calcutta
Virgin Atlantic Airways
2 STOPS
BOS
Boston
Pick dates
29 Apr - 21 May $ 1,827.00
BOS
Boston
Swiss International Air Lines
2 STOPS
CCU
Calcutta
CCU
Calcutta
Swiss International Air Lines
2 STOPS
BOS
Boston
Pick dates
30 Apr - 09 May $ 2,888.00
BOS
Boston
Etihad Airways
2 STOPS
CCU
Calcutta
CCU
Calcutta
Etihad Airways
1 STOPS
BOS
Boston
Pick dates

One-way flights to Calcutta from Boston

8:05 PM - 2:45 AM
IndiGo Airlines
2 Stops
23h 55m
BOS - CCU
$ 886
Kiwi
Pick dates
9:40 PM - 2:30 AM
Swiss International Air Lines
2 Stops
21h 40m
BOS - CCU
$ 1,036
Kiwi
Pick dates
9:40 PM - 2:30 AM
Swiss International Air Lines
2 Stops
21h 40m
BOS - CCU
$ 1,048
Kiwi
Pick dates

How to find the cheapest flight from Boston (BOS) to Calcutta (CCU)

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 Calcutta (CCU)
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 Calcutta (CCU)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.