Earn point on your loyalty program!arrow arc left

Cheap flights from Boston (BOS) to Cairns (CNS)

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 Cairns (CNS)

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

Cheap flights from Boston to Cairns in April , May 2026

27 Apr - 28 May $ 1,658.00
BOS
Boston
Alaska Airlines
3 STOPS
CNS
Cairns
CNS
Cairns
Alaska Airlines
3 STOPS
BOS
Boston
Pick dates
29 Apr - 08 May $ 4,480.00
BOS
Boston
Cathay Pacific
2 STOPS
CNS
Cairns
CNS
Cairns
Cathay Pacific
2 STOPS
BOS
Boston
Pick dates
29 Apr - 08 May $ 4,858.00
BOS
Boston
Cathay Pacific
2 STOPS
CNS
Cairns
CNS
Cairns
Cathay Pacific
2 STOPS
BOS
Boston
Pick dates

Last minute flights from Boston to Cairns

27 Apr - 01 May $ 1,917.00
BOS
Boston
Alaska Airlines
3 STOPS
CNS
Cairns
CNS
Cairns
Alaska Airlines
3 STOPS
BOS
Boston
Pick dates
27 Apr - 01 May $ 1,919.00
BOS
Boston
Alaska Airlines
3 STOPS
CNS
Cairns
CNS
Cairns
Alaska Airlines
3 STOPS
BOS
Boston
Pick dates
28 Apr - 30 Apr $ 2,297.00
BOS
Boston
Alaska Airlines
2 STOPS
CNS
Cairns
CNS
Cairns
Alaska Airlines
3 STOPS
BOS
Boston
Pick dates

One-way flights to Cairns from Boston

2:18 PM - 8:45 AM
Fiji Airways
3 Stops
55h 22m
BOS - CNS
$ 711
Kiwi
Pick dates
6:01 PM - 12:40 PM
United Airlines
2 Stops
31h 54m
BOS - CNS
$ 1,381
Kiwi
Pick dates
5:55 PM - 12:40 PM
United Airlines
2 Stops
32h
BOS - CNS
$ 1,381
Kiwi
Pick dates

How to find the cheapest flight from Boston (BOS) to Cairns (CNS)

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