Earn point on your loyalty program!arrow arc left

Cheap flights from Billings (BIL) to Sydney (SYD)

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 Billings (BIL) to Sydney (SYD)

How to find the cheapest flight from Billings (BIL) to Sydney (SYD)
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 Billings (BIL) to Sydney (SYD)
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 Billings (BIL) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Billings to Sydney in November , December 2025

24 Nov - 10 Dec $ 1,389.00
BIL
Billings
Alaska Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
Alaska Airlines
3 STOPS
BIL
Billings
Pick dates
23 Nov - 10 Dec $ 2,246.00
BIL
Billings
Qantas
2 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
BIL
Billings
Pick dates
23 Nov - 10 Dec $ 3,067.00
BIL
Billings
Qantas
1 STOPS
SYD
Sydney
SYD
Sydney
Qantas
1 STOPS
BIL
Billings
Pick dates

Last minute flights from Billings to Sydney

20 Nov - 30 Nov $ 2,067.00
BIL
Billings
United Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
United Airlines
2 STOPS
BIL
Billings
Pick dates
20 Nov - 30 Nov $ 2,067.00
BIL
Billings
United Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
United Airlines
2 STOPS
BIL
Billings
Pick dates
20 Nov - 30 Nov $ 2,067.00
BIL
Billings
United Airlines
2 STOPS
SYD
Sydney
SYD
Sydney
United Airlines
2 STOPS
BIL
Billings
Pick dates

One-way flights to Sydney from Billings

5:21 PM - 8:15 PM
Qantas
2 Stops
42h 49m
BIL - SYD
$ 658
Kiwi
Pick dates
6:00 AM - 11:55 AM
Alaska Airlines
2 Stops
43h 45m
BIL - SYD
$ 817
Kiwi
Pick dates
2:31 PM - 10:40 PM
United Airlines
2 Stops
24h 34m
BIL - SYD
$ 981
Kiwi
Pick dates

How to find the cheapest flight from Billings (BIL) to Sydney (SYD)

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 Billings (BIL) to Sydney (SYD)
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 Billings (BIL) to Sydney (SYD)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.