
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,328 (Cheapflightsfares) |
One-way from | $580 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $1,523 |
Fly from
Fly to
Route
Depart
Return
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Mon 5/11
6:01 pm-6:55 am
1 stop22h 54m
Sydney Kingsford Smith
Tue 6/16
10:20 am-9:21 pm
1 stop25h 01m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Thu 7/30
6:26 pm-7:00 am
1 stop22h 34m
Sydney Kingsford Smith
Sun 8/23
9:30 am-5:23 pm
1 stop21h 53m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Sat 5/30
3:15 pm-6:50 am
2 stops25h 35m
Sydney Kingsford Smith
Thu 6/11
9:15 am-11:54 pm
1 stop28h 39m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Fri 6/12
6:26 pm-7:00 am
1 stop22h 34m
Sydney Kingsford Smith
Fri 6/19
9:30 am-9:53 pm
2 stops26h 23m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Wed 9/23
12:55 pm-6:50 am
2 stops27h 55m
Sydney Kingsford Smith
Wed 9/30
9:15 am-7:45 pm
2 stops24h 30m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Mon 10/19
5:00 pm-7:50 am
1 stop23h 50m
Sydney Kingsford Smith
Mon 11/2
10:40 am-8:26 pm
2 stops25h 46m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Sun 10/18
3:10 pm-7:50 am
2 stops25h 40m
Sydney Kingsford Smith
Tue 11/3
10:40 am-7:11 pm
2 stops24h 31m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Sun 8/2
8:00 am-6:50 am
2 stops32h 50m
Sydney Kingsford Smith
Thu 8/20
9:15 am-7:38 pm
1 stop24h 23m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Sun 8/2
6:03 am-6:50 pm
2 stops46h 47m
Sydney Kingsford Smith
Thu 8/20
8:45 pm-3:49 pm
2 stops33h 04m
BostonSydney
BOS - SYD
BOSSYD
Boston Logan Intl
Mon 8/24
12:30 pm-10:40 am
3 stops32h 10m
Sydney Kingsford Smith
Mon 9/7
11:55 am-12:55 am
2 stops27h 00m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars |
To ensure you get the cheapest price possible for a flight from Boston to Sydney, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, September is the cheapest month in which you can book a flight from Boston to Sydney (average of $1,220). Flying from Boston to Sydney in December is currently the most expensive (average of $2,007). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Houston (IAH) – chosen by Cheapflights users on 33% of 1-stop itineraries from Boston to Sydney on Cheapflights.
Los Angeles (LAX) is the most affordable 1-stop option, with an average round-trip price of $1,238.
Flights via Los Angeles (LAX) have the shortest average one-way travel time for 1-stop routes: 22h 33m.
Flights via Los Angeles (LAX) offer the fastest connection on this route, with an average layover time of 1h 21m.
Boarding
Food
Crew
Overall
Comfort
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Crew
Overall
Comfort
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Crew
Overall
Comfort
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Crew
Overall
Comfort
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Crew
Overall
Comfort
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Crew
Overall
Comfort
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$273 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$312 | Average$1,441 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$727 | Average$1,059 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$907 | Average$1,318 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,074 | Average$1,431 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,145 | Average$1,575 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,147 | Average$1,453 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,166 | Average$1,414 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,233 | Average$1,553 | FlexibilityNo cancel fee | On-time68% |