$652+ Cheap flights from Boston (BOS) to Sydney (SYD)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SYD
Oct 1 — Oct 81
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Sydney with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Sydney
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Cheapest flights from Boston to SydneyExplore the most affordable flight options available from Boston to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.
Explore the most affordable flight options available from Boston to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.
This lol.travel deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:40 am -
2 stops30h 40m
Mon 11/211:20 am -
2 stops26h 08m
Deal found 8/31![Air Canada logo]()
$1,011
This lol.travel deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:45 pm -
2 stops28h 35m
Mon 11/211:20 am -
2 stops26h 08m
Deal found 8/31![Air Canada logo]()
$1,016
This Justfly.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:40 am -
2 stops30h 40m
Wed 10/2810:20 am -
2 stops38h 43m
Deal found 8/30![Air Canada logo]()
$1,093
This Air Canada deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:35 am -
2 stops31h 00m
Mon 11/211:20 am -
2 stops38h 38m
Deal found 8/27![Air Canada logo]()
$1,095
This Air Canada deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:30 am -
2 stops36h 05m
Tue 11/1011:20 am -
2 stops38h 43m
Deal found 8/31![Air Canada logo]()
$1,096
This Travelocity deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:40 pm -
2 stops45h 55m
Mon 11/2311:20 am -
2 stops26h 08m
Deal found 8/28![Air Canada logo]()
$1,100
Best flights from Boston to SydneyDiscover carefully curated flight deals from Boston to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.
Discover carefully curated flight deals from Boston to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:45 pm -
2 stops25h 15m
Wed 11/49:15 am -
1 stop21h 06m
Deal found 8/28![United Airlines logo]()
$1,310
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/177:45 am -
1 stop32h 45m
Wed 2/2410:40 am -
2 stops35h 53m
Deal found 8/31![Delta logo]()
$1,315
This Air New Zealand deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3011:45 am -
3 stops28h 50m
Wed 2/179:55 am -
3 stops39h 29m
Deal found 8/31![Multiple Airlines logo]()
$1,494
This Emirates deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:10 pm -
1 stop28h 25m
Wed 11/119:45 pm -
1 stop32h 10m
Deal found 8/31![Emirates logo]()
$1,771
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:45 am -
2 stops35h 15m
Mon 11/211:20 am -
1 stop21h 33m
Deal found 8/28![United Airlines logo]()
$1,310
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:30 am -
2 stops31h 25m
Mon 11/911:20 am -
2 stops26h 10m
Deal found 8/30![United Airlines logo]()
$1,315
This Air New Zealand deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am -
3 stops35h 35m
Mon 11/29:55 am -
3 stops30h 51m
Deal found 8/27![Multiple Airlines logo]()
$1,645
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:45 am -
2 stops35h 20m
Tue 11/39:20 am -
1 stop21h 01m
Deal found 8/30![United Airlines logo]()
$1,360
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:17 pm -
1 stop45h 43m
Sat 11/219:20 am -
2 stops31h 26m
Deal found 8/31![United Airlines logo]()
$1,370
Last-minute flights from Boston to SydneyDiscover last-minute flight deals from Boston to Sydney. Data last updated September 1, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Sydney. Data last updated September 1, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:28 pm -
2 stops26h 27m
Mon 9/1410:20 am -
1 stop20h 47m
Deal found 8/30![United Airlines logo]()
$1,225
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:45 am -
2 stops35h 15m
Mon 9/710:20 am -
1 stop20h 47m
Deal found 8/30![United Airlines logo]()
$1,240
This Cheapflightsfares deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:00 am -
2 stops44h 10m
Mon 9/78:55 pm -
2 stops36h 24m
Deal found 8/30![ANA logo]()
$1,357
This Air Canada deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:41 pm -
2 stops28h 39m
Tue 9/299:20 am -
2 stops38h 30m
Deal found 9/1![Multiple Airlines logo]()
$1,368
This Cheapflightsfares deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:30 am -
1 stop30h 35m
Sun 10/410:10 am -
1 stop28h 18m
Deal found 8/30![Qantas Airways logo]()
$1,352
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:45 am -
2 stops35h 15m
Sun 10/411:20 am -
2 stops27h 39m
Deal found 8/30![United Airlines logo]()
$1,360
This American Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:10 pm -
2 stops26h 45m
Wed 11/411:10 am -
2 stops23h 41m
Deal found 8/28![American Airlines logo]()
$1,311
This American Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:59 pm -
1 stop23h 56m
Sun 11/111:10 am -
1 stop21h 19m
Deal found 8/28![American Airlines logo]()
$1,356
This American Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:59 pm -
1 stop23h 56m
Tue 11/311:10 am -
1 stop28h 49m
Deal found 8/31![American Airlines logo]()
$1,306
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:45 am -
2 stops35h 15m
Tue 11/39:20 am -
1 stop23h 29m
Deal found 8/28![United Airlines logo]()
$1,310
One-way flights from Boston to SydneySearch for one-way flight options from Boston to Sydney. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
Search for one-way flight options from Boston to Sydney. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:03 am -
2 stops29h 22m
Deal found 8/28![Multiple Airlines logo]()
$652
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/205:06 pm -
3 stops59h 09m
Deal found 8/30![Multiple Airlines logo]()
$676
This oojo deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:25 pm -
1 stop27h 35m
Deal found 8/27![Qantas Airways logo]()
$682
This oojo deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:00 am -
1 stop29h 25m
Deal found 8/27![Qantas Airways logo]()
$684
This Kiwi.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:33 am -
2 stops31h 57m
Deal found 8/29![Multiple Airlines logo]()
$687
This Cheapflightsfares deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/297:00 am -
1 stop34h 00m
Deal found 8/28![Qantas Airways logo]()
$693
This American Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:52 pm -
2 stops26h 08m
Deal found 8/27![American Airlines logo]()
$696
This American Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:02 pm -
2 stops25h 23m
Deal found 8/27![American Airlines logo]()
$697
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:15 am -
3 stops31h 05m
Deal found 8/31![United Airlines logo]()
$698
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/67:41 pm -
2 stops43h 19m
Deal found 8/30![United Airlines logo]()
$704
This Kiwi.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:50 am -
3 stops56h 55m
Deal found 8/29![Multiple Airlines logo]()
$709
This United Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:17 pm -
1 stop45h 43m
Deal found 8/29![United Airlines logo]()
$715
Find flight deals from Boston to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,011 (lol.travel) |
One-way from | $652 (Kiwi.com) |
Popular in | December |
Cheapest in | March |
Average price | $1,322 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 1, 2026.
Use the filters below to find and compare flights from Boston to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Mon 9/28
3:45 pm-7:00 am
2 stops25h 15m
Sydney Kingsford Smith
Wed 11/4
9:15 am-2:21 pm
1 stop21h 06m
$1,310
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Mon 9/28
5:45 am-7:00 am
2 stops35h 15m
Sydney Kingsford Smith
Mon 11/2
11:20 am-4:53 pm
1 stop21h 33m
$1,310
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Wed 2/17
7:45 am-8:30 am
1 stop32h 45m
Sydney Kingsford Smith
Wed 2/24
10:40 am-6:33 am
2 stops35h 53m
$1,315
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Tue 10/6
9:30 am-7:55 am
2 stops31h 25m
Sydney Kingsford Smith
Mon 11/9
11:20 am-9:30 pm
2 stops26h 10m
$1,315
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Sat 10/24
5:45 am-8:05 am
2 stops35h 20m
Sydney Kingsford Smith
Tue 11/3
9:20 am-2:21 pm
1 stop21h 01m
$1,360
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Sat 11/7
5:17 pm-7:00 am
1 stop45h 43m
Sydney Kingsford Smith
Sat 11/21
9:20 am-12:46 am
2 stops31h 26m
$1,370
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Sat 1/30
11:45 am-8:35 am
3 stops28h 50m
Sydney Kingsford Smith
Wed 2/17
9:55 am-9:24 am
3 stops39h 29m
$1,494
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Sun 10/25
6:00 am-8:35 am
3 stops35h 35m
Sydney Kingsford Smith
Mon 11/2
9:55 am-12:46 am
3 stops30h 51m
$1,645
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Sun 11/8
10:10 pm-6:35 pm
1 stop28h 25m
Sydney Kingsford Smith
Wed 11/11
9:45 pm-1:55 pm
1 stop32h 10m
$1,771
Cheapest one-way
BostonSydney
BOS Boston Logan Intl - SYD Sydney Kingsford Smith
BOSSYD
Boston Logan Intl
Wed 11/4
9:00 am-6:25 am
1 stop29h 25m
$684
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Boston to Sydney
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Sydney in September.
| 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 Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Sydney flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boston to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Boston with our price prediction graph.
BOS-SYD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Boston to Sydney
Prices
More
How far ahead should I book a flight from Boston to Sydney?
To ensure you get the cheapest price possible for a flight from Boston to Sydney, you should look to book at least 15 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.
What is the cheapest month to book a flight from Boston to Sydney?
Currently, March is the cheapest month in which you can book a flight from Boston to Sydney (average of $1,268). Flying from Boston to Sydney in December is currently the most expensive (average of $2,088). 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.
How much does it cost to fly round-trip from Boston to Sydney?
Airfare is below average for this route at the moment.
Boston to Sydney flights typically cost between $1,220 and $1,460 in October.The cheapest round-trip price found within the last 5 days was $1,011 on Air Canada (Oct 18-Nov 2).
What’s the top layover airport for flights from Boston to Sydney?
Share of 1-stop round-trip flights from Boston to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.
Los Angeles (LAX) – chosen by Cheapflights users on 50% of 1-stop itineraries from Boston to Sydney on Cheapflights.
What’s the cheapest layover airport for flights from Boston to Sydney?
Average round-trip fare for 1-stop flights from Boston to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.
San Francisco (SFO) is the most affordable 1-stop option, with an average round-trip price of $1,249.
What’s the fastest layover option from Boston to Sydney?
Shortest average travel time for 1-stop one-way flights from Boston to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Los Angeles (LAX) have the shortest average one-way travel time for 1-stop routes: 23h 03m.
Which airport typically offers the quickest layover for flights from Boston to Sydney?
Average layover duration for 1-stop one-way flights from Boston to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Los Angeles (LAX) offer the fastest connection on this route, with an average layover time of 1h 42m.
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated September 1, 2026.
See what other customers who have flown with Air New Zealand,Delta, andQantas Airways from Boston to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.4
Boarding
8.2
Crew
8.5
Entertainment
7.4
Comfort
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Overall
8.0
Food
7.4
Boarding
8.2
Crew
8.5
Entertainment
7.4
Comfort
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Overall
8.0
Food
7.4
Boarding
8.2
Crew
8.5
Entertainment
7.4
Comfort
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Overall
8.0
Food
7.4
Boarding
8.2
Crew
8.5
Entertainment
7.4
Comfort
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Overall
8.0
Food
7.4
Boarding
8.2
Crew
8.5
Entertainment
7.4
Comfort
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Overall
8.0
Food
7.4
Boarding
8.2
Crew
8.5
Entertainment
7.4
Comfort
7.9
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Related info for your journey
Find useful and relevant information for your journey from Boston to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Sydney if you plan to visit one of these locationsParramatta
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Boston and Sydney flights
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Top 8 airlines flying from Boston to Sydney
Discover the top 8 airlines that operate flights from Boston to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$1,477 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$703 | Average$772 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,085 | Average$1,459 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,087 | Average$1,443 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,097 | Average$1,460 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,131 | Average$1,403 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,145 | Average$1,502 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,233 | Average$1,553 | FlexibilityNo cancel fee | On-time68% |