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Cheap flights from Boston to Sydney, NS from C$ 1,123

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YQY
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights from Boston to Sydney
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 28 October 2025.

Thu 11/123:40 p.m.BOS - YQY
1 stop7h 28mAir Canada
Thu 18/125:15 a.m.YQY - BOS
1 stop5h 17mAir Canada
Deal found 27/10C$ 1,123

Cheap 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 (YQY). 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 28 October 2025.

Round-trip from

C$ 1,083
Air Canada
  • Air Canada
  • 8/12-11/12
  • 2 total stops
  • 12h 45m total
  • Boston to Sydney
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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 629,999 searches. Data last updated 28 October 2025.
Use the filters below to find and compare flights from Boston to Sydney that are best for you.

Fly from

Boston

Fly to

Sydney

Route

Depart

Return

Price

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Thu 11/12

3:40 p.m.-12:08 a.m.

1 stop7h 28m

Sydney

Thu 18/12

5:15 a.m.-9:32 a.m.

1 stop5h 17m

C$ 1,123

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

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.
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.

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.

  • How long is the flight from Boston to Sydney, Nova Scotia?

    A quick flight from Boston to Sydney, Nova Scotia can take about 7h 28m. Air Canada provides one of the quickest options available for as low as C$ 1,123. There are 967 km between Boston and Sydney, Nova Scotia.

  • Can I find deals for flights from Boston to Sydney that include hotel bookings?

    Yes. In addition to deals on Boston to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Sydney.

  • Can I find deals for business class flights from Boston to Sydney?

    Yes. Cheapflights offers flight deals from Boston to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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When you search for this flight from Boston to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Boston to Sydney?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Sydney.

Can Cheapflights find flights from Boston to Sydney with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to Sydney flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Boston to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Boston today and book when prices fit your budget.

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