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Cheap flights from Boston to Sydney, NS from C$ 345

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 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YQY
30 Apr — 7 May1
1 adult

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 25 April 2025.

Round-trip from

C$ 733

One-way from

C$ 345
25/8-26/8
  • 25/8-26/8
  • 3 total stops
  • 18h 47m total
  • Boston to Sydney
Search Deals
22/7
  • 22/7
  • 2 total stops
  • 26h 40m total
  • Boston to Sydney
Search Deals

Find flight deals from Boston to Sydney

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 25 April 2025.

Mon 25/810:20 a.m.BOS - YQY
2 stops8h 10mMultiple Airlines
Tue 26/88:00 a.m.YQY - BOS
1 stop10h 37mMultiple Airlines
Deal found 25/4C$ 733
Tue 20/54:35 p.m.BOS - YQY
1 stop6h 24mAir Canada
Tue 10/64:30 p.m.YQY - BOS
1 stop6h 27mAir Canada
Deal found 24/4C$ 737
Fri 27/611:16 a.m.BOS - YQY
2 stops30h 35mWestJet
Sat 5/77:40 p.m.YQY - BOS
1 stop23h 00mWestJet
Deal found 24/4C$ 2,797

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 25 April 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

Mon 25/8

10:20 a.m.-7:30 p.m.

2 stops8h 10m

Sydney

Tue 26/8

8:00 a.m.-5:37 p.m.

1 stop10h 37m

C$ 733

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Tue 20/5

4:35 p.m.-11:59 p.m.

1 stop6h 24m

Sydney

Tue 10/6

4:30 p.m.-9:57 p.m.

1 stop6h 27m

C$ 737

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Fri 27/6

11:16 a.m.-6:51 p.m.

2 stops30h 35m

Sydney

Sat 5/7

7:40 p.m.-5:40 p.m.

1 stop23h 00m

C$ 2,797

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Tue 22/7

3:50 p.m.-7:30 p.m.

2 stops26h 40m

C$ 345

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Tue 22/7

10:20 a.m.-3:47 p.m.

1 stop4h 27m

C$ 413

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/4

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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Sydney

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney, Nova Scotia ranges from 89.0 - 167.0 mm per month. December is typically the wettest month, when rainfall can reach 167.0 mm. July is typically the driest time to visit Sydney, Nova Scotia when rainfall is around 89.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, Nova Scotia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

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 25 April 2025.
WestJet
7.2
Good
2,816 reviews
Check prices

Crew

7.9

Comfort

7.0

Entertainment

6.1

Boarding

7.4

Food

6.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2024

LGA - YHZ

They staff were assigned. The flight was on time No entertainment for short travel
WestJet
7.2
Good
2,816 reviews
WestJet
7.2
Good
2,816 reviews
Check prices

Crew

7.9

Comfort

7.0

Entertainment

6.1

Boarding

7.4

Food

6.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2024

LGA - YHZ

They staff were assigned. The flight was on time No entertainment for short travel
Air Canada
7.0
Good
9,206 reviews
WestJet
7.2
Good
2,816 reviews
Check prices

Crew

7.9

Comfort

7.0

Entertainment

6.1

Boarding

7.4

Food

6.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2024

LGA - YHZ

They staff were assigned. The flight was on time No entertainment for short travel

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.

  • What are the cheapest airlines flying from Boston to Sydney, Nova Scotia round-trip?

    Our cheapest airline available from Boston to Sydney, Nova Scotia is Air Canada. Our recent data shows that you can find tickets from as low as C$ 737 on this airline. An additional option worth looking into is WestJet, starting at C$ 2,797.

  • 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.

  • What is the cheapest month to book a flight from Boston to Sydney, Nova Scotia?

    Currently, January is the cheapest month in which you can book a flight from Boston to Sydney, Nova Scotia (average of C$ 375). Flying from Boston to Sydney, Nova Scotia in December is currently the most expensive (average of C$ 682). 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.

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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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