What is the cheapest flight from Boston to Sydney?

In the last 3 days, the lowest price for a flight from Boston to Sydney was C$ 316 for a one-way ticket and C$ 534 for a round-trip. Visit our flight page for the latest deals!>/a>

Which airports will I be using when flying from Boston to Sydney?

On your way to Sydney, you’ll fly out from Boston Logan Intl. You’ll be landing at Sydney. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Boston to Sydney?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Boston to Sydney?

Star Alliance is the only airline alliance operating flights between Boston and Sydney.

How does KAYAK find such low prices on flights from Boston to Sydney?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Sydney. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Sydney?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Boston is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Boston to Sydney?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back to Boston with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Sydney?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

C$ 437 CHEAP FLIGHTS from Boston to Sydney (BOS - YQY)

BOS - YQY

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Cheap Flight Deals from Boston to Sydney (BOS-YQY)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Boston to Sydney

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to Sydney.

Discover the best prices for you by selecting your travel dates on KAYAK.

Choose your dates

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

6h 24m1 stop

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

6h 27m1 stop

C$ 738Air Canada

Find Deal

Tue, 20 May - Tue, 10 Jun

8:45 a.m. - 7:30 p.m.BOS-YQY

9h 45m2 stops

8:00 a.m. - 6:08 p.m.YQY-BOS

11h 08m2 stops

C$ 777

Find Deal

Mon, 21 Jul - Wed, 23 Jul

8:45 a.m. - 7:30 p.m.BOS-YQY

9h 45m2 stops

3:00 p.m. - 9:31 p.m.YQY-BOS

7h 31m2 stops

C$ 791

Find Deal

Thu, 19 Jun - Mon, 23 Jun

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

6h 24m1 stop

4:30 p.m. - 9:55 a.m.YQY-BOS

18h 25m2 stops

C$ 798Air Canada

Find Deal

Tue, 20 May - Tue, 10 Jun

9:45 a.m. - 7:30 p.m.BOS-YQY

8h 45m3 stops

8:00 a.m. - 6:08 p.m.YQY-BOS

11h 08m2 stops

C$ 847

Find Deal

Tue, 20 May - Tue, 10 Jun

8:45 a.m. - 7:30 p.m.BOS-YQY

9h 45m2 stops

8:00 a.m. - 6:08 p.m.YQY-BOS

11h 08m2 stops

C$ 850

Find Deal

Thu, 5 Jun - Tue, 10 Jun

8:45 a.m. - 7:30 p.m.BOS-YQY

9h 45m2 stops

3:00 p.m. - 9:31 p.m.YQY-BOS

7h 31m2 stops

C$ 882

Find Deal

Thu, 15 May - Mon, 19 May

10:00 a.m. - 6:51 p.m.BOS-YQY

31h 51m2 stops

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

23h 00m1 stop

C$ 2,929WestJet

Find Deal

Fri, 27 Jun - Sat, 5 Jul

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

30h 35m2 stops

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

23h 00m1 stop

C$ 2,967WestJet

Find Deal

Fri, 27 Jun - Sat, 5 Jul

6:25 p.m. - 6:51 p.m.BOS-YQY

23h 26m1 stop

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

23h 00m1 stop

C$ 3,392WestJet

Find Deal

Fri, 27 Jun - Sat, 5 Jul

KAYAK's insights & trends for Boston to Sydney flights

Get data-powered insights and trends into flights from Boston to Sydney to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boston to Sydney?

In the past 3 days, the cheapest round-trip tickets from Boston to Sydney were found on Air Canada (C$ 738) and WestJet (C$ 2,929).

Find deals

Cheapest flight	C$ 437

Flight from Boston to Sydney

When to book flights from Boston to Sydney

Are your dates flexible? Find out the best times to travel from Boston to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Boston to Sydney?
In the last 3 days, the lowest price for a flight from Boston to Sydney was C$ 316 for a one-way ticket and C$ 534 for a round-trip.
Which airports will I be using when flying from Boston to Sydney?
On your way to Sydney, you’ll fly out from Boston Logan Intl. You’ll be landing at Sydney.
Which aircraft models fly most regularly from Boston to Sydney?
We unfortunately don’t have that data for this specific route.
Which airline alliances offer flights from Boston to Sydney?
Star Alliance is the only airline alliance operating flights between Boston and Sydney.
How does KAYAK find such low prices on flights from Boston to Sydney?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Sydney.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Sydney?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Boston is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Boston to Sydney?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back to Boston with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Sydney?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.