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Cheap flights from Boston to Sydney from $627

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Sydney departing on 6/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Boston to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:35 am - 4:39 pm
BOS
-
YQY
5h 04m
1 stop
Air Canada Logo
5:20 pm - 9:27 pm
YQY
-
BOS
5h 07m
1 stop
$627Air Canada
Wed, Jun 3 - Sat, Jun 6
Air Canada Logo
10:40 am - 4:39 pm
BOS
-
YQY
4h 59m
1 stop
Air Canada Logo
5:00 am - 9:53 am
YQY
-
BOS
5h 53m
1 stop
$632Air Canada
Fri, Aug 14 - Sun, Aug 16
Air Canada Logo
5:10 am - 4:39 pm
BOS
-
YQY
10h 29m
2 stops
Air Canada Logo
5:20 pm - 9:27 pm
YQY
-
BOS
5h 07m
1 stop
$635Air Canada
Wed, Jun 3 - Sat, Jun 6
Air Canada Logo
5:10 am - 4:39 pm
BOS
-
YQY
10h 29m
2 stops
Air Canada Logo
5:20 pm - 9:27 pm
YQY
-
BOS
5h 07m
1 stop
$636Air Canada
Wed, Jun 3 - Sat, Jun 6
Air Canada Logo
5:00 pm - 12:09 am
BOS
-
YQY
6h 09m
1 stop
Air Canada Logo
5:00 am - 9:54 am
YQY
-
BOS
5h 54m
1 stop
$637Air Canada
Fri, Jun 12 - Sun, Jun 14
Air Canada Logo
5:10 am - 4:39 pm
BOS
-
YQY
10h 29m
2 stops
Air Canada Logo
5:00 am - 9:54 am
YQY
-
BOS
5h 54m
1 stop
$640Air Canada
Fri, Jun 12 - Sun, Jun 14
Air Canada Logo
10:40 am - 4:39 pm
BOS
-
YQY
4h 59m
1 stop
Air Canada Logo
5:20 pm - 8:44 am
YQY
-
BOS
16h 24m
2 stops
$651Air Canada
Mon, Jul 20 - Sun, Jul 26
Air Canada Logo
10:50 am - 12:07 am
BOS
-
YQY
12h 17m
1 stop
Air Canada Logo
5:20 pm - 9:27 pm
YQY
-
BOS
5h 07m
1 stop
$656Air Canada
Thu, Jul 16 - Mon, Jul 20
Air Canada Logo
5:50 am - 4:14 pm
BOS
-
YQY
9h 24m
1 stop
Air Canada Logo
5:20 pm - 9:27 pm
YQY
-
BOS
5h 07m
1 stop
$657Air Canada
Wed, May 13 - Wed, May 20
Air Canada Logo
5:00 pm - 12:09 am
BOS
-
YQY
6h 09m
1 stop
Air Canada Logo
5:20 pm - 9:54 am
YQY
-
BOS
17h 34m
2 stops
$665Air Canada
Thu, Jun 11 - Sun, Jun 14

Air Canada flights from Boston to Sydney, Nova Scotia

Our best Air Canada deals on Boston to Sydney, Nova Scotia flight tickets
Air Canada
Jun 3
BOS10:35 amBoston Logan Intl
5h 04m
1 stop
YQY4:39 pmSydney
Jun 6
YQY5:20 pmSydney
5h 07m
1 stop
BOS9:27 pmBoston Logan Intl
$627
Air Canada
Aug 14
BOS10:40 amBoston Logan Intl
4h 59m
1 stop
YQY4:39 pmSydney
Aug 16
YQY5:00 amSydney
5h 53m
1 stop
BOS9:53 amBoston Logan Intl
$632
Air Canada
Jun 3
BOS5:10 amBoston Logan Intl
10h 29m
2 stops
YQY4:39 pmSydney
Jun 6
YQY5:20 pmSydney
5h 07m
1 stop
BOS9:27 pmBoston Logan Intl
$635

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Sydney, Nova Scotia 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, momondo users made 832,500 searches. Data last updated April 1, 2026.
Use the filters below to find and compare flights from Boston to Sydney, Nova Scotia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Wed 6/3

10:35 am-4:39 pm

1 stop5h 04m

Sydney

Sat 6/6

5:20 pm-9:27 pm

1 stop5h 07m

$627

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Fri 8/14

10:40 am-4:39 pm

1 stop4h 59m

Sydney

Sun 8/16

5:00 am-9:53 am

1 stop5h 53m

$632

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Wed 6/3

5:10 am-4:39 pm

2 stops10h 29m

Sydney

Sat 6/6

5:20 pm-9:27 pm

1 stop5h 07m

$635

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Wed 6/3

5:10 am-4:39 pm

2 stops10h 29m

Sydney

Sat 6/6

5:20 pm-9:27 pm

1 stop5h 07m

$636

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Fri 6/12

5:00 pm-12:09 am

1 stop6h 09m

Sydney

Sun 6/14

5:00 am-9:54 am

1 stop5h 54m

$637

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Fri 6/12

5:10 am-4:39 pm

2 stops10h 29m

Sydney

Sun 6/14

5:00 am-9:54 am

1 stop5h 54m

$640

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Mon 7/20

10:40 am-4:39 pm

1 stop4h 59m

Sydney

Sun 7/26

5:20 pm-8:44 am

2 stops16h 24m

$651

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Thu 7/16

10:50 am-12:07 am

1 stop12h 17m

Sydney

Mon 7/20

5:20 pm-9:27 pm

1 stop5h 07m

$656

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Wed 5/13

5:50 am-4:14 pm

1 stop9h 24m

Sydney

Wed 5/20

5:20 pm-9:27 pm

1 stop5h 07m

$657

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Thu 6/11

5:00 pm-12:09 am

1 stop6h 09m

Sydney

Sun 6/14

5:20 pm-9:54 am

2 stops17h 34m

$665

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Sydney from

How to get the cheapest flight ticket from Boston to Sydney, Nova Scotia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and Sydney, Nova Scotia?

When to book flights from Boston to Sydney, Nova Scotia

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Sydney, Nova Scotia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Sydney, Nova Scotia (BOS to YQY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Sydney, Nova Scotia

Fastest flight time

4h 59m

Direct flights

None
The fastest flight from Boston to Sydney, Nova Scotia takes 4h 59m
There are no direct flights from Boston to Sydney, Nova Scotia. There are no popular flight routes from Boston to Sydney, Nova Scotia.
Search flight deals

Frequently asked questions about flying from Boston to Sydney, Nova Scotia

  • How far is Boston Logan Intl to Sydney by plane?

    Sydney is 596.7 mi away from Boston Logan Intl. Typically, this will take 4h 59m by plane in normal conditions.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Sydney Airport?

    Prices for flights from Boston Logan Intl Airport to Sydney Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Sydney Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Sydney Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Sydney Airport.

  • What documentation or ID do you need to fly to Sydney Airport?

    The travel and health documents required for your trip to Sydney Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boston to Sydney, Nova Scotia?

Best airlines flying from Boston to Sydney, Nova Scotia

Compare and see reviews for airlines that fly from Boston to Sydney, Nova Scotia with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $644Free CancellationRating
7.1
10,872 reviews
Search Air Canada flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Cheticamp
Inverness

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Sydney for you.

Can I find flights from Boston to Sydney with flexible booking policies on momondo?

All flight searches from Boston to Sydney on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boston to Sydney?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Boston.

I’m not ready to book a flight from Boston to Sydney right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Boston and alert you when they change.

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Find better results for your trip to Canada

Airports servicing Nova Scotia

Halifax Intl Airport