Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Boston to Sydney from $302

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Sydney departing on 9/9. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Boston to Sydney

Cheap round-trip flights

Air Canada Logo
6:00 am - 3:48 pmBOS-YQY
8h 48m2 stops
Air Canada Logo
4:30 pm - 9:25 pmYQY-BOS
5h 55m1 stop
$751Air Canada
Find Deal
Sat, Sep 13 - Fri, Sep 19
Air Canada Logo
10:40 am - 12:09 amBOS-YQY
12h 29m1 stop
Air Canada Logo
5:15 am - 9:55 amYQY-BOS
5h 40m1 stop
$753Air Canada
Find Deal
Thu, Sep 25 - Sun, Sep 28
Air Canada Logo
6:00 am - 3:54 pmBOS-YQY
8h 54m2 stops
Air Canada Logo
5:15 am - 9:55 amYQY-BOS
5h 40m1 stop
$758Air Canada
Find Deal
Sat, Aug 30 - Sat, Sep 6
Air Canada Logo
6:00 am - 3:48 pmBOS-YQY
8h 48m2 stops
Air Canada Logo
4:30 pm - 9:55 amYQY-BOS
18h 25m2 stops
$762Air Canada
Find Deal
Sat, Sep 13 - Fri, Sep 19
Air Canada Logo
10:20 am - 3:48 pmBOS-YQY
4h 28m1 stop
Air Canada Logo
4:30 pm - 9:25 pmYQY-BOS
5h 55m1 stop
$773Air Canada
Find Deal
Sat, Sep 13 - Fri, Sep 19
Air Canada Logo
4:35 pm - 1:27 amBOS-YQY
7h 52m1 stop
Air Canada Logo
4:30 pm - 9:55 pmYQY-BOS
6h 25m1 stop
$780Air Canada
Find Deal
Tue, Aug 26 - Thu, Sep 4
Air Canada Logo
6:55 pm - 1:27 amBOS-YQY
5h 32m1 stop
Air Canada Logo
5:10 am - 9:55 amYQY-BOS
5h 45m1 stop
$787Air Canada
Find Deal
Sun, Aug 24 - Wed, Aug 27
Logo
3:30 pm - 6:51 pmBOS-YQY
26h 21m3 stops
Logo
7:40 pm - 6:10 pmYQY-BOS
23h 30m2 stops
$979
Find Deal
Fri, Aug 22 - Tue, Aug 26
WestJet Logo
6:30 pm - 6:51 pmBOS-YQY
23h 21m1 stop
WestJet Logo
7:40 pm - 12:18 amYQY-BOS
29h 38m2 stops
$1,152WestJet
Find Deal
Fri, Aug 22 - Tue, Aug 26
WestJet Logo
6:30 pm - 6:51 pmBOS-YQY
23h 21m1 stop
WestJet Logo
7:40 pm - 5:40 pmYQY-BOS
23h 00m1 stop
$1,185WestJet
Find Deal
Fri, Aug 22 - Tue, Aug 26

Air Canada flights from Boston to Sydney, Nova Scotia

Our best Air Canada deals on Boston to Sydney, Nova Scotia flight tickets
Air Canada
Sep 13
BOS6:00 amBoston Logan Intl
8h 48m
2 stops
YQY3:48 pmSydney
Sep 19
YQY4:30 pmSydney
5h 55m
1 stop
BOS9:25 pmBoston Logan Intl
$751
Find similar
Air Canada
Sep 25
BOS10:40 amBoston Logan Intl
12h 29m
1 stop
YQY12:09 amSydney
Sep 28
YQY5:15 amSydney
5h 40m
1 stop
BOS9:55 amBoston Logan Intl
$753
Find similar
Air Canada
Aug 30
BOS6:00 amBoston Logan Intl
8h 54m
2 stops
YQY3:54 pmSydney
Sep 6
YQY5:15 amSydney
5h 40m
1 stop
BOS9:55 amBoston Logan Intl
$758
Find similar

WestJet flights from Boston to Sydney, Nova Scotia

Our best WestJet deals on Boston to Sydney, Nova Scotia flight tickets
WestJet
Aug 22
BOS6:30 pmBoston Logan Intl
23h 21m
1 stop
YQY6:51 pmSydney
Aug 26
YQY7:40 pmSydney
29h 38m
2 stops
BOS12:18 amBoston Logan Intl
$1,152
Find similar
WestJet
Aug 22
BOS6:30 pmBoston Logan Intl
23h 21m
1 stop
YQY6:51 pmSydney
Aug 26
YQY7:40 pmSydney
23h 00m
1 stop
BOS5:40 pmBoston Logan Intl
$1,185
Find similar

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 August 2, 2025.
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

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Sat 9/13

6:00 am-3:48 pm

2 stops8h 48m

Sydney

Fri 9/19

4:30 pm-9:25 pm

1 stop5h 55m

$751

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Thu 9/25

10:40 am-12:09 am

1 stop12h 29m

Sydney

Sun 9/28

5:15 am-9:55 am

1 stop5h 40m

$753

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Sat 8/30

6:00 am-3:54 pm

2 stops8h 54m

Sydney

Sat 9/6

5:15 am-9:55 am

1 stop5h 40m

$758

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Sat 9/13

6:00 am-3:48 pm

2 stops8h 48m

Sydney

Fri 9/19

4:30 pm-9:55 am

2 stops18h 25m

$762

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Sat 9/13

10:20 am-3:48 pm

1 stop4h 28m

Sydney

Fri 9/19

4:30 pm-9:25 pm

1 stop5h 55m

$773

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Tue 8/26

4:35 pm-1:27 am

1 stop7h 52m

Sydney

Thu 9/4

4:30 pm-9:55 pm

1 stop6h 25m

$780

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Sun 8/24

6:55 pm-1:27 am

1 stop5h 32m

Sydney

Wed 8/27

5:10 am-9:55 am

1 stop5h 45m

$787

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Fri 8/22

3:30 pm-6:51 pm

3 stops26h 21m

Sydney

Tue 8/26

7:40 pm-6:10 pm

2 stops23h 30m

$979

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Fri 8/22

6:30 pm-6:51 pm

1 stop23h 21m

Sydney

Tue 8/26

7:40 pm-12:18 am

2 stops29h 38m

$1,152

BostonSydney

BOS - YQY

BOSYQY

Boston Logan Intl

Fri 8/22

6:30 pm-6:51 pm

1 stop23h 21m

Sydney

Tue 8/26

7:40 pm-5:40 pm

1 stop23h 00m

$1,185

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 cheapest day to depart on your flight to Sydney, Nova Scotia?

The cheapest day to depart from Boston to Sydney, Nova Scotia is on a Tuesday when prices can be found for as low as $472. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Sydney, Nova Scotia for around $1,359.

What is the cheapest time of day to depart on your flight to Sydney, Nova Scotia?

According to our data, the cheapest time of day to fly to Sydney, Nova Scotia is in the afternoon. momondo users have found flights departing from Boston to Sydney, Nova Scotia in the afternoon for as low as $918. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Sydney, Nova Scotia, so prices are often more expensive at around $1,030 per ticket.

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

Best Price Found

$302

Fastest flight time

4h 28m

Direct flights

None

Airports in Sydney, Nova Scotia

1 airport
The best one-way flight to Sydney, Nova Scotia from Boston in the past 72 hours is $302. The best round-trip flight deal from Boston to Sydney, Nova Scotia found on momondo in the last 72 hours is $751.
The fastest flight from Boston to Sydney, Nova Scotia takes 4h 28m
There are no direct flights from Boston to Sydney, Nova Scotia. Popular non-direct route for this connection is Boston Logan Intl Airport - Sydney Airport.
There is 1 airport near Sydney, Nova Scotia: Sydney (YQY)
Search flight deals

  • 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 28m 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 $518Free CancellationRating
7.1
9,855 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.

An easier way to manage your Sydney, Nova Scotia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 8/7
Thu 8/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada

Airports servicing Nova Scotia

Halifax Intl Airport