What airlines fly to Sydney?

Qantas Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Sydney from Boston according to our data. Qantas Airways is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 8 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Boston and Sydney?

Dallas (DFW) was the most common stop: 55% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Boston to Sydney?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 23h 14m.

What is the cheapest airline that flies from Boston Logan Intl to Sydney Kingsford Smith?

Qantas Airways, American Airlines, and United Airlines are the most popular carriers operating from Boston Logan Intl to Sydney Kingsford Smith

Which layover airport offers the lowest fares from Boston to Sydney?

Flights via Houston (IAH) offer the lowest average round-trip price of $1,260.

Which layover airport has the shortest connection time from Boston to Sydney?

San Francisco (SFO) has the shortest average layover time for this route: 1h 22m.

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

Prices for flights from Boston Logan Intl Airport to Sydney Kingsford Smith Airport were last updated today.

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

As of August 2026, there are 8 operators available to choose from for flights from Boston Logan Intl Airport to Sydney Kingsford Smith Airport.

How old do you have to be to fly from Boston Logan Intl Airport to Sydney Kingsford Smith 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 Kingsford Smith Airport.

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

The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$567 Cheap Flights from Boston to Sydney in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Sydney

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3:30 pm - 8:35 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

26h 05m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:20 am - 9:28 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

26h 08m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,070Air Canada

Sun, Oct 25 - Thu, Oct 29

10:35 am - 8:35 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

31h 00m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:20 am - 9:58 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 38m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,077Air Canada

Sun, Oct 25 - Thu, Oct 29

12:45 pm - 8:20 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

28h 35m2 stops Chicago O'Hare Intl Vancouver Intl

10:20 am - 9:58 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 38m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,096Multiple Airlines

Wed, Oct 14 - Wed, Oct 28

12:45 pm - 8:20 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

28h 35m2 stops Chicago O'Hare Intl Vancouver Intl

10:20 am - 9:58 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 38m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,104Multiple Airlines

Wed, Oct 14 - Wed, Oct 28

7:40 pm - 9:35 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

45h 55m1 stop Toronto Pearson Intl

11:20 am - 9:58 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 38m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,199Air New Zealand

Sat, Nov 21 - Sun, Nov 29

7:05 pm - 8:35 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

46h 30m1 stop Toronto Pearson Intl

11:20 am - 9:28 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

26h 08m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,199Air New Zealand

Sat, Oct 24 - Mon, Nov 2

8:40 pm - 6:20 pmBOS Boston Logan Intl-SYD Sydney Kingsford Smith

29h 40m1 stop Doha Hamad Intl

10:10 pm - 1:55 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

31h 45m1 stop Doha Hamad Intl

$1,267Qatar Airways

Wed, Feb 10 - Thu, Feb 18

8:40 pm - 7:20 pmBOS Boston Logan Intl-SYD Sydney Kingsford Smith

30h 40m1 stop Doha Hamad Intl

3:50 pm - 1:55 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 05m1 stop Doha Hamad Intl

$1,274Qatar Airways

Mon, Jan 25 - Tue, Mar 2

2:25 pm - 9:00 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

27h 35m1 stop Los Angeles

11:10 am - 4:25 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

21h 15m1 stop Los Angeles

$1,284Qantas Airways

Tue, Oct 27 - Tue, Nov 24

2:25 pm - 9:00 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

27h 35m1 stop Los Angeles

11:20 am - 4:29 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

21h 09m1 stop Los Angeles

$1,284Qantas Airways

Tue, Oct 27 - Tue, Nov 10

Cheap last minute flights

Enter your travel dates to find the best prices.

6:13 pm - 6:55 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

22h 42m1 stop San Francisco

10:20 am - 10:59 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

26h 39m1 stop San Francisco

$1,230United Airlines

Sun, Aug 30 - Mon, Sep 14

3:30 pm - 7:00 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

25h 30m2 stops Newark Los Angeles

9:30 am - 9:59 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

26h 29m2 stops Los Angeles Newark

$1,230United Airlines

Sun, Aug 30 - Mon, Sep 14

3:35 pm - 7:20 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

25h 45m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

9:20 am - 9:50 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 30m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,380Air Canada

Tue, Sep 1 - Wed, Sep 30

3:35 pm - 7:20 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

25h 45m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

9:20 am - 9:50 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 30m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,380Air Canada

Tue, Sep 1 - Tue, Sep 15

12:41 pm - 7:20 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

28h 39m2 stops Newark Vancouver Intl

9:20 am - 9:50 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 30m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,381Multiple Airlines

Tue, Sep 1 - Wed, Sep 30

12:41 pm - 7:20 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

28h 39m2 stops Newark Vancouver Intl

9:20 am - 9:50 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

38h 30m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,389Multiple Airlines

Tue, Sep 1 - Wed, Sep 30

4:59 pm - 7:05 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

24h 06m1 stop Los Angeles

10:00 pm - 11:28 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

39h 28m2 stops Melbourne Los Angeles

$1,469Qantas Airways

Sun, Aug 30 - Mon, Sep 14

8:15 am - 8:45 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

34h 30m2 stops Los Angeles Auckland Intl

10:20 am - 7:44 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

23h 24m1 stop San Francisco

$1,619Air New Zealand

Tue, Sep 1 - Wed, Sep 30

4:59 pm - 7:05 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

24h 06m1 stop Los Angeles

10:00 pm - 11:43 pmSYD Sydney Kingsford Smith-BOS Boston Logan Intl

40h 43m2 stops Melbourne Los Angeles

$7,353Qantas Airways

Tue, Sep 1 - Sun, Oct 4

7:45 am - 8:45 amBOS Boston Logan Intl-SYD Sydney Kingsford Smith

35h 00m2 stops San Francisco Auckland Intl

9:55 am - 12:59 amSYD Sydney Kingsford Smith-BOS Boston Logan Intl

30h 04m2 stops Auckland Intl Los Angeles

$8,673Air New Zealand

Tue, Sep 1 - Sun, Oct 4

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Air Canada flights from Boston to Sydney

Our best Air Canada deals on Boston to Sydney flight tickets

Air Canada

Oct 25

BOS3:30 pmBoston Logan Intl

26h 05m

2 stops

SYD8:35 amSydney Kingsford Smith

Oct 29

SYD10:20 amSydney Kingsford Smith

26h 08m

2 stops

BOS9:28 pmBoston Logan Intl

$1,070

Air Canada

Oct 25

BOS10:35 amBoston Logan Intl

31h 00m

2 stops

SYD8:35 amSydney Kingsford Smith

Oct 29

SYD10:20 amSydney Kingsford Smith

38h 38m

3 stops

BOS9:58 amBoston Logan Intl

$1,077

Air Canada

Oct 14

BOS10:40 amBoston Logan Intl

30h 40m

2 stops

SYD8:20 amSydney Kingsford Smith

Oct 21

SYD10:20 amSydney Kingsford Smith

26h 06m

2 stops

BOS9:26 pmBoston Logan Intl

$1,094

Qatar Airways flights from Boston to Sydney

Our best Qatar Airways deals on Boston to Sydney flight tickets

Qatar Airways

Sep 6

BOS10:00 pmBoston Logan Intl

30h 50m

2 stops

SYD6:50 pmSydney Kingsford Smith

Sep 20

SYD2:50 pmSydney Kingsford Smith

38h 25m

1 stop

BOS3:15 pmBoston Logan Intl

$1,484

Qatar Airways

Sep 9

BOS10:00 pmBoston Logan Intl

42h 30m

1 stop

SYD6:30 amSydney Kingsford Smith

Sep 22

SYD2:50 pmSydney Kingsford Smith

38h 25m

1 stop

BOS3:15 pmBoston Logan Intl

$1,505

Qatar Airways

Sep 9

BOS10:00 pmBoston Logan Intl

42h 30m

1 stop

SYD6:30 amSydney Kingsford Smith

Sep 22

SYD11:00 amSydney Kingsford Smith

42h 15m

2 stops

BOS3:15 pmBoston Logan Intl

$1,518

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Sun 10/25

3:30 pm-8:35 am

2 stops26h 05m

Sydney Kingsford Smith

Thu 10/29

10:20 am-9:28 pm

2 stops26h 08m

$1,070

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Sun 10/25

10:35 am-8:35 am

2 stops31h 00m

Sydney Kingsford Smith

Thu 10/29

10:20 am-9:58 am

3 stops38h 38m

$1,077

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Wed 10/14

12:45 pm-8:20 am

2 stops28h 35m

Sydney Kingsford Smith

Wed 10/28

10:20 am-9:58 am

2 stops38h 38m

$1,096

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Wed 10/14

12:45 pm-8:20 am

2 stops28h 35m

Sydney Kingsford Smith

Wed 10/28

10:20 am-9:58 am

3 stops38h 38m

$1,104

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Sat 11/21

7:40 pm-9:35 am

1 stop45h 55m

Sydney Kingsford Smith

Sun 11/29

11:20 am-9:58 am

2 stops38h 38m

$1,199

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Sat 10/24

7:05 pm-8:35 am

1 stop46h 30m

Sydney Kingsford Smith

Mon 11/2

11:20 am-9:28 pm

2 stops26h 08m

$1,199

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Wed 2/10

8:40 pm-6:20 pm

1 stop29h 40m

Sydney Kingsford Smith

Thu 2/18

10:10 pm-1:55 pm

1 stop31h 45m

$1,267

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Mon 1/25

8:40 pm-7:20 pm

1 stop30h 40m

Sydney Kingsford Smith

Tue 3/2

3:50 pm-1:55 pm

1 stop38h 05m

$1,274

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Tue 10/27

2:25 pm-9:00 am

1 stop27h 35m

Sydney Kingsford Smith

Tue 11/24

11:10 am-4:25 pm

1 stop21h 15m

$1,284

Quickest round-trip

BostonSydney

BOS Boston Logan Intl - SYD Sydney Kingsford Smith

BOSSYD

Boston Logan Intl

Tue 10/27

2:25 pm-9:00 am

1 stop27h 35m

Sydney Kingsford Smith

Tue 11/10

11:20 am-4:29 pm

1 stop21h 09m

$1,284

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to Sydney

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

Prices

Airlines

Layovers

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

Prices are currently low for flights on this route.

Typical prices usually range from $1,220 to $1,460.
The lowest price recently found on this route was $1,070.

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Boston to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,268. If you are unable to visit Sydney during the month of March, then departing from Boston during the month February is also very affordable. Most momondo users find prices during this month for around $1,318.

How far in advance should I book a flight from Boston to Sydney?

You are more likely to see cheaper flights to Sydney from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,465 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Boston for as low as $1,366 on momondo.

Can stopping save me money on Boston to Sydney flights?

You could potentially save up to 19% on your flight if you consider stops on a Boston to Sydney flight.

How have Boston to Sydney flight prices changed over time?

As of August 2026, prices for Boston to Sydney flights are approximately 42% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Sydney (BOS to SYD) flight deals and tips

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

Best Price Found	$567
Fastest flight time	22h 42m
Direct flights	None

The best one-way flight to Sydney from Boston in the past 72 hours is $567. The best round-trip flight deal from Boston to Sydney found on momondo in the last 72 hours is $1,070.

The fastest flight from Boston to Sydney takes 22h 42m

There are no direct flights from Boston to Sydney. There are no popular flight routes from Boston to Sydney.

Search flight deals

Frequently asked questions about flying from Boston to Sydney

How far is Boston Logan Intl to Sydney Kingsford Smith by plane?
Boston Logan Intl and Sydney Kingsford Smith are 10084.4 mi apart from one another. Typically, this will take 22h 42m by plane in normal conditions.
When did momondo last update prices for flights from Boston Logan Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Boston Logan Intl Airport to Sydney Kingsford Smith Airport were last updated today.
How many operators does momondo search for flights from Boston Logan Intl Airport to Sydney Kingsford Smith Airport?
As of August 2026, there are 8 operators available to choose from for flights from Boston Logan Intl Airport to Sydney Kingsford Smith Airport.
How old do you have to be to fly from Boston Logan Intl Airport to Sydney Kingsford Smith 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 Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Boston to Sydney?
Based on momondo bookings for flights between Boston and Sydney, the leading airline is Qantas Airways, making up 38% of the total bookings. Other popular airlines include United Airlines with 29%, American Airlines with 11%, and Delta with 10%.

Best airlines flying from Boston to Sydney

Compare and see reviews for airlines that fly from Boston to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $318	Free Cancellation	Rating 7.8 8,532 reviews	Search Delta flights
Fiji Airways	PriceFrom $703	Free Cancellation	Rating 8.0 256 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $1,086	Free Cancellation	Rating 7.5 1,085 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $1,087	Free Cancellation	Rating 7.1 11,540 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,097	Free Cancellation	Rating 8.0 664 reviews	Search Air New Zealand flights
United Airlines	PriceFrom $1,145	Free Cancellation	Rating 7.4 10,127 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,147	Free Cancellation	Rating 7.1 12,003 reviews	Search American Airlines flights
Qatar Airways	PriceFrom $1,233	Free Cancellation	Rating 7.4 3,731 reviews	Search Qatar Airways flights

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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?

Yes. All flights to Sydney from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Sydney from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Boston to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Boston to Sydney from $567

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 2/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Boston to Sydney

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Air Canada flights from Boston to Sydney

Our best Air Canada deals on Boston to Sydney flight tickets

Qatar Airways flights from Boston to Sydney

Our best Qatar Airways deals on Boston to Sydney flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Boston to Sydney that are best for you.

See travel insights to Sydney from

How to get the cheapest flight ticket from Boston to Sydney

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

What is the cheapest month to fly to Sydney?

How far in advance should I book a flight from Boston to Sydney?

Can stopping save me money on Boston to Sydney flights?

How have Boston to Sydney flight prices changed over time?

What is the cheapest airline that flies from Boston Logan Intl to Sydney Kingsford Smith?

What airlines fly to Sydney?

Which airport is the most popular layover for flights between Boston and Sydney?

Which layover airport offers the lowest fares from Boston to Sydney?

Which layover airport has the shortest travel time from Boston to Sydney?

Which layover airport has the shortest connection time from Boston to Sydney?

When to book flights from Boston to Sydney

Cheap Boston to Sydney (BOS to SYD) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Boston to Sydney

Best airlines flying from Boston to Sydney

Compare and see reviews for airlines that fly from Boston to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales

Fly your favorite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sydney

List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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