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 21m.

What airlines fly to Sydney?

Qantas Airways, United Airlines and Delta 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 40% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 9 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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 23m.

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

Dallas (DFW) was the most common stop: 59% of momondo users choosing 1-stop flights on this route connected there.

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

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

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 May 2026, there are 9 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.

$692 Cheap Flights from Boston to Sydney in 2026

Q: 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 $1,628 to $1,262. The lowest price recently found on this route was $1,183.

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10:35 am - 7:20 am

BOS

SYD

30h 45m

2 stops

9:20 am - 9:45 am

SYD

BOS

38h 25m

2 stops

$1,183Air Canada

Wed, Jun 3 - Sun, Jun 7

10:35 am - 7:20 am

BOS

SYD

30h 45m

2 stops

9:20 am - 9:45 am

SYD

BOS

38h 25m

2 stops

$1,209Air Canada

Mon, Jun 1 - Mon, Jun 15

10:35 am - 7:20 am

BOS

SYD

30h 45m

2 stops

9:20 am - 9:45 am

SYD

BOS

38h 25m

2 stops

$1,210Air Canada

Mon, Jun 1 - Mon, Jun 15

5:10 am - 7:20 am

BOS

SYD

36h 10m

2 stops

9:20 am - 9:45 am

SYD

BOS

38h 25m

2 stops

$1,215Air Canada

Mon, Jun 1 - Sun, Jun 7

5:50 am - 7:20 am

BOS

SYD

35h 30m

3 stops

9:20 am - 9:45 am

SYD

BOS

38h 25m

2 stops

$1,218Air Canada

Mon, Jun 1 - Sun, Jun 7

5:50 am - 7:20 am

BOS

SYD

35h 30m

2 stops

9:20 am - 9:27 pm

SYD

BOS

50h 07m

2 stops

$1,220Air Canada

Tue, Jun 2 - Wed, Jun 10

10:35 am - 7:20 am

BOS

SYD

30h 45m

3 stops

9:20 am - 9:45 am

SYD

BOS

38h 25m

2 stops

$1,221Air Canada

Wed, Jun 3 - Sun, Jun 7

7:15 pm - 7:20 am

BOS

SYD

46h 05m

2 stops

9:20 am - 2:41 pm

SYD

BOS

43h 21m

2 stops

$1,224Air Canada

Sat, Aug 8 - Sun, Aug 30

7:15 pm - 7:20 am

BOS

SYD

46h 05m

2 stops

9:20 am - 2:41 pm

SYD

BOS

43h 21m

2 stops

$1,225Air Canada

Sat, Aug 8 - Sun, Aug 30

10:35 am - 7:20 am

BOS

SYD

30h 45m

2 stops

9:20 am - 9:50 am

SYD

BOS

38h 30m

2 stops

$1,227Multiple Airlines

Mon, Jun 8 - Tue, Jun 30

Etihad Airways flights from Boston to Sydney

Our best Etihad Airways deals on Boston to Sydney flight tickets

Etihad Airways

Aug 23

BOS4:25 pmBoston Logan Intl

34h 25m

1 stop

SYD4:50 pmSydney Kingsford Smith

Sep 1

SYD9:30 pmSydney Kingsford Smith

31h 10m

1 stop

BOS2:40 pmBoston Logan Intl

$1,272

Etihad Airways

Aug 23

BOS4:25 pmBoston Logan Intl

47h 45m

1 stop

SYD6:10 amSydney Kingsford Smith

Sep 2

SYD3:40 pmSydney Kingsford Smith

37h 00m

1 stop

BOS2:40 pmBoston Logan Intl

$1,300

Etihad Airways

Aug 6

BOS4:25 pmBoston Logan Intl

47h 45m

1 stop

SYD6:10 amSydney Kingsford Smith

Aug 20

SYD9:30 pmSydney Kingsford Smith

31h 10m

1 stop

BOS2:40 pmBoston Logan Intl

$1,318

ANA flights from Boston to Sydney

Our best ANA deals on Boston to Sydney flight tickets

ANA

Jul 6

BOS8:15 amBoston Logan Intl

44h 55m

2 stops

SYD7:10 pmSydney Kingsford Smith

Jul 13

SYD8:55 pmSydney Kingsford Smith

31h 12m

2 stops

BOS2:07 pmBoston Logan Intl

$1,278

ANA

Aug 23

BOS12:27 pmBoston Logan Intl

30h 58m

2 stops

SYD9:25 amSydney Kingsford Smith

Aug 30

SYD8:55 pmSydney Kingsford Smith

36h 24m

2 stops

BOS7:19 pmBoston Logan Intl

$1,285

ANA

Aug 23

BOS8:05 amBoston Logan Intl

45h 05m

2 stops

SYD7:10 pmSydney Kingsford Smith

Sep 1

SYD11:45 amSydney Kingsford Smith

40h 22m

2 stops

BOS2:07 pmBoston Logan Intl

$1,311

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Wed 6/3

10:35 am-7:20 am

2 stops30h 45m

Sydney Kingsford Smith

Sun 6/7

9:20 am-9:45 am

2 stops38h 25m

$1,183

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 6/1

10:35 am-7:20 am

2 stops30h 45m

Sydney Kingsford Smith

Mon 6/15

9:20 am-9:45 am

2 stops38h 25m

$1,209

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 6/1

10:35 am-7:20 am

2 stops30h 45m

Sydney Kingsford Smith

Mon 6/15

9:20 am-9:45 am

2 stops38h 25m

$1,210

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 6/1

5:10 am-7:20 am

2 stops36h 10m

Sydney Kingsford Smith

Sun 6/7

9:20 am-9:45 am

2 stops38h 25m

$1,215

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 6/1

5:50 am-7:20 am

3 stops35h 30m

Sydney Kingsford Smith

Sun 6/7

9:20 am-9:45 am

2 stops38h 25m

$1,218

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Tue 6/2

5:50 am-7:20 am

2 stops35h 30m

Sydney Kingsford Smith

Wed 6/10

9:20 am-9:27 pm

2 stops50h 07m

$1,220

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Wed 6/3

10:35 am-7:20 am

3 stops30h 45m

Sydney Kingsford Smith

Sun 6/7

9:20 am-9:45 am

2 stops38h 25m

$1,221

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Sat 8/8

7:15 pm-7:20 am

2 stops46h 05m

Sydney Kingsford Smith

Sun 8/30

9:20 am-2:41 pm

2 stops43h 21m

$1,224

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Sat 8/8

7:15 pm-7:20 am

2 stops46h 05m

Sydney Kingsford Smith

Sun 8/30

9:20 am-2:41 pm

2 stops43h 21m

$1,225

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 6/8

10:35 am-7:20 am

2 stops30h 45m

Sydney Kingsford Smith

Tue 6/30

9:20 am-9:50 am

2 stops38h 30m

$1,227

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?

What is the cheapest month to fly to Sydney?

In general, September 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 $1,206. If you are unable to visit Sydney during the month of September, then departing from Boston during the month March is also very affordable. Most momondo users find prices during this month for around $1,293.

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 $1,477 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 $1,310 on momondo.

Can stopping save me money on Boston to Sydney flights?

You could potentially save up to 9% 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 May 2026, prices for Boston to Sydney flights are approximately 44% 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

Fastest flight time	22h 42m
Direct flights	None

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 May 2026, there are 9 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 36% of the total bookings. Other popular airlines include United Airlines with 30%, Delta with 12%, and American Airlines with 11%.

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
JetBlue	PriceFrom $179	Free Cancellation	Rating 7.1 2,980 reviews	Search JetBlue flights
Delta	PriceFrom $312	Free Cancellation	Rating 7.9 8,428 reviews	Search Delta flights
Fiji Airways	PriceFrom $727	Free Cancellation	Rating 8.1 242 reviews	Search Fiji Airways flights
Air Canada	PriceFrom $907	Free Cancellation	Rating 7.1 11,086 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,081	Free Cancellation	Rating 7.5 1,042 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,145	Free Cancellation	Rating 7.4 9,751 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,147	Free Cancellation	Rating 7.1 11,630 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,159	Free Cancellation	Rating 8.0 648 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,233	Free Cancellation	Rating 7.4 3,726 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 $692

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 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Etihad Airways flights from Boston to Sydney

Our best Etihad Airways deals on Boston to Sydney flight tickets

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Our best ANA deals on Boston to Sydney flight tickets

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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

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

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

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

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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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