Cheap flights from Sydney to Boston from $866

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Boston departing on 29/1. 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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Air New Zealand Logo
09:55 - 07:20SYD-BOS
37h 25m2 stops
Air New Zealand Logo
08:30 - 08:45BOS-SYD
32h 15m2 stops
$1,563Air New Zealand
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Tue, 11 Nov - Tue, 18 Nov
Qantas Airways Logo
11:20 - 21:00SYD-BOS
25h 40m1 stop
Qantas Airways Logo
08:00 - 09:00BOS-SYD
33h 00m1 stop
$1,643Qantas Airways
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Wed, 14 Jan - Wed, 28 Jan
Air Canada Logo
11:20 - 09:32SYD-BOS
38h 12m3 stops
Air Canada Logo
15:40 - 09:35BOS-SYD
25h 55m2 stops
$1,652Air Canada
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Thu, 12 Feb - Fri, 27 Feb
United Airlines Logo
14:00 - 21:52SYD-BOS
23h 52m2 stops
United Airlines Logo
09:30 - 06:20BOS-SYD
28h 50m2 stops
$1,774United Airlines
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Wed, 14 Jan - Wed, 28 Jan
American Airlines Logo
11:20 - 19:33SYD-BOS
24h 13m2 stops
American Airlines Logo
18:00 - 09:00BOS-SYD
23h 00m1 stop
$1,778American Airlines
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Tue, 10 Feb - Wed, 25 Feb
United Airlines Logo
14:00 - 21:52SYD-BOS
23h 52m2 stops
United Airlines Logo
13:50 - 06:20BOS-SYD
24h 30m1 stop
$1,783United Airlines
Find Deal
Wed, 14 Jan - Wed, 28 Jan
American Airlines Logo
11:20 - 18:52SYD-BOS
23h 32m2 stops
American Airlines Logo
18:00 - 09:00BOS-SYD
23h 00m1 stop
$1,830American Airlines
Find Deal
Thu, 12 Feb - Fri, 27 Feb
Air Canada Logo
10:25 - 22:37SYD-BOS
27h 12m2 stops
Air Canada Logo
06:15 - 09:35BOS-SYD
60h 20m2 stops
$1,875Air Canada
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Thu, 30 Oct - Sat, 1 Nov
Cathay Pacific Logo
11:05 - 22:00SYD-BOS
26h 55m1 stop
Cathay Pacific Logo
00:30 - 20:50BOS-SYD
28h 20m1 stop
$2,093Cathay Pacific
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Tue, 11 Nov - Mon, 17 Nov
Cathay Pacific Logo
11:05 - 22:00SYD-BOS
26h 55m1 stop
Cathay Pacific Logo
00:30 - 09:35BOS-SYD
41h 05m1 stop
$2,159Cathay Pacific
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Thu, 12 Feb - Thu, 26 Feb

United Airlines flights from Sydney to Boston

Our best United Airlines deals on Sydney to Boston flight tickets
United Airlines
14 Jan
SYD14:00Sydney Kingsford Smith
23h 52m
2 stops
BOS21:52Boston Logan Intl
28 Jan
BOS09:30Boston Logan Intl
28h 50m
2 stops
SYD06:20Sydney Kingsford Smith
United Airlines
14 Jan
SYD14:00Sydney Kingsford Smith
23h 52m
2 stops
BOS21:52Boston Logan Intl
28 Jan
BOS13:50Boston Logan Intl
24h 30m
1 stop
SYD06:20Sydney Kingsford Smith
United Airlines
14 Jan
SYD12:10Sydney Kingsford Smith
27h 36m
2 stops
BOS23:46Boston Logan Intl
28 Jan
BOS13:50Boston Logan Intl
24h 30m
1 stop
SYD06:20Sydney Kingsford Smith

Alaska Airlines flights from Sydney to Boston

Our best Alaska Airlines deals on Sydney to Boston flight tickets
Alaska Airlines
14 Jan
SYD21:40Sydney Kingsford Smith
34h 40m
2 stops
BOS16:20Boston Logan Intl
28 Jan
BOS16:25Boston Logan Intl
35h 20m
3 stops
SYD19:45Sydney Kingsford Smith
Alaska Airlines
14 Jan
SYD21:40Sydney Kingsford Smith
34h 40m
2 stops
BOS16:20Boston Logan Intl
28 Jan
BOS16:25Boston Logan Intl
35h 20m
3 stops
SYD19:45Sydney Kingsford Smith
Alaska Airlines
14 Jan
SYD21:40Sydney Kingsford Smith
33h 45m
2 stops
BOS15:25Boston Logan Intl
28 Jan
BOS16:25Boston Logan Intl
35h 20m
3 stops
SYD19:45Sydney Kingsford Smith

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Boston 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 78,305 searches. Data last updated 16 October 2025.
Use the filters below to find and compare flights from Sydney to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 11/11

09:55-07:20

2 stops37h 25m

Boston Logan Intl

Tue 18/11

08:30-08:45

2 stops32h 15m

$1,563

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 14/1

11:20-21:00

1 stop25h 40m

Boston Logan Intl

Wed 28/1

08:00-09:00

1 stop33h 00m

$1,643

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 12/2

11:20-09:32

3 stops38h 12m

Boston Logan Intl

Fri 27/2

15:40-09:35

2 stops25h 55m

$1,652

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 14/1

14:00-21:52

2 stops23h 52m

Boston Logan Intl

Wed 28/1

09:30-06:20

2 stops28h 50m

$1,774

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 10/2

11:20-19:33

2 stops24h 13m

Boston Logan Intl

Wed 25/2

18:00-09:00

1 stop23h 00m

$1,778

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 14/1

14:00-21:52

2 stops23h 52m

Boston Logan Intl

Wed 28/1

13:50-06:20

1 stop24h 30m

$1,783

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 12/2

11:20-18:52

2 stops23h 32m

Boston Logan Intl

Fri 27/2

18:00-09:00

1 stop23h 00m

$1,830

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 30/10

10:25-22:37

2 stops27h 12m

Boston Logan Intl

Sat 1/11

06:15-09:35

2 stops60h 20m

$1,875

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 11/11

11:05-22:00

1 stop26h 55m

Boston Logan Intl

Mon 17/11

00:30-20:50

1 stop28h 20m

$2,093

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 12/2

11:05-22:00

1 stop26h 55m

Boston Logan Intl

Thu 26/2

00:30-09:35

1 stop41h 05m

$2,159

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from Sydney to Boston

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 Sydney and Boston?

What is the cheapest month to fly to Boston?

In general, October is the cheapest month to fly from Sydney to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,655. The month of March is another great option to travel to Boston, with average flight prices from Sydney averaging around $1,807.

What is the cheapest day to depart on your flight to Boston?

On average, the least expensive day to fly to Boston from Sydney is on a Sunday. momondo users have found tickets for Sunday departures for as low as $2,042. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $2,597. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boston.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Sydney to Boston in the afternoon for as low as $2,001. 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 Boston, so prices are often more expensive at around $2,199 per ticket.

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

You are more likely to see cheaper flights to Boston from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $2,008 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Sydney for as low as $1,775 on momondo.

Can stopping save me money on Sydney to Boston flights?

You could potentially save up to 6% on your flight if you consider stops on a Sydney to Boston flight.

How have Sydney to Boston flight prices changed over time?

As of October 2025, prices for Sydney to Boston flights are approximately 39% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to Boston

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

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

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

Direct flights

None
There are no direct flights from Sydney to Boston. There are no popular flight routes from Sydney to Boston.
  • How far is Sydney Kingsford Smith to Boston Logan Intl by plane?

    Sydney Kingsford Smith and Boston Logan Intl are 16229.2 km apart from one another. In terms of flight time, this usually takes a little over 21h 15m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The required travel and health documents for your Boston Logan Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Boston Logan Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Sydney to Boston

Compare and see reviews for airlines that fly from Sydney to Boston with momondo
Airline
Rating
Free cancellation
Price
Hawaiian AirlinesPriceFrom $989Free cancellationRating
7.8
2,781 reviews
Search Hawaiian Airlines flights
Virgin AustraliaPriceFrom $1,104Free cancellationRating
7.6
421 reviews
Search Virgin Australia flights
Air CanadaPriceFrom $1,263Free cancellationRating
7.1
10,307 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,270Free cancellationRating
7.4
8,982 reviews
Search United Airlines flights
DeltaPriceFrom $1,271Free cancellationRating
7.9
7,980 reviews
Search Delta flights
American AirlinesPriceFrom $1,357Free cancellationRating
7.2
11,040 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,612Free cancellationRating
8.0
515 reviews
Search Air New Zealand flights
Qantas AirwaysPriceFrom $1,668Free cancellationRating
7.5
918 reviews
Search Qantas Airways flights
Japan AirlinesPriceFrom $1,809Free cancellationRating
8.3
1,579 reviews
Search Japan Airlines flights
Cathay PacificPriceFrom $1,902Free cancellationRating
7.6
1,028 reviews
Search Cathay Pacific flights

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Westford
Old Orchard Beach
Salem
Chelsea
Seekonk
Sturbridge

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Boston from Sydney.

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

Flights from Sydney to Boston with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Sydney to Boston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

An easier way to manage your Boston trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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1 adult
Sat 15/11
Sat 22/11

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