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Cheap flights from Sydney to Boston from $785

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 23/7. 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

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Cheap return flights

Alaska Airlines Logo
21:40 - 06:00SYD-BOS
22h 20m1 stop
Alaska Airlines Logo
20:19 - 19:45BOS-SYD
33h 26m2 stops
$1,506Alaska Airlines
Find Deal
Thu, 31 Jul - Thu, 14 Aug
Alaska Airlines Logo
21:40 - 06:00SYD-BOS
22h 20m1 stop
Alaska Airlines Logo
20:19 - 19:45BOS-SYD
33h 26m2 stops
$1,508Alaska Airlines
Find Deal
Thu, 31 Jul - Thu, 14 Aug
Air Canada Logo
10:20 - 09:30SYD-BOS
38h 10m2 stops
Air Canada Logo
10:20 - 08:20BOS-SYD
31h 00m2 stops
$1,739Air Canada
Find Deal
Thu, 16 Oct - Thu, 23 Oct
Air Canada Logo
10:20 - 21:25SYD-BOS
26h 05m2 stops
Air Canada Logo
10:20 - 08:20BOS-SYD
31h 00m3 stops
$1,748Air Canada
Find Deal
Thu, 16 Oct - Thu, 23 Oct
Qantas Airways Logo
09:10 - 17:17SYD-BOS
22h 07m1 stop
Qantas Airways Logo
08:01 - 07:05BOS-SYD
33h 04m1 stop
$1,794Qantas Airways
Find Deal
Mon, 11 Aug - Sat, 30 Aug
Cathay Pacific Logo
22:20 - 22:00SYD-BOS
39h 40m1 stop
Cathay Pacific Logo
00:30 - 20:50BOS-SYD
28h 20m1 stop
$1,819Cathay Pacific
Find Deal
Thu, 20 Nov - Sat, 22 Nov
Qantas Airways Logo
11:15 - 16:41SYD-BOS
21h 26m1 stop
Qantas Airways Logo
12:15 - 09:00BOS-SYD
28h 45m1 stop
$1,828Qantas Airways
Find Deal
Tue, 18 Nov - Tue, 25 Nov
Cathay Pacific Logo
07:40 - 23:00SYD-BOS
29h 20m1 stop
Cathay Pacific Logo
01:40 - 08:40BOS-SYD
41h 00m1 stop
$1,834Cathay Pacific
Find Deal
Tue, 15 Jul - Mon, 21 Jul
United Airlines Logo
09:30 - 18:56SYD-BOS
23h 26m2 stops
United Airlines Logo
11:00 - 07:00BOS-SYD
30h 00m2 stops
$1,836United Airlines
Find Deal
Sat, 2 Aug - Tue, 19 Aug
United Airlines Logo
10:20 - 19:38SYD-BOS
23h 18m1 stop
United Airlines Logo
18:11 - 06:55BOS-SYD
22h 44m1 stop
$1,965United Airlines
Find Deal
Mon, 30 Jun - Mon, 11 Aug

Cathay Pacific flights from Sydney to Boston

Our best Cathay Pacific deals on Sydney to Boston flight tickets
Cathay Pacific
20 Nov
SYD22:20Sydney Kingsford Smith
39h 40m
1 stop
BOS22:00Boston Logan Intl
22 Nov
BOS00:30Boston Logan Intl
28h 20m
1 stop
SYD20:50Sydney Kingsford Smith
Cathay Pacific
15 July
SYD07:40Sydney Kingsford Smith
29h 20m
1 stop
BOS23:00Boston Logan Intl
21 July
BOS01:40Boston Logan Intl
41h 00m
1 stop
SYD08:40Sydney Kingsford Smith
Cathay Pacific
18 Nov
SYD11:05Sydney Kingsford Smith
26h 55m
1 stop
BOS22:00Boston Logan Intl
24 Nov
BOS00:30Boston Logan Intl
28h 20m
1 stop
SYD20:50Sydney Kingsford Smith

Alaska Airlines flights from Sydney to Boston

Our best Alaska Airlines deals on Sydney to Boston flight tickets
Alaska Airlines
31 July
SYD21:40Sydney Kingsford Smith
22h 20m
1 stop
BOS06:00Boston Logan Intl
14 Aug
BOS20:19Boston Logan Intl
33h 26m
2 stops
SYD19:45Sydney Kingsford Smith
Alaska Airlines
31 July
SYD21:40Sydney Kingsford Smith
22h 20m
1 stop
BOS06:00Boston Logan Intl
14 Aug
BOS20:19Boston Logan Intl
33h 26m
2 stops
SYD19:45Sydney Kingsford Smith
Alaska Airlines
3 Aug
SYD21:40Sydney Kingsford Smith
47h 50m
2 stops
BOS07:30Boston Logan Intl
14 Aug
BOS20:19Boston Logan Intl
33h 26m
2 stops
SYD19:45Sydney Kingsford Smith

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, February 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 $1,854. The month of March is another great option to travel to Boston, with average flight prices from Sydney averaging around $1,854.

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 $2,049. 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 $2,607. 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 $2,009. 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 $2,207 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 15 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $2,137 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Sydney for as low as $1,827 on momondo.

How have Sydney to Boston flight prices changed over time?

As of June 2025, prices for Sydney to Boston flights are approximately 15% 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

Best price found

$785

Fastest flight time

20h 45m

Direct flights

None

Airports in Boston

1 airport
The best one-way flight to Boston from Sydney in the past 72 hours is $785. The best return flight deal from Sydney to Boston found on momondo in the last 72 hours is $1,506.
The fastest flight from Sydney to Boston takes 20h 45m
There are no direct flights from Sydney to Boston. Popular non-direct route for this connection is Sydney Kingsford Smith Airport - Boston Logan Intl Airport.
There is 1 airport near Boston: Boston Logan Intl (BOS)

  • 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 20h 51m.

  • 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 $992Free cancellationRating
7.8
2,496 reviews
Search Hawaiian Airlines flights
Virgin AustraliaPriceFrom $1,345Free cancellationRating
7.5
407 reviews
Search Virgin Australia flights
United AirlinesPriceFrom $1,385Free cancellationRating
7.4
8,791 reviews
Search United Airlines flights
Air New ZealandPriceFrom $1,524Free cancellationRating
8.0
483 reviews
Search Air New Zealand flights
Air CanadaPriceFrom $1,584Free cancellationRating
7.1
9,542 reviews
Search Air Canada flights
American AirlinesPriceFrom $1,643Free cancellationRating
7.2
10,000 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $1,708Free cancellationRating
7.5
854 reviews
Search Qantas Airways flights
Japan AirlinesPriceFrom $1,816Free cancellationRating
8.3
1,490 reviews
Search Japan Airlines flights
Cathay PacificPriceFrom $2,009Free cancellationRating
7.5
892 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
Salem
Waltham
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.


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