Cheap flights from Boston Logan International to Sydney

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Compare Boston Logan International to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

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Flight deals from Boston Logan International to Sydney

Looking for a cheap last-minute deal or the best return flight from Boston Logan International to Sydney? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Boston Logan International to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to Sydney flights are currently cheapest in October.

Boston Logan International to Sydney: Alternative routes

Compare routes from Boston Logan International to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Boston to Sydney: Flight information

The things to know before you go.
Cheapest flight foundP46,915
Cheapest month to flyOctober

Finding cheap flights from Boston Logan International to Sydney: Frequently asked questions

The best price we found for a return flight from Boston Logan International to Sydney is P46,915. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Boston Logan International to Sydney. But we found flights with one or more stops from P46,915.
As of February 2025, there are no flights flying from Boston Logan International to Sydney.
The cheapest month to fly from Boston Logan International to Sydney is usually February 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to Sydney Airport on Tuesday, 14 October 2025.
No airlines currently offer direct flights between Boston Logan International Airport and Sydney Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Sydney.

Travelling from Logan International Airport (BOS) to Sydney (Kingsford Smith) Airport (SYD): what you need to know

  • Flying during a peak month such as August? Major public holidays and other popular periods can mean longer queues and delays at security. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.

  • To break up your flight from Logan International Airport to Sydney (Kingsford Smith) Airport, add a stopover to your trip. Simply uncheck 'Direct flights only' and find a destination that interests you. Popular stopovers on the BOS - SYD route are:

    • Los Angeles International Airport

    • San Francisco International Airport

    • Dallas/Fort Worth International Airport

  • To find out whether you need a visa to enter Australia, contact your carrier and the local consulate or embassy. They'll have the latest information, including additional travel documents you may need after booking your cheap ticket from BOS to SYD.

How to find the cheapest flights from Logan International Airport (BOS) to Sydney (Kingsford Smith) Airport (SYD)

  • The best price we've seen for a one-way ticket from Logan International Airport to Sydney (Kingsford Smith) Airport is P25,497. The cheapest price for a return flight is P46,915. Remember that fares may change due to availability at the time of booking.

  • It's often best to book in advance if you want to find cheap tickets from BOS to SYD. That's because airlines adjust prices based on demand, which tends to rise closer to the date of departure.

  • If you're willing to be flexible with your travel dates, use the 'Whole month' search function. It'll give you the cheapest price across every month when looking for a ticket from Logan International Airport to Sydney (Kingsford Smith) Airport.

  • Create a Price Alert for cheap tickets from BOS to SYD. You don't need to search every day to find out if airfares have dropped. We'll let you know when there's a change in price.

  • Use filters to tailor your flights from Logan International Airport to Sydney (Kingsford Smith) Airport. Enter your preferred arrival and departure times, number of stops and airlines. Or sort your results by 'Cheapest' to find the best deals.

Handy information about Logan International Airport (BOS)

  • Located around 5 kilometres from central Boston, Logan International Airport can be reached in approximately 12 minutes by car (depending on traffic). The ride by public transport takes roughly 23 minutes.

  • Booked an early flight from Logan International Airport to Sydney (Kingsford Smith) Airport? Avoid the stress of rushing to the airport (and get some extra shut-eye) by choosing one of these stays close to BOS:

Arriving at Sydney (Kingsford Smith) Airport (SYD)

  • If you have a late flight from Logan International Airport to Sydney (Kingsford Smith) Airport, nothing tops the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and resting not long after at one of these hotels near SYD:

Getting from Sydney (Kingsford Smith) Airport (SYD) to central Sydney

  • From Sydney (Kingsford Smith) Airport, Sydney is approximately 18 kilometres away. It takes around 21 minutes to reach the centre driving.

  • If you're travelling on public transport, expect a journey of roughly 27 minutes.

When to fly to Sydney (Kingsford Smith) Airport (SYD)

  • The quietest month for a flight from Logan International Airport to Sydney (Kingsford Smith) Airport is April, while July is the busiest. Choose the best time to visit Sydney based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When booking your flight from Logan International Airport to Sydney (Kingsford Smith) Airport, think about the type of weather you like. January is the warmest month in Sydney, with temperatures ranging from 17 ºC to 32 ºC.

  • For cooler conditions, look for a cheap ticket from BOS to SYD in July. Average temperatures are between 5 ºC and 19 ºC then.

More about Sydney

Complete your Sydney trip with hotels and a car rental

  • You've booked your cheap ticket to Sydney (Kingsford Smith) Airport — next on the list is finding a place to stay, and maybe even a set of wheels. We've compared prices across hundreds of companies to bring you the top hotels and car rental deals in Sydney.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.