NZ$1,075 Cheap Flights Boston to Sydney (BOS-SYD)

Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from Logan Intl. Airport (BOS) to SYD was NZ$2,038. Cheap fares don't hang around forever, so book yours today. Prices and availability are subject to change. Additional terms apply.

This differs between air carriers, as each has its own terms and conditions. Visit the Customer Service Portal, where there are simple instructions on how to cancel your flight online.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Logan Intl. Airport (BOS) to Mascot Airport flights, you'll see a "no change fees" filter for you to select.

You'll have 16 300 kilometres to cover on the long-haul Boston to Sydney route. Wear layers of comfortable clothes and consider taking a sleep mask and earplugs.

If you want to travel straight from Logan Intl. Airport to SYD, you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly between these airports.

Fares from Logan Intl. Airport to Sydney Airport are available up to 12 months before departure on Expedia. And although you may score great last-minute deal, it's never something you can count on. Also, booking your flights ahead of time means you'll have more choices — and you can avoid landing the dreaded middle seat! We frequently update our fares to bring you the biggest bargains, so keep checking in for all the latest specials.