To save up to 14% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Allentown to Sydney from $1,226 1-2 weeks out and tickets from $1,360 for flights departing within the next 72 hours.
Flights from Allentown to Sydney are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sydney.
When flying from Allentown to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
September can be a great time to fly to Sydney from Allentown with a flight ticket averaging about $1,235. Cheapflights users have found deals in the month of September for as cheap as $699. The most expensive prices can be found in the month of December.