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Flights from Philadelphia to Sydney

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
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      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        YQY 15:00
        6h
        Nonstop
        PHL 16:00
        Sydney - Philadelphia | Fri, Jul 17 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search
      • PHL 13:00
        17h 25m
        1 stop
        YQY 14:00
        Philadelphia - Sydney | Wed, Jul 15 | Normal Airline
        Search
        Search

Philadelphia to Sydney Flight Details

The distance between Philadelphia and Sydney is about 1,414.78 km. Based on Trip.com's latest data, travel demand is highest in September. The off-season for travel is October.

Cheapest monthOctober
Peak season for travelSeptember
Flight distance1,414.78 km
Flight statistics for the Philadelphia–Sydney route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • When is the best time to book flights from Philadelphia to Sydney?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Philadelphia to Sydney is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Philadelphia to Sydney, you can use various tools on Trip.com:
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Sydney travel is around September.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Philadelphia to Sydney is October, when demand for travel is lower.
  • The time difference between Sydney and Philadelphia is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.