Cheap flights from Portland to Sydney

One-way fares from $583 · PDX → SYD · prices found by travellers in the last 48 hours

Compare all dates Sydney → Portland
Cheapest fare
$583

Alaska Airlines · Sat, May 1

Cheapest month
May

from $583

Direct flights
Not recently

Usually 1+ stop

Quickest trip
17h 31m

12,340 km

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Cheapest month to fly from Portland to Sydney

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. May 2027 Cheapest $583

Cheapest dates in May 2027

The lowest fares we've seen for each day, cheapest first.

Alaska Airlines
Depart17:40 Sat, May 1PDX → SYD 17h 31m · 1 stop
$583one way, per person
View deal
See every date in May 2027 →

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About flights from Portland to Sydney

Portland (PDX) and Sydney (SYD) are about 12,340 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 17h 31m. Over the next few months, one-way fares start from $583, and May 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Portland to Sydney?

The cheapest one-way fare we've seen recently is $583 with Alaska Airlines, departing Saturday, May 1, 2027.

What is the cheapest month to fly from Portland to Sydney?

May 2027 currently has the lowest fares, from $583 one way.

Are there direct flights from Portland to Sydney?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Portland to Sydney?

The quickest journey we've seen takes about 17h 31m. Portland and Sydney are around 12,340 km apart.

Which airlines fly from Portland to Sydney?

Recent fares on this route were with Alaska Airlines.

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