Cheap flights from Sydney to Portland from $673

The cheapest month to fly to Portland from Sydney is in July. Flight prices, which tend to average around $1,387, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland during the month of July, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,400.

You are more likely to see cheaper flights to Portland from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $1,597 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Sydney for as low as $1,402 on momondo.

You could potentially save up to 6% on your flight if you consider stops on a Sydney to Portland flight.

As of November 2026, prices for Sydney to Portland flights are approximately 1% more expensive when compared to flights at the same time last year.

United Airlines, Air Canada, and Qantas Airways are the most popular carriers operating from Sydney Kingsford Smith to Portland

Air Canada, United Airlines and Qantas Airways are the top three most popular airlines that fly to Portland from Sydney according to our data. Air Canada is the first choice among our users, with 37% of people opting to fly with this airline when travelling to Portland. Keep in mind that there are 4 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

Los Angeles (LAX) was the most common stop: 48% of momondo users choosing one-stop flights on this route connected there.

Flights via Honolulu (HNL) offer the lowest average return price of $1,459.

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 18h 40m.

Honolulu (HNL) has the shortest average stopover time for this route: 2h 43m.