Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
High demand for flights, 21% potential price rise
Best time to find cheap flights, 6% potential price drop
Average for round-trip flights in June 2021
From Sydney Kingsford Smith to Portland
Cheapest prices for Portland flights by month
The cheapest ticket to Portland found for each month in 2021 based on historical flight searches by Cheapflights users.
Currently, the cheapest month for flights to Portland is February. The most expensive month for flights is December. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.
When is the best time to fly to Portland?
Average Boston Logan Intl flight ticket prices and weather conditions for 2021 and 2022 by month.
SYD - BOS
$1,233 - $2,306
4 - 29 °C
70 - 99 mm
Whilst there are several times of the year to choose from, February is seen as the time to fly to Portland, however, it is possible to get good deals throughout the year. If you are looking for warm weather when you arrive off of your flight to Portland then July is statistically the hottest. March is historically the period with most rainfall.
When is the best time to book a flight to Portland?
The best time to book flights to Portland is 1 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Which day is cheapest to fly to Portland?
The cheapest flights to Portland are usually found when departing on a Thursday. The departure day with the highest cost at present is Sunday.
What time of day is cheapest to fly to Portland?
Flights in the morning are typically the cheapest time of the day to fly to Portland. Flights in the afternoon are usually the most expensive.
Alternative, similarly priced destinations
See alternative destinations where airfare is generally forecast to be close to Portland flight prices.