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 May 2021
From Sydney to Portsmouth
Cheapest prices for Portsmouth flights by month
The cheapest ticket to Portsmouth found for each month in 2021 based on historical flight searches by Cheapflights users.
February is currently the cheapest month to fly to Portsmouth. At this moment in time December is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.
When is the best time to fly to Portsmouth?
Average Boston Logan Intl flight ticket prices and weather conditions for 2021 and 2022 by month.
SYD - BOS
$1,199 - $2,242
4 - 29 °C
70 - 99 mm
Flying to Portsmouth in February is usually considered the best time to fly. However, you will find other deals are always available year round. If weather is an important factor for you when considering when to fly to Portsmouth, the warmest period tends to be July, with the wettest being March.
When is the best time to book a flight to Portsmouth?
The best time to book flights to Portsmouth 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 Portsmouth?
The cheapest flights to Portsmouth 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 Portsmouth?
Flights in the morning are typically the cheapest time of the day to fly to Portsmouth. 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 Portsmouth flight prices.