Home / Travel Deals / Sydney

Sydney: cheap flights and the best time to go

The harbor, beaches and wildlife parks. Australia, Australia · Cities, Beaches

We earn a commission when you book through these links, at no extra cost to you. Prices were found by other travelers' searches in the last few days and may have changed; the booking site has the final price.

Cheapest round trip

Travelers

Fares are per seat. Everyone 2 and older needs a seat; babies under 2 on a lap fly free. Up to 9 travelers.

Loading fares…

Safety level

Level 1 Level 1: Exercise normal precautions

The State Department's advisory for Australia (updated 2026-08-17)

Levels: 1 Exercise normal precautions · 2 Exercise increased caution · 3 Reconsider travel · 4 Do not travel. Read the advisory before you book; it can change. Checked 2026-10-07.

Best time to go

For the weather: January, December, November (beach weather: highs of 78–90°F, not too much rain). With fares from your airport, the best months weigh weather 60% and price 40%.

Typical weather and the cheapest round trip by month
MonthHighLowRainCheapest round trip from JFK
January (a best month)81°F68°F3.6 in…
February80°F68°F5.1 in…
March78°F65°F4.6 in…
April74°F60°F4.5 in…
May70°F54°F4.0 in…
June65°F50°F5.6 in…
July64°F48°F3.2 in…
August67°F49°F3.0 in…
September71°F54°F2.5 in…
October74°F58°F2.7 in…
November (a best month)76°F62°F3.6 in…
December (a best month)78°F65°F2.9 in…

Typical daily high and low and total rain, 1991–2020: NOAA NCEI GHCN-Daily, station SYDNEY (OBSERVATORY HILL) (1 km away). ★ = the best three months. Fares are the cheapest found for trips leaving that month in the next year.

Prices are per seat for a round trip in economy; with more than one traveler they're the total for your party (babies under 2 on a lap need no seat). The booking site shows the final price for everyone.