Cheap flights from Ontario, CA to Sydney, Australia
Flights starting at $647. Choose between Frontier Airlines, Cathay Pacific, or Alaska Airlines to find the best price.
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Sydney
Cheapest one-way trip | $699 |
---|---|
Cheapest round-trip | $1,188 |
Average round-trip | $1,253 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The most popular airlines for this route are Frontier Airlines, Cathay Pacific, Alaska Airlines, China Airlines, and Qantas. Ontario and Sydney have 231 direct flights per week. When you arrive at Sydney, consider visiting Sydney Opera House, and Blue Mountains.
Check-in for a flight from Ontario to Sydney
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Cathay Pacific | CPA | CX | Yes | 0 0 |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
China Airlines | CAL | CI | Yes | Opens 48 days before flight Closes 1 hours before flight |
Qantas | QFA | QF | Yes | 0 0 |
Weather in Sydney
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 26°C | 20°C |
February | 25°C | 20°C |
March | 24°C | 19°C |
April | 22°C | 16°C |
May | 19°C | 13°C |
June | 17°C | 11°C |
July | 16°C | 10°C |
August | 17°C | 10°C |
September | 20°C | 12°C |
October | 21°C | 14°C |
November | 23°C | 16°C |
December | 24°C | 18°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Ontario
- Flights from Ontario to Denver
- Flights from Ontario to Orlando
- Flights from Ontario to Austin
- Flights from Ontario to Las Vegas
- Flights from Ontario to Atlanta
- Flights from Ontario to Sacramento
- Flights from Ontario to San Francisco
- Flights from Ontario to Seattle
- Flights from Ontario to San Antonio
- Flights from Ontario to Guadalajara
- Flights from Ontario to Charlotte
- Flights from Ontario to New Orleans
- Flights from Ontario to Fort Lauderdale
- Flights from Ontario to Philadelphia
- Flights from Ontario to Washington, D.C.
- Flights from Ontario to Oakland
- Flights from Ontario to San Jose
- Flights from Ontario to Detroit
- Flights from Ontario to Minneapolis
- Flights from Ontario to Chicago
Flights to Sydney
- Flights from Melbourne to Sydney
- Flights from Auckland to Sydney
- Flights from Los Angeles to Sydney
- Flights from Denpasar to Sydney
- Flights from Cairns to Sydney
- Flights from Manila to Sydney
- Flights from Honolulu to Sydney
- Flights from Brisbane to Sydney
- Flights from Singapore to Sydney
- Flights from Bangkok to Sydney
- Flights from Queenstown to Sydney
- Flights from San Francisco to Sydney
- Flights from Gold Coast to Sydney
- Flights from Tokyo to Sydney
- Flights from Seoul to Sydney
- Flights from Ho Chi Minh City to Sydney
- Flights from Adelaide to Sydney
- Flights from Phnom Penh to Sydney
- Flights from Seattle to Sydney
- Flights from Kuala Lumpur to Sydney
Popular routes
- Flights from London to New York
- Flights from Reno to Bangkok
- Flights from Kansas City to Guayaquil
- Flights from Pittsburgh to Beirut
- Flights from New York to Tel Aviv
- Flights from New Orleans to Tehran
- Flights from Santa Ana to Casablanca
- Flights from Portland to Abuja
- Flights from Saint Thomas to Nairobi
- Flights from St. Louis to Key West
- Flights from Key West to St. Louis
- Flights from Fresno to Sofia
- Flights from Los Angeles to Las Vegas