Cheap Flights from Sydney (SYD) to Onslow (ONS)

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Flight deals from Sydney Airport to Onslow Airport

Looking for a cheap last-minute deal or the best return flight from Sydney Airport to Onslow Airport? If you want to travel next month, return fares start from £1,908. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sydney to Onslow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sydney to Onslow flights are currently cheapest in April.

Sydney to Onslow: Alternative routes

Compare routes from Sydney to Onslow below. You may find an airport to fly into that's cheaper, faster, or easier than Onslow.

Sydney to Onslow: Flight information

The things to know before you go.
Cheapest flight found£687
Cheapest month to flyApril

Finding cheap flights from Sydney to Onslow: Frequently asked questions

The best price we found for a return flight from Sydney to Onslow is £1,910. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sydney to Onslow. But we found flights with one or more stops from £1,910.
As of March 2026, there are no flights flying from Sydney to Onslow.
The cheapest month to fly from Sydney to Onslow is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sydney Airport to Onslow Airport on Friday, 3 April 2026.
No airlines currently offer direct flights between Sydney Airport and Onslow Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Onslow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Onslow is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Virgin Australia offers the cheapest flight tickets to Onslow.

Flying from Sydney (Kingsford Smith) Airport (SYD) to Onslow Airport (ONS): what you need to know

  • Give yourself plenty of time to catch your SYD to ONS flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months like April, it's best to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during a peak period in general.

  • If you'd like to tour a different city along the way, consider a flight with a stopover. To see your options for tickets from Sydney (Kingsford Smith) Airport to Onslow Airport, deselect 'Direct flights only.' Perth Airport is a popular stop between SYD and ONS.

How to find the cheapest flights from Sydney (Kingsford Smith) Airport (SYD) to Onslow Airport (ONS)

  • £687 is currently the lowest price for a one-way Sydney (Kingsford Smith) Airport to Onslow Airport flight. A return flight starts at £1,910. These fares may change depending on demand and availability.

  • Don't leave everything to the last moment. You're more likely to get cheap tickets from SYD to ONS if you book ahead. Airlines often offer some terrific early bird deals.

  • The 'Whole month' tool shows you the cheapest flights from Sydney (Kingsford Smith) Airport to Onslow Airport across every month. It's an easy way to snap up a bargain if your trip dates are flexible.

  • Getting your hands on cheap flights from SYD to ONS is a cinch with Price Alerts. Simply set up one of these automatic alerts and we'll notify you as soon as fares go down.

  • Tailor your trip with filters. Select your departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Best' or 'Cheapest' flights from Sydney (Kingsford Smith) Airport to Onslow Airport.

Handy information about Sydney (Kingsford Smith) Airport (SYD)

  • When it comes to the on-time performance of Sydney (Kingsford Smith) Airport, data shows 69.62% of flights arrive within the expected timeframe.

  • To get to Sydney (Kingsford Smith) Airport from central Sydney, it'll take around 20 minutes if you're planning to drive. This depends on traffic, however. It's approximately 11 miles from the airport to the city centre.

  • The trip when using public transport takes roughly 25 minutes.

  • Get your travels off to a relaxed start by staying near SYD. Whether you're boarding an early flight from Sydney (Kingsford Smith) Airport to Onslow Airport or just don't want to be rushed, these hotels are perfect:

Arriving at Onslow Airport (ONS)

Getting from Onslow Airport (ONS) to central Onslow

  • Onslow Airport is approximately 1 mile from central Onslow. The drive time takes about 0 hours.

When to fly to Onslow Airport (ONS)

  • June is the busiest month for flights from Sydney (Kingsford Smith) Airport to Onslow Airport. To skip the crowds, head to Onslow in April.

  • The warmest month in Onslow is February, with the temperature ranging between 26ºC (79ºF) and 36ºC (97ºF). Book your flights from Sydney (Kingsford Smith) Airport to Onslow Airport in this month if you like this kind of weather.

  • Search for cheap tickets from SYD to ONS in July if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 15ºC (59ºF) and 26ºC (79ºF) on average.

Explore more of Australia

  • Onslow has loads to offer, but there are so many other corners of Australia you should also see. Around 130 miles north-east of Onslow, a trip to Karratha will keep you on the go. Check out popular attractions like Yaburara Heritage Trail, Red Earth Arts Precinct and The Youth Shed.

  • Around 240 miles south of Onslow, Carnarvon is another essential stop in Australia. No visit is complete without checking out One Mile Jetty, Carnarvon Space and Technology Museum and Coral Coast Tourist Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.