Cheap Flights from Melbourne to Ontario International

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Compare Melbourne to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

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Flight deals from Melbourne to Ontario International

Looking for a cheap last-minute deal or the best return flight from Melbourne to Ontario International Airport? If you want to travel next month, return fares start from $1,620. Find the lowest prices on one-way and return tickets right here.

Ontario.$1,620 per passenger.Departing Thu, 1 Oct, returning Wed, 21 Oct.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Thu, 1 Oct, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Wed, 21 Oct, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $1,620, select.

Ontario.$1,623 per passenger.Departing Thu, 24 Sep, returning Sun, 18 Oct.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Thu, 24 Sep, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Sun, 18 Oct, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $1,623, select.

Ontario.$1,625 per passenger.Departing Mon, 15 Feb, returning Tue, 23 Feb.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Mon, 15 Feb, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Tue, 23 Feb, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $1,625, select.

Ontario.$1,705 per passenger.Departing Thu, 24 Dec, returning Fri, 1 Jan.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Thu, 24 Dec, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Fri, 1 Jan, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $1,705, select.

Ontario.$1,710 per passenger.Departing Mon, 18 Jan, returning Fri, 29 Jan.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Mon, 18 Jan, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Fri, 29 Jan, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $1,710, select.

Ontario.$1,797 per passenger.Departing Sat, 31 Oct, returning Sat, 7 Nov.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Sat, 31 Oct, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Sat, 7 Nov, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $1,797, select.

Ontario.$1,798 per passenger.Departing Sun, 1 Nov, returning Fri, 6 Nov.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Sun, 1 Nov, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Fri, 6 Nov, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $1,798, select.

Ontario.$1,953 per passenger.Departing Tue, 1 Dec, returning Sun, 13 Dec.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Tue, 1 Dec, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Sun, 13 Dec, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $1,953, select.

Ontario.$2,396 per passenger.Departing Thu, 1 Oct, returning Fri, 8 Jan.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Thu, 1 Oct, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Fri, 8 Jan, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $2,396, select.

Ontario.$2,549 per passenger.Departing Tue, 19 Jan, returning Wed, 17 Feb.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Melbourne Tullamarine on Tue, 19 Jan, arriving in Ontario International.Inbound indirect flight with Qatar Airways, departs from Ontario International on Wed, 17 Feb, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $2,549, select.

Ontario.$2,561 per passenger.Departing Tue, 16 Mar, returning Wed, 31 Mar.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Melbourne Tullamarine on Tue, 16 Mar, arriving in Ontario International.Inbound indirect flight with Qatar Airways, departs from Ontario International on Wed, 31 Mar, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $2,561, select.

Ontario.$2,562 per passenger.Departing Tue, 2 Feb, returning Mon, 8 Mar.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Melbourne Tullamarine on Tue, 2 Feb, arriving in Ontario International.Inbound indirect flight with Qatar Airways, departs from Ontario International on Mon, 8 Mar, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $2,562, select.

Ontario.$2,621 per passenger.Departing Wed, 25 Nov, returning Sun, 3 Jan.Return flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Wed, 25 Nov, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Sun, 3 Jan, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $2,621, select.

Ontario.$2,660 per passenger.Departing Tue, 3 Nov, returning Wed, 3 Feb.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Melbourne Tullamarine on Tue, 3 Nov, arriving in Ontario International.Inbound indirect flight with Qatar Airways, departs from Ontario International on Wed, 3 Feb, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $2,660, select.

Ontario.$2,669 per passenger.Departing Thu, 24 Sep, returning Tue, 16 Mar.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Melbourne Tullamarine on Thu, 24 Sep, arriving in Ontario International.Inbound indirect flight with Qatar Airways, departs from Ontario International on Tue, 16 Mar, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $2,669, select.

Ontario.$2,781 per passenger.Departing Wed, 26 May, returning Wed, 9 Jun.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Melbourne Tullamarine on Wed, 26 May, arriving in Ontario International.Inbound indirect flight with China Airlines, departs from Ontario International on Wed, 9 Jun, arriving in Melbourne Tullamarine.Price includes taxes and charges.From $2,781, select.

Find the cheapest month to fly from Melbourne to Ontario International

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

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Melbourne to Ontario International: Alternative routes

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

Melbourne to Ontario: Flight information

The things to know before you go.

Cheapest flight found	$1,620
Cheapest month to fly	October

Finding cheap flights from Melbourne to Ontario International: Frequently asked questions

How much are return flights from Melbourne to Ontario International?

The best price we found for a return flight from Melbourne to Ontario International is $1,620. 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.

Which airlines fly direct from Melbourne to Ontario International?

Currently, there are no airlines that fly direct from Melbourne to Ontario International. But we found flights with one stop from $1,620.

How many flights are there a week from Melbourne to Ontario International?

As of September 2026, there are no flights flying from Melbourne to Ontario International.

When is the cheapest time to fly from Melbourne to Ontario International?

The cheapest month to fly from Melbourne to Ontario International is usually October.

Which upcoming date is cheapest to fly from Melbourne to Ontario International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Melbourne to Ontario International Airport on Thursday, 1 October 2026.

Can I get a direct flight from Melbourne to Ontario International Airport?

No airlines currently offer direct flights between Melbourne and Ontario International Airport. Most routes have one or more stops.

How can I find the best flight deal to Ontario International?

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 Ontario International 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.

When is the best time to book flights to Ontario?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Melbourne to Ontario International with?

The cheapest airline that flies to Ontario International is United .

Travelling from Melbourne to Ontario International Airport (ONT): What you need to know

Ontario is 19 hours behind Melbourne. Ontario International Airport is located in Ontario, which follows the UTC-8 timezone.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Make sure you're at the airport on time to catch your flight from Melbourne to ONT.
Flying during a popular month like December? Public holidays and other popular seasons can lead to longer queues and delays at check-in and security. Be extra cautious and arrive up to four hours before an international flight and two hours before a domestic departure.

Airports in Melbourne

Melbourne Tullamarine Airport (MEL)

We make it a piece of cake to find cheap flights from Melbourne to ONT with a stopover. To explore all the options departing from Melbourne Tullamarine Airport (MEL), uncheck 'Direct flights only.' Next, pick a flight with a stop long enough to tour the city of your choice. Top stopovers between MEL and ONT include:
- Dallas Fort Worth International Airport (DFW)
- San Francisco International Airport (SFO)
- Honolulu International Airport (HNL)
Travelling from central Melbourne to MEL takes around 35 minutes by public transport. If you ride-share, drive or get a taxi, you'll cover the 24 kilometres in 25 minutes or so, depending on traffic.
Have an early flight from Melbourne to Ontario International Airport? Avoid the last-minute rush to the terminal (and enjoy a little extra shut-eye) by picking one of these hotels close to Melbourne Tullamarine Airport:
Of all flights leaving Melbourne Tullamarine Airport, 68% land on schedule at their destination.

Avalon Airport (AVV)

AVV is about 56 kilometres from central Melbourne. It'll take 1 hour 5 minutes or so to get to the airport if you're driving from the city centre. Public transport takes approximately 1 hour 20 minutes.
It's your holiday, so why not book another night away at a hotel near Avalon Airport? Before your Melbourne to ONT flight, make yourself comfortable at Corio Bay Motel.
The majority of flights that depart Avalon Airport make it to their destination as expected. It boasts an on-time performance rate of 80%.

About Ontario International Airport (ONT)

Reserve a hotel near ONT if you have a late flight from Melbourne to Ontario International Airport. Check in to one of these options and be in bed sooner:
Hit the road running by picking up a Ontario International Airport rental car. Grab your wheels from Dollar, Fox - Rent A Car or Thrifty to explore Ontario and beyond.
Booking your ride around three weeks in advance of your Melbourne to Ontario International Airport flight can help you score a better rate.
ONT is located at 2900 E. Airport Drive.

Getting from Ontario International Airport (ONT) to central Ontario

Ontario International Airport is around 10 kilometres from the centre of Ontario. It takes around 15 minutes or so to drive to the city.
Travelling by public transport takes about 45 minutes.

How to find the cheapest flights from Melbourne to Ontario International Airport (ONT)

Currently, $943 is the best price we've found for a one-way ticket from Melbourne to Ontario International Airport. The cheapest price for a return flight is $1,620. Keep in mind fares may change due to demand at the time of booking.
Booking in advance is often the key to scoring a cheap flight from Melbourne to ONT. Airlines adjust prices based on demand, so the closer your departure date, the more you'll likely spend.
Cheap Melbourne to Ontario International Airport tickets are easier to find if you're not locked into specific dates. Try using the 'Whole month' tool to compare fares throughout the month and then pick the cheapest day.
Locking in a cheap plane ticket from Melbourne to ONT is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as the price has dropped.
Hunt for savings on a flight from Melbourne to Ontario International Airport with the help of the filters. Choose your preferred departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best.'

The best time to fly from Melbourne to Ontario International Airport (ONT)

Think about the kind of holiday you want when deciding the best time to fly. September is the quietest month to visit Ontario. October is when most people book flights from Melbourne to Ontario International Airport (ONT), which may be perfect if you'd rather travel when it's busy.
When booking your Melbourne to ONT plane ticket, consider the kind of weather forecast you're hoping for. August is the warmest month in Ontario, with temperatures ranging from 15ºC to 35ºC.
Search for cheap tickets from Melbourne to Ontario International Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC and 23ºC.

More about Ontario

Start your Ontario trip off on the right foot by choosing the ideal place to stay. Once you've booked your flight from Melbourne to Ontario International Airport, check out our range of hotels including:
Your trip to Ontario isn't complete without checking out the sights. Leading attractions you won't want to miss include Conservation Park, Skate Board Park and Citizens Business Bank Arena.

Explore more of the United States

Ontario is easy to fall in love with, but there are so many other parts of the United States you'll want to see. About 153 kilometres south of Ontario, a visit to San Diego will keep you on the go. Check out popular attractions like San Diego Zoo, San Diego Balboa Park and USS Midway Museum.
If you're interested in discovering another side of the United States, head for Bakersfield, about 193 kilometres northwest of Ontario. Kern County Museum, Dr. Martin Luther King, Jr. Park and Rabobank Arena, Theatre & Convention Centre are the start of reasons to visit.