Find flights
Deals

$128+ Cheap flights from Ontario

ONT — SYD
24 Sep — 1 Oct1
1 adult
1 adult, Economy, 0 bags

Find flights from Ontario within your budget

 

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Thu 17/9

09:52-16:05

1 stop6h 13m

Portland

Sat 21/11

17:50-23:00

1 stop5h 10m

$404

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Fri 16/10

14:50-20:45

1 stop5h 55m

Portland

Mon 19/10

05:30-12:25

1 stop6h 55m

$404

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Tue 15/9

17:15-23:40

1 stop6h 25m

Portland

Sun 22/11

17:50-23:00

1 stop5h 10m

$404

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Fri 23/10

13:35-18:12

1 stop4h 37m

Portland

Sun 25/10

15:31-22:43

1 stop7h 12m

$404

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Sat 19/9

18:00-22:31

1 stop4h 31m

Portland

Tue 24/11

17:50-23:00

1 stop5h 10m

$404

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Tue 15/9

17:15-23:40

1 stop6h 25m

Portland

Mon 23/11

17:50-23:00

1 stop5h 10m

$404

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Sat 19/9

10:15-17:45

2 stops7h 30m

Portland

Tue 22/9

06:35-10:15

1 stop3h 40m

$411
Fastest return journey

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Fri 11/9

06:00-10:40

1 stop4h 40m

Portland

Sat 12/9

17:50-22:40

1 stop4h 50m

$415

OntarioPortland

ONT Ontario - PDX Portland

ONTPDX

Ontario

Sat 12/12

17:11-22:26

1 stop5h 15m

Portland

Thu 31/12

05:30-12:36

1 stop7h 06m

$423

OntarioNew York

ONT Ontario - LGA New York LaGuardia

ONTLGA

Ontario

Tue 8/12

12:20-23:41

1 stop8h 21m

New York LaGuardia

Thu 10/12

15:00-21:56

1 stop9h 56m

$429

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Ontario

Have a flexible travel schedule? Discover the best time to fly from Ontario with our price prediction graph.
Estimated return price

Travel insights for flights from Ontario

Get recent, data-driven insights about flights from Ontario including ideal travel times, pricing trends, and more.

What are popular destinations to fly to from Ontario?

Ontario offers frequent flights to Dallas (141 flights per day), Seattle (125 flights per day) and Atlanta (83 flights per day).

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From $139
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $319
Oakland
Oakland
From $556
Houston Hobby
Houston Hobby
From $481

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Las Vegas Harry Reid Intl, with prices starting at $139. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From $139
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $319
Houston Hobby
Houston Hobby
From $481
Oakland
Oakland
From $556

Browse thousands of different options on Cheapflights for your next trip

Related info for your journey

  • What are the most popular destinations to fly to from Ontario?

    For the current month, the most popular flights from Ontario are Las Vegas, Guadalajara, Denver. Las Vegas, Dallas/Fort Worth Airport, Guadalajara are the most popular locations from Ontario year round.

  • What is the cheapest flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as $139 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for $398 to fly from Ontario.

  • What is the cheapest premium economy flight from Ontario?

    Options for some of the cheapest premium economy flights from Ontario we have found on Cheapflights are as follows:
    Fly from Ontario to Phoenix Sky Harbor Intl Airport starting at $2,202

  • Where are the cheapest places to fly to from Ontario?

    View the cheapest flight destinations from Ontario:
    Fly from Ontario to Sydney from $1,388 round trip
    Fly from Ontario to Brisbane from $1,521 round trip
    Fly from Ontario to Melbourne from $1,543 round trip

  • How does Cheapflights help users find flights from Ontario?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

  • Why should you use Cheapflights to find cheap flight tickets from Ontario?

    It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario.

  • Can Cheapflights find flights from Ontario with no change fees?

    Certainly. Search results for flights from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from Ontario become cheaper?

    Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Ontario today and book when you’re ready!

See more FAQs

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario.

Can Cheapflights find flights from Ontario with no change fees?

Certainly. Search results for flights from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ontario become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Ontario today and book when you’re ready!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.