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HK$2,955+ Cheap flights to Ontario

— ONT
30 Sep — 7 Oct1
1 adult
1 adult, Economy, 0 bags

Flights to Ontario in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Ontario

Mon 19-1011:45 -
2 stops40h 01m
Tue 20-1016:03 -
1 stop21h 57m
Deal found 28-8HK$7,079
Fri 18-911:45 -
1 stop23h 16m
Tue 22-913:18 -
2 stops48h 42m
Deal found 30-8HK$7,118
Fri 16-1011:45 -
1 stop20h 51m
Mon 2-1106:00 -
1 stop21h 20m
Deal found 28-8HK$7,189
Mon 26-1010:35 -
2 stops25h 16m
Tue 10-1105:00 -
2 stops33h 45m
Deal found 27-8HK$7,228
Thu 3-917:35 -
1 stop16h 05m
Tue 15-900:10 -
1 stop18h 05m
Deal found 30-8HK$7,322
Thu 10-914:05 -
1 stop19h 35m
Sat 12-900:45 -
1 stop18h 20m
Deal found 31-8HK$7,377

Find flight deals to Ontario

Return from

HK$4,837

One-way from

HK$2,955

Popular in

July

Cheapest in

October

Average price

HK$7,479
AIR PREMIA
  • AIR PREMIA
  • 4-11-18-11
  • 2 total stops
  • 40h 05m total
  • Hong Kong to Los Angeles
Search Deals
16-11
  • 16-11
  • 2 total stops
  • 21h 48m total
  • Hong Kong to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (HK$860 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$174 potential savings vs. average return price).
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Average for return flights in August 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights to Ontario that are best for you.

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sat 24-10

11:45-15:22

1 stop18h 37m

Ontario

Sat 31-10

05:00-19:20

2 stops23h 20m

HK$7,118

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Fri 18-9

11:45-22:51

1 stop26h 06m

Ontario

Tue 22-9

13:56-18:55

1 stop37h 59m

HK$7,118

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sat 17-10

22:30-15:22

1 stop31h 52m

Ontario

Tue 20-10

11:10-05:00

1 stop26h 50m

HK$7,118

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Tue 9-2

10:35-15:27

1 stop20h 52m

Ontario

Tue 9-3

13:00-06:45

2 stops25h 45m

HK$7,118

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Mon 26-10

22:30-22:48

1 stop15h 18m

Ontario

Tue 10-11

16:17-06:45

1 stop22h 28m

HK$7,189
Fastest return journey

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sat 26-9

14:05-18:00

1 stop18h 55m

Ontario

Fri 2-10

00:10-09:15

1 stop18h 05m

HK$7,440

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Mon 14-9

10:15-18:40

1 stop23h 25m

Ontario

Thu 17-9

00:10-09:15

1 stop18h 05m

HK$7,440

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sun 11-10

11:45-15:22

1 stop18h 37m

Ontario

Sun 18-10

09:25-22:35

2 stops22h 10m

HK$7,996

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Tue 15-9

19:40-13:25

2 stops32h 45m

Ontario

Wed 30-9

14:22-15:10

2 stops33h 48m

HK$11,477
Cheapest one-way
Fastest single journey

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sun 22-11

17:35-17:05

1 stop15h 30m

HK$4,445

Flights are sorted by cheapest return flights first.

Deals found on 30-8

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight to Ontario

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

Cheapflights Insights

Everything you need to know about your flight to Ontario

What are the cheapest airlines that fly to Ontario?

The cheapest airline flying from Hong Kong to Ontario is China Airlines.

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with China Airlines to the United States by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very Good
844 reviews
Check prices

Boarding

8.3

Crew

8.5

Food

7.8

Comfort

8.0

Entertainment

8.0

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

TPE - SFO

China Airlines has horrible customer services. The flight I was taking had many empty seats, but I got rejected many services with the excuses that the flight is fully booked. 1. When I was checking in at the front dest to request the seat together with my husband, I was told that the flight was fully booked. We need to pay almost extra $200 per person to sit together. 2. When I tried to use the VIP lounge with my mileage points, I was rejected. The reason was that the flight was fully booked.
China Airlines
8.3
Very Good
844 reviews
China Airlines
8.3
Very Good
844 reviews
Check prices

Boarding

8.3

Crew

8.5

Food

7.8

Comfort

8.0

Entertainment

8.0

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

TPE - SFO

China Airlines has horrible customer services. The flight I was taking had many empty seats, but I got rejected many services with the excuses that the flight is fully booked. 1. When I was checking in at the front dest to request the seat together with my husband, I was told that the flight was fully booked. We need to pay almost extra $200 per person to sit together. 2. When I tried to use the VIP lounge with my mileage points, I was rejected. The reason was that the flight was fully booked.

FAQs about flying to Ontario

  • What airport do you fly into for flights to Ontario?

    For a flight to Ontario, you will be flying into Ontario. Ontario (ONT) is just 4.9 km from the centre of the city.

  • Can I find cheaper flights to Ontario if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ontario?

    Based on reviews from Cheapflights users, China Airlines is rated the highest out of the airlines that fly to Ontario.

  • What is the cheapest airport to fly to in Ontario?

    Ontario is currently the cheapest airport to fly to in Ontario. One-way flights to Ontario typically cost HK$479, while return flights cost around HK$1,776.

  • How much is a return flight to Ontario?

    A return flight to Ontario will typically cost around HK$1,776, however they can be found for as little as HK$1,776.

  • Does Ontario have rental cars?

    Yes. Those touching down at Ontario can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ontario?

    Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 km away from Ontario).

See more FAQs

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How does Cheapflights help users find flights to Ontario?

Deals for Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Ontario with no change fees?

Certainly. Search results for flights to 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 to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Ontario flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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