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HK$3,485+ Cheap flights to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19-4. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
22 maalis — 29 maalis1
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
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 20 helmikuu 2026.

ke 18-320:05
HKG
-
ONT
1 stop36h 45m
China Airlines
ti 14-400:10
ONT
-
HKG
1 stop21h 50m
China Airlines
Deal found 20-2HK$5,517
ma 9-322:30
HKG
-
ONT
1 stop15h 27m
United Airlines
ma 23-306:15
ONT
-
HKG
1 stop22h 05m
United Airlines
Deal found 19-2HK$5,525
to 29-1022:30
HKG
-
ONT
1 stop15h 36m
United Airlines
la 31-1013:00
ONT
-
HKG
2 stops50h 45m
United Airlines
Deal found 19-2HK$5,533
ma 9-311:25
HKG
-
ONT
1 stop21h 25m
China Airlines
ma 23-323:50
ONT
-
HKG
1 stop18h 25m
China Airlines
Deal found 18-2HK$5,603
ti 24-311:25
HKG
-
ONT
1 stop21h 25m
China Airlines
la 12-900:45
ONT
-
HKG
1 stop17h 30m
China Airlines
Deal found 17-2HK$5,759
la 30-514:05
HKG
-
ONT
1 stop18h 55m
China Airlines
to 18-600:10
ONT
-
HKG
1 stop18h 55m
China Airlines
Deal found 18-2HK$5,869
ke 18-311:15
HKG
-
ONT
1 stop20h 35m
星宇航空
la 2-523:10
ONT
-
HKG
1 stop28h 45m
星宇航空
Deal found 20-2HK$5,900
to 25-617:35
HKG
-
ONT
1 stop15h 25m
China Airlines
su 12-700:45
ONT
-
HKG
1 stop17h 30m
China Airlines
Deal found 17-2HK$5,994
ma 16-310:20
HKG
-
ONT
1 stop22h 30m
China Airlines
to 10-900:45
ONT
-
HKG
1 stop18h 20m
China Airlines
Deal found 19-2HK$6,017
ma 23-317:35
HKG
-
ONT
1 stop15h 15m
China Airlines
ke 29-400:10
ONT
-
HKG
1 stop18h 55m
China Airlines
Deal found 20-2HK$6,025
ti 3-319:40
HKG
-
ONT
2 stops19h 04m
EVA Air
ti 10-316:02
ONT
-
HKG
2 stops27h 08m
EVA Air
Deal found 17-2HK$6,095
su 22-320:05
HKG
-
ONT
1 stop36h 45m
China Airlines
pe 11-900:45
ONT
-
HKG
1 stop17h 30m
China Airlines
Deal found 17-2HK$6,244

Find flight deals to Ontario

Find the latest flights to Ontario in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 20 helmikuu 2026.

Return from

HK$4,993

One-way from

HK$3,485

Popular in

August

Cheapest in

November

Average price

HK$6,150
China Airlines
  • China Airlines
  • 24-6-24-7
  • 2 total stops
  • 32h 55m total
  • Hong Kong to Los Angeles
Search Deals
China Airlines
  • China Airlines
  • 19-4
  • 1 total stop
  • 35h 45m total
  • Hong Kong to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (HK$843 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$128 potential savings vs. average return price).
Search Deals
Average for return flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Ontario that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 20 helmikuu 2026.
Use the filters below to find and compare flights to Ontario that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

ma 2-3

22:30-22:57

1 stop16h 27m

Ontario

pe 6-3

06:15-19:20

1 stop21h 05m

HK$5,533

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

su 12-4

22:30-20:36

2 stops37h 06m

Ontario

su 19-4

06:00-18:55

1 stop21h 55m

HK$5,533

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

la 14-3

22:30-22:57

1 stop15h 27m

Ontario

la 21-3

13:40-19:20

1 stop38h 40m

HK$5,533

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

la 18-4

11:45-20:36

2 stops23h 51m

Ontario

la 9-5

18:59-18:55

1 stop32h 56m

HK$5,533

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

la 7-3

10:35-20:50

2 stops26h 15m

Ontario

la 14-3

18:37-19:20

1 stop33h 43m

HK$5,533

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

ti 10-3

22:30-22:57

1 stop15h 27m

Ontario

la 14-3

18:37-05:45

1 stop20h 08m

HK$5,533

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

to 25-6

11:45-22:34

1 stop25h 49m

Ontario

su 12-7

13:33-05:00

1 stop24h 27m

HK$5,533

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

ma 9-3

11:25-17:50

1 stop21h 25m

Ontario

ma 23-3

23:50-09:15

1 stop18h 25m

HK$5,603

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

to 25-6

17:35-18:00

1 stop15h 25m

Ontario

la 11-7

00:45-09:15

1 stop17h 30m

HK$5,994

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

to 25-6

17:35-18:00

1 stop15h 25m

Ontario

to 9-7

00:45-09:15

1 stop17h 30m

HK$5,994

Flights are sorted by cheapest return flights first.

Deals found on 16-2

Showing 1-10 of 22 results
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 20 helmikuu 2026.
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
804 reviews
Check prices

Comfort

8.0

Overall

8.3

Boarding

8.3

Crew

8.5

Entertainment

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
China Airlines
8.3
Very Good
804 reviews
China Airlines
8.3
Very Good
804 reviews
Check prices

Comfort

8.0

Overall

8.3

Boarding

8.3

Crew

8.5

Entertainment

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.

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.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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Search flights to Ontario by cabin class

Find flights to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Premium Economy Class
Economy class

Fly with Cheapflights

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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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