How long is the flight from Hong Kong to Ontario?

United Airlines can get you from Hong Kong to Ontario in just under 18h 37m. Your travel time can differ by up to . The distance between Hong Kong and Ontario is about 11705 km.

What is the cheapest airline to fly from Hong Kong to Ontario round-trip?

According to our current data, China Airlines (HK$5,869), offers the cheapest pricing from Hong Kong to Ontario. This flight start at 26% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

What is the cheapest time of day to fly from HKG to ONT?

When flying from Hong Kong to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Hong Kong to Ontario that include hotel bookings?

Yes. In addition to deals on Hong Kong to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Hong Kong to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Ontario.

Can I find deals for business class flights from Hong Kong to Ontario?

Yes. Cheapflights offers flight deals from Hong Kong to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

HK$3,191+ Cheap Flights from Hong Kong to Ontario

Cheap flight deals from Hong Kong to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Hong Kong to Ontario
Explore the most affordable flight options available from Hong Kong to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Fri 18-911:45 -

2 stops40h 05m

Tue 22-913:18 -

2 stops38h 37m

Deal found 1-9HK$7,119

Fri 16-1011:45 -

1 stop20h 51m

Mon 2-1106:00 -

1 stop21h 20m

Deal found 1-9HK$7,190

Mon 28-910:15 -

1 stop22h 45m

Mon 5-1000:10 -

1 stop18h 55m

Deal found 2-9HK$7,464

Mon 26-1008:55 -

2 stops29h 47m

Tue 10-1116:09 -

2 stops38h 41m

Deal found 4-9HK$7,558

Sat 12-917:35 -

1 stop16h 05m

Fri 18-900:10 -

1 stop21h 55m

Deal found 1-9HK$7,676

Thu 3-914:05 -

1 stop19h 35m

Tue 15-900:10 -

1 stop25h 25m

Deal found 1-9HK$7,684

Sat 19-917:35 -

1 stop15h 25m

Sat 3-1000:10 -

1 stop18h 05m

Deal found 3-9HK$7,762

Mon 19-1011:20 -

1 stop20h 45m

Thu 5-1106:00 -

2 stops44h 10m

Deal found 5-9HK$7,786

Mon 7-908:35 -

1 stop23h 30m

Fri 11-923:30 -

1 stop19h 40m

Deal found 1-9HK$7,801

Sat 26-913:35 -

1 stop18h 30m

Sat 3-1023:30 -

1 stop19h 30m

Deal found 4-9HK$7,817

Find flight deals from Hong Kong to Ontario

Round-trip from	HK$7,119
One-way from	HK$3,191
Popular in	January
Cheapest in	April
Average price	HK$7,394

United Airlines
18-9-22-9
4 total stops
78h 42m total
Hong Kong to Ontario

Search Deals

28-9-31-12
2 total stops
21h 06m total
Hong Kong to Ontario

Search Deals

Highest demand for flights based on searches. 30% potential increase in price (HK$26,871 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 12% potential price decrease (HK$7,078 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Departure

Return

Price

Cheapest return flight

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Tue 20-10

14:05-18:00

1 stop18h 55m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,618

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Tue 15-9

21:15-18:00

1 stop35h 45m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,657

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Thu 17-9

14:05-18:00

1 stop18h 55m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,657

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sun 13-9

17:35-18:40

1 stop16h 05m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,838

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Tue 2-3

11:10-17:05

1 stop21h 55m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,838

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Fri 22-1

19:40-10:38

2 stops30h 58m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$5,096

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Wed 2-12

19:40-11:09

2 stops31h 29m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$5,104

Fastest return journey

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Tue 15-12

17:35-17:05

1 stop15h 30m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$6,029

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sun 13-9

10:30-23:24

2 stops27h 54m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$6,210

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Wed 16-9

10:30-19:03

2 stops23h 33m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$6,210

Flights are sorted by cheapest return flights first.

Deals found on 1-9

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight from Hong Kong to Ontario

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

HKG-ONT

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.

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with China Airlines from Hong Kong to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

China Airlines

8.3

Very Good

844 reviews

Check prices

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

Reviews

1 / 20

2.0

Mediocre

Anonymous,Dec 2025

TPE - SFO

Related info for your journey

How long is the flight from Hong Kong to Ontario?
United Airlines can get you from Hong Kong to Ontario in just under 18h 37m. Your travel time can differ by up to . The distance between Hong Kong and Ontario is about 11705 km.
What is the cheapest airline to fly from Hong Kong to Ontario round-trip?
According to our current data, China Airlines (HK$5,869), offers the cheapest pricing from Hong Kong to Ontario. This flight start at 26% lower than the current average price 3 months from now.
Can I find deals for flights from Hong Kong to Ontario that include hotel bookings?
Yes. In addition to deals on Hong Kong to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Hong Kong to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Ontario.
Can I find deals for business class flights from Hong Kong to Ontario?
Yes. Cheapflights offers flight deals from Hong Kong to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Popular flights

Fly from Hong Kong to Ontario on these airlines

China Airlines flights from Hong Kong Intl to Ontario

Top airline flying from Hong Kong to Ontario

Airline	Cheapest	Average	Flexibility	On-time
China Airlines	CheapestHK$5,869	AverageHK$7,267	FlexibilityNo cancel fee	On-time70%	Search China Airlines flights

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How does Cheapflights help users find flights from Hong Kong to Ontario?

Deals for Hong Kong to 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 better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to 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 Hong Kong to Ontario.

Can Cheapflights find flights from Hong Kong to Ontario with no change fees?

Need flexible booking options for your flight to Ontario from Hong Kong? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Hong Kong to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Hong Kong to Ontario from HK$3,191

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28-9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Hong Kong to Ontario

Cheapest flights from Hong Kong to OntarioExplore the most affordable flight options available from Hong Kong to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Explore the most affordable flight options available from Hong Kong to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Best flights from Hong Kong to OntarioDiscover carefully curated flight deals from Hong Kong to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Discover carefully curated flight deals from Hong Kong to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights from Hong Kong to OntarioDiscover last-minute flight deals from Hong Kong to Ontario. Data last updated 5 September 2026 and is based on user searches.

Discover last-minute flight deals from Hong Kong to Ontario. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Hong Kong to OntarioSearch for one-way flight options from Hong Kong to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Search for one-way flight options from Hong Kong to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Find flight deals from Hong Kong to Ontario

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

Best time to book a flight from Hong Kong to Ontario

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

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with China Airlines from Hong Kong to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Hong Kong to Ontario?

What is the cheapest airline to fly from Hong Kong to Ontario round-trip?

Can I find deals for flights from Hong Kong to Ontario that include hotel bookings?

How can I find direct flights from Hong Kong to Ontario?

Can I find deals for business class flights from Hong Kong to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Hong Kong to Ontario on these airlines

Choose from the following airlines for your flight from Hong Kong to Ontario. Flights are based on user searches made on Cheapflights and were last updated on 5 September 2026.

Alternative routes for Hong Kong to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ontario by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

Search flights from Hong Kong to Ontario by cabin class

Find flights from Hong Kong to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hong Kong and Ontario flights

Browse other Hong Kong and Ontario flight options. Last updated on 5 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top airline flying from Hong Kong to Ontario

Fly with Cheapflights

How does Cheapflights help users find flights from Hong Kong to Ontario?

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

Can Cheapflights find flights from Hong Kong to Ontario with no change fees?

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

100% Free

Book With Flexibility

Travel Smart

Cheapest flights from Hong Kong to Ontario
Explore the most affordable flight options available from Hong Kong to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Best flights from Hong Kong to Ontario
Discover carefully curated flight deals from Hong Kong to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights from Hong Kong to Ontario
Discover last-minute flight deals from Hong Kong to Ontario. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Hong Kong to Ontario
Search for one-way flight options from Hong Kong to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.