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HK$786+ Cheap flights from Ontario

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17-12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — HKG
23 Dec — 30 Dec1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Ontario

Discover essential information about flights departing from Ontario, including flight schedules, destinations, airlines operating at the Ontario airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 23 November 2025.

Cheapest airline

Delta
On average, Delta currently has the cheapest one-way flight from Ontario (avg. price of HK$1,393).
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Find flights from Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 23 November 2025.

Wed 25-206:14ONT - JFK
1 stop9h 56mAlaska Airlines
Tue 3-317:00JFK - ONT
1 stop9h 52mAlaska Airlines
Deal found 22-11HK$1,946
Thu 22-106:00ONT - JFK
1 stop10h 28mAlaska Airlines
Sat 31-111:30JFK - ONT
1 stop12h 06mAlaska Airlines
Deal found 22-11HK$1,953
Thu 19-207:00ONT - JFK
1 stop29h 45mAlaska Airlines
Sun 22-217:00JFK - ONT
1 stop9h 52mAlaska Airlines
Deal found 23-11HK$1,961
Tue 3-306:14ONT - JFK
1 stop9h 56mAlaska Airlines
Thu 12-317:00JFK - ONT
1 stop9h 52mAlaska Airlines
Deal found 22-11HK$1,969
Fri 30-113:46ONT - JFK
1 stop22h 32mAlaska Airlines
Thu 5-207:00JFK - ONT
1 stop11h 08mAlaska Airlines
Deal found 23-11HK$1,977
Sun 25-106:00ONT - JFK
1 stop10h 28mAlaska Airlines
Thu 29-107:00JFK - ONT
1 stop11h 08mAlaska Airlines
Deal found 21-11HK$1,992
Sat 2-517:55ONT - JFK
1 stop9h 31mDelta
Tue 5-512:25JFK - ONT
1 stop8h 50mDelta
Deal found 22-11HK$2,000
Sat 6-1206:00ONT - JFK
1 stop10h 29mAlaska Airlines
Thu 11-1216:00JFK - ONT
1 stop10h 29mAlaska Airlines
Deal found 20-11HK$2,055
Sat 6-1217:49ONT - JFK
1 stop9h 26mDelta
Sat 13-1207:00JFK - ONT
1 stop13h 07mDelta
Deal found 22-11HK$2,101
Sat 13-1217:49ONT - JFK
1 stop9h 26mDelta
Wed 7-106:00JFK - ONT
1 stop8h 31mDelta
Deal found 21-11HK$2,156
Wed 18-218:37ONT - EWR
1 stop8h 22mUnited Airlines
Fri 20-215:30EWR - ONT
1 stop8h 20mUnited Airlines
Deal found 22-11HK$2,163
Sun 11-122:30ONT - JFK
1 stop9h 45mDelta
Sat 17-105:59JFK - ONT
1 stop8h 32mDelta
Deal found 22-11HK$2,163

Find flights from Ontario within your budget

 
Find flights departing from Ontario that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 23 November 2025. In the last 7 days, Cheapflights users made a total of 70,647 searches

Fly to

Hong Kong

Route

Departure

Return

Price

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Thu 5-2

16:03-15:23

1 stop20h 20m

New York John F Kennedy Intl

Tue 10-2

11:30-20:36

1 stop12h 06m

HK$1,953

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Thu 8-1

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Sat 10-1

17:17-13:06

1 stop22h 49m

HK$1,953

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Mon 26-1

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Tue 3-2

07:00-15:08

1 stop11h 08m

HK$1,953

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Thu 19-2

07:00-15:45

1 stop29h 45m

New York John F Kennedy Intl

Sun 22-2

17:00-23:52

1 stop9h 52m

HK$1,961

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 30-1

07:00-15:18

1 stop29h 18m

New York John F Kennedy Intl

Tue 3-2

17:17-13:06

1 stop22h 49m

HK$1,969

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Wed 4-3

06:14-19:10

1 stop9h 56m

New York John F Kennedy Intl

Thu 12-3

17:00-23:52

1 stop9h 52m

HK$1,969

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 30-1

13:46-15:18

1 stop22h 32m

New York John F Kennedy Intl

Thu 5-2

07:00-15:08

1 stop11h 08m

HK$1,977

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Mon 26-1

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Mon 2-2

07:00-15:08

1 stop11h 08m

HK$1,992

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sun 25-1

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Sat 31-1

11:30-20:36

1 stop12h 06m

HK$1,992

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Thu 29-1

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Sat 31-1

11:30-20:36

1 stop12h 06m

HK$1,992

Flights are sorted by cheapest return flights first.

Deals found on 22-11

Showing 1-10 of 60 results
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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
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.

Travel insights for flights from Ontario

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

When is the best time to book a flight from Ontario?

Use this chart to determine the optimal time to book a return flight from Ontario to Hong Kong. Price data was last updated on 14 November 2025.

The price you pay for your flight from Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 20 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Ontario?

Currently, September is the cheapest month in which you can book a flight from Ontario (average of HK$4,662). Flying from Ontario in June will prove the most costly (average of HK$7,152). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Ontario?

Only one airline operates round-trip flights from Ontario: China Airlines. This airline flies to the following popular destinations: Hong Kong.

China Airlines
China Airlines
From HK$7,071

Airline reviews for flights from Ontario

Get insights into the airlines that provide service from Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Ontario. In the last 7 days, Cheapflights users made a total of 70,647 searches.
Get a feel of what it's like to fly with China Airlines from Ontario 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
782 reviews
Check prices

Boarding

8.3

Crew

8.6

Food

7.8

Entertainment

8.0

Comfort

8.0

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very Good
782 reviews
China Airlines
8.3
Very Good
782 reviews
Check prices

Boarding

8.3

Crew

8.6

Food

7.8

Entertainment

8.0

Comfort

8.0

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

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Related info for your journey

Access useful and relevant information related to your journey from Ontario. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 23 November 2025.

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

    This month, the top selected destinations from Ontario are Dallas/Fort Worth Airport, Denver, Guadalajara. Throughout the year, Dallas/Fort Worth Airport, Denver, Guadalajara are some of the top choices made by users flying from Ontario.

  • What is the cheapest month to fly from Ontario?

    Currently, the cheapest month for flights from Ontario is September. The most expensive month for flights is June. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

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

    Check out the cheapest flights from Ontario to embark to:
    Fly from Ontario to Hong Kong from HK$4,957 round trip

  • How does Cheapflights help users find flights from Ontario?

    Deals for flights from Ontario 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 from Ontario?

    Millions of users choose and trust Cheapflights to book the best flight deals from Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

    Yes! Cheapflights helps users easily find flights from Ontario with no change fees.

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

    Not ready to book yet? You can track prices for flights from Ontario on Cheapflights with our Price Alerts feature and get notified when better prices are available.

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario?

Deals for flights from Ontario 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 from Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario with no change fees.

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

Not ready to book yet? You can track prices for flights from Ontario on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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