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HK$598+ 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 11-11. 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
21 Nov — 28 Nov1
1 adult
1 adult, Economy

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 22 October 2025.

Cheapest airline

Delta
On average, Delta currently has the cheapest one-way flight from Ontario (avg. price of HK$1,391).
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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 22 October 2025.

Wed 10-1211:15ONT - TPA
1 stop8h 00mSouthwest
Thu 11-1207:05TPA - ONT
2 stops10h 45mSouthwest
Deal found 20-10HK$1,772
Sun 15-206:00ONT - EWR
1 stop8h 59mUnited Airlines
Thu 19-206:00EWR - ONT
1 stop9h 38mUnited Airlines
Deal found 20-10HK$1,935
Wed 25-206:05ONT - TPA
2 stops8h 30mSouthwest
Tue 3-306:40TPA - ONT
2 stops8h 45mSouthwest
Deal found 22-10HK$1,950
Tue 17-222:30ONT - JFK
1 stop9h 47mDelta
Wed 25-206:00JFK - ONT
1 stop8h 38mDelta
Deal found 20-10HK$1,997
Tue 16-1206:00ONT - JFK
1 stop10h 29mAlaska Airlines
Mon 12-116:22JFK - ONT
1 stop10h 34mAlaska Airlines
Deal found 20-10HK$2,152
Tue 9-1206:40ONT - TPA
1 stop10h 37mDelta
Tue 20-107:10TPA - ONT
1 stop8h 24mDelta
Deal found 20-10HK$2,176
Sat 13-1207:05ONT - TPA
1 stop8h 58mDelta
Wed 21-105:55TPA - ONT
1 stop8h 43mDelta
Deal found 20-10HK$2,183
Sat 13-1216:49ONT - TPA
2 stops14h 15mDelta
Tue 20-116:45TPA - ONT
1 stop7h 29mDelta
Deal found 20-10HK$2,214
Thu 29-105:15ONT - TPA
2 stops7h 45mSouthwest
Mon 2-209:50TPA - ONT
2 stops11h 50mSouthwest
Deal found 21-10HK$2,222
Sat 13-1206:00ONT - JFK
1 stop10h 29mAlaska Airlines
Sat 7-211:30JFK - ONT
1 stop12h 06mAlaska Airlines
Deal found 20-10HK$2,238
Thu 27-1106:00ONT - EWR
1 stop8h 41mDelta
Thu 4-1219:00EWR - ONT
1 stop7h 58mDelta
Deal found 22-10HK$2,292
Thu 11-1212:12ONT - TPA
1 stop9h 07mDelta
Tue 20-116:45TPA - ONT
1 stop7h 29mDelta
Deal found 20-10HK$2,308

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 22 October 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

Tue 13-1

22:30-11:17

1 stop9h 47m

New York John F Kennedy Intl

Wed 14-1

15:30-21:14

1 stop8h 44m

HK$1,997

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 16-12

06:00-19:29

1 stop10h 29m

New York John F Kennedy Intl

Tue 13-1

11:30-20:36

1 stop12h 06m

HK$2,152

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 9-1

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Wed 21-1

07:00-15:08

1 stop11h 08m

HK$2,152

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Thu 29-1

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Sun 1-2

07:00-15:08

1 stop11h 08m

HK$2,152

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Wed 17-12

06:00-16:00

1 stop7h 00m

New York John F Kennedy Intl

Sat 7-2

15:55-22:38

1 stop9h 43m

HK$2,238

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 14-4

11:55-00:09

1 stop9h 14m

New York John F Kennedy Intl

Thu 16-4

10:10-18:15

1 stop11h 05m

HK$2,238

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Wed 10-12

06:00-19:29

1 stop10h 29m

New York John F Kennedy Intl

Wed 7-1

07:00-15:08

1 stop11h 08m

HK$2,238

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Wed 11-3

06:00-19:29

1 stop10h 29m

New York John F Kennedy Intl

Sat 14-3

16:00-22:37

1 stop9h 37m

HK$2,238

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Thu 15-1

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Tue 20-1

07:00-15:08

1 stop11h 08m

HK$2,238

OntarioTampa

ONT - TPA

ONTTPA

Ontario

Fri 12-12

12:12-21:25

1 stop6h 13m

Tampa

Tue 20-1

14:45-21:14

1 stop9h 29m

HK$2,308

Flights are sorted by cheapest return flights first.

Deals found on 20-10

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 17 October 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 12 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$4,654). Flying from Ontario in June will prove the most costly (average of HK$7,156). 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$7,060

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
772 reviews
Check prices

Comfort

8.0

Food

7.8

Entertainment

8.0

Crew

8.5

Overall

8.3

Boarding

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
772 reviews
China Airlines
8.3
Very Good
772 reviews
Check prices

Comfort

8.0

Food

7.8

Entertainment

8.0

Crew

8.5

Overall

8.3

Boarding

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 22 October 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$5,571 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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