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HK$1,006+ Cheap flights from 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 10-3. 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
15 Feb — 22 Feb1
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 16 January 2026.

Cheapest airline

Delta

Good round-trip deal

HK$1,881 or less
On average, Delta currently has the cheapest one-way flight from Ontario (avg. price of HK$1,396).
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Price to beat on a round-trip flight from Ontario.
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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 16 January 2026.

Wed 25-216:02
ONT
-
JFK
1 stop12h 03m
Alaska Airlines
Fri 27-216:25
JFK
-
ONT
1 stop10h 07m
Alaska Airlines
Deal found 16-1HK$2,004
Mon 9-317:53
ONT
-
JFK
1 stop10h 22m
Delta
Thu 12-307:30
JFK
-
ONT
1 stop12h 42m
Delta
Deal found 16-1HK$2,098
Fri 30-107:00
ONT
-
JFK
1 stop29h 18m
Alaska Airlines
Thu 5-216:22
JFK
-
ONT
1 stop10h 34m
Alaska Airlines
Deal found 16-1HK$2,106
Tue 19-512:00
ONT
-
JFK
1 stop10h 07m
Delta
Wed 27-510:10
JFK
-
ONT
1 stop11h 05m
Delta
Deal found 15-1HK$2,176
Wed 27-522:59
ONT
-
JFK
1 stop7h 49m
Delta
Tue 2-612:25
JFK
-
ONT
1 stop8h 50m
Delta
Deal found 15-1HK$2,191
Tue 24-206:10
ONT
-
TPA
1 stop7h 54m
United Airlines
Wed 25-217:06
TPA
-
ONT
1 stop7h 53m
United Airlines
Deal found 16-1HK$2,207
Sat 31-107:30
ONT
-
JFK
1 stop11h 31m
Delta
Thu 5-215:20
JFK
-
ONT
1 stop8h 45m
Delta
Deal found 16-1HK$2,215
Fri 30-107:30
ONT
-
JFK
1 stop11h 31m
Delta
Mon 2-206:10
JFK
-
ONT
1 stop9h 06m
Delta
Deal found 16-1HK$2,238
Thu 29-106:00
ONT
-
JFK
1 stop10h 28m
Alaska Airlines
Fri 6-216:22
JFK
-
ONT
1 stop10h 34m
Alaska Airlines
Deal found 15-1HK$2,262
Wed 22-406:00
ONT
-
JFK
1 stop10h 11m
Alaska Airlines
Thu 30-407:00
JFK
-
ONT
1 stop10h 32m
Alaska Airlines
Deal found 15-1HK$2,277
Wed 22-415:26
ONT
-
EWR
1 stop11h 33m
Alaska Airlines
Wed 29-407:30
EWR
-
ONT
1 stop10h 02m
Alaska Airlines
Deal found 16-1HK$2,316
Sat 23-523:25
ONT
-
JFK
Nonstop5h 25m
JetBlue
Tue 26-518:59
JFK
-
ONT
Nonstop6h 10m
JetBlue
Deal found 16-1HK$2,316

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 16 January 2026. 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

Fri 6-2

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Wed 25-2

17:00-23:52

1 stop9h 52m

HK$2,004

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Wed 25-2

16:02-07:05

1 stop12h 03m

New York John F Kennedy Intl

Mon 2-3

16:25-23:32

1 stop10h 07m

HK$2,004

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 3-3

06:14-19:10

1 stop9h 56m

New York John F Kennedy Intl

Wed 11-3

17:00-23:52

1 stop9h 52m

HK$2,004

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 30-1

17:59-15:18

1 stop18h 19m

New York John F Kennedy Intl

Thu 5-2

16:22-23:56

1 stop10h 34m

HK$2,106

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 31-1

17:59-15:18

1 stop18h 19m

New York John F Kennedy Intl

Thu 5-2

16:22-23:56

1 stop10h 34m

HK$2,106

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 30-1

07:30-22:01

1 stop11h 31m

New York John F Kennedy Intl

Mon 2-2

18:41-23:58

1 stop8h 17m

HK$2,238

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Thu 5-2

06:00-19:28

1 stop10h 28m

New York John F Kennedy Intl

Mon 9-2

17:17-13:06

1 stop22h 49m

HK$2,238

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 25-4

10:39-22:59

1 stop9h 20m

New York John F Kennedy Intl

Tue 28-4

07:00-14:32

1 stop10h 32m

HK$2,277

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 28-2

16:02-07:05

1 stop12h 03m

New York John F Kennedy Intl

Sat 7-3

16:25-23:32

1 stop10h 07m

HK$2,277

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 3-3

06:14-18:28

1 stop9h 14m

Newark

Wed 11-3

17:30-23:52

1 stop9h 22m

HK$2,316

Flights are sorted by cheapest return flights first.

Deals found on 16-1

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 9 January 2026.

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, January is the cheapest month in which you can book a flight from Ontario (average of HK$4,601). Flying from Ontario in June will prove the most costly (average of HK$6,980). 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$6,718

What are popular destinations to fly to from Ontario?

If you’re flying from Ontario, these routes are more frequently taken by airlines Dallas (96 flights per day), Seattle (75 flights per day) and Atlanta (63 flights per day).

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From HK$1,881

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Seattle/Tacoma Intl, with prices starting at HK$1,881. Explore other affordable destinations below.

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From HK$1,881

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
798 reviews
Check prices

Entertainment

8.0

Overall

8.3

Boarding

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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
798 reviews
China Airlines
8.3
Very Good
798 reviews
Check prices

Entertainment

8.0

Overall

8.3

Boarding

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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.

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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 16 January 2026.

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

    This month, the top selected destinations from Ontario are Guadalajara, Dallas/Fort Worth Airport, Honolulu. 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 flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as HK$1,881 to Seattle (prices may vary depending on the airline and departure time). On average, users have booked flights for HK$4,776 to fly from Ontario.

  • What is the cheapest month to fly from Ontario?

    Currently, the cheapest month for flights from Ontario is January. 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$4,975 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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