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HK$603+ 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 13-9. 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 8月 — 28 8月1
1 adult

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 8月 2025.

Cheapest airline

Delta

Good one-way deal

HK$356 or less
On average, Delta currently has the cheapest one-way flight from Ontario (avg. price of HK$1,401).
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Price to beat on a one-way flight from Ontario.
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Find flights from Ontario

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 8月 2025.

週三 1-1022:56ONT - JFK
Nonstop5h 22mJetBlue
週三 8-1018:35JFK - ONT
Nonstop5h 54mJetBlue
Deal found 16-8HK$1,933
週三 5-1106:00ONT - EWR
1 stop9h 29mAlaska Airlines
週三 12-1107:30EWR - ONT
1 stop10h 47mAlaska Airlines
Deal found 14-8HK$1,956
週二 23-918:50ONT - EWR
1 stop7h 49mUnited Airlines
週二 30-906:15EWR - ONT
1 stop9h 36mUnited Airlines
Deal found 14-8HK$1,964
週三 10-1213:34ONT - EWR
1 stop6h 41mUnited Airlines
週二 16-1214:25EWR - ONT
2 stops11h 24mUnited Airlines
Deal found 15-8HK$2,003
週五 26-922:56ONT - JFK
Nonstop5h 22mJetBlue
週二 30-918:35JFK - ONT
Nonstop5h 54mJetBlue
Deal found 16-8HK$2,011
週四 4-922:56ONT - JFK
Nonstop5h 22mJetBlue
週三 10-918:35JFK - ONT
Nonstop5h 54mJetBlue
Deal found 16-8HK$2,019
週二 16-922:56ONT - JFK
Nonstop5h 22mJetBlue
週二 23-918:35JFK - ONT
Nonstop5h 54mJetBlue
Deal found 15-8HK$2,089
週六 6-922:56ONT - JFK
Nonstop5h 22mJetBlue
週六 13-918:35JFK - ONT
Nonstop5h 54mJetBlue
Deal found 16-8HK$2,097
週六 8-1107:00ONT - EWR
1 stop8h 29mUnited Airlines
週二 11-1115:29EWR - ONT
1 stop8h 15mUnited Airlines
Deal found 14-8HK$2,105
週三 12-1106:00ONT - EWR
1 stop9h 29mAlaska Airlines
週一 17-1107:30EWR - ONT
1 stop10h 47mAlaska Airlines
Deal found 15-8HK$2,136
週三 17-906:00ONT - TPA
1 stop11h 24mDelta
週三 24-916:13TPA - ONT
1 stop9h 10mDelta
Deal found 15-8HK$2,168
週二 16-911:55ONT - EWR
1 stop8h 06mDelta
週三 1-1013:15EWR - ONT
1 stop9h 00mDelta
Deal found 14-8HK$2,168

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 8月 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

週三 1-10

22:56-07:18

Nonstop5h 22m

New York John F Kennedy Intl

週三 8-10

18:35-21:29

Nonstop5h 54m

HK$1,933

OntarioNew York

ONT - JFK

ONTJFK

Ontario

週二 16-9

22:56-07:18

Nonstop5h 22m

New York John F Kennedy Intl

週三 24-9

18:35-21:29

Nonstop5h 54m

HK$1,933

OntarioNew York

ONT - JFK

ONTJFK

Ontario

週三 1-10

22:56-07:18

Nonstop5h 22m

New York John F Kennedy Intl

週二 7-10

18:35-21:29

Nonstop5h 54m

HK$1,933

OntarioNew York

ONT - JFK

ONTJFK

Ontario

週三 10-9

22:56-07:18

Nonstop5h 22m

New York John F Kennedy Intl

週三 17-9

18:35-21:29

Nonstop5h 54m

HK$1,933

OntarioNewark

ONT - EWR

ONTEWR

Ontario

週二 21-10

13:15-23:31

1 stop7h 16m

Newark

週三 29-10

06:00-12:37

1 stop9h 37m

HK$1,964

OntarioNewark

ONT - EWR

ONTEWR

Ontario

週二 23-9

18:50-05:39

1 stop7h 49m

Newark

週二 30-9

06:15-12:51

1 stop9h 36m

HK$1,964

OntarioNewark

ONT - EWR

ONTEWR

Ontario

週三 10-12

13:34-23:15

1 stop6h 41m

Newark

週二 16-12

14:25-22:49

2 stops11h 24m

HK$2,003

OntarioNew York

ONT - JFK

ONTJFK

Ontario

週六 27-9

22:56-07:18

Nonstop5h 22m

New York John F Kennedy Intl

週二 7-10

18:35-21:29

Nonstop5h 54m

HK$2,011

OntarioNew York

ONT - JFK

ONTJFK

Ontario

週一 29-9

22:56-07:18

Nonstop5h 22m

New York John F Kennedy Intl

週三 8-10

18:35-21:29

Nonstop5h 54m

HK$2,011

OntarioNew York

ONT - JFK

ONTJFK

Ontario

週五 5-9

22:56-07:18

Nonstop5h 22m

New York John F Kennedy Intl

週二 9-9

18:35-21:29

Nonstop5h 54m

HK$2,011

Flights are sorted by cheapest return flights first.

Deals found on 16-8

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 8 August 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, November is the cheapest month in which you can book a flight from Ontario (average of HK$4,781). Flying from Ontario in June will prove the most costly (average of HK$7,231). 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$909

What are popular destinations to fly to from Ontario?

If you’re flying from Ontario, these routes are more frequently taken by airlines Seattle (138 flights per day), Dallas (131 flights per day) and Atlanta (90 flights per day).

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From HK$46

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Las Vegas Harry Reid Intl, with prices starting at HK$356. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From HK$46

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
762 reviews
Check prices

Food

7.8

Overall

8.3

Boarding

8.3

Entertainment

8.0

Comfort

8.0

Crew

8.5

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
762 reviews
China Airlines
8.3
Very Good
762 reviews
Check prices

Food

7.8

Overall

8.3

Boarding

8.3

Entertainment

8.0

Comfort

8.0

Crew

8.5

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 16 8月 2025.

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

    This month, the top selected destinations from Ontario are Denver, 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$356 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for HK$356 to fly from Ontario.

  • What is the cheapest month to fly from Ontario?

    Currently, the cheapest month for flights from Ontario is November. 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$6,041 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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