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HK$931+ 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 14-4. 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
10 Apr — 17 Apr1
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 11 March 2026.

Cheapest airline

Delta

Good round-trip deal

HK$1,887 or less
On average, Delta currently has the cheapest one-way flight from Ontario (avg. price of HK$1,400).
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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 11 March 2026.

Fri 15-523:25
ONT
-
JFK
Nonstop5h 25m
JetBlue
Wed 20-518:59
JFK
-
ONT
Nonstop6h 10m
JetBlue
Deal found 8-3HK$2,128
Tue 28-406:00
ONT
-
JFK
1 stop10h 11m
Alaska Airlines
Wed 29-407:00
JFK
-
ONT
1 stop10h 32m
Alaska Airlines
Deal found 8-3HK$2,198
Sat 16-523:25
ONT
-
JFK
Nonstop5h 25m
JetBlue
Tue 19-518:59
JFK
-
ONT
Nonstop6h 10m
JetBlue
Deal found 7-3HK$2,206
Wed 27-512:08
ONT
-
JFK
1 stop9h 58m
Delta
Wed 3-606:00
JFK
-
ONT
1 stop7h 57m
Delta
Deal found 9-3HK$2,245
Tue 28-410:39
ONT
-
JFK
1 stop9h 20m
Alaska Airlines
Thu 30-416:29
JFK
-
ONT
1 stop10h 30m
Alaska Airlines
Deal found 7-3HK$2,261
Fri 15-523:25
ONT
-
JFK
Nonstop5h 25m
JetBlue
Tue 19-518:59
JFK
-
ONT
Nonstop6h 10m
JetBlue
Deal found 10-3HK$2,284
Fri 15-523:25
ONT
-
JFK
Nonstop5h 25m
JetBlue
Sat 16-518:59
JFK
-
ONT
Nonstop6h 10m
JetBlue
Deal found 9-3HK$2,324
Sat 30-522:00
ONT
-
JFK
Nonstop5h 16m
JetBlue
Tue 2-617:30
JFK
-
ONT
Nonstop6h 15m
JetBlue
Deal found 9-3HK$2,347
Tue 28-411:53
ONT
-
JFK
1 stop9h 27m
Delta
Wed 6-507:45
JFK
-
ONT
1 stop12h 30m
Delta
Deal found 10-3HK$2,355
Fri 22-522:00
ONT
-
JFK
Nonstop5h 16m
JetBlue
Tue 26-517:30
JFK
-
ONT
Nonstop6h 15m
JetBlue
Deal found 10-3HK$2,363
Thu 4-612:08
ONT
-
JFK
1 stop8h 00m
Delta
Sun 7-606:00
JFK
-
ONT
1 stop8h 20m
Delta
Deal found 9-3HK$2,402
Tue 28-411:53
ONT
-
JFK
1 stop9h 27m
Delta
Thu 7-506:00
JFK
-
ONT
1 stop7h 57m
Delta
Deal found 10-3HK$2,417

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 11 March 2026. In the last 7 days, Cheapflights users made a total of 70,647 searches

Fly to

Route

Departure

Return

Price

Cheapest return flight
Fastest return journey

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 7-7

23:59-08:21

Nonstop5h 22m

New York John F Kennedy Intl

Thu 20-8

19:35-22:40

Nonstop6h 05m

HK$2,480

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Mon 4-5

10:39-22:59

1 stop9h 20m

New York John F Kennedy Intl

Sat 9-5

16:29-23:48

1 stop10h 19m

HK$2,676

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 5-5

10:39-23:29

1 stop9h 50m

Newark

Fri 8-5

17:33-23:48

1 stop9h 15m

HK$2,683

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 29-4

10:39-23:29

1 stop9h 50m

Newark

Thu 7-5

07:29-14:32

1 stop10h 03m

HK$2,683

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 29-4

10:39-23:29

1 stop9h 50m

Newark

Fri 8-5

17:33-23:48

1 stop9h 15m

HK$2,683

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Mon 6-7

23:59-08:21

Nonstop5h 22m

New York John F Kennedy Intl

Fri 14-8

19:35-22:40

Nonstop6h 05m

HK$2,989

OntarioTampa

ONT - TPA

ONTTPA

Ontario

Thu 9-4

12:57-22:23

1 stop6h 26m

Tampa

Tue 14-4

17:15-23:44

2 stops9h 29m

HK$3,004

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 15-5

22:00-10:29

1 stop9h 29m

Newark

Mon 18-5

18:30-23:34

1 stop8h 04m

HK$3,004

OntarioTampa

ONT - TPA

ONTTPA

Ontario

Sat 18-7

12:00-00:20

1 stop9h 20m

Tampa

Sat 25-7

17:50-22:09

1 stop7h 19m

HK$3,184

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sun 5-7

23:59-08:21

Nonstop5h 22m

New York John F Kennedy Intl

Mon 10-8

19:35-22:40

Nonstop6h 05m

HK$3,223

Flights are sorted by cheapest return flights first.

Deals found on 8-3

Showing 1-10 of 60 resultsSorted by cheapest first
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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 6 March 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 77 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, June is the cheapest month in which you can book a flight from Ontario (average of HK$3,826). Flying from Ontario in July will prove the most costly (average of HK$6,431). 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$3,824

What are popular destinations to fly to from Ontario?

If you’re flying from Ontario, these routes are more frequently taken by airlines Dallas (108 flights per day), Seattle (90 flights per day) and Phoenix (85 flights per day).

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From HK$1,887

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$1,887. Explore other affordable destinations below.

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From HK$1,887

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
811 reviews
Check prices

Comfort

8.0

Overall

8.3

Entertainment

8.0

Food

7.8

Boarding

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
China Airlines
8.3
Very Good
811 reviews
China Airlines
8.3
Very Good
811 reviews
Check prices

Comfort

8.0

Overall

8.3

Entertainment

8.0

Food

7.8

Boarding

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.

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Direct flights from California

Book a direct flight from one of these other cities located in California.
Direct flights from Los Angeles
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Direct flights from San Jose

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 11 March 2026.

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

    This month, the top selected destinations from Ontario are Las Vegas, Dallas/Fort Worth Airport, Denver. Throughout the year, Las Vegas, Dallas/Fort Worth Airport, Denver 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$1,887 to Seattle (prices may vary depending on the airline and departure time). On average, users have booked flights for HK$1,887 to fly from Ontario.

  • What is the cheapest month to fly from Ontario?

    Currently, the cheapest month for flights from Ontario is June. The most expensive month for flights is July. 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$6,955 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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