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HK$907+ 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 25-8. 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
31 Mar — 7 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 1 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 1 March 2026.

Tue 19-523:25
ONT
-
JFK
Nonstop5h 25m
JetBlue
Sat 23-517:30
JFK
-
ONT
Nonstop6h 15m
JetBlue
Deal found 26-2HK$1,807
Fri 1-514:20
ONT
-
TPA
2 stops12h 42m
Delta
Tue 5-507:40
TPA
-
ONT
1 stop12h 35m
Delta
Deal found 26-2HK$1,948
Thu 7-511:52
ONT
-
JFK
1 stop9h 36m
Delta
Tue 12-506:00
JFK
-
ONT
1 stop7h 57m
Delta
Deal found 27-2HK$2,010
Wed 27-522:00
ONT
-
JFK
Nonstop5h 16m
JetBlue
Wed 3-617:30
JFK
-
ONT
Nonstop6h 15m
JetBlue
Deal found 25-2HK$2,026
Wed 15-417:55
ONT
-
JFK
1 stop9h 58m
Delta
Tue 21-407:45
JFK
-
ONT
1 stop12h 30m
Delta
Deal found 27-2HK$2,041
Fri 28-823:59
ONT
-
JFK
Nonstop5h 22m
JetBlue
Wed 2-919:35
JFK
-
ONT
Nonstop6h 05m
JetBlue
Deal found 26-2HK$2,065
Tue 14-411:53
ONT
-
JFK
1 stop9h 27m
Delta
Tue 21-410:00
JFK
-
ONT
2 stops15h 37m
Delta
Deal found 25-2HK$2,081
Mon 1-622:00
ONT
-
JFK
Nonstop5h 16m
JetBlue
Thu 11-619:35
JFK
-
ONT
Nonstop6h 05m
JetBlue
Deal found 28-2HK$2,128
Sat 25-407:00
ONT
-
EWR
1 stop8h 29m
Alaska Airlines
Tue 28-415:30
EWR
-
ONT
1 stop10h 02m
Alaska Airlines
Deal found 27-2HK$2,167
Tue 28-410:39
ONT
-
JFK
1 stop9h 20m
Alaska Airlines
Wed 29-407:00
JFK
-
ONT
1 stop10h 32m
Alaska Airlines
Deal found 25-2HK$2,167
Sat 18-422:15
ONT
-
EWR
1 stop8h 14m
Delta
Sat 25-415:29
EWR
-
ONT
1 stop8h 31m
Delta
Deal found 27-2HK$2,174
Thu 16-411:53
ONT
-
JFK
1 stop9h 27m
Delta
Tue 21-407:45
JFK
-
ONT
1 stop12h 30m
Delta
Deal found 27-2HK$2,182

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

Fly to

Route

Departure

Return

Price

OntarioTampa

ONT - TPA

ONTTPA

Ontario

Fri 1-5

14:20-06:02

2 stops12h 42m

Tampa

Tue 5-5

07:40-17:15

1 stop12h 35m

HK$1,948

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Sat 18-4

22:15-09:29

1 stop8h 14m

Newark

Sat 25-4

12:00-18:33

1 stop9h 33m

HK$2,174

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Thu 16-4

10:33-23:11

1 stop9h 38m

Newark

Wed 22-4

07:29-14:32

1 stop10h 03m

HK$2,370

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 14-8

07:00-18:16

1 stop8h 16m

New York John F Kennedy Intl

Sun 16-8

10:10-18:01

1 stop10h 51m

HK$2,401

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 1-4

06:00-23:11

1 stop14h 11m

Newark

Wed 8-4

17:00-23:59

1 stop9h 59m

HK$2,425

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Thu 4-6

11:52-00:26

1 stop9h 34m

New York John F Kennedy Intl

Wed 10-6

10:10-18:15

1 stop11h 05m

HK$2,722

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 18-8

17:32-06:05

1 stop9h 33m

Newark

Tue 25-8

17:41-23:59

1 stop9h 18m

HK$2,800

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 24-3

06:00-18:29

1 stop9h 29m

Newark

Tue 31-3

07:18-23:59

1 stop19h 41m

HK$2,972

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 17-3

16:02-07:05

1 stop12h 03m

New York John F Kennedy Intl

Wed 18-3

16:31-23:59

1 stop10h 28m

HK$3,027

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 13-3

16:02-07:05

1 stop12h 03m

New York John F Kennedy Intl

Wed 18-3

16:31-23:59

1 stop10h 28m

HK$3,027

Flights are sorted by cheapest return flights first.

Deals found on 25-2

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 20 February 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 73 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$3,825). Flying from Ontario in July will prove the most costly (average of HK$6,461). 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$3,823

What are popular destinations to fly to from Ontario?

If you’re flying from Ontario, these routes are more frequently taken by airlines Dallas (115 flights per day), Seattle (87 flights per day) and Phoenix (68 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
809 reviews
Check prices

Food

7.8

Boarding

8.3

Overall

8.3

Entertainment

8.0

Crew

8.5

Comfort

8.0

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
809 reviews
China Airlines
8.3
Very Good
809 reviews
Check prices

Food

7.8

Boarding

8.3

Overall

8.3

Entertainment

8.0

Crew

8.5

Comfort

8.0

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.
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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 1 March 2026.

  • 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 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$5,780 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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