What airport do you fly into for flights to Ontario?

For a flight to Ontario, you will be flying into Ontario. Ontario (ONT) is just 4.9 km from the centre of the city.

Can I find cheaper flights to Ontario if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to Ontario?

Based on reviews from Cheapflights users, China Airlines is rated the highest out of the airlines that fly to Ontario.

Does Ontario have rental cars?

Yes. Those touching down at Ontario can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Ontario?

Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 km away from Ontario).

What are the most popular airlines that fly to Ontario?

The most popular airline flying from Hong Kong to Ontario is China Airlines.

How long is the flight to Ontario?

On average, a flight from Hong Kong to Ontario takes 15 hours 30 minutes. Flights to Ontario from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

HK$4,047+ Cheap Flights to Ontario, California

Flights to Ontario in 2026

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Mon 9-1100:55 -

2 stops38h 05m

Wed 25-1107:00 -

2 stops24h 10m

Deal found 1-11HK$6,643

Sun 13-1200:55 -

2 stops32h 20m

Mon 4-107:00 -

2 stops24h 10m

Deal found 2-11HK$6,667

Sat 5-1218:10 -

2 stops44h 49m

Mon 4-107:00 -

2 stops24h 10m

Deal found 2-11HK$7,067

Sun 22-1118:10 -

2 stops39h 06m

Wed 25-1117:56 -

2 stops37h 14m

Deal found 4-11HK$7,436

Tue 10-1119:45 -

1 stop36h 10m

Wed 25-1121:45 -

1 stop21h 00m

Deal found 1-11HK$7,444

Sun 13-1200:55 -

2 stops32h 20m

Thu 7-107:00 -

2 stops24h 10m

Deal found 2-11HK$7,467

Mon 9-1117:35 -

1 stop15h 30m

Mon 23-1122:50 -

1 stop22h 10m

Deal found 1-11HK$7,506

Mon 9-1111:15 -

1 stop20h 40m

Wed 11-1121:45 -

1 stop21h 00m

Deal found 3-11HK$7,569

Sun 13-1217:35 -

1 stop15h 30m

Wed 30-1222:50 -

1 stop18h 25m

Deal found 4-11HK$7,632

Find flight deals to Ontario

Return from	HK$5,600
One-way from	HK$4,047
Popular in	July
Cheapest in	March
Average price	HK$5,608

United Airlines
7-12-22-2
Nonstop
28h 55m total
Hong Kong to Los Angeles

Search Deals

1-12-31-12
2 total stops
27h 33m total
Hong Kong to Ontario

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (HK$757 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (HK$168 potential savings vs. average return price).

Search Deals

Average for return flights in November 2026

Search Deals

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Fri 26-3

10:20-18:05

1 stop22h 45m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,643

Fastest return journey

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sun 13-12

14:05-17:05

1 stop19h 00m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,643

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sun 13-12

18:10-17:15

2 stops39h 05m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,785

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sat 14-11

10:20-17:05

1 stop22h 45m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$4,855

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Wed 25-11

11:10-17:05

1 stop21h 55m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$5,004

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Mon 28-12

10:20-17:05

1 stop22h 45m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$5,200

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sat 5-12

12:35-16:28

2 stops19h 53m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$5,310

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sun 17-1

00:55-22:34

2 stops37h 39m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$5,953

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sat 16-1

00:55-22:35

2 stops37h 40m

Ontario

Wed 31-12

00:00-16:00

Nonstop0h 00m

HK$6,361

Hong KongOntario

HKG Hong Kong Intl - ONT Ontario

HKGONT

Hong Kong Intl

Sun 13-12

00:55-17:15

2 stops32h 20m

Ontario

Fri 8-1

07:00-23:10

2 stops24h 10m

HK$7,067

Flights are sorted by cheapest return flights first.

Deals found on 3-11

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario with our price prediction graph.

HKG-ONT

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.

Cheapflights Insights

Everything you need to know about your flight to Ontario

Airlines

The cheapest airline flying from Hong Kong to Ontario is China Airlines.

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with China Airlines to the United States 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

856 reviews

Check prices

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

856 reviews

China Airlines

8.3

Very Good

856 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Dec 2025

TPE - SFO

FAQs about flying to Ontario

What airport do you fly into for flights to Ontario?
For a flight to Ontario, you will be flying into Ontario. Ontario (ONT) is just 4.9 km from the centre of the city.
Can I find cheaper flights to Ontario if I am willing to have stopovers?
Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to Ontario?
Based on reviews from Cheapflights users, China Airlines is rated the highest out of the airlines that fly to Ontario.
Does Ontario have rental cars?
Yes. Those touching down at Ontario can take advantage of the car hire services offered upon their arrival.
Are there hotels close to Ontario?
Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 km away from Ontario).

See more FAQs

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Deals for Ontario flights 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 to Ontario?

Cheapflights helps you find that perfect flight to Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Ontario with no change fees?

Certainly. Search results for flights to Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Ontario flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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HK$4,047+ Cheap flights to Ontario

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1-12. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to Ontario in 2026

Cheapest flights to OntarioExplore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Best flights to OntarioDiscover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Discover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Last-minute flights to OntarioDiscover last-minute flight deals to Ontario. Data last updated 6 November 2026 and is based on user searches.

Discover last-minute flight deals to Ontario. Data last updated 6 November 2026 and is based on user searches.

One-way flights to OntarioSearch for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

Search for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

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Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario with our price prediction graph.

Cheapflights Insights

What are the cheapest airlines that fly to Ontario?

The cheapest airline flying from Hong Kong to Ontario is China Airlines.

Rainfall in Ontario by month

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

How long is the flight to Ontario?

On average, a flight from Hong Kong to Ontario takes 15 hours 30 minutes. Flights to Ontario from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with China Airlines to the United States 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.

FAQs about flying to Ontario

What airport do you fly into for flights to Ontario?

Can I find cheaper flights to Ontario if I am willing to have stopovers?

What is the best airline to fly to Ontario?

Does Ontario have rental cars?

Are there hotels close to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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How does Cheapflights help users find flights to Ontario?

Why should you use Cheapflights to find cheap flight tickets to Ontario?

Can Cheapflights find flights to Ontario with no change fees?

Can Cheapflights notify me if prices for flights to Ontario become cheaper?

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Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Best flights to Ontario
Discover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Last-minute flights to Ontario
Discover last-minute flight deals to Ontario. Data last updated 6 November 2026 and is based on user searches.

One-way flights to Ontario
Search for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.