How long is the flight from Kaohsiung to Ontario?

Airlines like United Airlines fly from Kaohsiung to Ontario in about 17h 08m. The time it takes to get you to your destination can typically vary by up to . The distance from Kaohsiung to Ontario is about 6975 mi.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

What is the cheapest time of day to fly from KHH to ONT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kaohsiung to Ontario as you normally would.

What airport do you fly into for flights to Ontario from Kaohsiung?

Most people fly into Ontario (ONT) if they book a flight to Ontario from Kaohsiung. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

Can I find deals for flights from Kaohsiung to Ontario that include hotel bookings?

Yes. In addition to deals on Kaohsiung to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Kaohsiung to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kaohsiung to Ontario.

Can I find deals for business class flights from Kaohsiung to Ontario?

Yes. Cheapflights offers flight deals from Kaohsiung to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$779+ Flights from Kaohsiung to Ontario

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Cheap flight deals from Kaohsiung to Ontario

Cheapest flights from Kaohsiung to Ontario
Explore the most affordable flight options available from Kaohsiung to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Tue 8/259:55 am

KHH

ONT

3 stops25h 22m

United Airlines

Mon 10/56:00 am

ONT

KHH

2 stops24h 00m

United Airlines

Deal found 1/26

$779

Thu 2/2611:30 am

KHH

ONT

2 stops17h 08m

United Airlines

Mon 3/26:37 pm

ONT

KHH

2 stops34h 43m

United Airlines

Deal found 1/28

$781

Fri 8/289:55 am

KHH

ONT

3 stops25h 22m

United Airlines

Mon 10/56:30 pm

ONT

KHH

2 stops35h 30m

United Airlines

Deal found 1/26

$795

Tue 8/259:55 am

KHH

ONT

2 stops22h 52m

United Airlines

Sun 10/45:00 am

ONT

KHH

2 stops25h 00m

United Airlines

Deal found 1/26

$798

Sun 8/309:55 am

KHH

ONT

2 stops22h 52m

United Airlines

Sun 10/45:00 am

ONT

KHH

2 stops25h 00m

United Airlines

Deal found 1/26

$814

Tue 8/259:55 am

KHH

ONT

2 stops22h 52m

United Airlines

Wed 10/76:00 am

ONT

KHH

2 stops24h 00m

United Airlines

Deal found 1/26

$827

Fri 8/289:55 am

KHH

ONT

2 stops28h 11m

United Airlines

Wed 10/76:00 am

ONT

KHH

2 stops24h 00m

United Airlines

Deal found 1/26

$843

Sat 8/299:55 am

KHH

ONT

2 stops22h 52m

United Airlines

Fri 10/26:00 am

ONT

KHH

2 stops24h 00m

United Airlines

Deal found 1/26

$859

Sat 8/299:55 am

KHH

ONT

2 stops22h 52m

United Airlines

Sat 10/36:00 am

ONT

KHH

2 stops24h 00m

United Airlines

Deal found 1/26

$923

Tue 1/2711:30 am

KHH

ONT

3 stops65h 17m

United Airlines

Sat 1/315:05 am

ONT

KHH

2 stops24h 15m

United Airlines

Deal found 1/26

$952

Fri 6/59:55 am

KHH

ONT

3 stops41h 38m

United Airlines

Sun 6/146:00 am

ONT

KHH

2 stops48h 00m

United Airlines

Deal found 1/27

$976

Best flights from Kaohsiung to Ontario
Discover carefully curated flight deals from Kaohsiung to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.

Thu 2/2611:30 am

KHH

ONT

2 stops17h 08m

United Airlines

Mon 3/25:00 am

ONT

KHH

3 stops48h 20m

United Airlines

Deal found 1/28

$781

Fri 6/59:55 am

KHH

ONT

3 stops41h 38m

United Airlines

Sun 6/146:00 am

ONT

KHH

2 stops48h 00m

United Airlines

Deal found 1/27

$976

Thu 6/49:55 am

KHH

ONT

2 stops28h 11m

United Airlines

Wed 6/176:00 am

ONT

KHH

2 stops24h 00m

United Airlines

Deal found 1/27

$1,189

Wed 6/39:55 am

KHH

ONT

2 stops28h 11m

United Airlines

Sun 6/146:00 am

ONT

KHH

2 stops48h 00m

United Airlines

Deal found 1/27

$1,309

Sat 3/1411:30 am

KHH

ONT

2 stops21h 08m

United Airlines

Sat 3/215:15 am

ONT

KHH

3 stops49h 05m

United Airlines

Deal found 1/28

$1,446

Fri 3/1311:30 am

KHH

ONT

3 stops40h 18m

United Airlines

Fri 3/206:15 am

ONT

KHH

2 stops24h 05m

United Airlines

Deal found 1/27

$1,507

Last-minute flights from Kaohsiung to Ontario
Discover last-minute flight deals from Kaohsiung to Ontario. Data last updated January 29, 2026 and is based on user searches.

Thu 2/2611:30 am

KHH

ONT

2 stops17h 08m

United Airlines

Mon 3/26:37 pm

ONT

KHH

2 stops34h 43m

United Airlines

Deal found 1/28

$781

One-way flights from Kaohsiung to Ontario
Search for one-way flight options from Kaohsiung to Ontario. Find affordable one-way fares based on user searches. Data last updated January 29, 2026.

Mon 7/279:55 am

KHH

ONT

2 stops22h 52m

United Airlines

Deal found 1/28

$867

Tue 7/289:55 am

KHH

ONT

2 stops28h 11m

United Airlines

Deal found 1/28

$938

Wed 6/249:55 am

KHH

ONT

3 stops41h 38m

United Airlines

Deal found 1/27

$940

Thu 6/259:55 am

KHH

ONT

2 stops22h 52m

United Airlines

Deal found 1/27

$1,030

Wed 6/247:05 am

KHH

ONT

2 stops25h 11m

Multiple Airlines

Deal found 1/27

$1,419

Find flight deals from Kaohsiung to Ontario

Round-trip from	$781 (United Airlines)
Popular in	July
Cheapest in	November
Average price	$926

From Kaohsiung to Ontario

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($115 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Thu 2/26

11:30 am-12:38 pm

2 stops17h 08m

Ontario

Mon 3/2

5:00 am-9:20 pm

3 stops48h 20m

$781

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Fri 6/5

9:55 am-12:33 pm

3 stops41h 38m

Ontario

Sun 6/14

6:00 am-9:00 pm

2 stops48h 00m

$976

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Thu 6/4

9:55 am-11:06 pm

2 stops28h 11m

Ontario

Wed 6/17

6:00 am-9:00 pm

2 stops24h 00m

$1,189

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Wed 6/3

9:55 am-11:06 pm

2 stops28h 11m

Ontario

Sun 6/14

6:00 am-9:00 pm

2 stops48h 00m

$1,309

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Sat 3/14

11:30 am-5:38 pm

2 stops21h 08m

Ontario

Sat 3/21

5:15 am-9:20 pm

3 stops49h 05m

$1,446

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Fri 3/13

11:30 am-12:48 pm

3 stops40h 18m

Ontario

Fri 3/20

6:15 am-9:20 pm

2 stops24h 05m

$1,507

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Mon 7/27

9:55 am-5:47 pm

2 stops22h 52m

$867

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Tue 7/28

9:55 am-11:06 pm

2 stops28h 11m

$938

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Wed 6/24

9:55 am-12:33 pm

3 stops41h 38m

$940

Kaohsiung CityOntario

KHH - ONT

KHHONT

Kaohsiung City

Thu 6/25

9:55 am-5:47 pm

2 stops22h 52m

$1,030

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 11 results

Best time to book a flight from Kaohsiung to Ontario

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

Estimated round-trip 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 from Kaohsiung to Ontario

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Ontario from Kaohsiung?
Most people fly into Ontario (ONT) if they book a flight to Ontario from Kaohsiung. Ontario is conveniently located just 3.1 mi from Ontario’s city center.
How long is the flight from Kaohsiung to Ontario?
Airlines like United Airlines fly from Kaohsiung to Ontario in about 17h 08m. The time it takes to get you to your destination can typically vary by up to . The distance from Kaohsiung to Ontario is about 6975 mi.
Can I find deals for flights from Kaohsiung to Ontario that include hotel bookings?
Yes. In addition to deals on Kaohsiung to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kaohsiung to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kaohsiung to Ontario.
Can I find deals for business class flights from Kaohsiung to Ontario?
Yes. Cheapflights offers flight deals from Kaohsiung to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Kaohsiung to Ontario

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$779+ Cheap flights from Kaohsiung to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kaohsiung to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kaohsiung to Ontario

Cheapest flights from Kaohsiung to OntarioExplore the most affordable flight options available from Kaohsiung to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Explore the most affordable flight options available from Kaohsiung to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Find flight deals from Kaohsiung to Ontario

Keep the following information in mind while searching for Kaohsiung to Ontario flight deals. Data was last updated January 29, 2026.

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kaohsiung to Ontario that are best for you.

Best time to book a flight from Kaohsiung to Ontario

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

Cheapflights Insights

Everything you need to know about your flight from Kaohsiung to Ontario

Related info for your journey

Find useful and relevant information for your journey from Kaohsiung to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ontario from Kaohsiung?

How long is the flight from Kaohsiung to Ontario?

Can I find deals for flights from Kaohsiung to Ontario that include hotel bookings?

How can I find direct flights from Kaohsiung to Ontario?

Can I find deals for business class flights from Kaohsiung to Ontario?

Browse thousands of different options on Cheapflights for your next trip

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Cheapest flights from Kaohsiung to Ontario
Explore the most affordable flight options available from Kaohsiung to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.