In terms of precipitation, rainfall in Kaohsiung ranges from 1.2 - 3.9 inches per month. September is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit Kaohsiung when rainfall is around 1.2 in.

If weather is an important factor for your trip to Kaohsiung, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

What is the cheapest month to fly from Ontario to Kaohsiung?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to Kaohsiung. Flights to Kaohsiung from Ontario in October are about $1,083 on average during October, but can be found for as low as $750.

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

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

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

Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Kaohsiung. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

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

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

How can I find direct flights from Ontario to Kaohsiung?

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

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

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

$489+ Flights from Ontario to Kaohsiung

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Cheap flight deals from Ontario to Kaohsiung

Round-trip from	$982 (United Airlines)
One-way from	$489 (United Airlines)
Popular in	June
Cheapest in	October
Average price	$1,160

From Ontario to Kaohsiung

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One-way flight from Ontario to Kaohsiung

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Highest demand for flights based on searches. 18% potential increase in price ($252 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Ontario to Kaohsiung

Cheapest flights from Ontario to Kaohsiung
Explore the most affordable flight options available from Ontario to Kaohsiung. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Fri 8/156:31 pmONT - KHH

3 stops59h 29mUnited Airlines

Fri 8/2210:25 amKHH - ONT

2 stops25h 08mUnited Airlines

Deal found 6/30

$982

Thu 8/1412:45 amONT - KHH

2 stops26h 10mMultiple Airlines

Fri 8/227:15 amKHH - ONT

2 stops26h 25mMultiple Airlines

Deal found 7/1

$1,238

Best flights from Ontario to Kaohsiung
Discover carefully curated flight deals from Ontario to Kaohsiung that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2025.

Fri 8/156:31 pmONT - KHH

3 stops59h 29mUnited Airlines

Fri 8/2210:25 amKHH - ONT

2 stops25h 08mUnited Airlines

Deal found 6/30

$982

Thu 8/1412:45 amONT - KHH

2 stops26h 10mMultiple Airlines

Fri 8/227:15 amKHH - ONT

2 stops26h 25mMultiple Airlines

Deal found 7/1

$1,238

Last-minute flights from Ontario to Kaohsiung
Discover last-minute flight deals from Ontario to Kaohsiung. Data last updated July 2, 2025 and is based on user searches.

Thu 8/1412:45 amONT - KHH

2 stops26h 10mMultiple Airlines

Fri 8/227:15 amKHH - ONT

2 stops26h 25mMultiple Airlines

Deal found 7/1

$1,238

Fri 8/156:31 pmONT - KHH

3 stops59h 29mUnited Airlines

Fri 8/2210:25 amKHH - ONT

2 stops25h 08mUnited Airlines

Deal found 6/30

$982

One-way flights from Ontario to Kaohsiung
Search for one-way flight options from Ontario to Kaohsiung. Find affordable one-way fares based on user searches. Data last updated July 2, 2025.

Thu 8/216:00 amONT - KHH

2 stops24h 00mUnited Airlines

Deal found 7/2

$489

Wed 8/2012:45 amONT - KHH

2 stops27h 15mMultiple Airlines

Deal found 7/2

$525

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioKaohsiung City

ONT - KHH

ONTKHH

Ontario

Fri 8/15

6:31 pm-9:00 pm

3 stops59h 29m

Kaohsiung City

Fri 8/22

10:25 am-8:33 pm

2 stops25h 08m

$982

OntarioKaohsiung City

ONT - KHH

ONTKHH

Ontario

Thu 8/14

12:45 am-5:55 pm

2 stops26h 10m

Kaohsiung City

Fri 8/22

7:15 am-6:40 pm

2 stops26h 25m

$1,238

OntarioKaohsiung City

ONT - KHH

ONTKHH

Ontario

Thu 8/21

6:00 am-9:00 pm

2 stops24h 00m

$489

OntarioKaohsiung City

ONT - KHH

ONTKHH

Ontario

Wed 8/20

12:45 am-7:00 pm

2 stops27h 15m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Ontario to Kaohsiung

Have a flexible travel schedule? Discover the best time to fly to Kaohsiung from Ontario 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 Ontario to Kaohsiung

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

Reviews of airlines servicing Kaohsiung

Read reviews from past customers who have flown United Airlines from Ontario to Kaohsiung. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,861 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What airport do you fly from for flights from Ontario to Kaohsiung?
Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Kaohsiung. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.
Can I find deals for flights from Ontario to Kaohsiung that include hotel bookings?
Yes. In addition to deals on Ontario to Kaohsiung flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Kaohsiung?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Kaohsiung.
Can I find deals for business class flights from Ontario to Kaohsiung?
Yes. Cheapflights offers flight deals from Ontario to Kaohsiung 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

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$489+ Cheap flights from Ontario (ONT) to Kaohsiung

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Kaohsiung with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Kaohsiung

Keep the following information in mind while searching for Ontario to Kaohsiung flight deals. Data was last updated July 2, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Kaohsiung

Cheapest flights from Ontario to KaohsiungExplore the most affordable flight options available from Ontario to Kaohsiung. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Explore the most affordable flight options available from Ontario to Kaohsiung. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Kaohsiung

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

Cheapflights Insights

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

Reviews of airlines servicing Kaohsiung

Read reviews from past customers who have flown United Airlines from Ontario to Kaohsiung. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Kaohsiung. 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 from for flights from Ontario to Kaohsiung?

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

How can I find direct flights from Ontario to Kaohsiung?

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

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.

Alternative routes for Ontario to Kaohsiung

See prices for flight routes from nearby airports that may be better suited for you.

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Book with Flexibility

Travel Smart

Cheapest flights from Ontario to Kaohsiung
Explore the most affordable flight options available from Ontario to Kaohsiung. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.