$501 Cheap Flights from Taipei (TPE) to Ontario (ONT)

View $501 flight on Thu, May 15, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Taipei to Ontario (TPE-ONT)

Prices were available within the past 7 days and start at $501 for one-way flights and $695 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 10 - Mon, Nov 24
TPE
Taipei
ONT
Ontario
$695 Roundtrip, found 4 days ago
$695
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 10 from Taipei to Ontario, returning Mon, Nov 24, priced at $695 found 4 days ago
United
Thu, May 1 - Wed, Oct 22
TPE
Taipei
ONT
Ontario
$696 Roundtrip, found 2 hours ago
$696
Roundtrip
found 2 hours ago
Select United flight, departing Thu, May 1 from Taipei to Ontario, returning Wed, Oct 22, priced at $696 found 2 hours ago
United
Wed, Oct 8 - Wed, Oct 29
TPE
Taipei
ONT
Ontario
$697 Roundtrip, found 3 days ago
$697
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 8 from Taipei to Ontario, returning Wed, Oct 29, priced at $697 found 3 days ago
United
Thu, May 1 - Wed, Oct 22
TPE
Taipei
ONT
Ontario
$703 Roundtrip, found 2 hours ago
$703
Roundtrip
found 2 hours ago
Select United flight, departing Thu, May 1 from Taipei to Ontario, returning Wed, Oct 22, priced at $703 found 2 hours ago
United
Thu, May 1 - Wed, Oct 22
TPE
Taipei
ONT
Ontario
$709 Roundtrip, found 2 hours ago
$709
Roundtrip
found 2 hours ago
Select United flight, departing Thu, May 1 from Taipei to Ontario, returning Wed, Oct 22, priced at $709 found 2 hours ago
United
Sun, Oct 5 - Sun, Oct 12
TPE
Taipei
ONT
Ontario
$715 Roundtrip, found 6 days ago
$715
Roundtrip
found 6 days ago
Select United flight, departing Sun, Oct 5 from Taipei to Ontario, returning Sun, Oct 12, priced at $715 found 6 days ago
All Nippon Airways
Mon, Sep 22 - Mon, Sep 29
TSA
Taipei
ONT
Ontario
$878 Roundtrip, found 1 day ago
$878
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Mon, Sep 22 from Taipei to Ontario, returning Mon, Sep 29, priced at $878 found 1 day ago
STARLUX Airlines
Mon, Sep 22 - Mon, Sep 29
TPE
Taipei
ONT
Ontario
$916 Roundtrip, found 1 day ago
$916
Roundtrip
found 1 day ago
Select STARLUX Airlines flight, departing Mon, Sep 22 from Taipei to Ontario, returning Mon, Sep 29, priced at $916 found 1 day ago
China Airlines
Tue, Sep 2 - Fri, Sep 19
TPE
Taipei
ONT
Ontario
$986 Roundtrip, found 4 days ago
$986
Roundtrip
found 4 days ago
Select China Airlines flight, departing Tue, Sep 2 from Taipei to Ontario, returning Fri, Sep 19, priced at $986 found 4 days ago
Japan Airlines
Sun, May 4 - Thu, Jun 5
TPE
Taipei
ONT
Ontario
$1,118 Roundtrip, found 1 day ago
$1,118
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Sun, May 4 from Taipei to Ontario, returning Thu, Jun 5, priced at $1,118 found 1 day ago
Flights from Taipei (TPE) to Ontario (ONT)
Origin airport
Taoyuan Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, China Airlines, Delta, Japan Airlines, Korean Air, STARLUX Airlines, United
Roundtrip price
$695
Distance
6817 mi

Taipei to Ontario Flights

The cheapest times to fly from Taipei to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Taipei to Ontario are during the month of November. You can find some of the cheapest flights from Taipei to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Taipei to Ontario

Sunday is one of the best days to book for cheap flights from Taipei to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Taipei to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Taipei to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $501 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Taipei to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Taipei to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Cheap return flights from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT) start from $929. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a China Airlines flight leaving TPE on May 7 2025 and touching down at ONT. The price was last updated on April 26 2025 and has not changed since.
What is the cheapest month to fly from TPE to ONT?
The cheapest flights from TPE to ONT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT)?
You can fly nonstop from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT) on a China Airlines flight.
What is the cheapest airline that flies from TPE to ONT?
With fares starting at $590 for a one-way flight from TPE to ONT, Starlux Airlines is currently the cheapest carrier flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from TPE on June 4 2025. Prices were last updated on April 26 2025 and have not changed since.
How many flights per day from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT)?
On average, you’ll only find 1 direct flight taking off from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT) per day. If this doesn’t fit your travel plans, check out flights with layovers. Just customize your search on Expedia to include one or more stops to find the next best option.
What are the most popular departure times for flights from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT)?
The 9 PM departures from TPE to ONT are the most sought after. Greater demand means you’ll likely pay more for these departures. If you want to save on your fare, choose a less crowded time to fly.
What day of the week has the most flights from TPE to ONT?
If you depart on a Friday, you’ll get the largest range of choices for flights from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT).
What is the earliest flight from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT)?
The earliest flight taking off from Taoyuan Intl. Airport (TPE) is at around 9:25PM UTC+8. Board this flight and you’ll land at Los Angeles - Ontario Intl. Airport (ONT) at approximately 4:50PM UTC-8. The overall travel time is 11h 25m.
How long does it take to fly from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT)?
Flights from TPE to ONT have an average travel time of 11 hours and 25 minutes. The total distance between these two airports is 6,800 mi.
What is the best time to fly from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT)?
To avoid potential delays on the Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Ontario from Taoyuan Intl. Airport (TPE)?
You can land at Los Angeles Intl. Airport (LAX) or Los Angeles - Ontario Intl. Airport (ONT) when you travel to Ontario on a direct flight from Taoyuan Intl. Airport (TPE).
Is it cheaper to buy a plane ticket from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute fares from TPE to ONT are generally more expensive. For the best rates, start looking for flights as soon as possible. That being said, if you’re flexible with your travel plans, you may find a cheap ticket right before you leave.
Is it cheaper to book a TPE to ONT flight and hotel package?
Opting for a TPE to ONT flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Taoyuan Intl. Airport (TPE) to Los Angeles - Ontario Intl. Airport (ONT)?
If you booked your TPE to ONT flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.