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Cheap flights from Taipei Taiwan Taoyuan to Ontario International

Compare Taipei Taiwan Taoyuan to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

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Flight deals from Taipei Taiwan Taoyuan Airport to Ontario International Airport

Looking for a cheap last-minute deal or the best round-trip flight from Taipei Taiwan Taoyuan Airport to Ontario International Airport? If you want to travel next month, round-trip fares start from $729. Find the lowest prices on one-way and round-trip tickets right here.
Ontario.$728 per passenger.Departing Wed, Mar 18, returning Mon, Sep 14.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Wed, Mar 18, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Mon, Sep 14, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $728, select.
Ontario.$729 per passenger.Departing Fri, Mar 6, returning Mon, May 18.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Fri, Mar 6, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Mon, May 18, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.
Ontario.$729 per passenger.Departing Mon, Jun 1, returning Thu, Nov 26.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Mon, Jun 1, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Thu, Nov 26, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.
Ontario.$729 per passenger.Departing Wed, Jun 17, returning Wed, Aug 26.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Wed, Jun 17, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Wed, Aug 26, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.
Ontario.$729 per passenger.Departing Wed, Apr 8, returning Fri, Apr 17.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Wed, Apr 8, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Fri, Apr 17, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.
Ontario.$729 per passenger.Departing Tue, Mar 10, returning Sat, Mar 21.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Tue, Mar 10, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Sat, Mar 21, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.
Ontario.$729 per passenger.Departing Tue, Jun 16, returning Thu, Jul 2.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Tue, Jun 16, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Thu, Jul 2, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.
Ontario.$729 per passenger.Departing Fri, Apr 24, returning Fri, May 1.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Fri, Apr 24, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Fri, May 1, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.
Ontario.$729 per passenger.Departing Wed, Mar 18, returning Mon, Apr 6.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Wed, Mar 18, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Mon, Apr 6, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.
Ontario.$729 per passenger.Departing Wed, Feb 4, returning Sun, Feb 15.Round-trip flight with China Airlines.Outbound direct flight with China Airlines departing from Taipei Taiwan Taoyuan on Wed, Feb 4, arriving in Ontario International.Inbound direct flight with China Airlines departing from Ontario International on Sun, Feb 15, arriving in Taipei Taiwan Taoyuan.Price includes taxes and charges.From $729, select.

Find the cheapest month to fly from Taipei Taiwan Taoyuan to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Taipei Taiwan Taoyuan to Ontario International flights are currently cheapest in February.
Jan
from $803
Feb
from $729
Mar
from $729
Apr
from $729
May
from $729
Jun
from $761
Jul
from $1,172
Aug
from $790
Sep
from $764
Oct
from $761
Nov
from $771
Dec
from $790

Direct flights from Taipei Taiwan Taoyuan to Ontario International

Taipei Taiwan Taoyuan to Ontario International: Alternative routes

Compare routes from Taipei Taiwan Taoyuan to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Ontario International

4km from central Ontario
Closest
from $724
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San Bernardino Norton AFB

39km from central Ontario
from $1,163
Search flights

Santa Ana John Wayne

48km from central Ontario
from $768
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Long Beach Municipal

54km from central Ontario
from $835
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Hawthorne

65km from central Ontario
from $1,487
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Burbank

67km from central Ontario
from $764
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Los Angeles International

71km from central Ontario
Cheapest
from $489
Search flights

Taipei to Ontario: Flight information

The things to know before you go.
Cheapest flight found$728
Cheapest month to flyMarch
Average flight time11 hrs, 45 mins
Most popular airlineChina Airlines
Average flights per week12

Finding cheap flights from Taipei Taiwan Taoyuan to Ontario International: Frequently asked questions

The best price we found for a round-trip flight from Taipei Taiwan Taoyuan to Ontario International is $728. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
11 hours and 45 minutes is the average flight time from Taipei Taiwan Taoyuan to Ontario International.
China Airlines and STARLUX Airlines fly direct from Taipei Taiwan Taoyuan to Ontario International.
There are 12 flights per week flying from Taipei Taiwan Taoyuan to Ontario International, as of January 2026.
The cheapest month to fly from Taipei Taiwan Taoyuan to Ontario International is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Taipei Taiwan Taoyuan Airport to Ontario International Airport on Wednesday, March 18, 2026.
Yes – the average flight time is 11 hours and 45 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, China Airlines offers the cheapest flight tickets to Ontario International.

Flying from Taiwan Taoyuan International Airport (TPE) to Ontario International Airport (ONT): what you need to know

  • Around 12 hours 5 minutes is how long you'll be traveling on a direct flight from Taiwan Taoyuan International Airport to Ontario International Airport.

  • Ontario is 15 hours behind Taipei and is in the UTC-7 timezone.

  • Take your pick of eight weekly Taiwan Taoyuan International Airport to Ontario International Airport flights. The 21:10 departure with China Airlines is the earliest available. China Airlines operates the latest service of the day at 21:10.

  • Give yourself plenty of time to make your TPE to ONT flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • You can expect bigger queues during popular months like August. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a good idea.

  • China Airlines has direct flights from Taiwan Taoyuan International Airport to Ontario International Airport. Book with this popular airline, then get ready to check out the sights in Ontario — and maybe even more of United States if time allows.

  • The majority of travelers choose to fly with China Airlines on this route.

  • Among carriers operating TPE to ONT flights, China Airlines has the best record for on-time arrivals.

How to find the cheapest flights from Taiwan Taoyuan International Airport (TPE) to Ontario International Airport (ONT)

  • The cheapest price we've found for a one-way Taiwan Taoyuan International Airport to Ontario International Airport flight is $462. A round-trip ticket right now is $724. Depending on the availability and when you book, these fares could change.

  • Book six months before traveling. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap tickets from TPE to ONT.

  • May is the cheapest month for flights from Taiwan Taoyuan International Airport to Ontario International Airport. If you prefer to travel during a different time of year, the 'Whole month' tool will show you the lowest prices across every month.

  • Landing cheap flights from TPE to ONT is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you when a lower fare pops up.

  • Find the right flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Taiwan Taoyuan International Airport to Ontario International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and number of stops.

Handy information about Taiwan Taoyuan International Airport (TPE)

  • Of the departures from Taiwan Taoyuan International Airport, 74.72% land on schedule at their destination.

  • Central Taipei to Taiwan Taoyuan International Airport is approximately 48 kilometers. Depending on traffic, it'll take about 40 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Planning to take public transport? Expect a trip time of around 1 hour 25 minutes.

  • Get your break off to a hassle-free start by staying near TPE. Whether you're catching an early flight from Taiwan Taoyuan International Airport to Ontario International Airport or want to avoid feeling rushed, these hotels are perfect:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • You'll find ONT at 2900 E. Airport Drive.

  • Ontario International Airport to the center of Ontario has a drive time of about 10 minutes. It's approximately 6 kilometers away.

  • When traveling on public transport, expect a journey time of roughly 1 hour 30 minutes.

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from Taiwan Taoyuan International Airport to Ontario International Airport is May, while August is the busiest. Choose the ideal time to visit Ontario based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Ontario is August, with temperatures ranging between 15ºC (59ºF) and 35ºC (95ºF). Lock in your flights from Taiwan Taoyuan International Airport to Ontario International Airport in this month if you enjoy this type of weather.

  • Search for cheap tickets from TPE to ONT in January if you like traveling in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 23ºC (73ºF) on average.

Explore more of United States

  • You've seen Ontario, now it's time to discover more of United States. Travel around 56 kilometers west to Los Angeles to tick off its popular sights. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, you've got a jam-packed schedule ahead.

  • Around 153 kilometers south of Ontario, San Diego is another favorite stop in United States. No visit is complete without checking out San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

More travel options

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.