$451 Find Cheap Flights from Taiwan to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Taiwan to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Taiwan to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Taiwan to Ontario

Sun, Aug 23 - Sun, Aug 30
China Airlines Logo
9:10 pm - 6:40 pm
TPE
-
ONT
12h 30mnonstop
China Airlines Logo
12:45 am - 5:05 am
ONT
-
TPE
13h 20mnonstop
$702China Airlines
Mon, Aug 24 - Thu, Sep 10
China Airlines Logo
9:10 pm - 6:40 pm
TPE
-
ONT
12h 30mnonstop
China Airlines Logo
12:45 am - 5:05 am
ONT
-
TPE
13h 20mnonstop
$703China Airlines
Tue, Jun 16 - Tue, Jul 21
Korean Air Logo
6:55 pm - 5:16 pm
TPE
-
ONT
37h 21m
2 stops
Korean Air Logo
7:00 am - 12:10 pm
ONT
-
TPE
38h 10m
2 stops
$710Korean Air
Wed, Jun 17 - Wed, Jul 22
Korean Air Logo
6:55 pm - 5:16 pm
TPE
-
ONT
37h 21m
2 stops
Korean Air Logo
7:00 am - 12:10 pm
ONT
-
TPE
38h 10m
2 stops
$712Korean Air
Fri, Sep 4 - Tue, Sep 8
United Airlines Logo
9:55 am - 6:11 pm
KHH
-
ONT
23h 16m
2 stops
United Airlines Logo
8:00 am - 9:00 pm
ONT
-
KHH
22h 00m
2 stops
$780United Airlines
Fri, Sep 4 - Tue, Sep 8
United Airlines Logo
9:55 am - 12:38 pm
KHH
-
ONT
41h 43m
3 stops
United Airlines Logo
5:00 am - 9:00 pm
ONT
-
KHH
49h 00m
3 stops
$782United Airlines
Wed, Jun 10 - Tue, Jun 16
Multiple Airlines Logo
10:15 am - 6:00 pm
KHH
-
ONT
22h 45m
2 stops
Multiple Airlines Logo
12:10 am - 2:15 pm
ONT
-
KHH
23h 05m
2 stops
$1,030Multiple Airlines
Sun, Jun 21 - Sun, Jul 12
Japan Airlines Logo
2:20 pm - 4:44 pm
TSA
-
ONT
41h 24m
2 stops
Japan Airlines Logo
6:00 am - 11:15 am
ONT
-
TSA
38h 15m
2 stops
$1,510Japan Airlines
Wed, Aug 12 - Mon, Aug 24
Multiple Airlines Logo
2:20 pm - 1:41 pm
TSA
-
ONT
38h 21m
2 stops
Multiple Airlines Logo
11:59 pm - 11:15 am
ONT
-
TSA
44h 16m
2 stops
$1,645Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Japan Airlines Logo
2:20 pm - 6:13 pm
TSA
-
ONT
42h 53m
2 stops
Japan Airlines Logo
6:00 am - 11:15 am
ONT
-
TSA
38h 15m
2 stops
$1,844Japan Airlines
Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends for flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Ontario?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Ontario was found on the route from Taipei City, at $702 return. The most popular connection is from Dallas to Ontario and KAYAK users have found round-trip deals for as low as $150 in the last 3 days.

What is the cheapest day to fly to Ontario?

The average price of all round-trip flights to Ontario clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Ontario is Thursday where round-trip tickets can be as cheap as $769. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $978 on average.

What is the cheapest month to fly to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Ontario is May, where tickets cost $747 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Taiwan is $1,234 and $1,137 respectively. For one-way flights, the best month to travel is May with an average price of $747.

What is the cheapest time of day to fly to Ontario?

The average price for all round-trip flights to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally at night, when round-trip flights cost $892 on average. The most expensive time of day to fly to Ontario is generally at night, which is peak travel time and where the average cost of a ticket is $892.

What is a good deal for flights to Ontario?

If you’re looking for cheap airfare to Ontario, 25% of our users found tickets to Ontario for the following prices or less: From Taipei City Taiwan Taoyuan Intl Airport $985 round-trip.

How far in advance should I book a flight to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$451
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Taipei City to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 3 days, the cheapest flight deal to Ontario was found on the route from Taipei City, at $702 return. The most popular connection is from Dallas to Ontario and KAYAK users have found round-trip deals for as low as $150 in the last 3 days.

  • How far is Ontario Airport from central Ontario?

    There are 3 miles between Ontario city center and Ontario Airport.

  • What is the name of Ontario’s airport?

    Ontario is served by Ontario Airport, also commonly referred to as Ontario or Ontario Intl. The airport code is ONT.

  • How much is a flight to Ontario?

    On average, a flight to Ontario costs $840. The cheapest price found on KAYAK in the last 2 weeks cost $445 and departed from Taipei City Taiwan Taoyuan Intl Airport.

  • How does KAYAK find such low prices on flights to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Ontario

  • Looking for cheap airfare to Ontario? 25% of our users found round-trip tickets to Ontario for the following prices or less: From Taipei City Taiwan Taoyuan Intl $1,078
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Reviews of the top 3 airlines serving from Taiwan to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Taiwan to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.9
STARLUX AirlinesOverall score based on 285 reviews
9.2Crew
8.7Food
8.8Entertainment
9.0Boarding
8.9Comfort
Airline reviews

Got dinner and breakfast! They had mahjong game in entertainment system. Current movies. Loved the slippers, sleeping mask packet. Great experience for a long flight

10.0 ExcellentAnonymous, Mar 2026
TPE - LAX
Read more STARLUX Airlines reviews

Got dinner and breakfast! They had mahjong game in entertainment system. Current movies. Loved the slippers, sleeping mask packet. Great experience for a long flight

Leg room was great. Friendly crew. Food is great. Crew always kept the toilet clean.

Business Class is exceptional, from the lie flat seats to the wide range of food on board. Can’t wait for our next journey with Starlux!

Th tray was dirty when pulled it out. Still oily and food stains can clearly see last trip cleaner did not clean well. The toilet sink water did not drain quickly enough.

Majority of the movie entertainment loaded in the aircraft were quite old.

Crew is very attentive. Another new airbus 350-900 plane. Very modern.

Passengers were confused and freaking out coz the flight information wasn’t showing on the board that was running with all the departing flights. B9 gate was still showing Cathay Pacific bound for HK 15:50 was on until 22:07. STARLUX staff cameater but didn’t let the passengers go in to pre departure area until 22:45 for the 23:30 boarding time

The aircraft is fairly new. The screen is big and it's great to enjoy movies on a long haul flight. However, the food quality , and drink and snack selections, have room for improvement.

Preboarding food selection is an excellent idea. On the other end I did know the choice. People in my area know the choice. It ends with I got my meal till most of them are half way to finish their meal.

Overall it’s good . However the food quality can be improved .

The crew are amazing. Very professional, polite, kind, and accommodating.

Very bad. They don’t allow group people to sit together by blocking most of seats and opening only single seat during online checking in. . By doing so, they can rip off customers at the check-in counter by collecting extra money if we want to sit together in the same row.

Hour late but understandable under the conditions. Taoyuan airport could have clearer signs language wise and more staff to help direct people.

Delayed. Not a full flight and whole rows left open with the paid seating. Food was ok. My beef meal only had one cube of beef the rest carrot cubes. Entertainment on personal device but didn’t know about it until the flight was almost done.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Overall was a lovely experience. The crew were kind and courteous throughout the entire flight.

Sat next to a woman who had her period. Blood was on her seat and on the arm rest between us. I ended up having period blood on my jacket and shoes. Very gross!

It was amazing. I had several upgraded seats on my flight out. Everything went smooth with no delays.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Flight attendants were friendly & good service, food sucks, seats uncomfortable, not many Asian movies or shows flying from Hong Kong

Flight attendants had a little attitude. Food tastes no good.

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario