$379 Find Cheap Flights from Ontario to Asia - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Asia departing on 7/29. 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

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Cheap Flights from Ontario to Asia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Tokyo
Tokyo1 stop$893
New Delhi
New Delhi3 stops$1,010
Bangkok
Bangkok2 stops$827
Mumbai
Mumbai2 stops$1,086
Manila
Manila1 stop$1,100
Hyderabad
Hyderabad2 stops$1,169
Hong Kong
Hong Kong1 stop$1,045
Ahmedabad
Ahmedabad2 stops$1,326
Singapore
Singapore2 stops$755
Seoul
Incheon1 stop$956
Shanghai
Shanghai2 stops$947
Chennai
Chennai2 stops$1,180
Denpasar
Denpasar2 stops$1,023
Tokyo
Tokyo1 stop$893
New Delhi
New Delhi3 stops$1,010
Bangkok
Bangkok2 stops$827
Mumbai
Mumbai2 stops$1,086
Manila
Manila1 stop$1,100
Hyderabad
Hyderabad2 stops$1,169
Hong Kong
Hong Kong1 stop$1,045
Ahmedabad
Ahmedabad2 stops$1,326
Singapore
Singapore2 stops$755
Seoul
Incheon1 stop$956
Shanghai
Shanghai2 stops$947
Chennai
Chennai2 stops$1,180
Denpasar
Denpasar2 stops$1,023

Book Cheap Ontario to Asia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Asia 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 Ontario to Asia

Wed, Oct 28 - Tue, Nov 3
Korean Air Logo
7:00 am - 12:10 am
ONT
-
SIN
26h 10m
2 stops
Korean Air Logo
1:35 am - 5:17 pm
SIN
-
ONT
31h 42m
2 stops
$755Korean Air
Sat, Oct 31 - Tue, Nov 10
Korean Air Logo
6:20 am - 11:20 pm
ONT
-
BKK
27h 00m
2 stops
Korean Air Logo
11:15 pm - 5:17 pm
BKK
-
ONT
33h 02m
2 stops
$827Korean Air
Sat, Oct 31 - Tue, Nov 10
Korean Air Logo
7:00 am - 9:30 pm
ONT
-
BKK
24h 30m
2 stops
Korean Air Logo
9:30 pm - 5:17 pm
BKK
-
ONT
34h 47m
2 stops
$830Korean Air
Thu, Aug 20 - Wed, Aug 26
Delta Logo
6:20 am - 7:15 pm
ONT
-
SIN
45h 55m
2 stops
Delta Logo
1:25 am - 11:34 pm
SIN
-
ONT
37h 09m
2 stops
$834Delta
Mon, Oct 5 - Mon, Nov 2
Delta Logo
6:20 am - 9:45 pm
ONT
-
BKK
25h 25m
2 stops
Delta Logo
9:40 am - 4:12 pm
BKK
-
ONT
21h 32m
2 stops
$838Delta
Thu, Aug 20 - Thu, Sep 17
United Airlines Logo
6:08 am - 6:35 pm
ONT
-
SIN
21h 27m
1 stop
United Airlines Logo
8:45 am - 6:11 pm
SIN
-
ONT
24h 26m
1 stop
$873United Airlines
Thu, Aug 20 - Thu, Aug 27
United Airlines Logo
6:08 am - 6:35 pm
ONT
-
SIN
21h 27m
1 stop
United Airlines Logo
8:35 pm - 8:53 pm
SIN
-
ONT
39h 18m
2 stops
$877United Airlines
Fri, Oct 2 - Sat, Oct 17
China Airlines Logo
12:10 am - 5:15 am
ONT
-
TPE
14h 05mnonstop
China Airlines Logo
9:10 pm - 6:00 pm
TPE
-
ONT
11h 50mnonstop
$896China Airlines
Fri, Oct 9 - Fri, Oct 30
China Airlines Logo
12:10 am - 5:15 am
ONT
-
TPE
14h 05mnonstop
China Airlines Logo
9:25 pm - 5:50 pm
TPE
-
ONT
11h 25mnonstop
$897China Airlines
Sun, Nov 1 - Tue, Nov 17
American Airlines Logo
11:59 pm - 4:25 pm
ONT
-
ICN
23h 26m
1 stop
American Airlines Logo
6:35 pm - 10:23 pm
ICN
-
ONT
20h 48m
1 stop
$1,048American Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Asia flights

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

What is the cheapest Ontario to Asia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Asia from Ontario found in the last 5 days was to Taipei City, at $915 round-trip. The most popular route is from Ontario (ONT) to Taipei City Taiwan Taoyuan Intl Airport (TPE), and the cheapest round-trip airline ticket found on this route in the last 5 days was $915.

Can I save money by flying with a layover from Ontario to Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,020, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Asia, 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 from Ontario to Asia is January, when tickets cost $715 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,452 and $1,299 respectively.

Good to know

Low seasonSeptember
Cheapest flight$379
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Ontario to Seoul Incheon Airport

FAQs - booking Asia flights

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

    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 from Ontario to Asia.

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

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

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

    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 from Ontario to Asia 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 from Ontario to Asia?

    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 from Ontario to Asia 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 Asia

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Taipei City $566 one-way - $998 round-trip

Reviews of the top 5 airlines serving from Ontario to Asia

 
Need help choosing which airline to fly with from Ontario to Asia? 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 350 reviews
8.7Food
9.2Crew
8.8Entertainment
8.9Boarding
8.9Comfort
Airline reviews

Hostesses were very nice I am disappointed that I paid extra 900$for premium economy which wasn't much upgraded from regular economy, I have wasted my money on this trip 😫

6.0 GoodAnonymous, May 2026
ONT - TPE
Read more STARLUX Airlines reviews

Hostesses were very nice I am disappointed that I paid extra 900$for premium economy which wasn't much upgraded from regular economy, I have wasted my money on this trip 😫

love this boutique luxury airline. crew was nice and attentive. Lounge is too small , i think they should have more area for relaxing and lounging not just to sit and eat .. feels like a cafeteria more than a lounge. overall i enjoy it. food on the plane LAX to Teipei should inprove a bit. no flavor and more drinks pls

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

My luggage was forced open and broke the zipper. I received it in a huge STARLUX plastic bag. Unfortunately, I have a round trip ticket but might be my first and last with this airline

Flight cancelled due to inclement weather yet rival airline EVA Air with the same route departed 2 hours later and landed safely while our flight was cancelled and rescheduled for 36 hours later.

The crew could have been kinder and less pushy. The premium economy seats don't have enough cushion. The seats are to hard and the flight became painful and uncomfortable after an hour of flying.

Our transit in Taipei was disappointing. The ground crew could not tell us where the lounge was located, so we wasted 15 minutes trying to find it. The airline has a great review, but our experience says otherwise.

I thought all the while when I booked my flight I am entitled to check- in 2 luggages of 23 Kg each only to find out that the ticket I purchased online entitle me for only one luggage. I have been traveling for over 20 years and this is the first experience to such… so frustrating.

I was pleasantly happy with this airline, which is new to me. The crew was attentive and the seats felt better than most other economy. There was plenty of bin space. Glad I got to pick the seat I had(based on distance from baby image on seat map).

The plane is very clean. The selection of movies is excellent!

AAAAHHHH... It was shocking in a very positive way, the attention to detail, the courtesy, the manners of all personnel on board, the constant honest smiling. You can see and feel they take pride in all they do no matter how trivial. The plane in general was very comfortable. I can't wait to do it again

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

long flights are difficult but the crew and amenities made it a very good experience

Good. Obviously there is a slightly condescending attitude of all American workers towards their customers but other than that all good.

They destroyed my Michael Kors Carryon luggage, they didn’t announce that only check in the carry on and when we get inside a couple of room to put the carry on bag. I was disappointed and sad because of the damaged of my luggage. They should replace it or fixed it.

Flight attendants. Food, entertainment and most of all, be on time.

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

Better organization of boarding procedures. Terrible leadership guiding people to gates.

I did not take the flight, tried to cancel it right after I booked it, but was unable to reach anyone. I blame Kayak for this situation because they sent the booking through another company and I was unable to get anyone to talk to me about the situation. I had to just take the hit and pay for another flight through Cathay Pacific, which was wonderful. I will never use Kayak again. (I bet they don’t post this review!) I’ll just post about them on social media sites. I don’t want anyone to have to go through the hassle and expense I dealt with.

Unable to set seat assignment. Got a call from presumably “China airlines representative” but was asking for an exorbitant amount for the seat assignment. Was traveling as a family end up being assigned to different seats as a result. Will never use underpricer again.

Not many selections for entertainment. Bulk head seats are no longer available with out fee at the counter. That’s pretty lame.

I would have liked to know how to order a special meal (for medical purposes) before the flight.

Ask flight attendant for water during flight and she was a little rude get the water.

For a long-haul flight, the crew did a very good job of keeping the lavatories clean and the aisles clear.

The check-in crew at SF did not put on breakable glass stickers on check-in baggages which caused my antique whisky bottle to break during transportation.

It was as good as it could be. Flying is not a pleasant experience these days.

Very good flight. Crew was great. No issues and we even arrived early.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Flight delayed four separate times. I’m now one hour hours late to landing.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

The flight was overbooked and the staff at the gate started calling for volunteers to drop out and offering incentives. That delayed the flight

There was no wifi even after my husband paid for wifi it wasn’t working. The plane looked and felt old.

Update the cabin with tv screens or at least music sources.

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

No extra snacks were available. Meals quality is terrible. Crew was not friendly.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

The boarding process on the departure from LA was rather slow even though I was in Group 1. For first class, I was not expecting to have to pay for Wi-fi but I did and then the wi-fi was spotty. The entree was surprisingly good and so that was a pleasant surprise. However, once I got to Houston, it was terrible. Unfortunately there was bad weather but the constant gate changes for my connecting flight was difficult to manage due to having to navigate back and forth between different terminals.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Service was professional and quick. Premium economy seat was comfortable given the class

It was perfect! United Airlines staff was extremely caring, super friendly and professional

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Everything you need to know for your flight to Asia

Information on your arrival and departure airports