$375 Find Cheap Flights from Ontario to Singapore

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 Singapore departing on 7/21. 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

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

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Best Singapore Flight Deals from Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Singapore
Singapore2 stops$738
Singapore
Singapore2 stops$738

Cheap Flights from Ontario to Singapore (ONT-SG0)

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

Wed, Jul 23 - Thu, Aug 7
Korean Air Logo
6:25 am - 11:40 pmONT-SIN
26h 15m2 stops
Korean Air Logo
7:30 am - 5:16 pmSIN-ONT
24h 46m2 stops
$738Korean Air
Find Deal
Tue, Jul 22 - Thu, Aug 7
Korean Air Logo
6:25 am - 11:40 pmONT-SIN
26h 15m2 stops
Korean Air Logo
7:30 am - 5:16 pmSIN-ONT
24h 46m2 stops
$739Korean Air
Find Deal
Wed, Oct 29 - Tue, Nov 11
Delta Logo
6:45 am - 12:10 amONT-SIN
26h 25m2 stops
Delta Logo
11:00 am - 5:17 pmSIN-ONT
22h 17m2 stops
$804Delta
Find Deal
Wed, Oct 29 - Sun, Nov 9
Delta Logo
6:45 am - 12:10 amONT-SIN
26h 25m2 stops
Delta Logo
11:00 am - 5:17 pmSIN-ONT
22h 17m2 stops
$815Delta
Find Deal
Thu, Jul 31 - Thu, Oct 16
United Airlines Logo
1:19 pm - 6:40 amONT-SIN
50h 21m2 stops
United Airlines Logo
8:45 am - 5:32 pmSIN-ONT
23h 47m1 stop
$921United Airlines
Find Deal
Mon, Oct 20 - Sat, Oct 25
United Airlines Logo
1:35 pm - 6:15 amONT-SIN
25h 40m1 stop
United Airlines Logo
8:45 am - 8:33 pmSIN-ONT
26h 48m2 stops
$956United Airlines
Find Deal
Wed, Aug 13 - Sat, Aug 23
STARLUX Airlines Logo
11:45 pm - 12:40 pmONT-SIN
21h 55m1 stop
STARLUX Airlines Logo
2:00 pm - 5:40 pmSIN-ONT
18h 40m1 stop
$979STARLUX Airlines
Find Deal
Tue, Aug 12 - Sun, Sep 14
China Airlines Logo
12:45 am - 12:35 pmONT-SIN
20h 50m1 stop
China Airlines Logo
2:00 am - 6:40 pmSIN-ONT
31h 40m1 stop
$1,026China Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19
China Airlines Logo
12:10 am - 12:35 pmONT-SIN
21h 25m1 stop
China Airlines Logo
2:00 am - 6:00 pmSIN-ONT
31h 00m1 stop
$1,027China Airlines
Find Deal
Fri, Jul 4 - Mon, Jul 21
STARLUX Airlines Logo
11:45 pm - 12:40 pmONT-SIN
21h 55m1 stop
STARLUX Airlines Logo
2:00 pm - 5:40 pmSIN-ONT
18h 40m1 stop
$1,106STARLUX Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Ontario to Singapore flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Singapore, 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 Singapore is March, when tickets cost $892 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of round-trip tickets is $1,564 and $1,507 respectively.


Good to know

Low seasonMay
High seasonNovember
Cheapest flight$375
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Ontario to Singapore

FAQs - booking Singapore flights

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

    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 Singapore.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Singapore 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 Singapore?

    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 Singapore 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 Singapore?

    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 Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Singapore?

    The cheapest time of day to fly to Singapore is generally in the morning, when round-trip flights cost $1,057 on average. Morning departures are around 21% cheaper than evening flights, on average. The most expensive time of day to fly to Singapore is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,371.

Top airlines flying from Ontario to Singapore

Need help choosing which airline to fly with from Ontario to Singapore? 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.
8.3
China AirlinesOverall score based on 733 reviews
8.3Boarding
8.5Crew
7.8Food
8.0Entertainment
8.0Comfort
Airline reviews

China Airlines crews are very excellent doing their job. Very friendly and hardworking. I will always choose China Airlines over and over. Thank you all for making my flight comfortable. God bless to all the staff. :)

10.0 ExcellentAnonymous, May 2025SEA - TPE
Read more China Airlines reviews

China Airlines crews are very excellent doing their job. Very friendly and hardworking. I will always choose China Airlines over and over. Thank you all for making my flight comfortable. God bless to all the staff. :)

Staff was so nice and very helpful with directions aswell!

It was our first time flying with China Airlines and had a very nice experience. The airline staff & crews both on the ground and air were very nice. Food on the plane was very good. Will recommend it to family and friends.

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

My ticket did not indication which group I was in for boarding; the gate attended help me

I would like to commend the staff from this flight. They all looked happy and I can tell they love what they are doing and constantly smiling while serving the passengers. Special mention to the guy FA in our section. I did not get his name but he is so far the best F.A I have ever encountered!

staff are super nice and effiecient! It was a very comfortable and relaxing flight

When I booked a premium economy ticket. I then had to pay $100+ to book my seat.

Boarding could have been a little bit better but other than that it was a pretty good experience. I think because of the stowaway to Paris France recently they are being extra diligent about boarding passes at the gate. But they boarded the back of the plane first, and that's something I really think needs to start in the USA.

Didn't like on this return inbound flights (from Hong Kong to Vancouver) Outbound to the Hong Kong was good.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

The first flight was better in terms of the aircraft.

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Everything you need to know for your flight from Ontario to Singapore

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.