ONT - SIN

$362 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 7/22. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Singapore, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Singapore, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Ontario to Singapore (ONT-SIN)

 
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

Thu, Aug 21 - Thu, Sep 4
Korean Air Logo
6:00 am - 11:40 pmONT-SIN
26h 40m2 stops
Korean Air Logo
7:30 am - 10:42 pmSIN-ONT
30h 12m2 stops
$671Korean Air
Find Deal
Tue, Aug 19 - Tue, Aug 26
Korean Air Logo
6:00 am - 11:40 pmONT-SIN
26h 40m2 stops
Korean Air Logo
7:30 am - 5:11 pmSIN-ONT
24h 41m2 stops
$708Korean Air
Find Deal
Tue, Jul 22 - Wed, Aug 6
Korean Air Logo
6:25 am - 7:55 pmONT-SIN
46h 30m2 stops
Korean Air Logo
1:10 am - 5:16 pmSIN-ONT
31h 06m2 stops
$709Korean Air
Find Deal
Sat, Aug 2 - Sun, Aug 17
United Airlines Logo
1:19 pm - 6:15 amONT-SIN
25h 56m1 stop
United Airlines Logo
8:45 am - 5:43 pmSIN-ONT
23h 58m1 stop
$724United Airlines
Find Deal
Tue, Jul 22 - Tue, Jul 29
Delta Logo
6:25 am - 5:00 amONT-SIN
31h 35m2 stops
Delta Logo
1:10 am - 11:42 pmSIN-ONT
37h 32m2 stops
$735Delta
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Thu, Aug 14 - Sun, Aug 31
Delta Logo
6:00 am - 11:40 pmONT-SIN
26h 40m2 stops
Delta Logo
10:30 pm - 10:40 pmSIN-ONT
39h 10m2 stops
$744Delta
Find Deal
Wed, Jul 30 - Thu, Aug 21
Delta Logo
6:00 am - 5:00 amONT-SIN
32h 00m2 stops
Delta Logo
7:30 am - 10:42 pmSIN-ONT
30h 12m2 stops
$753Delta
Find Deal
Fri, Aug 22 - Fri, Oct 17
United Airlines Logo
6:50 pm - 6:15 amONT-SIN
20h 25m1 stop
United Airlines Logo
8:45 am - 5:40 pmSIN-ONT
23h 55m1 stop
$784United Airlines
Find Deal
Fri, Aug 15 - Sun, Aug 24
United Airlines Logo
6:10 am - 6:25 pmONT-SIN
21h 15m1 stop
United Airlines Logo
8:45 am - 5:29 pmSIN-ONT
23h 44m2 stops
$789United Airlines
Find Deal
Tue, Jul 22 - Tue, Jul 29
United Airlines Logo
1:19 pm - 6:25 pmONT-SIN
38h 06m1 stop
United Airlines Logo
8:45 am - 12:14 pmSIN-ONT
18h 29m1 stop
$790United Airlines
Find Deal
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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.

Which airlines provide the cheapest flights from Ontario to Singapore?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Singapore were found on Korean Air ($671) and United Airlines ($724).

Good to know

Low seasonMarch
High seasonNovember
Cheapest flight$362
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Ontario to Singapore

When to book flights from Ontario to Singapore

Are your dates flexible? Find out the best times to travel from Ontario to Singapore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Singapore

  • What is the cheapest flight from Ontario to Singapore?

    In the last 3 days, the lowest price for a flight from Ontario to Singapore was $362 for a one-way ticket and $671 for a round-trip.

  • Do I need a passport to fly between Ontario and Singapore?

    A passport is required to fly from Ontario to Singapore.

  • Which aircraft models fly most regularly from Ontario to Singapore?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Singapore?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Ontario and Singapore, with SkyTeam being the most commonly used for this route.

  • 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 to Singapore from 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 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 to Singapore with an airline and back to Ontario with another airline. Booking your flights between Ontario and SIN can sometimes prove cheaper using this method.

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

Reviews of the top airlines flying from Ontario to Singapore

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Singapore. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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 744 reviews
8.0Entertainment
8.5Crew
8.0Comfort
7.8Food
8.3Boarding
Airline reviews

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!

2.0 Mediocrelinzy, Jun 2025TPE - CGK
Read more China Airlines reviews

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!

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

They need to improve on how the plane lands cause it was not smooth at all.

I did not like how the plane landed. It was not smooth.

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. :)

Most relaxing long distance flight I have been on. And I have flown on many.

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!

Very routh cabin crew food is only 2 meals for 13 hours fry with them They should get better training how to service good super routh language and talking with customer

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!

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

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

Information on your arrival and departure airports

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