Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Ontario to Singapore from $547

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 10/9. 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
0 bags
Sat 6/8
Sat 6/15

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

In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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

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

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

Best Singapore Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Singapore
Singapore1 stop$923

Good to know

Low season

July

High season

May

Cheapest flight

$547
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly with an average 1% increase in price.
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 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.

  • 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.

See more FAQs

Top tips for finding cheap flights to Singapore

  • Morning departure is around 8% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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.
8.2
China AirlinesOverall score based on 920 reviews
8.6Crew
8.1Entertainment
8.0Comfort
8.3Boarding
7.8Food
Airline reviews

Decent flight, staff was very good, especially with the turbulence during the flight due to weather. Comfort was about par with other airlines but since it was a quick flight, was not much of an issue for us.

10.0 ExcellentMichell, Feb 2024MNL - TPE
Read more about China Airlines reviews

Decent flight, staff was very good, especially with the turbulence during the flight due to weather. Comfort was about par with other airlines but since it was a quick flight, was not much of an issue for us.

Liked that I could pick my seat and have a special meal without an extra charge. Luggage is reasonable for overseas trip. What could have been better is boarding and leaving on time.

Great flight, although I flew out of ONT and that is where my car is, lol

Staff is friendly, great variety of entertainment, check in a little messy but due to people not listening. Overall a pleasant experience. Would use again in the future.

Better training to have qualified crews and services. My flight was from around 12 midnight Friday Taipei to Vancouver. After two hours first meal (2:00 Am -8:00 ) no crew available for even asking for some water. I was even willing to pay for water. For breakfast after 8 hours the only drink was tea and coffee no water or juice.

Free Wi-Fi could have been better in the Airport.

3 of the 4 flights had delays despite the weather being fine, but still managed to make all connections

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

Baggage made it successfully to destination despite short layover. Appreciate that.

Excellent staff made the boarding process fast and easy. Friendly crews on both flights from Saigon to Taipei and Taipei to Los Angeles. Will fly China Airlines again.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

the head jack on my seat didn't work and the power outlet didn't work for my seat

Book cheap flights from Ontario to Singapore

Recent round-trip flight deals

8/27Tue
1 stopChina Airlines
20h 50mONT-SIN
9/10Tue
1 stopChina Airlines
31h 40mSIN-ONT
$923
11/1Fri
1 stopChina Airlines
22h 20mONT-SIN
11/19Tue
1 stopChina Airlines
30h 35mSIN-ONT
$955
9/19Thu
2 stopsKorean Air
31h 00mONT-SIN
9/23Mon
2 stopsKorean Air
34h 33mSIN-ONT
$1,114
8/31Sat
2 stopsDelta
25h 40mONT-SIN
9/16Mon
2 stopsDelta
26h 43mSIN-ONT
$1,122
8/28Wed
2 stops
31h 00mONT-SIN
9/11Wed
2 stops
22h 13mSIN-ONT
$1,126
9/1Sun
2 stops
25h 40mONT-SIN
9/16Mon
2 stops
22h 13mSIN-ONT
$1,127
9/2Mon
2 stopsKorean Air
25h 40mONT-SIN
9/16Mon
2 stopsKorean Air
22h 13mSIN-ONT
$1,128
8/14Wed
2 stopsUnited Airlines
25h 45mONT-SIN
9/8Sun
1 stopUnited Airlines
18h 45mSIN-ONT
$1,324
8/30Fri
1 stopUnited Airlines
20h 05mONT-SIN
9/24Tue
2 stopsUnited Airlines
27h 17mSIN-ONT
$1,330
8/31Sat
2 stopsDelta
39h 00mONT-SIN
9/15Sun
2 stopsDelta
31h 53mSIN-ONT
$1,377

Search by stops

Search by airline

Search by price

Recent one-way flight deals

10/9Wed
1 stopChina Airlines
21h 25mONT-SIN
$547
8/5Mon
1 stopChina Airlines
32h 55mONT-SIN
$597
9/3Tue
2 stopsKorean Air
25h 40mONT-SIN
$600
10/10Thu
2 stopsJapan Airlines
27h 20mONT-SIN
$623
8/5Mon
2 stops
32h 20mONT-SIN
$642
10/9Wed
2 stops
26h 15mONT-SIN
$668
7/17Wed
2 stopsKorean Air
45h 10mONT-SIN
$808
9/4Wed
1 stopUnited Airlines
20h 05mONT-SIN
$817
7/17Wed
1 stopUnited Airlines
25h 30mONT-SIN
$828
10/11Fri
2 stopsJapan Airlines
27h 20mONT-SIN
$841

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to Singapore

Last minute flight, train and bus deals

5/11Sat
multi-stopUnited Airlines
21h 45mONT-SIN
5/16Thu
multi-stopUnited Airlines
26h 53mSIN-ONT
$1,336
5/13Mon
multi-stopChina Airlines
21h 25mONT-SIN
5/21Tue
multi-stopChina Airlines
19h 30mSIN-ONT
$1,584
5/14Tue
multi-stopAmerican Airlines
27h 20mONT-SIN
5/21Tue
multi-stopAmerican Airlines
27h 03mSIN-ONT
$1,684
5/10Fri
multi-stopChina Airlines
21h 25mONT-SIN
5/17Fri
multi-stopChina Airlines
19h 30mSIN-ONT
$1,809
5/13Mon
multi-stop
21h 30mONT-SIN
5/15Wed
multi-stop
35h 35mSIN-ONT
$1,827
5/11Sat
multi-stopQatar Airways
31h 45mONT-SIN
5/16Thu
multi-stopQatar Airways
31h 59mSIN-ONT
$2,539
5/11Sat
multi-stopAmerican Airlines
27h 20mONT-SIN
5/16Thu
multi-stopAmerican Airlines
27h 03mSIN-ONT
$2,673
5/11Sat
multi-stopQatar Airways
29h 10mONT-SIN
5/15Wed
multi-stopQatar Airways
31h 59mSIN-ONT
$2,831
5/11Sat
multi-stopKorean Air
25h 50mONT-SIN
5/17Fri
multi-stopKorean Air
22h 12mSIN-ONT
$3,090
5/12Sun
multi-stopUnited Airlines
21h 45mONT-SIN
5/18Sat
multi-stopUnited Airlines
28h 01mSIN-ONT
$7,214

Search by stops

Search by airline

Search by price

Ontario - Singapore Flights

Departure:

Ontario (ONT)United States

Return flight deals:

Singapore - Ontario

Cabin classes:

Browse destinations: