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$352+ Cheap flights from Ontario (ONT) to Singapore (SIN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SIN
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find flight deals from Ontario to Singapore

Cheapest flights from Ontario to Singapore
Explore the most affordable flight options available from Ontario to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Korean Air deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:45 amONT - SIN
2 stops25h 25mKorean Air
Mon 11/241:35 amSIN - ONT
2 stops37h 20mKorean Air
Deal found 10/28$739
This Korean Air deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:40 amONT - SIN
2 stops30h 20mKorean Air
Thu 12/2510:30 pmSIN - ONT
2 stops34h 38mKorean Air
Deal found 10/26$748
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/211:59 pmONT - SIN
2 stops32h 51mAmerican Airlines
Mon 11/108:15 amSIN - ONT
2 stops26h 06mAmerican Airlines
Deal found 10/27$759
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:00 amONT - SIN
1 stop22h 15mUnited Airlines
Sat 11/810:10 amSIN - ONT
1 stop23h 24mUnited Airlines
Deal found 10/27$783
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:00 amONT - SIN
1 stop22h 15mUnited Airlines
Tue 11/2510:10 amSIN - ONT
1 stop23h 24mUnited Airlines
Deal found 10/28$784
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/165:05 amONT - SIN
2 stops34h 55mUnited Airlines
Mon 11/2410:20 pmSIN - ONT
2 stops30h 13mUnited Airlines
Deal found 10/28$788
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amONT - SIN
1 stop23h 15mUnited Airlines
Sat 11/110:20 pmSIN - ONT
1 stop30h 17mUnited Airlines
Deal found 10/26$789
This Kissandfly.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:40 pmONT - SIN
1 stop26h 20mLufthansa
Wed 12/1010:10 amSIN - ONT
1 stop23h 27mLufthansa
Deal found 10/28$792
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:40 pmONT - SIN
1 stop38h 35mUnited Airlines
Sun 11/1610:20 pmSIN - ONT
1 stop35h 14mUnited Airlines
Deal found 10/26$795
This Ovago deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:40 amONT - SIN
2 stops30h 20mKorean Air
Tue 12/2310:40 amSIN - ONT
2 stops46h 28mKorean Air
Deal found 10/27$805

Cheap flight deals from Ontario to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$733
(Delta)

One-way from

$352
(Jettzy)

Popular in

December

Cheapest in

August

Average price

$1,120
Provider with most accurate pricing for Ontario-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Singapore Changi flights.
Search Deals
From Ontario to Singapore Changi
Search Deals
One-way flight from Ontario to Singapore Changi
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Ontario to Singapore that are best for you.

Fly from

Ontario

Fly to

Singapore

Route

Depart

Return

Price

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 4/12

6:45 am-5:00 am

2 stops31h 15m

Singapore Changi

Wed 4/15

7:30 am-10:40 pm

2 stops30h 10m

$733

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 2/18

6:45 am-5:00 am

2 stops30h 15m

Singapore Changi

Sun 3/15

1:35 am-10:38 pm

2 stops36h 03m

$739

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 3/2

6:45 am-12:10 am

2 stops25h 25m

Singapore Changi

Wed 3/11

1:35 am-10:38 pm

2 stops36h 03m

$739

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 2/3

6:00 am-8:15 pm

1 stop22h 15m

Singapore Changi

Tue 2/24

10:10 am-12:38 pm

1 stop18h 28m

$783

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 1/28

1:53 pm-8:00 am

1 stop26h 07m

Singapore Changi

Mon 2/9

10:10 am-5:43 pm

1 stop23h 33m

$783

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 1/19

1:53 pm-8:00 am

1 stop26h 07m

Singapore Changi

Tue 1/27

10:10 am-5:43 pm

1 stop23h 33m

$783

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 1/13

6:00 am-8:15 pm

1 stop22h 15m

Singapore Changi

Tue 1/27

10:10 am-5:43 pm

1 stop23h 33m

$783

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 1/17

6:00 am-8:15 pm

1 stop22h 15m

Singapore Changi

Tue 1/27

10:10 am-5:43 pm

1 stop23h 33m

$783

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 3/15

6:00 am-8:15 pm

1 stop23h 15m

Singapore Changi

Mon 4/6

9:00 am-8:35 pm

1 stop26h 35m

$784

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 2/19

6:37 pm-8:00 am

1 stop21h 23m

Singapore Changi

Fri 3/6

10:10 am-12:17 pm

1 stop18h 07m

$784

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 22 results
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Compare providers for flights from Ontario to Singapore

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Singapore in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Singapore flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Singapore flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Singapore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Singapore flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Ontario to Singapore?

Currently, February is the cheapest month in which you can book a flight from Ontario to Singapore (average of $582). Flying from Ontario to Singapore in December is currently the most expensive (average of $774). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to SIN?

Find hourly flight availability from Ontario to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Singapore in the morning. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Ontario to Singapore?

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated October 28, 2025.
Peruse reviews from past customers who have flown with STARLUX Airlines, China Airlines, and United Airlines from Ontario to Singapore to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
219 reviews

Overall

8.9

Food

8.7

Boarding

8.9

Entertainment

8.8

Comfort

8.9

Crew

9.2

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
STARLUX Airlines
8.9
Very good
219 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Overall

8.9

Food

8.7

Boarding

8.9

Entertainment

8.8

Comfort

8.9

Crew

9.2

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
China Airlines
8.3
Very good
776 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Overall

8.9

Food

8.7

Boarding

8.9

Entertainment

8.8

Comfort

8.9

Crew

9.2

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
United Airlines
7.4
Good
9,001 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Overall

8.9

Food

8.7

Boarding

8.9

Entertainment

8.8

Comfort

8.9

Crew

9.2

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

Related info for your journey

Find useful and relevant information for your journey from Ontario to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Singapore?

    A quick flight from Ontario to Singapore can take about 22h 15m. Delta provides one of the quickest options available for as low as $783. There are 8791 mi between Ontario and Singapore. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Ontario to Singapore round-trip?

    According to our current data, United Airlines ($796), STARLUX Airlines ($887), and China Airlines ($970) offers the cheapest pricing from Ontario to Singapore. You may be able to fly from Ontario to Singapore for 27% less than the average price by searching for these airlines.

  • Can I find deals for flights from Ontario to Singapore that include hotel bookings?

    Yes. In addition to deals on Ontario to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Singapore.

  • Can I find deals for business class flights from Ontario to Singapore?

    Yes. Cheapflights offers flight deals from Ontario to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Singapore?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Singapore (average of $582). Flying from Ontario to Singapore in December is currently the most expensive (average of $774). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Ontario to Singapore

Discover the top 3 airlines that operate flights from Ontario to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$796Average$1,189FlexibilityNo cancel feeOn-time69%
STARLUX AirlinesCheapest$887Average$1,378FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$970Average$1,204FlexibilityNo cancel feeOn-time70%

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