HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Singapore

$411+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SIN
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Singapore with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 July 25, 2026.

This Delta deal was found by Cheapflights users on 7/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
ONT
-
SIN
2 stops32h 00m
Delta
Mon 9/141:25 am
SIN
-
ONT
2 stops37h 22m
Delta
Deal found 7/23$834
This Priceline deal was found by Cheapflights users on 7/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:20 am
ONT
-
SIN
2 stops26h 35m
Korean Air
Wed 8/261:25 am
SIN
-
ONT
2 stops30h 56m
Korean Air
Deal found 7/24$840
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:20 am
ONT
-
SIN
2 stops26h 35m
Delta
Thu 11/51:35 am
SIN
-
ONT
2 stops36h 36m
Delta
Deal found 7/25$846
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/206:08 am
ONT
-
SIN
1 stop21h 27m
United Airlines
Wed 9/168:45 am
SIN
-
ONT
1 stop18h 27m
United Airlines
Deal found 7/24$873
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/231:56 pm
ONT
-
SIN
1 stop25h 19m
United Airlines
Thu 8/278:45 am
SIN
-
ONT
2 stops27h 08m
United Airlines
Deal found 7/24$877
This Delta deal was found by Cheapflights users on 7/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:20 am
ONT
-
SIN
2 stops26h 35m
Delta
Wed 10/77:30 am
SIN
-
ONT
2 stops24h 42m
Delta
Deal found 7/23$878
This United Airlines deal was found by Cheapflights users on 7/23. 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 8/206:08 am
ONT
-
SIN
2 stops33h 32m
United Airlines
Thu 9/178:45 am
SIN
-
ONT
1 stop26h 16m
United Airlines
Deal found 7/23$882
This Delta deal was found by Cheapflights users on 7/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
ONT
-
SIN
2 stops26h 55m
Delta
Sun 8/2310:00 pm
SIN
-
ONT
2 stops39h 45m
Delta
Deal found 7/23$884
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Wed 8/129:01 am
ONT
-
SIN
2 stops24h 44m
United Airlines
Tue 8/188:45 am
SIN
-
ONT
1 stop26h 16m
United Airlines
Deal found 7/23$885
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Sat 8/151:56 pm
ONT
-
SIN
2 stops49h 44m
United Airlines
Sat 9/58:45 am
SIN
-
ONT
2 stops27h 08m
United Airlines
Deal found 7/22$886

Find 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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$834
(Delta)

One-way from

$411
(Kissandfly.com)

Popular in

August

Cheapest in

October

Average price

$1,326
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. 9% potential increase in price ($145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 25, 2026.
Use the filters below to find and compare flights from Ontario to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 1/18

6:53 pm-8:00 am

1 stop21h 07m

Singapore Changi

Mon 2/22

10:10 am-5:47 pm

1 stop23h 37m

$873

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 8/20

6:08 am-6:35 pm

1 stop21h 27m

Singapore Changi

Thu 9/17

8:45 am-6:11 pm

1 stop24h 26m

$873

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 8/11

6:08 am-6:35 pm

1 stop21h 27m

Singapore Changi

Tue 8/18

8:45 am-8:01 pm

1 stop26h 16m

$873

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 1/16

6:00 am-12:55 am

2 stops26h 55m

Singapore Changi

Sat 1/30

6:35 am-3:27 pm

2 stops24h 52m

$904

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 1/16

6:00 am-12:55 am

2 stops26h 55m

Singapore Changi

Fri 2/5

10:10 am-5:47 pm

1 stop23h 37m

$935

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 8/15

11:00 am-6:15 am

1 stop28h 15m

Singapore Changi

Sat 9/5

8:45 am-3:41 pm

1 stop21h 56m

$1,019

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 11/4

6:00 am-8:15 pm

1 stop22h 15m

Singapore Changi

Fri 11/13

10:45 am-8:15 pm

2 stops25h 30m

$1,080
Quickest round-trip

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 10/28

9:00 am-8:15 pm

1 stop20h 15m

Singapore Changi

Fri 11/13

10:10 am-12:01 pm

1 stop17h 51m

$1,164

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 10/24

11:13 am-8:45 am

2 stops30h 32m

Singapore Changi

Fri 10/30

3:15 am-6:00 pm

2 stops29h 45m

$1,245

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 12/30

6:00 am-8:15 pm

1 stop22h 15m

Singapore Changi

Sun 1/31

10:10 am-8:20 pm

2 stops26h 10m

$1,301

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Singapore flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, October is the cheapest month in which you can book a flight from Ontario to Singapore (average of $887). Flying from Ontario to Singapore in August is currently the most expensive (average of $2,009). 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.

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

Airfare is below average for this route at the moment.

Ontario to Singapore flights typically cost between $1,099 and $1,724 in September.
The cheapest round-trip price found within the last 5 days was $834 on Delta (Sep 9-Sep 14).

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 July 25, 2026.
Peruse reviews from past customers who have flown with STARLUX Airlines,China Airlines, andUnited 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
8.8
Very good
362 reviews

Comfort

8.8

Boarding

8.9

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
STARLUX Airlines
8.8
Very good
362 reviews
STARLUX Airlines
8.8
Very good
362 reviews

Comfort

8.8

Boarding

8.9

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
China Airlines
8.3
Very good
838 reviews
STARLUX Airlines
8.8
Very good
362 reviews

Comfort

8.8

Boarding

8.9

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
United Airlines
7.4
Good
10,034 reviews
STARLUX Airlines
8.8
Very good
362 reviews

Comfort

8.8

Boarding

8.9

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.

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 21h 27m. Delta provides one of the quickest options available for as low as $873. 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 ($783), STARLUX Airlines ($887), and China Airlines ($958) offers the cheapest pricing from Ontario to Singapore. You may be able to fly from Ontario to Singapore for 40% 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, October is the cheapest month in which you can book a flight from Ontario to Singapore (average of $887). Flying from Ontario to Singapore in August is currently the most expensive (average of $2,009). 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.

Alternative routes for Ontario to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Singapore flights
San Francisco to Singapore flights
San Diego to Singapore flights
Las Vegas to Singapore flights
Sacramento to Singapore flights
Reno to Singapore flights

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 July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$783Average$1,189FlexibilityNo cancel feeOn-time69%
STARLUX AirlinesCheapest$887Average$1,326FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$958Average$1,169FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.