How long is the flight from Ontario to Singapore?

A quick flight from Ontario to Singapore can take about 24h 40m. Delta provides one of the quickest options available for as low as $648. There are 8791 mi between Ontario and Singapore.

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

According to our current data, United Airlines ($783), China Airlines ($964), and STARLUX Airlines ($981) offers the cheapest pricing from Ontario to Singapore. You may be able to fly from Ontario to Singapore for 26% less than the average price by searching for these airlines.

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

What are the most popular airlines that fly from Ontario to Singapore?

Before booking your flight from Ontario to Singapore check out the most popular airlines for this route: China Airlines, United Airlines or STARLUX Airlines.

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.

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.

$322+ Flights from Ontario to Singapore

Q: 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 $1,342 and $1,590 in February. The cheapest round-trip price found within the last 3 days was $648 on Delta (Feb 16-Feb 23).

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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.

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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 December 12, 2025.

Thu 12/116:00 amONT - SIN

1 stop22h 15mUnited Airlines

Fri 1/2310:10 amSIN - ONT

1 stop23h 33mUnited Airlines

Deal found 12/11

$1,040

Thu 12/116:00 amONT - SIN

1 stop22h 15mUnited Airlines

Thu 12/1810:10 amSIN - ONT

2 stops26h 57mUnited Airlines

Deal found 12/10

$1,044

Thu 12/116:00 amONT - SIN

1 stop22h 15mUnited Airlines

Mon 1/196:35 amSIN - ONT

2 stops27h 08mUnited Airlines

Deal found 12/11

$1,052

Wed 12/106:41 pmONT - SIN

1 stop21h 19mUnited Airlines

Wed 12/1710:10 amSIN - ONT

1 stop18h 07mUnited Airlines

Deal found 12/10

$1,093

Thu 12/116:00 amONT - SIN

1 stop22h 15mUnited Airlines

Sun 1/186:35 amSIN - ONT

2 stops27h 08mUnited Airlines

Deal found 12/11

$1,105

Thu 12/116:00 amONT - SIN

1 stop22h 15mUnited Airlines

Sat 1/1710:10 amSIN - ONT

2 stops50h 48mUnited Airlines

Deal found 12/11

$1,112

Fri 12/125:05 amONT - SIN

2 stops27h 50mUnited Airlines

Tue 1/2010:10 amSIN - ONT

1 stop23h 41mUnited Airlines

Deal found 12/11

$1,154

Fri 12/125:05 amONT - SIN

2 stops33h 50mUnited Airlines

Fri 12/1910:20 pmSIN - ONT

1 stop27h 39mUnited Airlines

Deal found 12/11

$1,160

Fri 12/125:05 amONT - SIN

2 stops27h 50mUnited Airlines

Mon 1/196:35 amSIN - ONT

2 stops27h 08mUnited Airlines

Deal found 12/11

$1,166

Fri 12/125:05 amONT - SIN

2 stops27h 50mUnited Airlines

Sun 1/186:35 amSIN - ONT

2 stops27h 08mUnited Airlines

Deal found 12/11

$1,218

Fri 12/125:05 amONT - SIN

2 stops27h 50mUnited Airlines

Sat 1/1710:10 amSIN - ONT

2 stops50h 48mUnited Airlines

Deal found 12/11

$1,225

Best flights from Ontario to Singapore
Discover carefully curated flight deals from Ontario to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Thu 2/267:30 amONT - SIN

2 stops24h 40mDelta

Wed 3/2510:40 amSIN - ONT

2 stops26h 54mDelta

Deal found 12/11

$648

Thu 1/1511:59 pmONT - SIN

2 stops32h 51mAmerican Airlines

Fri 1/308:15 amSIN - ONT

2 stops30h 33mAmerican Airlines

Deal found 12/11

$758

Fri 5/16:00 amONT - SIN

1 stop21h 35mUnited Airlines

Wed 5/139:00 amSIN - ONT

1 stop18h 22mUnited Airlines

Deal found 12/10

$784

Thu 2/267:30 amONT - SIN

2 stops24h 40mDelta

Tue 3/2410:40 amSIN - ONT

2 stops26h 54mDelta

Deal found 12/11

$648

Mon 3/27:30 amONT - SIN

2 stops24h 40mDelta

Thu 3/2610:40 amSIN - ONT

2 stops26h 54mDelta

Deal found 12/11

$648

Sun 1/116:00 amONT - SIN

1 stop22h 15mUnited Airlines

Thu 1/2210:10 amSIN - ONT

1 stop23h 33mUnited Airlines

Deal found 12/10

$784

Mon 2/167:30 amONT - SIN

2 stops24h 40mDelta

Tue 2/2410:40 amSIN - ONT

2 stops27h 57mDelta

Deal found 12/10

$648

Wed 4/86:00 amONT - SIN

2 stops46h 55mDelta

Mon 4/277:30 amSIN - ONT

2 stops30h 10mDelta

Deal found 12/10

$648

Wed 3/47:30 amONT - SIN

2 stops24h 40mDelta

Tue 3/2410:40 amSIN - ONT

2 stops26h 54mDelta

Deal found 12/11

$648

Mon 3/27:30 amONT - SIN

2 stops24h 40mDelta

Wed 3/2510:40 amSIN - ONT

2 stops26h 54mDelta

Deal found 12/11

$648

Sat 2/287:30 amONT - SIN

2 stops29h 30mDelta

Sat 3/2810:30 pmSIN - ONT

2 stops40h 24mDelta

Deal found 12/11

$697

Sat 3/145:53 pmONT - SIN

2 stops44h 07mDelta

Fri 3/2010:40 amSIN - ONT

2 stops26h 54mDelta

Deal found 12/11

$703

Last-minute flights from Ontario to Singapore
Discover last-minute flight deals from Ontario to Singapore. Data last updated December 12, 2025 and is based on user searches.

Tue 1/61:24 pmONT - SIN

2 stops62h 51mUnited Airlines

Mon 1/2610:10 amSIN - ONT

1 stop23h 33mUnited Airlines

Deal found 12/10

$801

Thu 1/86:00 amONT - SIN

1 stop22h 15mUnited Airlines

Thu 1/1510:10 amSIN - ONT

1 stop23h 33mUnited Airlines

Deal found 12/11

$872

Thu 1/86:00 amONT - SIN

1 stop22h 15mUnited Airlines

Wed 1/1410:10 amSIN - ONT

1 stop23h 33mUnited Airlines

Deal found 12/11

$960

Thu 1/86:00 amONT - SIN

1 stop22h 15mUnited Airlines

Tue 1/1310:10 amSIN - ONT

1 stop28h 43mUnited Airlines

Deal found 12/11

$966

Mon 1/121:53 pmONT - SIN

1 stop26h 07mUnited Airlines

Fri 1/1610:10 amSIN - ONT

1 stop23h 33mUnited Airlines

Deal found 12/9

$922

Thu 1/1511:59 pmONT - SIN

2 stops32h 51mAmerican Airlines

Fri 1/308:15 amSIN - ONT

2 stops30h 33mAmerican Airlines

Deal found 12/11

$758

Thu 1/156:00 amONT - SIN

1 stop22h 15mUnited Airlines

Fri 1/3010:00 amSIN - ONT

2 stops26h 58mUnited Airlines

Deal found 12/11

$788

Sun 1/186:00 amONT - SIN

2 stops32h 35mAmerican Airlines

Sun 2/18:15 amSIN - ONT

2 stops30h 33mAmerican Airlines

Deal found 12/11

$755

Sun 1/2510:50 pmONT - SIN

1 stop22h 15mChina Airlines

Sun 2/82:25 pmSIN - ONT

1 stop18h 25mChina Airlines

Deal found 12/11

$945

Thu 1/296:00 amONT - SIN

2 stops26h 50mJapan Airlines

Thu 2/58:15 amSIN - ONT

2 stops22h 53mJapan Airlines

Deal found 12/11

$854

Fri 1/306:00 amONT - SIN

1 stop22h 15mUnited Airlines

Sat 2/1410:10 amSIN - ONT

1 stop18h 37mUnited Airlines

Deal found 12/9

$784

One-way flights from Ontario to Singapore
Search for one-way flight options from Ontario to Singapore. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Mon 3/306:00 amONT - SIN

2 stops32h 00mDelta

Deal found 12/11

$322

Wed 3/116:00 amONT - SIN

2 stops27h 10mKorean Air

Deal found 12/10

$324

Tue 5/57:00 amONT - SIN

2 stops31h 00mKorean Air

Deal found 12/9

$349

Sun 3/296:00 amONT - SIN

2 stops46h 55mDelta

Deal found 12/11

$367

Mon 2/96:00 amONT - SIN

2 stops26h 50mJapan Airlines

Deal found 12/11

$387

Mon 3/26:14 amONT - SIN

2 stops26h 36mJapan Airlines

Deal found 12/11

$394

Tue 2/107:30 amONT - SIN

2 stops24h 40mKorean Air

Deal found 12/10

$399

Wed 1/287:30 amONT - SIN

2 stops44h 55mKorean Air

Deal found 12/11

$401

Tue 1/131:24 pmONT - SIN

2 stops26h 36mUnited Airlines

Deal found 12/10

$410

Mon 1/121:24 pmONT - SIN

2 stops38h 51mUnited Airlines

Deal found 12/10

$416

Thu 1/156:00 amONT - SIN

2 stops32h 55mUnited Airlines

Deal found 12/10

$419

Sat 1/106:32 pmONT - SIN

1 stop33h 43mUnited Airlines

Deal found 12/10

$421

Find flight deals from Ontario to Singapore

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$648 (Delta)
One-way from	$322 (Delta)
Popular in	December
Cheapest in	August
Average price	$1,455

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. 4% potential increase in price ($55 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 2/26

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Wed 3/25

10:40 am-10:34 pm

2 stops26h 54m

$648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 2/26

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Tue 3/24

10:40 am-10:34 pm

2 stops26h 54m

$648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 3/2

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Thu 3/26

10:40 am-10:34 pm

2 stops26h 54m

$648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/16

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Tue 2/24

10:40 am-10:37 pm

2 stops27h 57m

$648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 4/8

6:00 am-7:55 pm

2 stops46h 55m

Singapore Changi

Mon 4/27

7:30 am-10:40 pm

2 stops30h 10m

$648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 3/4

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Tue 3/24

10:40 am-10:34 pm

2 stops26h 54m

$648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 3/2

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Wed 3/25

10:40 am-10:34 pm

2 stops26h 54m

$648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 2/28

7:30 am-5:00 am

2 stops29h 30m

Singapore Changi

Sat 3/28

10:30 pm-11:54 pm

2 stops40h 24m

$697

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 3/14

5:53 pm-5:00 am

2 stops44h 07m

Singapore Changi

Fri 3/20

10:40 am-10:34 pm

2 stops26h 54m

$703

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 1/15

11:59 pm-12:50 am

2 stops32h 51m

Singapore Changi

Fri 1/30

8:15 am-10:48 pm

2 stops30h 33m

$758

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 23 results

Compare providers for flights from Ontario to Singapore

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Singapore in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust 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 $589). Flying from Ontario to Singapore in December is currently the most expensive (average of $789). 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?

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

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

243 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

STARLUX Airlines

8.9

Very good

243 reviews

STARLUX Airlines

8.9

Very good

243 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

China Airlines

8.2

Very good

788 reviews

STARLUX Airlines

8.9

Very good

243 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

United Airlines

7.4

Good

9,095 reviews

STARLUX Airlines

8.9

Very good

243 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Related info for your journey

How long is the flight from Ontario to Singapore?
A quick flight from Ontario to Singapore can take about 24h 40m. Delta provides one of the quickest options available for as low as $648. There are 8791 mi between Ontario and Singapore.
What are the cheapest airlines flying from Ontario to Singapore round-trip?
According to our current data, United Airlines ($783), China Airlines ($964), and STARLUX Airlines ($981) offers the cheapest pricing from Ontario to Singapore. You may be able to fly from Ontario to Singapore for 26% 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 $589). Flying from Ontario to Singapore in December is currently the most expensive (average of $789). 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

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Other flights to Singapore

Top 3 airlines flying from Ontario to Singapore

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$783	Average$1,189	FlexibilityNo cancel fee	On-time69%
China Airlines	Cheapest$964	Average$1,046	FlexibilityNo cancel fee	On-time70%
STARLUX Airlines	Cheapest$981	Average$1,373	FlexibilityNo cancel fee	On-timeN/A

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$322+ 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Singapore with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Singapore

Cheapest flights from Ontario to SingaporeExplore 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 December 12, 2025.

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 December 12, 2025.

Find flight deals from Ontario to Singapore

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Singapore that are best for you.

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 December.

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.

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?

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

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

Reviews of airlines servicing Singapore

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.

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?

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

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

How can I find direct flights from Ontario to Singapore?

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

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

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.

Top 3 airlines flying from Ontario to Singapore

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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 December 12, 2025.