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$380+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SIN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$731
(StudentUniverse)

One-way from

$380
(Korean Air)

Popular in

December

Cheapest in

March

Average price

$970
Provider with most accurate pricing for Ontario-Singapore Changi flight deals.
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Provider most trusted by Cheapflights users for Ontario-Singapore Changi flights.
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From Ontario to Singapore Changi
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One-way flight from Ontario to Singapore Changi
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Highest demand for flights based on searches. 6% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 29, 2025.

This StudentUniverse deal was found by Cheapflights users on 4/27. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:00 amONT - SIN
2 stops31h 00mKorean Air
Wed 10/2910:30 pmSIN - ONT
2 stops33h 47mKorean Air
Deal found 4/27$731
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/177:00 amONT - SIN
2 stops25h 40mDelta
Thu 11/611:00 amSIN - ONT
2 stops22h 17mDelta
Deal found 4/27$814
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 10/296:00 amONT - SIN
1 stop23h 15mUnited Airlines
Tue 11/1110:10 amSIN - ONT
2 stops26h 07mUnited Airlines
Deal found 4/28$823
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:00 amONT - SIN
2 stops27h 20mJapan Airlines
Mon 9/151:55 amSIN - ONT
2 stops31h 33mJapan Airlines
Deal found 4/28$891
This oojo deal was found by Cheapflights users on 4/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2212:10 amONT - SIN
1 stop21h 25mChina Airlines
Wed 10/292:15 pmSIN - ONT
1 stop18h 35mChina Airlines
Deal found 4/27$913
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:55 pmONT - SIN
1 stop31h 40mSingapore Airlines
Tue 10/289:00 amSIN - ONT
1 stop28h 37mSingapore Airlines
Deal found 4/28$962
This Travelocity deal was found by Cheapflights users on 4/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:00 amONT - SIN
2 stops31h 00mMultiple Airlines
Tue 10/282:15 pmSIN - ONT
1 stop18h 35mMultiple Airlines
Deal found 4/28$1,000
This Trip.com deal was found by Cheapflights users on 4/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2311:45 pmONT - SIN
1 stop21h 55mSTARLUX Airlines
Wed 9/172:00 pmSIN - ONT
1 stop18h 05mSTARLUX Airlines
Deal found 4/27$1,102
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/316:00 amONT - SIN
2 stops42h 45mQatar Airways
Fri 9/193:10 amSIN - ONT
2 stops35h 49mQatar Airways
Deal found 4/29$1,259

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 April 29, 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

Thu 10/23

7:00 am-5:00 am

2 stops31h 00m

Singapore Changi

Wed 10/29

10:30 pm-5:17 pm

2 stops33h 47m

$731

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 10/17

7:00 am-11:40 pm

2 stops25h 40m

Singapore Changi

Thu 11/6

11:00 am-5:17 pm

2 stops22h 17m

$814

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 8/23

6:00 am-6:25 pm

1 stop21h 25m

Singapore Changi

Wed 9/10

8:45 am-8:33 pm

1 stop26h 48m

$865

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 9/9

6:00 am-12:20 am

2 stops27h 20m

Singapore Changi

Mon 9/15

1:55 am-6:28 pm

2 stops31h 33m

$891

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 10/22

12:10 am-12:35 pm

1 stop21h 25m

Singapore Changi

Wed 10/29

2:15 pm-5:50 pm

1 stop18h 35m

$913

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 10/23

6:55 pm-5:35 pm

1 stop31h 40m

Singapore Changi

Tue 10/28

9:00 am-10:37 pm

1 stop28h 37m

$962

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 10/23

7:00 am-5:00 am

2 stops31h 00m

Singapore Changi

Tue 10/28

2:15 pm-5:50 pm

1 stop18h 35m

$1,000

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 9/20

11:10 pm-12:40 pm

1 stop22h 30m

Singapore Changi

Sat 9/27

2:00 pm-5:05 pm

1 stop18h 05m

$1,064

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 8/31

6:00 am-3:45 pm

2 stops42h 45m

Singapore Changi

Fri 9/19

3:10 am-11:59 pm

2 stops35h 49m

$1,259

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 9/3

7:00 am-11:40 pm

2 stops25h 40m

$380

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 18 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Ontario-Singapore flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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, September is the cheapest month in which you can book a flight from Ontario to Singapore (average of $1,011). Flying from Ontario to Singapore in December is currently the most expensive (average of $1,684). 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 April 29, 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 23% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Ontario to Singapore?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Singapore. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Singapore flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

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.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

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).

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 April 29, 2025.
Read reviews from past customers who have flown STARLUX Airlines, EVA Air and Korean Air from Ontario to Singapore. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
161 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
EVA Air
8.4
Very good
1,186 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Korean Air
8.4
Very good
1,066 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very good
1,459 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very good
729 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Boarding

9.0

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

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.

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

    According to our current data, Korean Air ($731), Delta ($814), and United Airlines ($865) offers the cheapest pricing from Ontario to Singapore. You may be able to fly from Ontario to Singapore for 37% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Ontario to Singapore one-way?

    One-way options have recently been found by users for as low as $380 on Korean Air. Other airlines that offer cheap prices include Japan Airlines from $410 and United Airlines from $413 one-way.

  • 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, September is the cheapest month in which you can book a flight from Ontario to Singapore (average of $1,011). Flying from Ontario to Singapore in December is currently the most expensive (average of $1,684). 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 2 airlines flying from Ontario to Singapore

Discover the top 2 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$887Average$1,336FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$966Average$1,064FlexibilityNo cancel feeOn-time70%

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