What is the cheapest airline that flies from Ontario to Singapore?

Delta, Korean Air, and Japan Airlines are the most popular carriers operating from Ontario to Singapore

What airlines fly to Singapore?

Singapore Airlines, United Airlines and Korean Air are the top three most popular airlines that fly to Singapore from Ontario according to our data. Singapore Airlines is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 17 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Singapore?

Prices for flights from Ontario Airport to Singapore are updated daily.

How many operators does momondo search for flights from Ontario Airport to Singapore?

There are 3 operators available for flights from Ontario Airport to Singapore as of December 2025.

How old do you have to be to fly from Ontario Airport to Singapore?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Singapore.

What documentation or ID do you need to fly to Singapore?

The necessary travel and health documents for your Singapore trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$312 Cheap Flights from Ontario to Singapore in 2025/26

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Find the cheapest flights from Ontario to Singapore

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Cheap round-trip flights

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7:30 am - 12:10 am

ONT

SIN

24h 40m2 stops

1:35 am - 10:44 pm

SIN

ONT

37h 09m2 stops

$633Delta

Mon, Jan 26 - Tue, Feb 3

3:30 pm - 8:25 pm

ONT

SIN

60h 55m2 stops

1:35 am - 10:44 pm

SIN

ONT

37h 09m2 stops

$639Delta

Thu, Jan 22 - Fri, Feb 6

7:30 am - 12:10 am

ONT

SIN

24h 40m2 stops

10:40 am - 10:37 pm

SIN

ONT

27h 57m2 stops

$648Delta

Mon, Feb 16 - Mon, Feb 23

7:30 am - 12:10 am

ONT

SIN

24h 40m2 stops

10:30 pm - 10:37 pm

SIN

ONT

40h 07m2 stops

$673Delta

Sat, Feb 14 - Sun, Feb 22

6:00 am - 5:00 am

ONT

SIN

32h 00m2 stops

1:35 am - 10:34 pm

SIN

ONT

35h 59m2 stops

$679Korean Air

Sun, Mar 15 - Sun, Mar 22

7:30 am - 12:10 am

ONT

SIN

24h 40m2 stops

10:40 am - 10:37 pm

SIN

ONT

27h 57m2 stops

$697Delta

Sun, Feb 15 - Fri, Feb 20

6:00 am - 6:35 pm

ONT

SIN

21h 35m1 stop

9:00 am - 5:47 pm

SIN

ONT

23h 47m1 stop

$784United Airlines

Thu, Apr 2 - Mon, Apr 6

6:00 am - 6:35 pm

ONT

SIN

21h 35m1 stop

9:00 am - 12:38 pm

SIN

ONT

42h 38m2 stops

$788United Airlines

Thu, Apr 2 - Mon, Apr 6

6:00 am - 6:35 pm

ONT

SIN

21h 35m1 stop

11:05 am - 10:52 pm

SIN

ONT

26h 47m2 stops

$793United Airlines

Fri, May 1 - Wed, May 13

6:00 am - 12:45 am

ONT

SIN

27h 45m2 stops

9:00 am - 5:47 pm

SIN

ONT

23h 47m1 stop

$796United Airlines

Wed, Apr 15 - Mon, Apr 27

Delta flights from Ontario to Singapore

Our best Delta deals on Ontario to Singapore flight tickets

Delta

Jan 26

ONT7:30 amOntario

24h 40m

2 stops

SIN12:10 amSingapore Changi

Feb 3

SIN1:35 amSingapore Changi

37h 09m

2 stops

ONT10:44 pmOntario

$633

Find similar

Delta

Jan 22

ONT3:30 pmOntario

60h 55m

2 stops

SIN8:25 pmSingapore Changi

Feb 6

SIN1:35 amSingapore Changi

37h 09m

2 stops

ONT10:44 pmOntario

$639

Find similar

Delta

Feb 16

ONT7:30 amOntario

24h 40m

2 stops

SIN12:10 amSingapore Changi

Feb 23

SIN10:40 amSingapore Changi

27h 57m

2 stops

ONT10:37 pmOntario

$648

Find similar

United Airlines flights from Ontario to Singapore

Our best United Airlines deals on Ontario to Singapore flight tickets

United Airlines

Apr 2

ONT6:00 amOntario

21h 35m

1 stop

SIN6:35 pmSingapore Changi

Apr 6

SIN9:00 amSingapore Changi

23h 47m

1 stop

ONT5:47 pmOntario

$784

Find similar

United Airlines

Apr 2

ONT6:00 amOntario

21h 35m

1 stop

SIN6:35 pmSingapore Changi

Apr 6

SIN9:00 amSingapore Changi

42h 38m

2 stops

ONT12:38 pmOntario

$788

Find similar

United Airlines

May 1

ONT6:00 amOntario

21h 35m

1 stop

SIN6:35 pmSingapore Changi

May 13

SIN11:05 amSingapore Changi

26h 47m

2 stops

ONT10:52 pmOntario

$793

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 1/26

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Tue 2/3

1:35 am-10:44 pm

2 stops37h 09m

$633

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 1/22

3:30 pm-8:25 pm

2 stops60h 55m

Singapore Changi

Fri 2/6

1:35 am-10:44 pm

2 stops37h 09m

$639

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/16

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Mon 2/23

10:40 am-10:37 pm

2 stops27h 57m

$648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 2/14

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Sun 2/22

10:30 pm-10:37 pm

2 stops40h 07m

$673

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 3/15

6:00 am-5:00 am

2 stops32h 00m

Singapore Changi

Sun 3/22

1:35 am-10:34 pm

2 stops35h 59m

$679

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 2/15

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Fri 2/20

10:40 am-10:37 pm

2 stops27h 57m

$697

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 4/2

6:00 am-6:35 pm

1 stop21h 35m

Singapore Changi

Mon 4/6

9:00 am-5:47 pm

1 stop23h 47m

$784

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 4/2

6:00 am-6:35 pm

1 stop21h 35m

Singapore Changi

Mon 4/6

9:00 am-12:38 pm

2 stops42h 38m

$788

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 5/1

6:00 am-6:35 pm

1 stop21h 35m

Singapore Changi

Wed 5/13

11:05 am-10:52 pm

2 stops26h 47m

$793

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 4/15

6:00 am-12:45 am

2 stops27h 45m

Singapore Changi

Mon 4/27

9:00 am-5:47 pm

1 stop23h 47m

$796

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Singapore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Ontario to Singapore is on a Monday when prices can be found for as low as $1,005. The most expensive day to fly to Singapore is Thursday, with ticket prices averaging around $1,340.

What is the cheapest time of day to depart on your flight to Singapore?

In the morning is the cheapest time of day to fly from Ontario to Singapore when you can find flight prices for as low as $1,057. Flying to Singapore in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,371 on average. Flights to Singapore from Ontario at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Ontario to Singapore flights?

You could potentially save up to 7% on your flight if you consider stops on a Ontario to Singapore flight.

Cheap Ontario to Singapore flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Singapore

Fastest flight time	21h 19m
Direct flights	None

The fastest flight from Ontario to Singapore takes 21h 19m

There are no direct flights from Ontario to Singapore. There are no popular flight routes from Ontario to Singapore.

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Singapore?
Prices for flights from Ontario Airport to Singapore are updated daily.
How many operators does momondo search for flights from Ontario Airport to Singapore?
There are 3 operators available for flights from Ontario Airport to Singapore as of December 2025.
How old do you have to be to fly from Ontario Airport to Singapore?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Singapore.
What documentation or ID do you need to fly to Singapore?
The necessary travel and health documents for your Singapore trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ontario to Singapore

Compare and see reviews for airlines that fly from Ontario to Singapore with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $783	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
China Airlines	PriceFrom $964	Free Cancellation	Rating 8.2 788 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $981	Free Cancellation	Rating 8.9 243 reviews	Search STARLUX Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Singapore?

It is quick and easy to find Ontario to Singapore flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Singapore that suits you.

Can I find flights from Ontario to Singapore with flexible booking policies on momondo?

Flights from Ontario to Singapore with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Singapore?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Singapore.

I’m not ready to book a flight from Ontario to Singapore right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Singapore from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Singapore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Singapore

Flights to Singaporefrom $579

Cheap flights from Ontario to Singapore from $312

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Singapore departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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Find the cheapest flights from Ontario to Singapore

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Delta flights from Ontario to Singapore

Our best Delta deals on Ontario to Singapore flight tickets

United Airlines flights from Ontario to Singapore

Our best United Airlines deals on Ontario to Singapore flight tickets

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

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How to get the cheapest flight ticket from Ontario to Singapore

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Ontario to Singapore is on a Monday when prices can be found for as low as $1,005. The most expensive day to fly to Singapore is Thursday, with ticket prices averaging around $1,340.

What is the cheapest time of day to depart on your flight to Singapore?

Can stopping save me money on Ontario to Singapore flights?

You could potentially save up to 7% on your flight if you consider stops on a Ontario to Singapore flight.

What is the cheapest airline that flies from Ontario to Singapore?

Delta, Korean Air, and Japan Airlines are the most popular carriers operating from Ontario to Singapore

What airlines fly to Singapore?

Cheap Ontario to Singapore flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Singapore

Fastest flight time

Direct flights

When did momondo last update prices for flights from Ontario Airport to Singapore?

How many operators does momondo search for flights from Ontario Airport to Singapore?

How old do you have to be to fly from Ontario Airport to Singapore?

What documentation or ID do you need to fly to Singapore?

Best airlines flying from Ontario to Singapore

Compare and see reviews for airlines that fly from Ontario to Singapore with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Singapore?

Can I find flights from Ontario to Singapore with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Singapore?

I’m not ready to book a flight from Ontario to Singapore right now. Can momondo alert me if prices change?

An easier way to manage your Singapore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Singapore

Popular cities in Singapore

Popular flights according to clicks in the last 7 days on momondo