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

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

Which layover airport offers the lowest fares from Ontario to Singapore?

Flights via San Francisco (SFO) offer the lowest average round-trip price of $1,236.

Which layover airport has the shortest travel time from Ontario to Singapore?

Flights connecting via Taipei City (TPE) have the shortest average one-way travel time: 22h 27m.

What airlines fly to Singapore?

Singapore Airlines, United Airlines and Cathay Pacific 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 18 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Ontario to Singapore?

Taipei City (TPE) has the shortest average layover time for this route: 2h 32m.

Which airport is the most popular layover for flights between Ontario and Singapore?

Taipei City (TPE) was the most common stop: 56% of momondo users choosing 1-stop flights on this route connected there.

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

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

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

The number of operators available for flights from Ontario Airport to Singapore Changi Airport is 3 as of November 2025.

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

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 Changi Airport.

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

The necessary travel and health documents for your Singapore Changi Airport 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.

$356 Cheap Flights from Ontario to Singapore in 2025/26

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Cheap round-trip flights

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7:30 am - 5:00 amONT-SIN

29h 30m2 stops

10:30 pm - 10:38 pmSIN-ONT

39h 08m2 stops

$733Delta

Find Deal

Sat, Feb 28 - Wed, Mar 11

3:30 pm - 5:00 amONT-SIN

45h 30m2 stops

10:30 pm - 10:38 pmSIN-ONT

39h 08m2 stops

$739Delta

Find Deal

Fri, Mar 6 - Wed, Mar 11

6:37 pm - 8:00 amONT-SIN

21h 23m1 stop

10:10 am - 5:41 pmSIN-ONT

22h 31m1 stop

$783United Airlines

Find Deal

Sun, Mar 1 - Wed, Mar 11

6:00 am - 8:15 pmONT-SIN

22h 15m1 stop

10:10 am - 5:37 pmSIN-ONT

23h 27m1 stop

$784United Airlines

Find Deal

Fri, Dec 5 - Fri, Dec 12

1:45 pm - 8:00 amONT-SIN

26h 15m1 stop

10:10 am - 7:57 pmSIN-ONT

25h 47m2 stops

$788United Airlines

Find Deal

Sun, Mar 1 - Sun, Mar 8

1:53 pm - 8:15 pmONT-SIN

38h 22m1 stop

10:10 am - 5:43 pmSIN-ONT

23h 33m1 stop

$789United Airlines

Find Deal

Thu, Jan 29 - Mon, Feb 2

6:39 pm - 8:15 pmONT-SIN

33h 36m1 stop

10:10 am - 8:58 pmSIN-ONT

26h 48m2 stops

$794United Airlines

Find Deal

Thu, Jan 29 - Mon, Feb 2

1:50 pm - 8:15 pmONT-SIN

62h 25m2 stops

10:10 am - 5:41 pmSIN-ONT

22h 31m1 stop

$800United Airlines

Find Deal

Fri, Mar 6 - Wed, Mar 11

7:30 am - 5:00 amONT-SIN

29h 30m2 stops

1:35 am - 10:38 pmSIN-ONT

36h 03m2 stops

$803Delta

Find Deal

Sat, Feb 28 - Tue, Mar 10

3:30 pm - 5:00 amONT-SIN

45h 30m2 stops

1:35 am - 10:38 pmSIN-ONT

36h 03m2 stops

$809Delta

Find Deal

Fri, Mar 6 - Tue, Mar 10

China Airlines flights from Ontario to Singapore

Our best China Airlines deals on Ontario to Singapore flight tickets

China Airlines

Jan 13

ONT10:50 pmOntario

33h 50m

1 stop

SIN12:40 amSingapore Changi

Jan 26

SIN2:00 amSingapore Changi

30h 50m

1 stop

ONT4:50 pmOntario

$929

Find similar

China Airlines

Jan 11

ONT10:50 pmOntario

33h 50m

1 stop

SIN12:40 amSingapore Changi

Jan 25

SIN2:00 amSingapore Changi

30h 50m

1 stop

ONT4:50 pmOntario

$936

Find similar

China Airlines

Jan 11

ONT10:50 pmOntario

33h 50m

1 stop

SIN12:40 amSingapore Changi

Jan 25

SIN2:00 amSingapore Changi

30h 50m

1 stop

ONT4:50 pmOntario

$943

Find similar

Korean Air flights from Ontario to Singapore

Our best Korean Air deals on Ontario to Singapore flight tickets

Korean Air

Mar 5

ONT7:30 amOntario

29h 30m

2 stops

SIN5:00 amSingapore Changi

Mar 15

SIN10:30 pmSingapore Changi

33h 45m

2 stops

ONT5:15 pmOntario

$888

Find similar

Korean Air

Jan 29

ONT7:30 amOntario

24h 40m

2 stops

SIN12:10 amSingapore Changi

Feb 1

SIN1:35 amSingapore Changi

28h 21m

2 stops

ONT1:56 pmOntario

$958

Find similar

Korean Air

Apr 2

ONT6:45 amOntario

25h 55m

2 stops

SIN11:40 pmSingapore Changi

Apr 10

SIN7:30 amSingapore Changi

24h 45m

2 stops

ONT5:15 pmOntario

$990

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 2/28

7:30 am-5:00 am

2 stops29h 30m

Singapore Changi

Wed 3/11

10:30 pm-10:38 pm

2 stops39h 08m

$733

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 3/6

3:30 pm-5:00 am

2 stops45h 30m

Singapore Changi

Wed 3/11

10:30 pm-10:38 pm

2 stops39h 08m

$739

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 3/1

6:37 pm-8:00 am

1 stop21h 23m

Singapore Changi

Wed 3/11

10:10 am-5:41 pm

1 stop22h 31m

$783

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 12/5

6:00 am-8:15 pm

1 stop22h 15m

Singapore Changi

Fri 12/12

10:10 am-5:37 pm

1 stop23h 27m

$784

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 3/1

1:45 pm-8:00 am

1 stop26h 15m

Singapore Changi

Sun 3/8

10:10 am-7:57 pm

2 stops25h 47m

$788

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 1/29

1:53 pm-8:15 pm

1 stop38h 22m

Singapore Changi

Mon 2/2

10:10 am-5:43 pm

1 stop23h 33m

$789

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 1/29

6:39 pm-8:15 pm

1 stop33h 36m

Singapore Changi

Mon 2/2

10:10 am-8:58 pm

2 stops26h 48m

$794

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 3/6

1:50 pm-8:15 pm

2 stops62h 25m

Singapore Changi

Wed 3/11

10:10 am-5:41 pm

1 stop22h 31m

$800

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 2/28

7:30 am-5:00 am

2 stops29h 30m

Singapore Changi

Tue 3/10

1:35 am-10:38 pm

2 stops36h 03m

$803

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 3/6

3:30 pm-5:00 am

2 stops45h 30m

Singapore Changi

Tue 3/10

1:35 am-10:38 pm

2 stops36h 03m

$809

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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

Layovers

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 $862. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,054.

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

In the evening is the cheapest time of day to fly from Ontario to Singapore when you can find flight prices for as low as $941. Flying to Singapore in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,469 on average. Flights to Singapore from Ontario in the morning 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.

When to book flights from Ontario to Singapore

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Singapore according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Singapore (ONT to SIN) flight deals and tips

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

Direct flights	None

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

Search flight deals

How far is Ontario to Singapore Changi by plane?
The straight-line distance from Ontario to Singapore Changi is 8797.3 mi. Typically, this will take 20h 04m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to Singapore Changi Airport?
Prices for flights from Ontario Airport to Singapore Changi Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Singapore Changi Airport?
The number of operators available for flights from Ontario Airport to Singapore Changi Airport is 3 as of November 2025.
How old do you have to be to fly from Ontario Airport to Singapore Changi Airport?
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 Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The necessary travel and health documents for your Singapore Changi Airport 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.
What is the most popular airline from Ontario to Singapore?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Singapore is United Airlines (47% of total bookings). The next most popular airlines are China Airlines (37%) and STARLUX Airlines (16%).

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 $796	Free Cancellation	Rating 7.4 9,023 reviews	Search United Airlines flights
STARLUX Airlines	PriceFrom $887	Free Cancellation	Rating 8.9 232 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $964	Free Cancellation	Rating 8.3 782 reviews	Search China 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?

Yes. momondo allows you to filter the results for Ontario to Singapore flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Singapore from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Singapore from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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Cheap flights from Ontario to Singapore from $377

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 12/1. 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

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Filter for what you want

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Find the cheapest flights from Ontario to Singapore

Cheap round-trip flights

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China Airlines flights from Ontario to Singapore

Our best China Airlines deals on Ontario to Singapore flight tickets

Korean Air flights from Ontario to Singapore

Our best Korean Air 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

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

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 $862. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,054.

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 Changi?

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

What airlines fly to Singapore?

Which airport is the most popular layover for flights between Ontario and Singapore?

Taipei City (TPE) was the most common stop: 56% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ontario to Singapore?

Flights via San Francisco (SFO) offer the lowest average round-trip price of $1,236.

Which layover airport has the shortest travel time from Ontario to Singapore?

Flights connecting via Taipei City (TPE) have the shortest average one-way travel time: 22h 27m.

Which layover airport has the shortest connection time from Ontario to Singapore?

Taipei City (TPE) has the shortest average layover time for this route: 2h 32m.

When to book flights from Ontario to Singapore

Cheap Ontario to Singapore (ONT to SIN) flight deals and tips

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

Direct flights

How far is Ontario to Singapore Changi by plane?

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

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

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

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

What is the most popular airline from Ontario 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

Fly your favorite airline to Singapore

Airlines are sorted and displayed according to clicks in the past 7 days on momondo