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 has the shortest travel time from Ontario to Singapore?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 22h 11m.

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 39m.

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 $1,279.

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 16 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 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 August 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.

$377 Cheap Flights from Ontario to Singapore in 2025

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Find the cheapest flights from Ontario to Singapore

Round-trip

One-way

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Cheap round-trip flights

1:53 pm - 8:15 pmONT-SIN

38h 22m1 stop

10:10 am - 5:43 pmSIN-ONT

23h 33m1 stop

$766United Airlines

Find Deal

Sat, Jan 17 - Tue, Feb 10

6:39 pm - 8:00 amONT-SIN

21h 21m1 stop

10:10 am - 12:14 pmSIN-ONT

18h 04m1 stop

$775United Airlines

Find Deal

Sun, Feb 1 - Sun, Feb 8

6:36 pm - 6:15 amONT-SIN

20h 39m1 stop

8:45 am - 5:40 pmSIN-ONT

23h 55m1 stop

$784United Airlines

Find Deal

Mon, Sep 29 - Mon, Oct 6

6:40 am - 5:00 amONT-SIN

30h 20m2 stops

1:35 am - 5:07 pmSIN-ONT

31h 32m2 stops

$809Korean Air

Find Deal

Wed, Dec 3 - Sun, Dec 7

12:10 am - 5:10 pmONT-SIN

26h 00m2 stops

1:45 am - 6:00 pmSIN-ONT

31h 15m2 stops

$927

Find Deal

Mon, Oct 6 - Fri, Oct 10

6:45 am - 12:10 amONT-SIN

25h 25m2 stops

1:35 am - 3:20 pmSIN-ONT

29h 45m2 stops

$929Korean Air

Find Deal

Sun, Feb 1 - Sat, Feb 7

12:10 am - 5:10 pmONT-SIN

26h 00m2 stops

11:00 am - 6:00 pmSIN-ONT

22h 00m2 stops

$952

Find Deal

Mon, Oct 6 - Sat, Oct 11

10:50 pm - 12:40 amONT-SIN

33h 50m1 stop

2:00 am - 4:50 pmSIN-ONT

30h 50m1 stop

$968China Airlines

Find Deal

Mon, Feb 9 - Sun, Feb 15

12:10 am - 12:35 amONT-SIN

33h 25m1 stop

2:00 am - 6:00 pmSIN-ONT

31h 00m1 stop

$971China Airlines

Find Deal

Sun, Oct 5 - Sat, Oct 18

11:10 pm - 12:40 pmONT-SIN

22h 30m1 stop

2:00 pm - 5:05 pmSIN-ONT

18h 05m1 stop

$1,046STARLUX Airlines

Find Deal

Mon, Sep 22 - Mon, Sep 29

United Airlines flights from Ontario to Singapore

Our best United Airlines deals on Ontario to Singapore flight tickets

United Airlines

Jan 17

ONT1:53 pmOntario

38h 22m

1 stop

SIN8:15 pmSingapore Changi

Feb 10

SIN10:10 amSingapore Changi

23h 33m

1 stop

ONT5:43 pmOntario

$766

Find similar

United Airlines

Sep 7

ONT6:50 pmOntario

20h 25m

1 stop

SIN6:15 amSingapore Changi

Sep 21

SIN8:45 amSingapore Changi

18h 28m

1 stop

ONT12:13 pmOntario

$767

Find similar

United Airlines

Feb 1

ONT6:39 pmOntario

21h 21m

1 stop

SIN8:00 amSingapore Changi

Feb 8

SIN10:10 amSingapore Changi

18h 04m

1 stop

ONT12:14 pmOntario

$775

Find similar

Korean Air flights from Ontario to Singapore

Our best Korean Air deals on Ontario to Singapore flight tickets

Korean Air

Dec 3

ONT6:40 amOntario

30h 20m

2 stops

SIN5:00 amSingapore Changi

Dec 7

SIN1:35 amSingapore Changi

31h 32m

2 stops

ONT5:07 pmOntario

$809

Find similar

Korean Air

Feb 1

ONT6:45 amOntario

25h 25m

2 stops

SIN12:10 amSingapore Changi

Feb 7

SIN1:35 amSingapore Changi

29h 45m

2 stops

ONT3:20 pmOntario

$929

Find similar

Korean Air

Jan 4

ONT6:45 amOntario

25h 25m

2 stops

SIN12:10 amSingapore Changi

Jan 24

SIN1:35 amSingapore Changi

29h 45m

2 stops

ONT3:20 pmOntario

$994

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 1/17

1:53 pm-8:15 pm

1 stop38h 22m

Singapore Changi

Tue 2/10

10:10 am-5:43 pm

1 stop23h 33m

$766

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 2/1

6:39 pm-8:00 am

1 stop21h 21m

Singapore Changi

Sun 2/8

10:10 am-12:14 pm

1 stop18h 04m

$775

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 9/29

6:36 pm-6:15 am

1 stop20h 39m

Singapore Changi

Mon 10/6

8:45 am-5:40 pm

1 stop23h 55m

$784

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 12/3

6:40 am-5:00 am

2 stops30h 20m

Singapore Changi

Sun 12/7

1:35 am-5:07 pm

2 stops31h 32m

$809

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 10/6

12:10 am-5:10 pm

2 stops26h 00m

Singapore Changi

Fri 10/10

1:45 am-6:00 pm

2 stops31h 15m

$927

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 2/1

6:45 am-12:10 am

2 stops25h 25m

Singapore Changi

Sat 2/7

1:35 am-3:20 pm

2 stops29h 45m

$929

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 10/6

12:10 am-5:10 pm

2 stops26h 00m

Singapore Changi

Sat 10/11

11:00 am-6:00 pm

2 stops22h 00m

$952

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/9

10:50 pm-12:40 am

1 stop33h 50m

Singapore Changi

Sun 2/15

2:00 am-4:50 pm

1 stop30h 50m

$968

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 10/5

12:10 am-12:35 am

1 stop33h 25m

Singapore Changi

Sat 10/18

2:00 am-6:00 pm

1 stop31h 00m

$971

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 9/22

11:10 pm-12:40 pm

1 stop22h 30m

Singapore Changi

Mon 9/29

2:00 pm-5:05 pm

1 stop18h 05m

$1,046

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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 $892. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,093.

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 $977. 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 $1,859 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.

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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 39m 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 August 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 China Airlines (46% of total bookings). The next most popular airlines are United Airlines (42%) and STARLUX Airlines (12%).

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 $887	Free Cancellation	Rating 7.4 8,941 reviews	Search United Airlines flights
China Airlines	PriceFrom $964	Free Cancellation	Rating 8.3 765 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $1,351	Free Cancellation	Rating 8.9 211 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?

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.

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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 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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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United Airlines flights from Ontario to Singapore

Our best United 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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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 $892. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,093.

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 $1,279.

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

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 22h 11m.

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 39m.

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