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

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

What airlines fly to Singapore?

Singapore Airlines, United Airlines and Asiana Airlines 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 66% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 15 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 May 2026.

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.

$420 Cheap Flights from Ontario to Singapore in 2026

Q: What is the typical price of a round-trip flight between Ontario and Singapore?

Prices are currently low for flights on this route. Typical prices usually range from $1,514 to $1,129. The lowest price recently found on this route was $835.

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Find the cheapest flights from Ontario to Singapore

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 5:00 am

ONT

SIN

32h 00m

2 stops

7:30 am - 10:40 pm

SIN

ONT

30h 10m

2 stops

$835Delta

Thu, Aug 20 - Thu, Sep 17

7:00 am - 11:55 pm

ONT

SIN

25h 55m

2 stops

10:40 am - 5:17 pm

SIN

ONT

45h 37m

2 stops

$840Korean Air

Thu, Oct 22 - Mon, Oct 26

6:53 pm - 7:00 am

ONT

SIN

21h 07m

1 stop

10:10 am - 12:20 pm

SIN

ONT

18h 10m

1 stop

$873United Airlines

Sun, Oct 25 - Tue, Nov 10

7:13 pm - 6:15 am

ONT

SIN

20h 02m

1 stop

8:45 am - 6:11 pm

SIN

ONT

24h 26m

1 stop

$874United Airlines

Thu, Aug 20 - Thu, Sep 17

6:00 am - 6:35 pm

ONT

SIN

21h 35m

1 stop

8:45 am - 8:53 pm

SIN

ONT

27h 08m

2 stops

$878United Airlines

Thu, Aug 20 - Thu, Sep 17

7:13 pm - 6:15 am

ONT

SIN

20h 02m

1 stop

8:45 am - 10:58 pm

SIN

ONT

29h 13m

1 stop

$879United Airlines

Thu, Sep 3 - Sun, Sep 13

6:00 am - 6:35 pm

ONT

SIN

21h 35m

1 stop

11:05 am - 10:58 pm

SIN

ONT

26h 53m

2 stops

$883United Airlines

Thu, Aug 20 - Thu, Sep 17

6:05 am - 12:45 am

ONT

SIN

27h 40m

2 stops

10:10 am - 11:06 pm

SIN

ONT

27h 56m

1 stop

$886United Airlines

Thu, Oct 22 - Mon, Oct 26

6:00 am - 6:55 am

ONT

SIN

32h 55m

2 stops

10:10 am - 8:20 pm

SIN

ONT

26h 10m

2 stops

$887United Airlines

Tue, Nov 10 - Thu, Nov 26

5:00 am - 8:00 am

ONT

SIN

35h 00m

2 stops

10:10 am - 12:33 pm

SIN

ONT

42h 23m

2 stops

$890United Airlines

Wed, Nov 11 - Wed, Nov 25

Singapore Airlines flights from Ontario to Singapore

Our best Singapore Airlines deals on Ontario to Singapore flight tickets

Singapore Airlines

Nov 6

ONT7:10 pmOntario

30h 35m

1 stop

SIN5:45 pmSingapore Changi

Nov 21

SIN9:00 amSingapore Changi

29h 39m

1 stop

ONT10:39 pmOntario

$984

Singapore Airlines

Nov 9

ONT7:10 pmOntario

30h 35m

1 stop

SIN5:45 pmSingapore Changi

Dec 1

SIN9:00 amSingapore Changi

21h 47m

1 stop

ONT2:47 pmOntario

$1,171

Korean Air flights from Ontario to Singapore

Our best Korean Air deals on Ontario to Singapore flight tickets

Korean Air

Oct 22

ONT7:00 amOntario

25h 55m

2 stops

SIN11:55 pmSingapore Changi

Oct 26

SIN10:40 amSingapore Changi

45h 37m

2 stops

ONT5:17 pmOntario

$840

Korean Air

Sep 24

ONT7:00 amOntario

25h 55m

2 stops

SIN11:55 pmSingapore Changi

Oct 8

SIN7:30 amSingapore Changi

24h 47m

2 stops

ONT5:17 pmOntario

$942

Korean Air

Nov 12

ONT7:00 amOntario

30h 00m

2 stops

SIN5:00 amSingapore Changi

Dec 2

SIN10:30 pmSingapore Changi

34h 47m

2 stops

ONT5:17 pmOntario

$966

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 8/20

6:00 am-5:00 am

2 stops32h 00m

Singapore Changi

Thu 9/17

7:30 am-10:40 pm

2 stops30h 10m

$835

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 10/22

7:00 am-11:55 pm

2 stops25h 55m

Singapore Changi

Mon 10/26

10:40 am-5:17 pm

2 stops45h 37m

$840

Quickest round-trip

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 10/25

6:53 pm-7:00 am

1 stop21h 07m

Singapore Changi

Tue 11/10

10:10 am-12:20 pm

1 stop18h 10m

$873

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 8/20

7:13 pm-6:15 am

1 stop20h 02m

Singapore Changi

Thu 9/17

8:45 am-6:11 pm

1 stop24h 26m

$874

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 8/20

6:00 am-6:35 pm

1 stop21h 35m

Singapore Changi

Thu 9/17

8:45 am-8:53 pm

2 stops27h 08m

$878

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 9/3

7:13 pm-6:15 am

1 stop20h 02m

Singapore Changi

Sun 9/13

8:45 am-10:58 pm

1 stop29h 13m

$879

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 8/20

6:00 am-6:35 pm

1 stop21h 35m

Singapore Changi

Thu 9/17

11:05 am-10:58 pm

2 stops26h 53m

$883

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 10/22

6:05 am-12:45 am

2 stops27h 40m

Singapore Changi

Mon 10/26

10:10 am-11:06 pm

1 stop27h 56m

$886

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 11/10

6:00 am-6:55 am

2 stops32h 55m

Singapore Changi

Thu 11/26

10:10 am-8:20 pm

2 stops26h 10m

$887

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 11/11

5:00 am-8:00 am

2 stops35h 00m

Singapore Changi

Wed 11/25

10:10 am-12:33 pm

2 stops42h 23m

$890

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 typical price of a round-trip flight between Ontario and Singapore?

What is the cheapest month to fly to Singapore?

The month of March is, on average, the cheapest month to fly to Singapore from Ontario, with most prices found around $847. If you aren’t able to travel to Singapore during the month of March, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $887.

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

The cheapest day to depart from Ontario to Singapore is on a Sunday when prices can be found for as low as $776. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $870.

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 $816. 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 at noon when prices are $1,224 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 48% 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

Fastest flight time	20h 50m
Direct flights	None

The fastest flight from Ontario to Singapore takes 20h 50m

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

Search flight deals

Frequently asked questions about flying from Ontario to Singapore

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 50m 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 May 2026.
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 (43% of total bookings). The next most popular airlines are United Airlines (37%) and STARLUX Airlines (20%).

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 9,736 reviews	Search United Airlines flights
China Airlines	PriceFrom $958	Free Cancellation	Rating 8.3 826 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $981	Free Cancellation	Rating 8.9 316 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.