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

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

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 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 April 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.

$487 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 $985.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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 - 11:55 pm

ONT

SIN

26h 55m

2 stops

7:30 am - 11:44 pm

SIN

ONT

31h 14m

2 stops

$985Delta

Thu, Aug 20 - Thu, Sep 17

12:00 pm - 5:35 pm

ONT

SIN

38h 35m

1 stop

9:00 am - 2:47 pm

SIN

ONT

21h 47m

1 stop

$987Singapore Airlines

Fri, Oct 23 - Sat, Nov 7

12:00 pm - 5:35 pm

ONT

SIN

38h 35m

1 stop

9:00 am - 2:47 pm

SIN

ONT

21h 47m

1 stop

$996Singapore Airlines

Fri, Oct 23 - Sat, Nov 7

7:00 am - 11:55 pm

ONT

SIN

25h 55m

2 stops

7:30 am - 10:40 pm

SIN

ONT

30h 10m

2 stops

$1,035Delta

Sat, Aug 22 - Mon, Sep 21

7:00 am - 5:00 am

ONT

SIN

31h 00m

2 stops

1:35 am - 5:17 pm

SIN

ONT

31h 42m

2 stops

$1,040Korean Air

Mon, Sep 28 - Thu, Nov 5

7:13 pm - 6:15 am

ONT

SIN

20h 02m

1 stop

8:45 am - 6:11 pm

SIN

ONT

24h 26m

1 stop

$1,071United Airlines

Mon, Aug 24 - Mon, Sep 7

6:00 am - 6:35 pm

ONT

SIN

21h 35m

1 stop

8:35 pm - 12:38 pm

SIN

ONT

31h 03m

2 stops

$1,076United Airlines

Thu, Aug 20 - Thu, Sep 17

6:00 am - 12:55 am

ONT

SIN

27h 55m

2 stops

10:10 am - 12:20 pm

SIN

ONT

18h 10m

1 stop

$1,083United Airlines

Mon, Oct 26 - Mon, Nov 9

6:00 am - 12:55 am

ONT

SIN

27h 55m

2 stops

10:10 am - 12:20 pm

SIN

ONT

18h 10m

1 stop

$1,084United Airlines

Mon, Oct 26 - Mon, Nov 9

7:00 am - 5:00 am

ONT

SIN

31h 00m

2 stops

7:30 am - 11:44 pm

SIN

ONT

31h 14m

2 stops

$1,085Delta

Sat, Sep 12 - Fri, Sep 18

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Delta flights from Ontario to Singapore

Our best Delta deals on Ontario to Singapore flight tickets

Delta

Aug 20

ONT6:00 amOntario

26h 55m

2 stops

SIN11:55 pmSingapore Changi

Sep 17

SIN7:30 amSingapore Changi

31h 14m

2 stops

ONT11:44 pmOntario

$985

Delta

Aug 22

ONT7:00 amOntario

25h 55m

2 stops

SIN11:55 pmSingapore Changi

Sep 20

SIN10:00 pmSingapore Changi

39h 40m

2 stops

ONT10:40 pmOntario

$1,035

Delta

May 2

ONT5:59 pmOntario

44h 01m

2 stops

SIN5:00 amSingapore Changi

May 18

SIN1:25 amSingapore Changi

30h 45m

2 stops

ONT5:10 pmOntario

$1,041

United Airlines flights from Ontario to Singapore

Our best United Airlines deals on Ontario to Singapore flight tickets

United Airlines

Aug 24

ONT7:13 pmOntario

20h 02m

1 stop

SIN6:15 amSingapore Changi

Sep 7

SIN8:45 amSingapore Changi

24h 26m

1 stop

ONT6:11 pmOntario

$1,071

United Airlines

Aug 20

ONT6:00 amOntario

21h 35m

1 stop

SIN6:35 pmSingapore Changi

Sep 17

SIN8:35 pmSingapore Changi

31h 03m

2 stops

ONT12:38 pmOntario

$1,076

United Airlines

Oct 26

ONT6:00 amOntario

27h 55m

2 stops

SIN12:55 amSingapore Changi

Nov 9

SIN10:10 amSingapore Changi

18h 10m

1 stop

ONT12:20 pmOntario

$1,083

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 8/20

6:00 am-11:55 pm

2 stops26h 55m

Singapore Changi

Thu 9/17

7:30 am-11:44 pm

2 stops31h 14m

$985

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 10/23

12:00 pm-5:35 pm

1 stop38h 35m

Singapore Changi

Sat 11/7

9:00 am-2:47 pm

1 stop21h 47m

$987

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 10/23

12:00 pm-5:35 pm

1 stop38h 35m

Singapore Changi

Sat 11/7

9:00 am-2:47 pm

1 stop21h 47m

$996

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 8/22

7:00 am-11:55 pm

2 stops25h 55m

Singapore Changi

Mon 9/21

7:30 am-10:40 pm

2 stops30h 10m

$1,035

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 9/28

7:00 am-5:00 am

2 stops31h 00m

Singapore Changi

Thu 11/5

1:35 am-5:17 pm

2 stops31h 42m

$1,040

Quickest round-trip

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 8/24

7:13 pm-6:15 am

1 stop20h 02m

Singapore Changi

Mon 9/7

8:45 am-6:11 pm

1 stop24h 26m

$1,071

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 8/20

6:00 am-6:35 pm

1 stop21h 35m

Singapore Changi

Thu 9/17

8:35 pm-12:38 pm

2 stops31h 03m

$1,076

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 10/26

6:00 am-12:55 am

2 stops27h 55m

Singapore Changi

Mon 11/9

10:10 am-12:20 pm

1 stop18h 10m

$1,083

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 10/26

6:00 am-12:55 am

2 stops27h 55m

Singapore Changi

Mon 11/9

10:10 am-12:20 pm

1 stop18h 10m

$1,084

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 9/12

7:00 am-5:00 am

2 stops31h 00m

Singapore Changi

Fri 9/18

7:30 am-11:44 pm

2 stops31h 14m

$1,085

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 $777. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $871.

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 $818. 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 $1,225 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 14% 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 02m
Direct flights	None

The fastest flight from Ontario to Singapore takes 20h 02m

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 02m 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 April 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 (40% of total bookings). The next most popular airlines are United Airlines (39%) 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 9,677 reviews	Search United Airlines flights
China Airlines	PriceFrom $958	Free Cancellation	Rating 8.3 819 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $981	Free Cancellation	Rating 8.9 304 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.