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Cheap flights from Ontario to Singapore from $363

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 5/5. 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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0 bags

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Delta Logo
7:30 am - 12:10 amONT-SIN
24h 40m2 stops
Delta Logo
10:40 am - 10:34 pmSIN-ONT
26h 54m2 stops
$733Delta
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Mon, Feb 23 - Tue, Mar 24
Korean Air Logo
6:00 am - 11:40 pmONT-SIN
26h 40m2 stops
Korean Air Logo
7:30 am - 5:16 pmSIN-ONT
24h 46m2 stops
$738Korean Air
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Sun, Apr 12 - Sun, Apr 19
American Airlines Logo
7:16 am - 6:35 amONT-SIN
31h 19m2 stops
American Airlines Logo
8:15 am - 6:45 pmSIN-ONT
26h 30m2 stops
$745American Airlines
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Wed, Jan 21 - Fri, Jan 30
American Airlines Logo
6:00 am - 6:35 amONT-SIN
32h 35m2 stops
American Airlines Logo
2:20 am - 5:22 pmSIN-ONT
31h 02m2 stops
$762American Airlines
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Wed, Jan 21 - Thu, Jan 29
United Airlines Logo
1:53 pm - 8:00 amONT-SIN
26h 07m1 stop
United Airlines Logo
10:10 am - 5:43 pmSIN-ONT
23h 33m1 stop
$783United Airlines
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Mon, Jan 12 - Wed, Jan 21
United Airlines Logo
1:24 pm - 8:15 pmONT-SIN
38h 51m2 stops
United Airlines Logo
10:20 pm - 8:58 pmSIN-ONT
38h 38m2 stops
$788United Airlines
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Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
1:53 pm - 8:15 pmONT-SIN
38h 22m1 stop
United Airlines Logo
10:10 am - 5:43 pmSIN-ONT
23h 33m1 stop
$789United Airlines
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Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
1:53 pm - 8:15 pmONT-SIN
38h 22m1 stop
United Airlines Logo
10:10 am - 8:58 pmSIN-ONT
26h 48m2 stops
$793United Airlines
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Tue, Jan 6 - Sat, Jan 17
United Airlines Logo
1:24 pm - 8:15 pmONT-SIN
38h 51m2 stops
United Airlines Logo
10:10 am - 8:58 pmSIN-ONT
26h 48m2 stops
$800United Airlines
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Tue, Jan 6 - Sat, Jan 17
United Airlines Logo
5:10 am - 12:45 amONT-SIN
28h 35m2 stops
United Airlines Logo
8:40 pm - 5:47 pmSIN-ONT
36h 07m1 stop
$801United Airlines
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Sun, Apr 12 - Sun, Apr 19

United Airlines flights from Ontario to Singapore

Our best United Airlines deals on Ontario to Singapore flight tickets
United Airlines
Jan 12
ONT1:53 pmOntario
26h 07m
1 stop
SIN8:00 amSingapore Changi
Jan 21
SIN10:10 amSingapore Changi
23h 33m
1 stop
ONT5:43 pmOntario
$783
Find similar
United Airlines
Dec 2
ONT1:50 pmOntario
26h 10m
1 stop
SIN8:00 amSingapore Changi
Mar 26
SIN10:10 amSingapore Changi
41h 38m
2 stops
ONT12:48 pmOntario
$788
Find similar
United Airlines
Jan 29
ONT1:53 pmOntario
38h 22m
1 stop
SIN8:15 pmSingapore Changi
Feb 2
SIN10:10 amSingapore Changi
23h 33m
1 stop
ONT5:43 pmOntario
$789
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Japan Airlines flights from Ontario to Singapore

Our best Japan Airlines deals on Ontario to Singapore flight tickets
Japan Airlines
Jan 18
ONT6:00 amOntario
26h 50m
2 stops
SIN12:50 amSingapore Changi
Jan 31
SIN8:15 amSingapore Changi
22h 53m
2 stops
ONT3:08 pmOntario
$858
Find similar
Japan Airlines
Dec 2
ONT6:00 amOntario
26h 50m
2 stops
SIN12:50 amSingapore Changi
Dec 9
SIN8:15 amSingapore Changi
26h 18m
2 stops
ONT6:33 pmOntario
$1,303
Find similar
Japan Airlines
Nov 27
ONT6:00 amOntario
26h 50m
2 stops
SIN12:50 amSingapore Changi
Dec 10
SIN8:15 amSingapore Changi
26h 18m
2 stops
ONT6:33 pmOntario
$1,901
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momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Ontario to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/23

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Tue 3/24

10:40 am-10:34 pm

2 stops26h 54m

$733

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 4/12

6:00 am-11:40 pm

2 stops26h 40m

Singapore Changi

Sun 4/19

7:30 am-5:16 pm

2 stops24h 46m

$738

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 1/21

7:16 am-6:35 am

2 stops31h 19m

Singapore Changi

Fri 1/30

8:15 am-6:45 pm

2 stops26h 30m

$745

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 1/21

6:00 am-6:35 am

2 stops32h 35m

Singapore Changi

Thu 1/29

2:20 am-5:22 pm

2 stops31h 02m

$762

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 1/12

1:53 pm-8:00 am

1 stop26h 07m

Singapore Changi

Wed 1/21

10:10 am-5:43 pm

1 stop23h 33m

$783

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 1/29

1:24 pm-8:15 pm

2 stops38h 51m

Singapore Changi

Mon 2/2

10:20 pm-8:58 pm

2 stops38h 38m

$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

Tue 1/6

1:53 pm-8:15 pm

1 stop38h 22m

Singapore Changi

Sat 1/17

10:10 am-8:58 pm

2 stops26h 48m

$793

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 1/6

1:24 pm-8:15 pm

2 stops38h 51m

Singapore Changi

Sat 1/17

10:10 am-8:58 pm

2 stops26h 48m

$800

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 4/12

5:10 am-12:45 am

2 stops28h 35m

Singapore Changi

Sun 4/19

8:40 pm-5:47 pm

1 stop36h 07m

$801

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Singapore from

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 $852. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,052.

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

Fastest flight time

20h 52m

Direct flights

None
The fastest flight from Ontario to Singapore takes 20h 52m
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 21h 25m 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?

  • 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?

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 AirlinesPriceFrom $783Free CancellationRating
7.4
9,049 reviews
Search United Airlines flights
China AirlinesPriceFrom $964Free CancellationRating
8.3
782 reviews
Search China Airlines flights
STARLUX AirlinesPriceFrom $981Free CancellationRating
8.9
235 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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