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Cheap flights from Ontario to Singapore from $313

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 3/2. 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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Find the cheapest flights from Ontario to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 12:10 am
ONT
-
SIN
27h 10m
2 stops
Delta Logo
10:40 am - 10:34 pm
SIN
-
ONT
26h 54m
2 stops
$650Delta
Mon, Mar 9 - Wed, Mar 18
Delta Logo
5:53 pm - 12:10 am
ONT
-
SIN
39h 17m
2 stops
Delta Logo
10:40 am - 10:34 pm
SIN
-
ONT
26h 54m
2 stops
$656Delta
Sun, Mar 8 - Tue, Mar 17
Delta Logo
6:00 am - 12:10 am
ONT
-
SIN
26h 10m
2 stops
Delta Logo
1:35 am - 10:37 pm
SIN
-
ONT
37h 02m
2 stops
$689Delta
Mon, Feb 16 - Thu, Feb 26
Korean Air Logo
6:00 am - 12:10 am
ONT
-
SIN
27h 10m
2 stops
Korean Air Logo
10:40 am - 10:34 pm
SIN
-
ONT
26h 54m
2 stops
$720Korean Air
Mon, Mar 9 - Wed, Mar 18
Korean Air Logo
7:00 am - 5:00 am
ONT
-
SIN
31h 00m
2 stops
Korean Air Logo
1:10 am - 5:16 pm
SIN
-
ONT
31h 06m
2 stops
$732Korean Air
Sun, May 3 - Wed, May 20
Delta Logo
7:30 am - 5:00 am
ONT
-
SIN
29h 30m
2 stops
Delta Logo
7:30 am - 5:15 pm
SIN
-
ONT
24h 45m
2 stops
$777Delta
Mon, Mar 2 - Mon, Apr 27
Korean Air Logo
6:00 am - 5:00 am
ONT
-
SIN
32h 00m
2 stops
Korean Air Logo
10:30 pm - 5:13 pm
SIN
-
ONT
33h 43m
2 stops
$783Korean Air
Mon, Mar 30 - Wed, Apr 8
Delta Logo
7:30 am - 5:00 am
ONT
-
SIN
29h 30m
2 stops
Delta Logo
10:40 am - 1:54 pm
SIN
-
ONT
43h 14m
2 stops
$784Delta
Mon, Feb 16 - Thu, Feb 26
Delta Logo
6:00 am - 8:25 pm
ONT
-
SIN
47h 25m
2 stops
Delta Logo
10:30 pm - 11:51 pm
SIN
-
ONT
40h 21m
2 stops
$789Delta
Mon, Mar 9 - Thu, Mar 19
Delta Logo
5:53 pm - 8:25 pm
ONT
-
SIN
59h 32m
2 stops
Delta Logo
10:40 am - 11:18 am
SIN
-
ONT
39h 38m
2 stops
$790Delta
Sun, Mar 8 - Mon, Mar 16

Korean Air flights from Ontario to Singapore

Our best Korean Air deals on Ontario to Singapore flight tickets
Korean Air
Mar 9
ONT6:00 amOntario
27h 10m
2 stops
SIN12:10 amSingapore Changi
Mar 18
SIN10:40 amSingapore Changi
26h 54m
2 stops
ONT10:34 pmOntario
$720
Korean Air
May 3
ONT7:00 amOntario
31h 00m
2 stops
SIN5:00 amSingapore Changi
May 20
SIN1:10 amSingapore Changi
31h 06m
2 stops
ONT5:16 pmOntario
$732
Korean Air
Mar 30
ONT6:00 amOntario
32h 00m
2 stops
SIN5:00 amSingapore Changi
Apr 8
SIN10:30 pmSingapore Changi
33h 43m
2 stops
ONT5:13 pmOntario
$783

United Airlines flights from Ontario to Singapore

Our best United Airlines deals on Ontario to Singapore flight tickets
United Airlines
Mar 16
ONT6:37 pmOntario
21h 23m
1 stop
SIN7:00 amSingapore Changi
Apr 1
SIN9:00 amSingapore Changi
18h 14m
1 stop
ONT12:14 pmOntario
$808
United Airlines
Mar 16
ONT6:37 pmOntario
21h 23m
1 stop
SIN7:00 amSingapore Changi
Apr 1
SIN9:00 amSingapore Changi
18h 14m
1 stop
ONT12:14 pmOntario
$810
United Airlines
Feb 23
ONT1:50 pmOntario
26h 10m
1 stop
SIN8:00 amSingapore Changi
Mar 9
SIN10:10 amSingapore Changi
22h 25m
1 stop
ONT5:35 pmOntario
$813

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 January 29, 2026.
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 3/9

6:00 am-12:10 am

2 stops27h 10m

Singapore Changi

Wed 3/18

10:40 am-10:34 pm

2 stops26h 54m

$650

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 3/8

5:53 pm-12:10 am

2 stops39h 17m

Singapore Changi

Tue 3/17

10:40 am-10:34 pm

2 stops26h 54m

$656

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/16

6:00 am-12:10 am

2 stops26h 10m

Singapore Changi

Thu 2/26

1:35 am-10:37 pm

2 stops37h 02m

$689

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 3/9

6:00 am-12:10 am

2 stops27h 10m

Singapore Changi

Wed 3/18

10:40 am-10:34 pm

2 stops26h 54m

$720

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 5/3

7:00 am-5:00 am

2 stops31h 00m

Singapore Changi

Wed 5/20

1:10 am-5:16 pm

2 stops31h 06m

$732

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 3/2

7:30 am-5:00 am

2 stops29h 30m

Singapore Changi

Mon 4/27

7:30 am-5:15 pm

2 stops24h 45m

$777

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 3/30

6:00 am-5:00 am

2 stops32h 00m

Singapore Changi

Wed 4/8

10:30 pm-5:13 pm

2 stops33h 43m

$783

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/16

7:30 am-5:00 am

2 stops29h 30m

Singapore Changi

Thu 2/26

10:40 am-1:54 pm

2 stops43h 14m

$784

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 3/9

6:00 am-8:25 pm

2 stops47h 25m

Singapore Changi

Thu 3/19

10:30 pm-11:51 pm

2 stops40h 21m

$789

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 3/8

5:53 pm-8:25 pm

2 stops59h 32m

Singapore Changi

Mon 3/16

10:40 am-11:18 am

2 stops39h 38m

$790

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 $828. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,022.

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 $894. 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 $1,305 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 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 46m

Direct flights

None
The fastest flight from Ontario to Singapore takes 20h 46m
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 46m 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
9,215 reviews
Search United Airlines flights
China AirlinesPriceFrom $964Free CancellationRating
8.3
802 reviews
Search China Airlines flights
STARLUX AirlinesPriceFrom $981Free CancellationRating
8.9
268 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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