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Cheap flights from Ontario to Singapore from $316

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 3/16. 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
7:30 am - 12:10 am
ONT
-
SIN
24h 40m
2 stops
Delta Logo
1:35 am - 10:37 pm
SIN
-
ONT
37h 02m
2 stops
$690Delta
Mon, Feb 16 - Sat, Feb 28
Korean Air Logo
7:00 am - 5:00 am
ONT
-
SIN
31h 00m
2 stops
Korean Air Logo
7:30 am - 5:10 pm
SIN
-
ONT
24h 40m
2 stops
$733Korean Air
Sun, May 3 - Thu, May 14
Delta Logo
3:30 pm - 12:10 am
ONT
-
SIN
40h 40m
2 stops
Delta Logo
10:40 am - 11:49 pm
SIN
-
ONT
29h 09m
2 stops
$734Delta
Sun, Mar 1 - Fri, Mar 6
Delta Logo
6:00 am - 8:25 pm
ONT
-
SIN
46h 25m
2 stops
Delta Logo
10:30 pm - 10:37 pm
SIN
-
ONT
40h 07m
2 stops
$778Delta
Thu, Feb 26 - Wed, Mar 4
Delta Logo
1:10 pm - 12:10 am
ONT
-
SIN
43h 00m
2 stops
Delta Logo
10:30 pm - 10:37 pm
SIN
-
ONT
40h 07m
2 stops
$784Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
7:30 am - 12:10 am
ONT
-
SIN
24h 40m
2 stops
Delta Logo
10:40 am - 1:54 pm
SIN
-
ONT
43h 14m
2 stops
$785Delta
Mon, Feb 16 - Thu, Feb 26
United Airlines Logo
6:49 pm - 6:45 am
ONT
-
SIN
20h 56m
1 stop
United Airlines Logo
9:00 am - 12:14 pm
SIN
-
ONT
18h 14m
1 stop
$797United Airlines
Sun, Mar 29 - Tue, Apr 14
United Airlines Logo
6:37 pm - 8:00 am
ONT
-
SIN
21h 23m
1 stop
United Airlines Logo
10:10 am - 12:48 pm
SIN
-
ONT
18h 38m
1 stop
$801United Airlines
Mon, Feb 16 - Wed, Mar 4
United Airlines Logo
6:10 am - 8:15 pm
ONT
-
SIN
22h 05m
1 stop
United Airlines Logo
10:10 am - 12:48 pm
SIN
-
ONT
18h 38m
1 stop
$805United Airlines
Mon, Feb 16 - Wed, Mar 4
Multiple Airlines Logo
1:27 pm - 6:45 am
ONT
-
SIN
26h 18m
1 stop
Multiple Airlines Logo
9:00 am - 12:22 pm
SIN
-
ONT
18h 22m
1 stop
$808Multiple Airlines
Tue, Apr 28 - Sun, May 10

United Airlines flights from Ontario to Singapore

Our best United Airlines deals on Ontario to Singapore flight tickets
United Airlines
Mar 29
ONT6:49 pmOntario
20h 56m
1 stop
SIN6:45 amSingapore Changi
Apr 14
SIN9:00 amSingapore Changi
18h 14m
1 stop
ONT12:14 pmOntario
$797
United Airlines
Feb 16
ONT6:37 pmOntario
21h 23m
1 stop
SIN8:00 amSingapore Changi
Mar 4
SIN10:10 amSingapore Changi
18h 38m
1 stop
ONT12:48 pmOntario
$801
United Airlines
Feb 8
ONT6:00 amOntario
22h 15m
1 stop
SIN8:15 pmSingapore Changi
Feb 13
SIN10:10 amSingapore Changi
18h 28m
1 stop
ONT12:38 pmOntario
$814

China Airlines flights from Ontario to Singapore

Our best China Airlines deals on Ontario to Singapore flight tickets
China Airlines
Apr 29
ONT12:10 amOntario
21h 25m
1 stop
SIN12:35 pmSingapore Changi
May 9
SIN1:45 pmSingapore Changi
19h 15m
1 stop
ONT6:00 pmOntario
$916
China Airlines
Feb 16
ONT10:50 pmOntario
22h 15m
1 stop
SIN1:05 pmSingapore Changi
Mar 4
SIN2:25 pmSingapore Changi
18h 25m
1 stop
ONT4:50 pmOntario
$1,015
China Airlines
Feb 15
ONT10:50 pmOntario
22h 15m
1 stop
SIN1:05 pmSingapore Changi
Feb 27
SIN2:25 pmSingapore Changi
18h 25m
1 stop
ONT4:50 pmOntario
$1,049

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 February 2, 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 2/16

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Sat 2/28

1:35 am-10:37 pm

2 stops37h 02m

$690

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 5/3

7:00 am-5:00 am

2 stops31h 00m

Singapore Changi

Thu 5/14

7:30 am-5:10 pm

2 stops24h 40m

$733

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 3/1

3:30 pm-12:10 am

2 stops40h 40m

Singapore Changi

Fri 3/6

10:40 am-11:49 pm

2 stops29h 09m

$734

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 2/26

6:00 am-8:25 pm

2 stops46h 25m

Singapore Changi

Wed 3/4

10:30 pm-10:37 pm

2 stops40h 07m

$778

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 2/25

1:10 pm-12:10 am

2 stops43h 00m

Singapore Changi

Wed 3/4

10:30 pm-10:37 pm

2 stops40h 07m

$784

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/16

7:30 am-12:10 am

2 stops24h 40m

Singapore Changi

Thu 2/26

10:40 am-1:54 pm

2 stops43h 14m

$785

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 3/29

6:49 pm-6:45 am

1 stop20h 56m

Singapore Changi

Tue 4/14

9:00 am-12:14 pm

1 stop18h 14m

$797

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/16

6:37 pm-8:00 am

1 stop21h 23m

Singapore Changi

Wed 3/4

10:10 am-12:48 pm

1 stop18h 38m

$801

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 2/16

6:10 am-8:15 pm

1 stop22h 05m

Singapore Changi

Wed 3/4

10:10 am-12:48 pm

1 stop18h 38m

$805

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 4/28

1:27 pm-6:45 am

1 stop26h 18m

Singapore Changi

Sun 5/10

9:00 am-12:22 pm

1 stop18h 22m

$808

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 $824. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,012.

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 $886. 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 22m

Direct flights

None
The fastest flight from Ontario to Singapore takes 20h 22m
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 22m 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
9,220 reviews
Search United Airlines flights
China AirlinesPriceFrom $964Free CancellationRating
8.3
803 reviews
Search China Airlines flights
STARLUX AirlinesPriceFrom $981Free CancellationRating
8.9
269 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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