S$ 115+ Cheap flights from Ontario

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28-4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — SIN
16 Apr — 23 Apr1
1 adult
1 adult, Economy, 0 bags

Find flights from Ontario within your budget

 
Find flights departing from Ontario that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 17 March 2026. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 4-5

06:00-18:35

1 stop21h 35m

Singapore Changi

Thu 7-5

20:35-09:41

1 stop28h 06m

S$ 1,050

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 11-5

13:40-18:35

2 stops37h 55m

Singapore Changi

Sun 17-5

20:35-09:41

1 stop28h 06m

S$ 1,116

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 13-4

07:00-05:00

2 stops31h 00m

Singapore Changi

Wed 22-4

07:30-17:15

2 stops24h 45m

S$ 1,132

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 7-5

06:00-18:35

1 stop21h 35m

Singapore Changi

Sat 16-5

09:00-17:52

1 stop23h 52m

S$ 1,173

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 18-5

06:00-18:35

1 stop21h 35m

Singapore Changi

Tue 26-5

08:45-20:42

2 stops26h 57m

S$ 1,249

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 28-4

13:27-06:45

1 stop26h 18m

Singapore Changi

Tue 5-5

09:00-20:36

2 stops26h 36m

S$ 1,390

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 13-4

06:00-06:40

2 stops33h 40m

Singapore Changi

Wed 22-4

09:00-17:47

1 stop23h 47m

S$ 1,407

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 17-5

06:00-18:35

1 stop21h 35m

Singapore Changi

Fri 26-6

08:45-20:42

2 stops26h 57m

S$ 1,474

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 26-7

07:00-23:55

2 stops25h 55m

Singapore Changi

Mon 10-8

07:30-17:16

2 stops24h 46m

S$ 1,506
Fastest return journey

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 4-5

00:10-12:35

1 stop21h 25m

Singapore Changi

Wed 20-5

11:05-18:00

2 stops21h 55m

S$ 1,510

Flights are sorted by cheapest return flights first.

Deals found on 15-3

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Ontario

Have a flexible travel schedule? Discover the best time to fly from Ontario with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario

Get recent, data-driven insights about flights from Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario?

Currently, September is the cheapest month in which you can book a flight from Ontario (average of S$ 733). Flying from Ontario in June will prove the most costly (average of S$ 984). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from Ontario?

From Ontario you can expect to find greater availability for the following destinations: Dallas (110 flights per day), Phoenix (82 flights per day) and Seattle (71 flights per day).

Denver Intl
Denver Intl
From S$ 121

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Denver Intl, with prices starting at S$ 121. Explore other affordable destinations below.

Denver Intl
Denver Intl
From S$ 121

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Related info for your journey

Access useful and relevant information related to your journey from Ontario. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 17 March 2026.

  • What are the most popular destinations to fly to from Ontario?

    This month, the top selected destinations from Ontario are Las Vegas, Dallas/Fort Worth Airport, Denver. Throughout the year, Las Vegas, Dallas/Fort Worth Airport, Denver are some of the top choices made by users flying from Ontario.

  • What is the cheapest flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as S$ 121 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 192 to fly from Ontario.

  • What is the cheapest month to fly from Ontario?

    Currently, the cheapest month for flights from Ontario is September. The most expensive month for flights is June. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Ontario?

    View the cheapest flight destinations from Ontario:
    Fly from Ontario to Singapore from S$ 940 round trip

  • How does Cheapflights help users find flights from Ontario?

    900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from Ontario today with Cheapflights!

  • Why should you use Cheapflights to find cheap flight tickets from Ontario?

    Cheapflights helps you find that perfect flight from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from Ontario with no change fees?

    Need flexible booking options for your flight from Ontario ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from Ontario become cheaper?

    Yes! Start tracking prices for flights from Ontario today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from Ontario today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ontario?

Cheapflights helps you find that perfect flight from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario with no change fees?

Need flexible booking options for your flight from Ontario ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ontario become cheaper?

Yes! Start tracking prices for flights from Ontario today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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