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S$ 75+ 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 2-5. 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
20 Apr — 27 Apr1
1 adult

What to know about flights from Ontario

Discover essential information about flights departing from Ontario, including flight schedules, destinations, airlines operating at the Ontario airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 15 April 2025.

Cheapest airline

Singapore Airlines

Good round-trip deal

S$ 361 or less

Good one-way deal

S$ 757 or less
On average, Singapore Airlines currently has the cheapest one-way flight from Ontario (avg. price of S$ 2,064).
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Price to beat on a round-trip flight from Ontario.
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Price to beat on a one-way flight from Ontario.
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Find flights from Ontario

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 15 April 2025.

Mon 1-907:00ONT - SIN
2 stops25h 40mKorean Air
Fri 12-907:30SIN - ONT
2 stops24h 47mKorean Air
Deal found 14-4S$ 1,030
Mon 19-506:00ONT - SIN
1 stop21h 25mUnited Airlines
Tue 3-608:45SIN - ONT
1 stop18h 29mUnited Airlines
Deal found 14-4S$ 1,168
Mon 11-800:45ONT - SIN
1 stop32h 50mChina Airlines
Tue 26-813:45SIN - ONT
1 stop19h 55mChina Airlines
Deal found 14-4S$ 1,195
Mon 1-923:10ONT - SIN
1 stop22h 30mSTARLUX Airlines
Mon 8-914:00SIN - ONT
1 stop18h 05mSTARLUX Airlines
Deal found 14-4S$ 1,371
Sun 4-500:10ONT - SIN
2 stops30h 05mMultiple Airlines
Thu 22-507:05SIN - ONT
2 stops25h 55mMultiple Airlines
Deal found 14-4S$ 1,437
Mon 5-505:45ONT - SIN
2 stops26h 55mDelta
Thu 15-507:30SIN - ONT
2 stops25h 50mDelta
Deal found 14-4S$ 1,522
Sun 4-522:40ONT - SIN
2 stops44h 00mEtihad Airways
Tue 20-521:10SIN - ONT
2 stops39h 01mEtihad Airways
Deal found 13-4S$ 1,629
Sun 7-906:00ONT - SIN
2 stops36h 00mQatar Airways
Fri 19-903:10SIN - ONT
2 stops30h 13mQatar Airways
Deal found 15-4S$ 1,648

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 15 April 2025. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Singapore

Route

Depart

Return

Price

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 1-9

07:00-23:40

2 stops25h 40m

Singapore Changi

Fri 12-9

07:30-17:17

2 stops24h 47m

S$ 1,030

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 19-5

06:00-18:25

1 stop21h 25m

Singapore Changi

Tue 3-6

08:45-12:14

1 stop18h 29m

S$ 1,168

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 11-8

00:45-00:35

1 stop32h 50m

Singapore Changi

Tue 26-8

13:45-18:40

1 stop19h 55m

S$ 1,195

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 1-9

23:10-12:40

1 stop22h 30m

Singapore Changi

Fri 12-9

14:00-17:05

1 stop18h 05m

S$ 1,371

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 4-5

00:10-21:15

2 stops30h 05m

Singapore Changi

Mon 19-5

07:05-18:00

2 stops25h 55m

S$ 1,437

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 5-5

05:45-23:40

2 stops26h 55m

Singapore Changi

Thu 15-5

07:30-18:20

2 stops25h 50m

S$ 1,522

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 4-5

22:40-09:40

2 stops44h 00m

Singapore Changi

Tue 20-5

21:10-21:11

2 stops39h 01m

S$ 1,629

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 7-9

06:00-09:00

2 stops36h 00m

Singapore Changi

Fri 19-9

03:10-18:23

2 stops30h 13m

S$ 1,648

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 27-8

07:00-23:40

2 stops25h 40m

S$ 499

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Mon 25-8

07:00-23:40

2 stops25h 40m

S$ 597

Flights are sorted by cheapest return flights first.

Deals found on 14-4

Showing 1-10 of 16 results
1
2

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, February is the cheapest month in which you can book a flight from Ontario (average of S$ 756). Flying from Ontario in July will prove the most costly (average of S$ 1,152). 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 (125 flights per day), Seattle (121 flights per day) and San Francisco (82 flights per day).

Denver Intl

Denver Intl

From S$ 274

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$ 361. Explore other affordable destinations below.

Denver Intl

Denver Intl

From S$ 274

Airline reviews for flights from Ontario

Get insights into the airlines that provide service from Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Ontario. In the last 7 days, Cheapflights users made a total of 200,618 searches.
STARLUX Airlines
9.1
Wonderful
Check prices

Crew

9.3

Overall

9.1

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
STARLUX Airlines
9.1
Wonderful
STARLUX Airlines
9.1
Wonderful
Check prices

Crew

9.3

Overall

9.1

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
EVA Air
8.4
Very Good
1,176 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Crew

9.3

Overall

9.1

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Korean Air
8.4
Very Good
1,063 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Crew

9.3

Overall

9.1

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
China Airlines
8.2
Very Good
729 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Crew

9.3

Overall

9.1

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Delta
8.0
Very Good
7,916 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Crew

9.3

Overall

9.1

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Browse thousands of different options on Cheapflights for your next trip

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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 15 April 2025.

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

    This month, the top selected destinations from Ontario are Dallas/Fort Worth Airport, Denver, Honolulu. Throughout the year, Denver, Dallas/Fort Worth Airport, Guadalajara 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$ 361 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 559 to fly from Ontario.

  • What is the cheapest month to fly from Ontario?

    Currently, the cheapest month for flights from Ontario is February. The most expensive month for flights is July. 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$ 1,017 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.

See more FAQs

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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