Find flights
Airlines

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 15-5. 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
5 May — 12 May1
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 30 April 2025.

Cheapest airline

Singapore Airlines

Good round-trip deal

S$ 359 or less

Good one-way deal

S$ 752 or less
On average, Singapore Airlines currently has the cheapest one-way flight from Ontario (avg. price of S$ 1,956).
Search Deals
Price to beat on a round-trip flight from Ontario.
Search Deals
Price to beat on a one-way flight from Ontario.
Search Deals

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 30 April 2025.

Thu 23-1007:00ONT - SIN
2 stops31h 00mKorean Air
Wed 29-1022:30SIN - ONT
2 stops33h 47mKorean Air
Deal found 27-4S$ 956
Fri 17-1007:00ONT - SIN
2 stops25h 40mDelta
Thu 6-1111:00SIN - ONT
2 stops22h 17mDelta
Deal found 27-4S$ 1,065
Sat 23-806:00ONT - SIN
1 stop21h 25mUnited Airlines
Wed 10-908:45SIN - ONT
1 stop26h 48mUnited Airlines
Deal found 29-4S$ 1,132
Tue 9-906:00ONT - SIN
2 stops27h 20mJapan Airlines
Mon 15-901:55SIN - ONT
2 stops31h 33mJapan Airlines
Deal found 28-4S$ 1,166
Wed 22-1000:10ONT - SIN
1 stop21h 25mChina Airlines
Wed 29-1014:15SIN - ONT
1 stop18h 35mChina Airlines
Deal found 27-4S$ 1,194
Thu 23-1018:55ONT - SIN
1 stop31h 40mSingapore Airlines
Tue 28-1009:00SIN - ONT
1 stop28h 37mSingapore Airlines
Deal found 28-4S$ 1,259
Thu 23-1007:00ONT - SIN
2 stops31h 00mMultiple Airlines
Tue 28-1014:15SIN - ONT
1 stop18h 35mMultiple Airlines
Deal found 28-4S$ 1,308
Sat 20-923:10ONT - SIN
1 stop22h 30mSTARLUX Airlines
Sat 27-914:00SIN - ONT
1 stop18h 05mSTARLUX Airlines
Deal found 28-4S$ 1,392
Sun 31-806:00ONT - SIN
2 stops42h 45mQatar Airways
Fri 19-903:10SIN - ONT
2 stops35h 49mQatar Airways
Deal found 29-4S$ 1,647

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 30 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

Thu 23-10

07:00-05:00

2 stops31h 00m

Singapore Changi

Wed 29-10

22:30-17:17

2 stops33h 47m

S$ 956

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Fri 17-10

07:00-23:40

2 stops25h 40m

Singapore Changi

Thu 6-11

11:00-17:17

2 stops22h 17m

S$ 1,065

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 23-8

06:00-18:25

1 stop21h 25m

Singapore Changi

Wed 10-9

08:45-20:33

1 stop26h 48m

S$ 1,132

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 9-9

06:00-00:20

2 stops27h 20m

Singapore Changi

Mon 15-9

01:55-18:28

2 stops31h 33m

S$ 1,166

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 22-10

00:10-12:35

1 stop21h 25m

Singapore Changi

Wed 29-10

14:15-17:50

1 stop18h 35m

S$ 1,194

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 23-10

18:55-17:35

1 stop31h 40m

Singapore Changi

Tue 28-10

09:00-22:37

1 stop28h 37m

S$ 1,259

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Thu 23-10

07:00-05:00

2 stops31h 00m

Singapore Changi

Tue 28-10

14:15-17:50

1 stop18h 35m

S$ 1,308

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sat 20-9

23:10-12:40

1 stop22h 30m

Singapore Changi

Sat 27-9

14:00-17:05

1 stop18h 05m

S$ 1,392

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 31-8

06:00-15:45

2 stops42h 45m

Singapore Changi

Fri 19-9

03:10-23:59

2 stops35h 49m

S$ 1,647

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 3-9

07:00-23:40

2 stops25h 40m

S$ 497

Flights are sorted by cheapest return flights first.

Deals found on 28-4

Showing 1-10 of 18 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$ 754). Flying from Ontario in June will prove the most costly (average of S$ 1,065). 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: Seattle (129 flights per day), Dallas (129 flights per day) and San Francisco (87 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$ 359. 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

Entertainment

9.0

Crew

9.3

Food

8.9

Boarding

9.0

Comfort

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Crew

9.3

Food

8.9

Boarding

9.0

Comfort

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
EVA Air
8.4
Very Good
1,186 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Crew

9.3

Food

8.9

Boarding

9.0

Comfort

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Korean Air
8.4
Very Good
1,066 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Crew

9.3

Food

8.9

Boarding

9.0

Comfort

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very Good
1,459 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Crew

9.3

Food

8.9

Boarding

9.0

Comfort

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very Good
732 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Crew

9.3

Food

8.9

Boarding

9.0

Comfort

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 30 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$ 359 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 556 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 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$ 956 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights