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S$ 78+ 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 12-3. 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
26 Feb — 5 Mar1
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 21 February 2025.

Cheapest airline

Alaska Airlines

Good one-way deal

S$ 769 or less
On average, Alaska Airlines currently has the cheapest one-way flight from Ontario (avg. price of S$ 488).
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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 21 February 2025.

Tue 15-407:05ONT - SIN
1 stop20h 20mUnited Airlines
Tue 22-409:00SIN - ONT
1 stop20h 50mUnited Airlines
Deal found 20-2S$ 1,187
Wed 5-306:00ONT - SIN
2 stops26h 10mKorean Air
Wed 12-322:30SIN - ONT
2 stops33h 12mKorean Air
Deal found 19-2S$ 1,280
Tue 15-405:45ONT - SIN
2 stops26h 55mMultiple Airlines
Wed 23-401:10SIN - ONT
2 stops30h 33mMultiple Airlines
Deal found 20-2S$ 1,306
Tue 22-400:10ONT - SIN
1 stop33h 25mChina Airlines
Tue 6-513:45SIN - ONT
1 stop19h 15mChina Airlines
Deal found 20-2S$ 1,356
Sun 16-305:40ONT - SIN
2 stops27h 30mDelta
Sat 22-301:30SIN - ONT
2 stops35h 52mDelta
Deal found 21-2S$ 1,540
Wed 23-411:46ONT - SIN
2 stops36h 09mQatar Airways
Wed 30-418:45SIN - ONT
2 stops44h 14mQatar Airways
Deal found 20-2S$ 1,675
Tue 22-406:00ONT - SIN
2 stops27h 20mJapan Airlines
Tue 29-401:55SIN - ONT
2 stops28h 37mJapan Airlines
Deal found 20-2S$ 1,706
Wed 16-723:45ONT - SIN
1 stop21h 55mSTARLUX Airlines
Mon 21-714:00SIN - ONT
1 stop18h 40mSTARLUX Airlines
Deal found 20-2S$ 1,748

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 21 February 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

Tue 15-4

07:05-18:25

1 stop20h 20m

Singapore Changi

Tue 22-4

09:00-14:50

1 stop20h 50m

S$ 1,187

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 5-3

06:00-00:10

2 stops26h 10m

Singapore Changi

Wed 12-3

22:30-16:42

2 stops33h 12m

S$ 1,280

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 15-4

05:45-23:40

2 stops26h 55m

Singapore Changi

Wed 23-4

01:10-16:43

2 stops30h 33m

S$ 1,306

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 22-4

00:10-00:35

1 stop33h 25m

Singapore Changi

Tue 6-5

13:45-18:00

1 stop19h 15m

S$ 1,356

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Sun 16-3

05:40-00:10

2 stops27h 30m

Singapore Changi

Sat 22-3

01:30-22:22

2 stops35h 52m

S$ 1,540

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 23-4

11:46-14:55

2 stops36h 09m

Singapore Changi

Wed 30-4

18:45-23:59

2 stops44h 14m

S$ 1,675

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 22-4

06:00-00:20

2 stops27h 20m

Singapore Changi

Tue 29-4

01:55-15:32

2 stops28h 37m

S$ 1,706

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Wed 16-7

23:45-12:40

1 stop21h 55m

Singapore Changi

Mon 21-7

14:00-17:40

1 stop18h 40m

S$ 1,748

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 8-4

05:40-05:00

2 stops32h 20m

S$ 612

OntarioSingapore

ONT - SIN

ONTSIN

Ontario

Tue 22-4

06:00-00:20

2 stops27h 20m

S$ 622

Flights are sorted by cheapest return flights first.

Deals found on 21-2

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$ 778). Flying from Ontario in June will prove the most costly (average of S$ 1,280). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Comfort

9.0

Crew

9.3

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

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Comfort

9.0

Crew

9.3

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
1,037 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Comfort

9.0

Crew

9.3

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.

Japan Airlines
8.3
Very Good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Comfort

9.0

Crew

9.3

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
725 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Comfort

9.0

Crew

9.3

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
8,212 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Food

9.0

Boarding

9.1

Overall

9.1

Entertainment

9.1

Comfort

9.0

Crew

9.3

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.

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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 21 February 2025.

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

    This month, the top selected destinations from Ontario are Guadalajara, Dallas/Fort Worth Airport, Denver. 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$ 767 to Taipei City Taiwan Taoyuan Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 769 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$ 1,187 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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