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S$ 643+ Cheap flights to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29-4. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Ontario in 2026

Find the latest flights to Ontario in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 16 January 2026.

Return from

S$ 865

One-way from

S$ 643

Popular in

January

Cheapest in

September

Average price

S$ 1,310
Korean Air
  • Korean Air
  • 4-2-16-2
  • 2 total stops
  • 43h 40m total
  • Singapore to Los Angeles
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STARLUX Airlines
  • STARLUX Airlines
  • 29-4
  • 1 total stop
  • 18h 05m total
  • Singapore to Ontario
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Highest demand for flights based on searches. 6% potential increase in price (S$ 83 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (S$ 15 potential savings vs. average return price).
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Average for return flights in January 2026
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Find flight deals to Ontario

Enter your travel dates to find the best prices.

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 16 January 2026.

Thu 5-314:25
SIN
-
ONT
1 stop18h 25m
China Airlines
Wed 18-323:50
ONT
-
SIN
1 stop22h 15m
China Airlines
Deal found 15-1S$ 1,096
Mon 27-402:00
SIN
-
ONT
1 stop31h 00m
China Airlines
Sun 3-500:10
ONT
-
SIN
1 stop33h 25m
China Airlines
Deal found 15-1S$ 1,097
Fri 6-314:25
SIN
-
ONT
1 stop18h 25m
China Airlines
Tue 10-323:50
ONT
-
SIN
1 stop22h 15m
China Airlines
Deal found 14-1S$ 1,099
Sun 1-202:00
SIN
-
ONT
1 stop30h 50m
China Airlines
Mon 16-222:50
ONT
-
SIN
1 stop22h 15m
China Airlines
Deal found 15-1S$ 1,108
Tue 10-214:25
SIN
-
ONT
1 stop18h 25m
China Airlines
Tue 24-222:50
ONT
-
SIN
1 stop33h 50m
China Airlines
Deal found 14-1S$ 1,110
Thu 13-813:45
SIN
-
ONT
1 stop19h 55m
China Airlines
Sat 15-800:45
ONT
-
SIN
1 stop20h 50m
China Airlines
Deal found 14-1S$ 1,122
Fri 30-114:25
SIN
-
ONT
1 stop18h 25m
China Airlines
Sat 14-222:50
ONT
-
SIN
1 stop22h 15m
China Airlines
Deal found 14-1S$ 1,123
Mon 1-613:45
SIN
-
ONT
1 stop19h 15m
China Airlines
Sat 6-600:10
ONT
-
SIN
1 stop33h 25m
China Airlines
Deal found 15-1S$ 1,186
Wed 21-110:10
SIN
-
ONT
1 stop23h 33m
United Airlines
Tue 27-106:00
ONT
-
SIN
1 stop22h 15m
United Airlines
Deal found 15-1S$ 1,253
Thu 5-310:10
SIN
-
ONT
1 stop18h 08m
United Airlines
Wed 18-306:15
ONT
-
SIN
1 stop23h 00m
United Airlines
Deal found 14-1S$ 1,254
Fri 6-310:10
SIN
-
ONT
1 stop28h 47m
United Airlines
Tue 10-313:50
ONT
-
SIN
2 stops39h 25m
United Airlines
Deal found 13-1S$ 1,303

Cheapflights Fare Finder

 
Locate flights to Ontario that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 16 January 2026.
Use the filters below to find and compare flights to Ontario that are best for you.

Fly from

Singapore

Route

Depart

Return

Price

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Thu 5-3

14:25-16:50

1 stop18h 25m

Ontario

Wed 18-3

23:50-13:05

1 stop22h 15m

S$ 1,096

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Mon 27-4

02:00-18:00

1 stop31h 00m

Ontario

Sun 3-5

00:10-00:35

1 stop33h 25m

S$ 1,097

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Fri 6-3

14:25-16:50

1 stop18h 25m

Ontario

Tue 10-3

23:50-13:05

1 stop22h 15m

S$ 1,099

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Sun 1-2

02:00-16:50

1 stop30h 50m

Ontario

Mon 16-2

22:50-13:05

1 stop22h 15m

S$ 1,108

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Fri 30-1

14:25-16:50

1 stop18h 25m

Ontario

Sat 14-2

22:50-13:05

1 stop22h 15m

S$ 1,123

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Sun 15-3

14:25-17:50

1 stop18h 25m

Ontario

Sun 22-3

23:50-00:40

1 stop33h 50m

S$ 1,123

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Sat 31-1

14:25-16:50

1 stop18h 25m

Ontario

Sun 15-2

22:50-13:05

1 stop22h 15m

S$ 1,123

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Sat 31-1

02:00-16:50

1 stop30h 50m

Ontario

Mon 16-2

22:50-00:40

1 stop33h 50m

S$ 1,123

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Mon 1-6

13:45-18:00

1 stop19h 15m

Ontario

Sat 6-6

00:10-00:35

1 stop33h 25m

S$ 1,186

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Thu 5-3

10:10-12:18

1 stop18h 08m

Ontario

Wed 18-3

13:40-07:00

1 stop26h 20m

S$ 1,253

Flights are sorted by cheapest return flights first.

Deals found on 16-1

Showing 1-10 of 22 results
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2
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Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to 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.

Cheapflights Insights

Everything you need to know about your flight to Ontario

What are the cheapest airlines that fly to Ontario?

The cheapest airline flying from Singapore to Ontario is China Airlines.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 16 January 2026.
Read through reviews of airlines serving the United States, such as China Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very Good
798 reviews
Check prices

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Overall

8.3

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

TPE - SFO

China Airlines has horrible customer services. The flight I was taking had many empty seats, but I got rejected many services with the excuses that the flight is fully booked. 1. When I was checking in at the front dest to request the seat together with my husband, I was told that the flight was fully booked. We need to pay almost extra $200 per person to sit together. 2. When I tried to use the VIP lounge with my mileage points, I was rejected. The reason was that the flight was fully booked.
China Airlines
8.3
Very Good
798 reviews
China Airlines
8.3
Very Good
798 reviews
Check prices

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Overall

8.3

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

TPE - SFO

China Airlines has horrible customer services. The flight I was taking had many empty seats, but I got rejected many services with the excuses that the flight is fully booked. 1. When I was checking in at the front dest to request the seat together with my husband, I was told that the flight was fully booked. We need to pay almost extra $200 per person to sit together. 2. When I tried to use the VIP lounge with my mileage points, I was rejected. The reason was that the flight was fully booked.

FAQs about flying to Ontario

  • What airport do you fly into for flights to Ontario?

    If you book a flight to Ontario, you will be flying into Ontario, which is the city’s only airport. Ontario (ONT) is located 4.9 km from the centre of Ontario.

  • Can I find cheaper flights to Ontario if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ontario?

    Based on reviews from Cheapflights users, China Airlines is rated the highest out of the airlines that fly to Ontario.

  • Does Ontario have rental cars?

    Yes. Those touching down at Ontario can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ontario?

    Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 km away from Ontario).

See more FAQs

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How does Cheapflights help users find flights to Ontario?

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario.

Can Cheapflights find flights to Ontario with no change fees?

Need flexible booking options for your flight to 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 to Ontario become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Ontario today and book when you’re ready!

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