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S$ 685+ 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 14-3. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Ontario in 2025

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 12 December 2025.

Fri 26-1214:25SIN - ONT
1 stop18h 25mChina Airlines
Sat 10-122:50ONT - SIN
1 stop22h 15mChina Airlines
Deal found 10-12S$ 1,237
Mon 29-1210:10SIN - ONT
1 stop23h 33mUnited Airlines
Thu 8-106:00ONT - SIN
1 stop22h 15mUnited Airlines
Deal found 10-12S$ 1,249
Sat 27-1222:20SIN - ONT
1 stop27h 41mUnited Airlines
Thu 8-106:00ONT - SIN
1 stop22h 15mUnited Airlines
Deal found 10-12S$ 1,298
Sat 27-1202:00SIN - ONT
1 stop30h 50mChina Airlines
Sun 11-122:50ONT - SIN
1 stop33h 50mChina Airlines
Deal found 10-12S$ 1,312
Sat 27-1210:10SIN - ONT
1 stop23h 33mUnited Airlines
Sun 11-106:00ONT - SIN
1 stop22h 15mUnited Airlines
Deal found 11-12S$ 1,350
Sun 28-1214:25SIN - ONT
1 stop18h 25mChina Airlines
Tue 6-122:50ONT - SIN
1 stop22h 15mChina Airlines
Deal found 10-12S$ 1,387
Thu 25-1214:25SIN - ONT
1 stop18h 25mChina Airlines
Fri 9-122:50ONT - SIN
1 stop22h 15mChina Airlines
Deal found 10-12S$ 1,440
Wed 10-1202:00SIN - ONT
1 stop30h 50mChina Airlines
Wed 7-122:50ONT - SIN
1 stop22h 15mChina Airlines
Deal found 9-12S$ 1,444
Mon 29-1210:10SIN - ONT
1 stop23h 33mUnited Airlines
Mon 5-118:39ONT - SIN
1 stop21h 21mUnited Airlines
Deal found 10-12S$ 1,461
Sat 27-1202:00SIN - ONT
1 stop30h 50mChina Airlines
Fri 9-122:50ONT - SIN
1 stop22h 15mChina Airlines
Deal found 10-12S$ 1,536
Thu 11-1210:10SIN - ONT
2 stops26h 32mUnited Airlines
Wed 7-106:00ONT - SIN
1 stop22h 15mUnited Airlines
Deal found 9-12S$ 1,560

Find flight deals to Ontario

Find the latest flights to Ontario in 2025, 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 12 December 2025.

Return from

S$ 884

One-way from

S$ 685

Popular in

January

Cheapest in

October

Average price

S$ 1,273
Cathay Pacific
  • Cathay Pacific
  • 25-1-1-2
  • 2 total stops
  • 50h 20m total
  • Singapore to Los Angeles
Search Deals
China Airlines
  • China Airlines
  • 28-1
  • 1 total stop
  • 30h 50m total
  • Singapore to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (S$ 103 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 22 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
Search Deals

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 12 December 2025.
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

Sat 31-1

02:00-16:50

1 stop30h 50m

Ontario

Sun 15-2

22:50-00:40

1 stop33h 50m

S$ 1,100

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Thu 26-2

14:25-16:50

1 stop18h 25m

Ontario

Mon 2-3

22:50-00:40

1 stop33h 50m

S$ 1,121

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Wed 14-1

14:25-16:50

1 stop18h 25m

Ontario

Mon 19-1

22:50-00:40

1 stop33h 50m

S$ 1,216

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Thu 26-2

10:10-20:50

2 stops26h 40m

Ontario

Mon 2-3

05:00-08:00

2 stops35h 00m

S$ 1,249

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Tue 13-1

22:20-11:18

1 stop28h 58m

Ontario

Tue 20-1

13:53-08:00

1 stop26h 07m

S$ 1,249

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Tue 13-1

22:20-11:18

1 stop28h 58m

Ontario

Thu 15-1

06:00-20:15

1 stop22h 15m

S$ 1,249

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Thu 22-1

10:10-20:58

2 stops26h 48m

Ontario

Tue 10-2

06:00-20:15

1 stop22h 15m

S$ 1,250

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Tue 13-1

10:10-22:53

1 stop28h 43m

Ontario

Wed 21-1

06:00-20:15

1 stop22h 15m

S$ 1,250

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Sat 14-3

02:00-17:50

1 stop30h 50m

S$ 685

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Mon 23-3

02:00-17:50

1 stop30h 50m

S$ 685

Flights are sorted by cheapest return flights first.

Deals found on 10-12

Showing 1-10 of 20 results
1
2

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 12 December 2025.
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
8.2
Very Good
788 reviews
Check prices

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Entertainment

8.0

Overall

8.2

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
8.2
Very Good
788 reviews
China Airlines
8.2
Very Good
788 reviews
Check prices

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Entertainment

8.0

Overall

8.2

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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