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Cheap flights to Ontario from S$ 170

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 19-4. 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.
WAS — ONT
24 Mar — 31 Mar1
1 adult
Sun 24-3
Sun 31-3

Flights to Ontario in 2024

Find the latest flights to Ontario in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 203,602 searches and data was last updated on 19 March 2024.

Popular in

July

Cheapest in

October

Average price

S$ 1,163

Return from

S$ 878

One-way from

S$ 768
High demand for flights, 17% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for return flights in March 2024
From Singapore Changi to Los Angeles
One-way flight from Singapore Changi (SIN) to Ontario (ONT)

Cheap flights to Ontario in March & April 2024

Discover affordable flights and deals to Ontario in March and April 2024. In the last 7 days, Cheapflights users made a total of 203,602 searches and data was last updated on 19 March 2024.
The deals listed below are some of the cheapest flights available to Ontario in March and April 2024. Be sure to check back soon as deals update often.
Tue 2-413:00ORD - ONT
1 stop10h 52mAlaska Airlines
Wed 17-406:00ONT - ORD
1 stop21h 45mAlaska Airlines
Deal found 18-3S$ 399
Wed 3-413:00ORD - ONT
1 stop10h 52mAlaska Airlines
Tue 9-406:00ONT - ORD
1 stop28h 04mAlaska Airlines
Deal found 18-3S$ 412
Sat 20-406:00ORD - ONT
1 stop17h 28mAlaska Airlines
Tue 23-407:00ONT - ORD
2 stops14h 58mAlaska Airlines
Deal found 18-3S$ 431
Sat 13-415:25ORD - ONT
1 stop7h 21mDelta
Fri 19-412:35ONT - ORD
1 stop6h 46mDelta
Deal found 18-3S$ 474
Wed 17-408:35ORD - ONT
2 stops14h 53mAlaska Airlines
Wed 24-407:00ONT - ORD
2 stops20h 45mAlaska Airlines
Deal found 18-3S$ 476
Mon 8-417:46ORD - ONT
1 stop8h 13mAlaska Airlines
Thu 11-406:00ONT - ORD
1 stop10h 19mAlaska Airlines
Deal found 17-3S$ 478
Sat 13-411:45ORD - ONT
2 stops11h 01mDelta
Mon 15-417:19ONT - ORD
1 stop5h 40mDelta
Deal found 18-3S$ 480
Mon 8-418:59ORD - ONT
1 stop6h 47mDelta
Wed 10-411:20ONT - ORD
1 stop10h 38mDelta
Deal found 18-3S$ 482
Mon 8-406:00ORD - ONT
1 stop19h 59mAlaska Airlines
Tue 9-406:00ONT - ORD
1 stop21h 45mAlaska Airlines
Deal found 18-3S$ 491

Ontario 2024 flight deals

Explore flight deals for Ontario in 2024, offering the best prices and options to suit your preferences. In the last 7 days, Cheapflights users made a total of 203,602 searches and data were last updated on 19 March 2024.
These are some of the most attractive deals on flights to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sat 13-411:45ORD - ONT
2 stops11h 01mDelta
Sat 20-414:00ONT - ORD
1 stop7h 58mDelta
Deal found 17-3S$ 406
Tue 2-413:00ORD - ONT
1 stop10h 52mAlaska Airlines
Wed 10-406:00ONT - ORD
1 stop8h 46mAlaska Airlines
Deal found 17-3S$ 412
Sat 4-514:20ORD - ONT
1 stop10h 20mDelta
Sat 17-822:59ONT - ORD
1 stop7h 17mDelta
Deal found 17-3S$ 414
Sat 20-406:00ORD - ONT
1 stop17h 28mAlaska Airlines
Tue 23-407:00ONT - ORD
2 stops14h 58mAlaska Airlines
Deal found 18-3S$ 431
Thu 2-507:00ORD - ONT
2 stops18h 59mAlaska Airlines
Mon 6-519:59ONT - ORD
1 stop7h 46mAlaska Airlines
Deal found 18-3S$ 432
Thu 2-506:10ORD - ONT
1 stop9h 02mDelta
Sat 17-822:59ONT - ORD
1 stop7h 17mDelta
Deal found 17-3S$ 439
Thu 2-507:00ORD - ONT
2 stops18h 59mAlaska Airlines
Tue 7-506:00ONT - ORD
1 stop21h 45mAlaska Airlines
Deal found 17-3S$ 440
Mon 8-419:19ORD - ONT
1 stop16h 06mAlaska Airlines
Wed 10-406:00ONT - ORD
1 stop8h 46mAlaska Airlines
Deal found 17-3S$ 444
Sat 13-415:25ORD - ONT
1 stop7h 21mDelta
Fri 19-412:35ONT - ORD
1 stop6h 46mDelta
Deal found 18-3S$ 474

Flights to Ontario departing soon

Discover available last-minute flight options to Ontario, providing immediate availability and potentially lower prices. In the last 7 days, Cheapflights users made a total of 203,602 searches and data was last updated on 19 March 2024.
Browse through available last-minute flights traveling to Ontario. Tip: double check your flight details before making your reservation.
Mon 25-318:59ORD - ONT
1 stop6h 47mDelta
Tue 26-313:20ONT - ORD
1 stop6h 15mDelta
Deal found 18-3S$ 511
Wed 27-307:10ORD - ONT
1 stop7h 04mDelta
Wed 3-407:00ONT - ORD
2 stops12h 08mDelta
Deal found 18-3S$ 518
Tue 26-314:00ORD - ONT
2 stops10h 49mDelta
Wed 27-306:00ONT - ORD
2 stops13h 16mDelta
Deal found 18-3S$ 525
Mon 25-318:59ORD - ONT
1 stop6h 47mDelta
Wed 27-313:20ONT - ORD
1 stop6h 15mDelta
Deal found 18-3S$ 616
Mon 25-315:50ORD - ONT
2 stops9h 56mDelta
Tue 26-305:45ONT - ORD
2 stops11h 10mDelta
Deal found 18-3S$ 629
Tue 26-308:00ORD - ONT
1 stop10h 37mAlaska Airlines
Mon 1-419:59ONT - ORD
1 stop14h 05mAlaska Airlines
Deal found 18-3S$ 652
Wed 27-308:00ORD - ONT
1 stop10h 37mAlaska Airlines
Fri 29-310:39ONT - ORD
1 stop17h 06mAlaska Airlines
Deal found 18-3S$ 779
Tue 26-314:52ORD - ONT
1 stop9h 57mDelta
Thu 28-312:38ONT - ORD
1 stop8h 59mDelta
Deal found 18-3S$ 803
Tue 26-308:00ORD - ONT
1 stop10h 37mAlaska Airlines
Sun 31-317:32ONT - ORD
1 stop10h 13mAlaska Airlines
Deal found 18-3S$ 804

One-way flights to Ontario

Explore one-way flight options to Ontario for greater flexibility in your travel plans. Find up-to-date pricing and availability for one-way flights. In the last 7 days, Cheapflights users made a total of 203,602 searches and data was last updated on 19 March 2024.
Take a look at some of the one-way flights departing to Ontario in the near future. Those seeking round-trip flights to Ontario should utilize the search form at the top of the page.
Fri 19-408:00ORD - ONT
1 stop17h 59mAlaska Airlines
Deal found 18-3S$ 170
Tue 23-408:00ORD - ONT
2 stops15h 53mAlaska Airlines
Deal found 18-3S$ 217
Tue 16-414:53ORD - ONT
2 stops20h 40mAlaska Airlines
Deal found 18-3S$ 232
Tue 2-418:59ORD - ONT
1 stop6h 47mDelta
Deal found 17-3S$ 237
Tue 26-308:00ORD - ONT
1 stop10h 37mAlaska Airlines
Deal found 18-3S$ 256
Sat 20-406:00ORD - ONT
2 stops17h 53mAlaska Airlines
Deal found 17-3S$ 277
Wed 12-607:15ORD - ONT
1 stop7h 08mDelta
Deal found 18-3S$ 280
Sat 27-416:20ORD - ONT
1 stop6h 20mUnited Airlines
Deal found 18-3S$ 281
Thu 28-315:55ORD - ONT
1 stop8h 06mUnited Airlines
Deal found 18-3S$ 298

Find flights to Ontario within your budget

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 203,602 searches and data was last updated on 19 March 2024.

Fly from

Any airport

Budget

S$ 406 - S$ 610

Route

Depart

Return

Price

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 13-4

2 stops11h 01m

Ontario

Sat 20-4

1 stop7h 58m

S$ 406

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 2-4

1 stop10h 52m

Ontario

Wed 10-4

1 stop8h 46m

S$ 412

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 4-5

1 stop10h 20m

Ontario

Sat 17-8

1 stop7h 17m

S$ 414

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 20-4

1 stop17h 28m

Ontario

Tue 23-4

2 stops14h 58m

S$ 431

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 2-5

2 stops18h 59m

Ontario

Mon 6-5

1 stop7h 46m

S$ 432

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 2-5

1 stop9h 02m

Ontario

Sat 17-8

1 stop7h 17m

S$ 439

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 2-5

2 stops18h 59m

Ontario

Tue 7-5

1 stop21h 45m

S$ 440

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sun 21-4

1 stop17h 50m

Ontario

Thu 25-4

1 stop7h 45m

S$ 602

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 30-3

1 stop7h 15m

Ontario

Fri 5-4

1 stop8h 40m

S$ 610

Flights are sorted by cheapest first

Deals found on 17-3

Average price of flights to Ontario by month

Plan your trip to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight to Ontario is currently S$ 250 while a return flight costs S$ 465. Price data was last updated on 17 March 2024.

Currently, January is the cheapest month in which you can book a flight to Ontario (average of S$ 0). Flying to Ontario in January will prove the most costly (average of S$ 0). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

14 - 23 °C

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

When is the best time to book a flight to Ontario?

Use this chart to determine the optimal time to book a return flight to Ontario. Price data was last updated on 28 January 2024.
The best time to book flights to Ontario is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly to Ontario?

Use this chart to determine the cheapest time to fly return to Ontario. Price data was last updated on 10 March 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Users looking for the lowest fares to Ontario should consider flying on Tuesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday evenings, when prices are usually at their highest.
Search Deals

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 19 March 2024.
Read through reviews of airlines servicing Ontario, such as China Airlines, United Airlines and Korean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.6
Very Good
1,244 reviews

Overall

8.6

Boarding

8.6

Food

8.2

Entertainment

8.2

Comfort

8.4

Crew

8.8

Reviews

1 / 10

The crew was disorganized when sending water and snacks. They moved very slow. I did not even get the snack and water. The operation process definitely needs improvement. The entertainment contents were good.

8.6
Very Good
1,244 reviews
8.6
Very Good
1,244 reviews

Overall

8.6

Boarding

8.6

Food

8.2

Entertainment

8.2

Comfort

8.4

Crew

8.8

Reviews

1 / 10

The crew was disorganized when sending water and snacks. They moved very slow. I did not even get the snack and water. The operation process definitely needs improvement. The entertainment contents were good.

8.4
Very Good
1,477 reviews
8.6
Very Good
1,244 reviews

Overall

8.6

Boarding

8.6

Food

8.2

Entertainment

8.2

Comfort

8.4

Crew

8.8

Reviews

1 / 10

The crew was disorganized when sending water and snacks. They moved very slow. I did not even get the snack and water. The operation process definitely needs improvement. The entertainment contents were good.

8.3
Very Good
1,016 reviews
8.6
Very Good
1,244 reviews

Overall

8.6

Boarding

8.6

Food

8.2

Entertainment

8.2

Comfort

8.4

Crew

8.8

Reviews

1 / 10

The crew was disorganized when sending water and snacks. They moved very slow. I did not even get the snack and water. The operation process definitely needs improvement. The entertainment contents were good.

7.7
Good
4,578 reviews
8.6
Very Good
1,244 reviews

Overall

8.6

Boarding

8.6

Food

8.2

Entertainment

8.2

Comfort

8.4

Crew

8.8

Reviews

1 / 10

The crew was disorganized when sending water and snacks. They moved very slow. I did not even get the snack and water. The operation process definitely needs improvement. The entertainment contents were good.

7.4
Good
11,602 reviews
8.6
Very Good
1,244 reviews

Overall

8.6

Boarding

8.6

Food

8.2

Entertainment

8.2

Comfort

8.4

Crew

8.8

Reviews

1 / 10

The crew was disorganized when sending water and snacks. They moved very slow. I did not even get the snack and water. The operation process definitely needs improvement. The entertainment contents were good.

  • What does ONT mean?

    ONT is a unique code, commonly called an IATA code, used in the aviation industry to identify airports. This code, along with many others, are defined by IATA (International Air Transport Association). A ONT flight refers to a flight to Ontario Airport.

  • 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.

Browse thousands of different options on Cheapflights for your next trip

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Fly your favourite airline to Ontario
Fly your favorite airline to Ontario. Flight routes are based on user searches made on Cheapflights and were last updated on 19 March 2024.

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Find flights to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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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 to Ontario?

Deals for Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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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