Find flights
When to book
Airlines
Travel Guide

Cheap flights to Ontario from S$ 168

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 2-4. 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
2 Apr — 9 Apr1
1 adult
Tue 2-4
Tue 9-4

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 219,671 searches and data was last updated on 28 March 2024.

Popular in

July

Cheapest in

October

Average price

S$ 1,171

Return from

S$ 1,093

One-way from

S$ 767
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 219,671 searches and data was last updated on 28 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.
Mon 1-418:59ORD - ONT
1 stop6h 47mDelta
Wed 10-412:35ONT - ORD
1 stop6h 46mDelta
Deal found 26-3S$ 337
Thu 4-412:28ORD - ONT
2 stops12h 21mDelta
Tue 9-417:19ONT - ORD
1 stop5h 40mDelta
Deal found 26-3S$ 344
Thu 4-412:28ORD - ONT
2 stops12h 21mDelta
Tue 9-405:45ONT - ORD
2 stops13h 36mDelta
Deal found 26-3S$ 350
Sat 13-417:15ORD - ONT
1 stop6h 22mDelta
Sat 20-407:00ONT - ORD
1 stop14h 58mDelta
Deal found 27-3S$ 394
Wed 3-413:00ORD - ONT
1 stop10h 52mAlaska Airlines
Wed 10-406:00ONT - ORD
1 stop10h 19mAlaska Airlines
Deal found 27-3S$ 420
Sat 13-405:32ORD - ONT
1 stop7h 50mDelta
Sat 20-405:45ONT - ORD
2 stops9h 05mDelta
Deal found 27-3S$ 427
Sat 13-411:45ORD - ONT
2 stops11h 52mDelta
Mon 15-422:00ONT - ORD
2 stops12h 43mDelta
Deal found 27-3S$ 434
Mon 1-414:52ORD - ONT
1 stop9h 57mDelta
Thu 11-412:35ONT - ORD
1 stop9h 17mDelta
Deal found 26-3S$ 443
Fri 26-414:53ORD - ONT
2 stops27h 12mAlaska Airlines
Tue 30-406:00ONT - ORD
1 stop21h 45mAlaska Airlines
Deal found 27-3S$ 462

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 219,671 searches and data were last updated on 28 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.
Mon 1-418:59ORD - ONT
1 stop6h 47mDelta
Wed 10-412:35ONT - ORD
1 stop6h 46mDelta
Deal found 26-3S$ 337
Thu 4-412:28ORD - ONT
2 stops12h 21mDelta
Tue 9-417:19ONT - ORD
1 stop5h 40mDelta
Deal found 26-3S$ 344
Thu 4-412:28ORD - ONT
2 stops12h 21mDelta
Tue 9-405:45ONT - ORD
2 stops13h 36mDelta
Deal found 26-3S$ 350
Sat 13-417:15ORD - ONT
1 stop6h 22mDelta
Sat 20-407:00ONT - ORD
1 stop14h 58mDelta
Deal found 27-3S$ 394
Tue 27-818:59ORD - ONT
1 stop6h 45mDelta
Sun 1-913:42ONT - ORD
1 stop6h 14mDelta
Deal found 27-3S$ 420
Sat 13-405:32ORD - ONT
1 stop7h 50mDelta
Sat 20-405:45ONT - ORD
2 stops9h 05mDelta
Deal found 27-3S$ 427
Sat 13-411:45ORD - ONT
2 stops11h 52mDelta
Mon 15-422:00ONT - ORD
2 stops12h 43mDelta
Deal found 27-3S$ 434
Mon 1-414:52ORD - ONT
1 stop9h 57mDelta
Thu 11-412:35ONT - ORD
1 stop9h 17mDelta
Deal found 26-3S$ 443
Sun 1-907:15ORD - ONT
1 stop7h 08mDelta
Mon 2-913:42ONT - ORD
1 stop6h 14mDelta
Deal found 27-3S$ 454

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 219,671 searches and data was last updated on 28 March 2024.
Browse through available last-minute flights traveling to Ontario. Tip: double check your flight details before making your reservation.
Thu 4-412:28ORD - ONT
2 stops12h 21mDelta
Tue 9-417:19ONT - ORD
1 stop5h 40mDelta
Deal found 26-3S$ 344
Thu 4-412:28ORD - ONT
2 stops12h 21mDelta
Tue 9-405:45ONT - ORD
2 stops13h 36mDelta
Deal found 26-3S$ 350
Wed 3-413:00ORD - ONT
1 stop10h 52mAlaska Airlines
Wed 10-406:00ONT - ORD
1 stop10h 19mAlaska Airlines
Deal found 27-3S$ 420
Mon 1-414:52ORD - ONT
1 stop9h 57mDelta
Thu 11-412:35ONT - ORD
1 stop9h 17mDelta
Deal found 26-3S$ 443
Tue 2-413:00ORD - ONT
1 stop10h 52mAlaska Airlines
Thu 11-419:59ONT - ORD
1 stop7h 46mAlaska Airlines
Deal found 27-3S$ 468
Tue 2-413:00ORD - ONT
1 stop10h 52mAlaska Airlines
Tue 9-417:32ONT - ORD
1 stop10h 13mAlaska Airlines
Deal found 27-3S$ 528
Fri 5-414:52ORD - ONT
2 stops10h 54mDelta
Sun 14-422:00ONT - ORD
1 stop8h 19mDelta
Deal found 27-3S$ 539
Fri 5-414:00ORD - ONT
2 stops11h 46mDelta
Tue 9-405:45ONT - ORD
2 stops13h 36mDelta
Deal found 27-3S$ 546
Mon 1-418:59ORD - ONT
1 stop6h 47mDelta
Sat 6-407:00ONT - ORD
1 stop9h 52mDelta
Deal found 26-3S$ 565

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 219,671 searches and data was last updated on 28 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.
Tue 2-414:52ORD - ONT
1 stop9h 57mDelta
Deal found 26-3S$ 168
Tue 2-415:50ORD - ONT
2 stops9h 56mDelta
Deal found 26-3S$ 175
Wed 17-406:10ORD - ONT
1 stop9h 02mDelta
Deal found 27-3S$ 183
Wed 3-414:52ORD - ONT
1 stop9h 57mDelta
Deal found 27-3S$ 210
Mon 1-414:52ORD - ONT
2 stops10h 54mDelta
Deal found 27-3S$ 217
Mon 29-414:53ORD - ONT
2 stops11h 06mAlaska Airlines
Deal found 27-3S$ 232
Mon 8-417:46ORD - ONT
1 stop8h 13mAlaska Airlines
Deal found 27-3S$ 257
Tue 30-406:00ORD - ONT
2 stops17h 53mAlaska Airlines
Deal found 27-3S$ 279
Fri 24-519:30ORD - ONT
1 stop6h 13mDelta
Deal found 27-3S$ 282

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 219,671 searches and data was last updated on 28 March 2024.

Fly from

Any airport

Budget

S$ 394 - S$ 850

Route

Depart

Return

Price

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 13-4

1 stop6h 22m

Ontario

Sat 20-4

1 stop14h 58m

S$ 394

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 27-8

1 stop6h 45m

Ontario

Sat 31-8

1 stop7h 17m

S$ 420

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 13-4

1 stop6h 22m

Ontario

Sat 20-4

2 stops9h 05m

S$ 427

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 13-4

2 stops11h 52m

Ontario

Mon 15-4

2 stops12h 43m

S$ 434

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sun 1-9

1 stop7h 08m

Ontario

Mon 2-9

1 stop6h 14m

S$ 454

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Fri 26-4

2 stops27h 12m

Ontario

Tue 30-4

1 stop21h 45m

S$ 462

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 2-5

2 stops14h 04m

Ontario

Mon 6-5

1 stop7h 46m

S$ 496

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Mon 8-4

1 stop8h 13m

Ontario

Thu 11-4

1 stop7h 46m

S$ 515

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 25-7

1 stop8h 10m

Ontario

Mon 29-7

2 stops8h 19m

S$ 850

Flights are sorted by cheapest first

Deals found on 27-3

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$ 223 while a return flight costs S$ 495. Price data was last updated on 24 March 2024.

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 24 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 28 March 2024.
Read through reviews of airlines servicing Ontario, such as United Airlines, China Airlines and Japan Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.3
Very Good
1,467 reviews

Crew

8.7

Entertainment

7.9

Boarding

8.4

Comfort

8.2

Food

7.9

Overall

8.3

Reviews

1 / 10

Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!

8.3
Very Good
1,467 reviews
8.3
Very Good
1,467 reviews

Crew

8.7

Entertainment

7.9

Boarding

8.4

Comfort

8.2

Food

7.9

Overall

8.3

Reviews

1 / 10

Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!

8.3
Very Good
1,010 reviews
8.3
Very Good
1,467 reviews

Crew

8.7

Entertainment

7.9

Boarding

8.4

Comfort

8.2

Food

7.9

Overall

8.3

Reviews

1 / 10

Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!

8.1
Very Good
11,418 reviews
8.3
Very Good
1,467 reviews

Crew

8.7

Entertainment

7.9

Boarding

8.4

Comfort

8.2

Food

7.9

Overall

8.3

Reviews

1 / 10

Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!

7.7
Good
4,558 reviews
8.3
Very Good
1,467 reviews

Crew

8.7

Entertainment

7.9

Boarding

8.4

Comfort

8.2

Food

7.9

Overall

8.3

Reviews

1 / 10

Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!

7.4
Good
11,481 reviews
8.3
Very Good
1,467 reviews

Crew

8.7

Entertainment

7.9

Boarding

8.4

Comfort

8.2

Food

7.9

Overall

8.3

Reviews

1 / 10

Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!

  • 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

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

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 28 March 2024.

Search flights to Ontario by cabin class

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