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Cheap flights to Ontario from ฿15,494

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 2/9. 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.
SEA — ONT
27 Jun — 4 Jul1
1 adult
Thu 27/6
Thu 4/7

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 12,653 searches and data was last updated on 22 June 2024.

Popular in

August

Cheapest in

October

Average price

฿34,109

Return from

฿20,745

One-way from

฿15,494
High demand for flights, 11% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for return flights in June 2024
From Bangkok to Los Angeles
One-way flight from Bangkok to Ontario (ONT)

Cheap flights to Ontario in June & July 2024

Discover affordable flights and deals to Ontario in June and July 2024. In the last 7 days, Cheapflights users made a total of 12,653 searches and data was last updated on 22 June 2024.
The lowest-priced flights departing to Ontario in June and July 2024 can be found below. If these deals fall outside of your budget, be sure to come back soon as prices update often.
Tue 25/607:00BKK - ONT
2 stops29h 27mUnited Airlines
Tue 2/706:10ONT - BKK
2 stops27h 45mUnited Airlines
Deal found 22/6฿30,988
Wed 3/709:35BKK - ONT
2 stops46h 18mUnited Airlines
Fri 19/706:20ONT - BKK
2 stops27h 35mUnited Airlines
Deal found 22/6฿32,384
Mon 15/709:35BKK - ONT
2 stops64h 40mUnited Airlines
Tue 30/713:47ONT - BKK
2 stops44h 08mUnited Airlines
Deal found 22/6฿33,742
Mon 15/709:35BKK - ONT
2 stops64h 40mUnited Airlines
Tue 30/713:47ONT - BKK
3 stops48h 48mUnited Airlines
Deal found 22/6฿35,578
Fri 12/707:00BKK - ONT
2 stops43h 15mUnited Airlines
Sat 17/813:45ONT - BKK
2 stops48h 50mUnited Airlines
Deal found 22/6฿37,524
Sat 29/607:00BKK - ONT
2 stops29h 45mUnited Airlines
Mon 15/718:35ONT - BKK
2 stops44h 00mUnited Airlines
Deal found 21/6฿38,992
Tue 23/707:00BKK - ONT
2 stops29h 45mUnited Airlines
Tue 30/713:47ONT - BKK
2 stops44h 08mUnited Airlines
Deal found 22/6฿43,876
Wed 3/717:30BKK - ONT
1 stop39h 10mChina Airlines
Thu 18/700:45ONT - BKK
1 stop21h 25mChina Airlines
Deal found 22/6฿44,059
Wed 3/717:30BKK - ONT
1 stop39h 10mChina Airlines
Sun 21/700:45ONT - BKK
1 stop19h 00mChina Airlines
Deal found 22/6฿44,647

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 12,653 searches and data were last updated on 22 June 2024.
Check out some of the best flight deals to Ontario in 2024. Check back in a little while for more flight options.
Wed 3/709:35BKK - ONT
2 stops46h 18mUnited Airlines
Mon 26/806:20ONT - BKK
2 stops32h 15mUnited Airlines
Deal found 21/6฿30,841
Thu 19/909:35BKK - ONT
2 stops29h 10mUnited Airlines
Thu 10/1007:18ONT - BKK
2 stops26h 37mUnited Airlines
Deal found 21/6฿30,915
Tue 25/607:00BKK - ONT
2 stops29h 27mUnited Airlines
Tue 2/706:10ONT - BKK
2 stops27h 45mUnited Airlines
Deal found 22/6฿30,988
Tue 27/809:35BKK - ONT
2 stops46h 21mUnited Airlines
Thu 5/1206:00ONT - BKK
2 stops32h 10mUnited Airlines
Deal found 21/6฿31,098
Tue 2/707:00BKK - ONT
2 stops29h 45mUnited Airlines
Mon 26/806:20ONT - BKK
2 stops32h 15mUnited Airlines
Deal found 21/6฿31,172
Mon 9/907:00BKK - ONT
2 stops20h 21mUnited Airlines
Wed 9/1007:18ONT - BKK
2 stops26h 37mUnited Airlines
Deal found 21/6฿31,245
Fri 16/807:00BKK - ONT
2 stops24h 28mUnited Airlines
Thu 29/806:17ONT - BKK
2 stops32h 18mUnited Airlines
Deal found 22/6฿31,980
Fri 16/807:00BKK - ONT
2 stops24h 28mUnited Airlines
Thu 29/806:17ONT - BKK
2 stops32h 18mUnited Airlines
Deal found 22/6฿32,016
Tue 2/707:00BKK - ONT
2 stops29h 45mUnited Airlines
Fri 5/706:10ONT - BKK
2 stops27h 45mUnited Airlines
Deal found 21/6฿32,237

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 12,653 searches and data was last updated on 22 June 2024.
If you're looking for a last-minute flight to Ontario, consider booking one of these fares. Make sure to double check the price, time, and destination to confirm all are correct.
Tue 2/707:00BKK - ONT
2 stops29h 45mUnited Airlines
Mon 26/806:20ONT - BKK
2 stops32h 15mUnited Airlines
Deal found 21/6฿31,172
Tue 2/707:00BKK - ONT
2 stops29h 45mUnited Airlines
Fri 5/706:10ONT - BKK
2 stops27h 45mUnited Airlines
Deal found 21/6฿32,237
Mon 1/709:35BKK - ONT
2 stops51h 10mUnited Airlines
Mon 26/806:20ONT - BKK
2 stops32h 15mUnited Airlines
Deal found 21/6฿32,384
Tue 2/707:00BKK - ONT
2 stops29h 45mUnited Airlines
Fri 19/706:20ONT - BKK
2 stops27h 35mUnited Airlines
Deal found 21/6฿32,494
Tue 2/707:00BKK - ONT
2 stops29h 45mUnited Airlines
Sat 13/718:35ONT - BKK
2 stops44h 00mUnited Airlines
Deal found 21/6฿32,824
Sat 29/607:00BKK - ONT
2 stops29h 45mUnited Airlines
Sun 14/718:35ONT - BKK
2 stops39h 20mUnited Airlines
Deal found 21/6฿33,191
Thu 27/607:00BKK - ONT
2 stops29h 45mUnited Airlines
Thu 11/705:10ONT - BKK
2 stops28h 45mUnited Airlines
Deal found 21/6฿34,293
Sat 29/607:00BKK - ONT
2 stops29h 45mUnited Airlines
Sun 30/605:20ONT - BKK
2 stops28h 35mUnited Airlines
Deal found 21/6฿37,193
Sat 29/607:00BKK - ONT
2 stops29h 45mUnited Airlines
Mon 15/718:35ONT - BKK
2 stops44h 00mUnited Airlines
Deal found 21/6฿38,992

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 12,653 searches and data was last updated on 22 June 2024.
Take a look at some of the best available flights traveling to Ontario at this time. Those seeking round-trip flights to Ontario should utilize the search form at the top of the page.
Mon 2/913:30BKK - ONT
2 stops31h 06mMultiple Airlines
Deal found 21/6฿15,494
Fri 6/1202:35BKK - ONT
1 stop29h 00mChina Airlines
Deal found 20/6฿20,010
Mon 2/917:30BKK - ONT
1 stop39h 10mChina Airlines
Deal found 21/6฿20,047
Thu 19/902:40BKK - ONT
1 stop29h 25mChina Airlines
Deal found 21/6฿20,157
Mon 14/1002:40BKK - ONT
1 stop29h 25mChina Airlines
Deal found 22/6฿20,231
Thu 29/802:40BKK - ONT
1 stop30h 00mChina Airlines
Deal found 21/6฿20,341
Thu 5/1214:05BKK - ONT
1 stop17h 30mChina Airlines
Deal found 21/6฿20,524
Fri 20/902:40BKK - ONT
1 stop29h 25mChina Airlines
Deal found 22/6฿20,561
Thu 3/1008:05BKK - ONT
2 stops21h 16mJapan Airlines
Deal found 21/6฿21,773

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 12,653 searches and data was last updated on 22 June 2024.

Fly from

Any airport

Budget

฿30,915 - ฿64,547

Route

Depart

Return

Price

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 19/9

2 stops29h 10m

Ontario

Thu 10/10

2 stops28h 40m

฿30,915

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 17/9

2 stops29h 10m

Ontario

Thu 21/11

2 stops27h 50m

฿31,135

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 28/10

2 stops27h 34m

Ontario

Thu 14/11

2 stops27h 05m

฿31,209

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 19/9

1 stop18h 45m

Ontario

Wed 9/10

1 stop19h 35m

฿32,530

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 6/10

1 stop29h 25m

Ontario

Mon 4/11

1 stop23h 20m

฿32,641

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 28/11

1 stop17h 30m

Ontario

Mon 10/2

1 stop20h 05m

฿32,677

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Wed 27/11

2 stops24h 24m

Ontario

Tue 11/2

2 stops26h 35m

฿35,688

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sat 3/8

1 stop19h 20m

Ontario

Mon 14/10

2 stops24h 00m

฿50,485

Bangkok SuvarnabhumiOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Wed 18/9

2 stops35h 29m

Ontario

Thu 10/10

2 stops30h 56m

฿64,547

Flights are sorted by cheapest first

Deals found on 22/6

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.

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, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 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 21 June 2024.
To ensure you get the cheapest price possible for a flight to Ontario, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 16 June 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Users looking for the lowest fares to Ontario should consider flying on Wednesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at midday, 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 22 June 2024.
Read reviews from past customers who have flown United Airlines, China Airlines and เอทิฮัดแอร์เวย์ to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.3
Very Good
1,449 reviews

Overall

8.3

Food

7.8

Comfort

8.2

Entertainment

7.8

Crew

8.7

Boarding

8.4

Reviews

1 / 10

Our flight was changed a couple of times. It was a choas just to a boarding pass!! Boarding was not better!

8.3
Very Good
1,449 reviews
8.3
Very Good
1,449 reviews

Overall

8.3

Food

7.8

Comfort

8.2

Entertainment

7.8

Crew

8.7

Boarding

8.4

Reviews

1 / 10

Our flight was changed a couple of times. It was a choas just to a boarding pass!! Boarding was not better!

8.3
Very Good
871 reviews
8.3
Very Good
1,449 reviews

Overall

8.3

Food

7.8

Comfort

8.2

Entertainment

7.8

Crew

8.7

Boarding

8.4

Reviews

1 / 10

Our flight was changed a couple of times. It was a choas just to a boarding pass!! Boarding was not better!

7.7
Good
4,258 reviews
8.3
Very Good
1,449 reviews

Overall

8.3

Food

7.8

Comfort

8.2

Entertainment

7.8

Crew

8.7

Boarding

8.4

Reviews

1 / 10

Our flight was changed a couple of times. It was a choas just to a boarding pass!! Boarding was not better!

7.4
Good
10,000 reviews
8.3
Very Good
1,449 reviews

Overall

8.3

Food

7.8

Comfort

8.2

Entertainment

7.8

Crew

8.7

Boarding

8.4

Reviews

1 / 10

Our flight was changed a couple of times. It was a choas just to a boarding pass!! Boarding was not better!

7.3
Good
10,000 reviews
8.3
Very Good
1,449 reviews

Overall

8.3

Food

7.8

Comfort

8.2

Entertainment

7.8

Crew

8.7

Boarding

8.4

Reviews

1 / 10

Our flight was changed a couple of times. It was a choas just to a boarding pass!! Boarding was not better!

  • What does ONT mean?

    This is defined as Ontario Airport (ONT). Codes like ONT are often used to just call airports uniquely.

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

    Travellers will need to book flights to Ontario (ONT) if they wish to fly to Ontario. The Ontario airport is 4.9 km from the city centre.

  • 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.

  • Where does the fastest flight to Ontario depart from?

    For those looking to save time traveling to Ontario, Bangkok offers the quickest one-way flight (17 hours 30 minutes).

  • 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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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 22 June 2024.

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User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

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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?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights to Ontario with no change fees?

Yes, we can. To see specific flights to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights to Ontario become cheaper?

Of course! You can track prices for flights to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals to set up your price alerts.

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