฿3,773+ Cheap flights from Ontario

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/4. 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.
ONT — BKK
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Ontario

Discover essential information about flights departing from Ontario, including flight schedules, destinations, airlines operating at the Ontario airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 11 March 2026.

Cheapest airline

EVA Air

Good one-way deal

฿4,237 or less
On average, EVA Air currently has the cheapest one-way flight from Ontario (avg. price of ฿26,178).
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Price to beat on a one-way flight from Ontario.
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Find flights from Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 11 March 2026.

Tue 7/422:25
ONT
-
MYR
1 stop8h 08m
เดลต้า
Tue 14/415:49
MYR
-
ONT
1 stop8h 11m
เดลต้า
Deal found 10/3฿12,269
Sat 2/512:49
ONT
-
MYR
1 stop8h 25m
เดลต้า
Sat 9/511:40
MYR
-
ONT
1 stop9h 56m
เดลต้า
Deal found 7/3฿12,523
Tue 12/521:55
ONT
-
MYR
1 stop9h 40m
เซาท์เวสต์แอร์ไลน์
Thu 14/515:45
MYR
-
ONT
2 stops10h 20m
เซาท์เวสต์แอร์ไลน์
Deal found 9/3฿12,555
Sat 2/506:10
ONT
-
MYR
2 stops11h 35m
เซาท์เวสต์แอร์ไลน์
Sat 9/510:35
MYR
-
ONT
1 stop7h 20m
เซาท์เวสต์แอร์ไลน์
Deal found 7/3฿12,681
Tue 7/406:30
ONT
-
MYR
2 stops11h 00m
เซาท์เวสต์แอร์ไลน์
Tue 14/416:05
MYR
-
ONT
2 stops9h 05m
เซาท์เวสต์แอร์ไลน์
Deal found 10/3฿13,220
Fri 1/522:15
ONT
-
MYR
1 stop8h 25m
เดลต้า
Sat 9/516:54
MYR
-
ONT
1 stop7h 54m
เดลต้า
Deal found 7/3฿13,347
Fri 1/521:55
ONT
-
MYR
1 stop9h 00m
เซาท์เวสต์แอร์ไลน์
Sat 9/510:35
MYR
-
ONT
2 stops10h 15m
เซาท์เวสต์แอร์ไลน์
Deal found 7/3฿13,506
Sat 4/412:57
ONT
-
MYR
1 stop8h 07m
เดลต้า
Fri 10/414:16
MYR
-
ONT
1 stop9h 44m
เดลต้า
Deal found 7/3฿14,171
Mon 27/407:00
ONT
-
BKK
2 stops26h 35m
Korean Air
Tue 12/523:30
BKK
-
ONT
2 stops31h 40m
Korean Air
Deal found 10/3฿17,976
Wed 29/407:00
ONT
-
BKK
2 stops24h 45m
Korean Air
Sun 17/509:50
BKK
-
ONT
2 stops45h 20m
Korean Air
Deal found 10/3฿18,388
Mon 20/406:00
ONT
-
BKK
2 stops27h 35m
เดลต้า
Wed 6/509:50
BKK
-
ONT
2 stops26h 47m
เดลต้า
Deal found 11/3฿19,339
Thu 3/907:00
ONT
-
BKK
2 stops24h 45m
เดลต้า
Wed 30/921:40
BKK
-
ONT
2 stops33h 36m
เดลต้า
Deal found 9/3฿19,371

Find flights from Ontario within your budget

 
Find flights departing from Ontario that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 11 March 2026. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioMyrtle Beach

ONT - MYR

ONTMYR

Ontario

Sat 25/7

05:00-15:15

1 stop7h 15m

Myrtle Beach Intl

Sat 1/8

06:35-13:40

2 stops10h 05m

฿14,964

OntarioMyrtle Beach

ONT - MYR

ONTMYR

Ontario

Wed 3/6

06:15-20:30

2 stops11h 15m

Myrtle Beach Intl

Mon 8/6

05:15-11:20

2 stops9h 05m

฿15,566

OntarioMyrtle Beach

ONT - MYR

ONTMYR

Ontario

Wed 8/7

23:55-11:15

1 stop8h 20m

Myrtle Beach Intl

Sun 12/7

07:25-15:55

1 stop11h 30m

฿16,232
Fastest return journey

OntarioMyrtle Beach

ONT - MYR

ONTMYR

Ontario

Sun 14/6

23:55-11:15

1 stop8h 20m

Myrtle Beach Intl

Fri 19/6

05:15-09:05

1 stop6h 50m

฿16,581

OntarioMyrtle Beach

ONT - MYR

ONTMYR

Ontario

Tue 14/4

06:00-10:18

2 stops25h 18m

Myrtle Beach Intl

Wed 15/4

15:15-22:31

1 stop10h 16m

฿16,961

OntarioMyrtle Beach

ONT - MYR

ONTMYR

Ontario

Sat 29/8

05:00-15:57

1 stop7h 57m

Myrtle Beach Intl

Tue 1/9

11:25-18:19

1 stop9h 54m

฿17,342

OntarioMyrtle Beach

ONT - MYR

ONTMYR

Ontario

Wed 15/4

12:49-00:14

1 stop8h 25m

Myrtle Beach Intl

Sun 19/4

15:49-21:00

1 stop8h 11m

฿17,976

OntarioMyrtle Beach

ONT - MYR

ONTMYR

Ontario

Wed 25/3

07:05-21:10

2 stops11h 05m

Myrtle Beach Intl

Sun 29/3

17:45-00:10

2 stops9h 25m

฿18,293

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 1/9

06:00-23:35

2 stops27h 35m

Bangkok Suvarnabhumi

Wed 23/9

02:35-23:44

2 stops35h 09m

฿22,827

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Sun 3/5

07:00-22:10

2 stops25h 10m

Phuket City

Sat 9/5

23:25-17:10

2 stops31h 45m

฿24,285

Flights are sorted by cheapest return flights first.

Deals found on 11/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario

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

Travel insights for flights from Ontario

Get recent, data-driven insights about flights from Ontario including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Ontario to Suvarnabhumi. Price data was last updated on 6 March 2026.

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Ontario?

Currently, January is the cheapest month in which you can book a flight from Ontario (average of ฿15,947). Flying from Ontario in June will prove the most costly (average of ฿23,714). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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Related info for your journey

Access useful and relevant information related to your journey from Ontario. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 11 March 2026.

  • What are the most popular destinations to fly to from Ontario?

    The most selected flight destinations from Ontario for the current month are Las Vegas, Dallas/Fort Worth Airport, Denver. While Las Vegas, Dallas/Fort Worth Airport, Denver are the top choices made by travellers year-round.

  • What is the cheapest flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as ฿4,236 to Phoenix Sky Harbor Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿9,656 to fly from Ontario.

  • What is the cheapest month to fly from Ontario?

    At the present moment the cheapest month to fly from Ontario is currently January; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Ontario?

    Here are some of the cheapest flight destinations from Ontario:
    Fly from Ontario to Bangkok from ฿18,388

  • How does Cheapflights help users find flights from Ontario?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from 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 from Ontario?

    Cheapflights simply makes it quick and affordable to book flights from Ontario by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

  • Can Cheapflights find flights from Ontario with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario, users can toggle the no change fees filter when performing a flight search.

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

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

See more FAQs

Fly with Cheapflights

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 from Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from 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 from Ontario?

Cheapflights simply makes it quick and affordable to book flights from Ontario by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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