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Cheap flights from Bangkok to Ontario from ฿16,120

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 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
27 Aug — 3 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bangkok to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Ontario
Explore the most affordable flight options available from Bangkok to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 July 2026.

Wed 2/913:20
BKK
-
ONT
1 stop19h 20m
China Airlines
Tue 15/900:10
ONT
-
BKK
1 stop26h 10m
China Airlines
Deal found 27/7฿27,269
Tue 1/1217:50
BKK
-
ONT
1 stop38h 15m
China Airlines
Thu 31/1222:50
ONT
-
BKK
1 stop20h 00m
China Airlines
Deal found 23/7฿27,336
Fri 11/913:20
BKK
-
ONT
1 stop19h 20m
China Airlines
Thu 17/900:10
ONT
-
BKK
1 stop22h 00m
China Airlines
Deal found 25/7฿27,403
Thu 17/913:20
BKK
-
ONT
1 stop18h 40m
China Airlines
Fri 18/900:10
ONT
-
BKK
1 stop19h 35m
China Airlines
Deal found 26/7฿27,437
Sun 20/910:50
BKK
-
ONT
1 stop21h 10m
China Airlines
Sat 21/1122:50
ONT
-
BKK
1 stop35h 45m
China Airlines
Deal found 24/7฿27,504
Sun 1/1117:40
BKK
-
ONT
1 stop37h 15m
STARLUX Airlines
Mon 30/1121:45
ONT
-
BKK
1 stop27h 45m
STARLUX Airlines
Deal found 27/7฿28,176
Wed 2/1217:50
BKK
-
ONT
1 stop38h 15m
China Airlines
Thu 10/1222:50
ONT
-
BKK
1 stop20h 00m
China Airlines
Deal found 25/7฿28,411
Fri 11/1213:45
BKK
-
ONT
1 stop17h 10m
STARLUX Airlines
Fri 11/1221:45
ONT
-
BKK
1 stop23h 50m
STARLUX Airlines
Deal found 28/7฿29,217
Tue 1/917:30
BKK
-
ONT
1 stop39h 10m
China Airlines
Tue 6/1000:10
ONT
-
BKK
1 stop26h 10m
China Airlines
Deal found 25/7฿29,317
Fri 18/1202:35
BKK
-
ONT
1 stop29h 30m
China Airlines
Sat 2/122:50
ONT
-
BKK
1 stop23h 15m
China Airlines
Deal found 28/7฿29,519
Wed 2/906:15
DMK
-
ONT
1 stop24h 50m
Multiple Airlines
Mon 14/923:30
ONT
-
DMK
1 stop27h 10m
Multiple Airlines
Deal found 26/7฿32,911
Sat 22/806:15
DMK
-
ONT
1 stop25h 25m
Multiple Airlines
Thu 3/900:45
ONT
-
DMK
1 stop28h 45m
Multiple Airlines
Deal found 24/7฿37,176

Find flight deals from Bangkok to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 July 2026.

Round-trip from

฿27,269

One-way from

฿16,120

Popular in

September

Cheapest in

February

Average price

฿31,232
China Airlines
  • China Airlines
  • 2/9-15/9
  • 2 total stops
  • 45h 30m total
  • Bangkok to Ontario
Search Deals
STARLUX Airlines
  • STARLUX Airlines
  • 14/11
  • 1 total stop
  • 17h 10m total
  • Bangkok to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (฿77,279 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿14,603 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 28 July 2026.
Use the filters below to find and compare flights from Bangkok to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 2/11

02:35-17:05

1 stop29h 30m

Ontario

Tue 1/12

22:50-01:35

1 stop35h 45m

฿27,269
Fastest return journey

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Wed 2/9

13:20-18:40

1 stop19h 20m

Ontario

Tue 15/9

00:10-16:20

1 stop26h 10m

฿27,269

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 12/11

17:50-17:05

1 stop38h 15m

Ontario

Sun 22/11

22:50-09:50

1 stop20h 00m

฿27,269

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 1/12

17:50-17:05

1 stop38h 15m

Ontario

Thu 31/12

22:50-09:50

1 stop20h 00m

฿27,336

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 23/8

02:40-18:40

1 stop30h 00m

Ontario

Mon 7/9

00:45-12:10

1 stop21h 25m

฿30,694

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 18/10

17:50-18:00

2 stops38h 10m

Ontario

Sun 25/10

23:50-16:45

1 stop26h 55m

฿32,743

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 12/11

09:10-17:55

2 stops23h 45m

Ontario

Sun 22/11

18:36-11:30

2 stops25h 54m

฿32,776

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Wed 2/9

09:35-20:01

2 stops48h 26m

Ontario

Wed 16/9

09:01-23:55

2 stops24h 54m

฿32,844

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 8/9

17:50-18:40

2 stops38h 50m

Ontario

Sun 13/9

00:45-09:45

1 stop19h 00m

฿32,877

BangkokOntario

DMK - ONT

DMKONT

Bangkok Don Mueang Intl

Wed 2/9

06:15-17:05

1 stop24h 50m

Ontario

Mon 14/9

23:30-16:40

1 stop27h 10m

฿32,911

Flights are sorted by cheapest return flights first.

Deals found on 25/7

Showing 1-10 of 37 resultsSorted by cheapest first
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Best time to book a flight from Bangkok to Ontario

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

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Bangkok to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight to Ontario from Bangkok, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 4.9 km from the centre of Ontario. There are 0 flights from Bangkok to Ontario per day from 0 different airlines.

  • How long is the flight from Bangkok to Ontario?

    China Airlines can get you from Bangkok to Ontario in just under 19h 20m. Your travel time can differ by up to . There are 13325 km between Bangkok and Ontario.

  • Can I find deals for flights from Bangkok to Ontario that include hotel bookings?

    Yes. In addition to deals on Bangkok to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bangkok to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bangkok to Ontario.

  • Can I find deals for business class flights from Bangkok to Ontario?

    Yes. Cheapflights offers flight deals from Bangkok to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Fly with Cheapflights

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How does Cheapflights help users find flights from Bangkok to Ontario?

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Bangkok to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Bangkok to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Bangkok to Ontario with no change fees.

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

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

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