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$453+ Cheap flights from Ontario (ONT) to Bangkok

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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Dec 25 — Jan 11
Wed 12/25
Wed 1/1
1 adult, Economy
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The best prices from Ontario to Bangkok are usually found in October or September, booked 63 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Ontario to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Bangkok (TH1). 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 December 20, 2024.

Round-trip from

$871
(oojo)

One-way from

$453
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$1,362
From Ontario to Bangkok
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One-way flight from Ontario to Bangkok
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High demand for flights, 23% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Ontario to Bangkok

Cheapest flights from Ontario to Bangkok
Explore the most affordable flight options available from Ontario to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.

This China Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:45 pmONT - BKK
1 stop23h 20mChina Airlines
Mon 2/1010:55 amBKK - ONT
1 stop20h 55mChina Airlines
Deal found 12/18$1,066
This ScholarTrip deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:00 amONT - BKK
2 stops23h 30mKorean Air
Fri 2/711:15 pmBKK - ONT
2 stops38h 17mKorean Air
Deal found 12/18$1,474
This Mytrip deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:45 pmONT - BKK
1 stop27h 00mMultiple Airlines
Thu 1/168:45 amBKK - ONT
2 stops23h 05mMultiple Airlines
Deal found 12/18$1,798
This Delta deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/266:07 pmONT - BKK
2 stops38h 13mDelta
Tue 12/311:00 amBKK - ONT
2 stops34h 15mDelta
Deal found 12/19$2,219
This Qatar Airways deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:46 amONT - BKK
2 stops28h 09mQatar Airways
Wed 2/53:00 amBKK - ONT
2 stops30h 13mQatar Airways
Deal found 12/18$2,643
This Trip.com deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2010:45 pmONT - DMK
1 stop34h 35mMultiple Airlines
Fri 12/276:25 amDMK - ONT
1 stop25h 25mMultiple Airlines
Deal found 12/19$2,694

Find flights from Ontario to Bangkok within your budget

Customize your flight search to find flights from Ontario to Bangkok 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 2,558,603 searches. Data last updated December 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 4/21

12:10 am-1:25 am

1 stop35h 15m

Bangkok Suvarnabhumi

Tue 4/29

1:20 pm-6:00 pm

1 stop18h 40m

$857

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 1/29

6:00 am-9:30 pm

2 stops24h 30m

Bangkok Suvarnabhumi

Sun 2/16

11:15 pm-3:25 pm

2 stops31h 10m

$900

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 2/16

4:05 pm-9:30 pm

2 stops38h 25m

Bangkok Suvarnabhumi

Wed 2/26

11:15 pm-10:32 pm

2 stops38h 17m

$921

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 4/28

7:05 am-11:55 pm

2 stops26h 50m

Bangkok Suvarnabhumi

Wed 5/14

9:35 am-8:24 pm

2 stops24h 49m

$942

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 2/10

6:00 am-9:30 pm

2 stops24h 30m

Bangkok Suvarnabhumi

Wed 2/26

9:30 pm-3:25 pm

2 stops32h 55m

$988

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 4/1

11:30 am-7:05 am

2 stops29h 35m

Bangkok Suvarnabhumi

Tue 4/8

8:40 am-6:23 pm

2 stops47h 43m

$1,041

OntarioBangkok

ONT - DMK

ONTDMK

Ontario

Tue 2/18

10:45 pm-1:55 pm

1 stop24h 10m

Bangkok Don Mueang Intl

Wed 2/26

7:45 am-4:50 pm

1 stop24h 05m

$1,274

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 2/13

6:00 am-12:20 am

2 stops27h 20m

$474

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 1/29

6:00 am-11:20 pm

2 stops26h 20m

$484

OntarioBangkok

ONT - DMK

ONTDMK

Ontario

Thu 2/20

8:26 am-10:05 pm

2 stops46h 39m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 17 results
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Best time to book a flight from Ontario to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok from Ontario with our price prediction graph.
Estimated round-trip 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 to Bangkok

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

How far ahead should I book a flight from Ontario to Bangkok?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Bangkok. Price data was last updated on December 13, 2024.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Bangkok. 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 to Bangkok?

Currently, October is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $996). Flying from Ontario to Bangkok in June is currently the most expensive (average of $1,585). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to BKK?

Find hourly flight availability from Ontario to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 20, 2024.

It’s typically best to fly out from Ontario to Bangkok in the morning. Doing so could potentially save you 29% on the flight price compared to flying in the afternoon, which is usually more expensive.

Rainfall in Bangkok by month

Plan your trip to Bangkok by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bangkok ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Bangkok when rainfall is around 0.4 in.

Temperature in Bangkok by month

Plan your trip to Bangkok by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bangkok, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated December 20, 2024.
See what other customers who have flown with China Airlines, Korean Air and United Airlines from Ontario to Bangkok have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,023 reviews

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.4
Very good
1,023 reviews
Korean Air
8.4
Very good
1,023 reviews

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,443 reviews
Korean Air
8.4
Very good
1,023 reviews

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

China Airlines
8.3
Very good
754 reviews
Korean Air
8.4
Very good
1,023 reviews

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Alaska Airlines
8.0
Very good
9,545 reviews
Korean Air
8.4
Very good
1,023 reviews

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,601 reviews
Korean Air
8.4
Very good
1,023 reviews

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Bangkok. 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 from for flights from Ontario to Bangkok?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Bangkok from Ontario. Booking flights from Ontario (ONT) to Bangkok should be relatively easy as there are 0 daily outbound flights to Bangkok from 6 different airlines.

  • What are the cheapest airlines flying from Ontario to Bangkok round-trip?

    Our cheapest airline available from Ontario to Bangkok is China Airlines. Our recent data shows that you can find tickets from as low as $871 on this airline. Additional options worth looking into are Korean Air and United Airlines, starting at $900 and $945 round-trip. China Airlines is priced at 18% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Bangkok one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $484. However, be on the lookout for offers from China Airlines and Japan Airlines, as they are both options that can get you from Ontario to Bangkok for a low price.

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

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $996). Flying from Ontario to Bangkok in June is currently the most expensive (average of $1,585). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 6 airlines flying from Ontario to Bangkok

Discover the top 6 airlines that operate flights from Ontario to Bangkok. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$683Average$846FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$785Average$871FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$795Average$1,035FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$806Average$1,169FlexibilityNo cancel feeOn-time79%
DeltaCheapest$807Average$996FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$828Average$942FlexibilityNo cancel feeOn-time70%
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