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$480+ 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
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 Thursday

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 November 20, 2024.

Popular in

June

Cheapest in

October

Round-trip from

$854
(United Airlines)

One-way from

$484
(Delta)
High demand for flights, 34% potential price rise
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Best time to find cheap flights, 19% potential price drop
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From Ontario to Bangkok
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One-way flight from Ontario to Bangkok
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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 November 20, 2024.

This oojo deal was found by Cheapflights users on 11/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2410:45 pmONT - BKK
1 stop35h 50mChina Airlines
Thu 12/52:35 amBKK - ONT
1 stop29h 15mChina Airlines
Deal found 11/20$952
This KAYAK deal was found by Cheapflights users on 11/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/275:40 amONT - BKK
2 stops40h 35mKorean Air
Sat 12/79:40 amBKK - ONT
2 stops46h 14mKorean Air
Deal found 11/19$1,029
This Travelocity deal was found by Cheapflights users on 11/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/204:15 pmONT - BKK
2 stops27h 55mMultiple Airlines
Fri 11/225:10 pmBKK - ONT
2 stops21h 49mMultiple Airlines
Deal found 11/20$1,253
This Delta deal was found by Cheapflights users on 11/19. 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.
Mon 12/25:40 amONT - BKK
2 stops26h 40mDelta
Tue 12/109:30 pmBKK - ONT
2 stops34h 24mDelta
Deal found 11/19$1,384
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/310:45 pmONT - DMK
1 stop24h 10mMultiple Airlines
Tue 12/247:45 amDMK - ONT
1 stop24h 05mMultiple Airlines
Deal found 11/19$1,435

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 1/22

10:47 am-12:05 am

2 stops46h 18m

Bangkok Suvarnabhumi

Wed 3/12

7:10 am-10:45 pm

2 stops29h 35m

$852

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 2/13

6:00 am-9:30 pm

2 stops24h 30m

Bangkok Suvarnabhumi

Mon 2/24

1:00 am-3:25 pm

2 stops29h 25m

$864

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 3/11

11:45 pm-1:05 pm

1 stop23h 20m

Bangkok Suvarnabhumi

Mon 3/24

2:35 am-5:50 pm

1 stop29h 15m

$866

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 1/19

4:11 pm-6:35 am

2 stops47h 24m

Bangkok Suvarnabhumi

Mon 2/17

3:15 pm-9:27 pm

2 stops45h 12m

$875

OntarioBangkok

ONT - DMK

ONTDMK

Ontario

Tue 4/8

12:10 am-10:10 pm

2 stops32h 00m

Bangkok Don Mueang Intl

Wed 4/30

9:15 pm-6:05 pm

3 stops34h 50m

$1,220

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 2/27

8:26 am-12:10 am

3 stops48h 44m

$480

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 3/19

5:40 am-9:30 pm

2 stops25h 50m

$484

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 1/28

10:45 pm-9:50 am

1 stop20h 05m

$500

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 2/25

6:00 am-11:35 pm

2 stops26h 35m

$538

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 1/15

6:15 am-12:05 am

2 stops26h 50m

$540

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 13 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 November 15, 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, September is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $979). 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 November 20, 2024.

It’s typically best to fly out from Ontario to Bangkok in the morning. Doing so could potentially save you 25% 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 November 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
8.5
Very good
1,024 reviews

Overall

8.5

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Korean Air
8.5
Very good
1,024 reviews
Korean Air
8.5
Very good
1,024 reviews

Overall

8.5

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Japan Airlines
8.3
Very good
1,460 reviews
Korean Air
8.5
Very good
1,024 reviews

Overall

8.5

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

China Airlines
8.3
Very good
778 reviews
Korean Air
8.5
Very good
1,024 reviews

Overall

8.5

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Delta
8.0
Very good
8,756 reviews
Korean Air
8.5
Very good
1,024 reviews

Overall

8.5

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Qatar Airways
7.5
Good
3,831 reviews
Korean Air
8.5
Very good
1,024 reviews

Overall

8.5

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

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 United Airlines. Our recent data shows that you can find tickets from as low as $854 on this airline. Additional options worth looking into are China Airlines and Korean Air, starting at $866 and $869 round-trip. United Airlines is priced at 20% 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 United 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, September is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $979). 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$684Average$881FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$785Average$871FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$795Average$1,905FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$806Average$1,169FlexibilityNo cancel feeOn-time79%
DeltaCheapest$807Average$996FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$829Average$953FlexibilityNo cancel feeOn-time70%
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