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BKK - ONT

Find cheap flights from Bangkok to Ontario from $545

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bangkok to Ontario departing on 5/23. 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.
1 adult
0 bags
Wed 6/12
Wed 6/19

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bangkok to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bangkok to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 41,771,603 times on KAYAK, and here is why:

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Cheap flight deals from Bangkok to Ontario (BKK-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bangkok to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
9:35 am - 12:45 amBKK-ONT
29h 10m2 stops
6:00 am - 12:05 amONT-BKK
27h 05m2 stops
$843United Airlines
Find Deal
Mon, Sep 9 - Wed, Nov 13
7:00 am - 12:45 amBKK-ONT
31h 45m2 stops
6:00 am - 12:05 amONT-BKK
28h 05m2 stops
$845United Airlines
Find Deal
Mon, Aug 26 - Mon, Oct 28
7:00 am - 5:22 pmBKK-ONT
24h 22m2 stops
7:40 am - 4:35 amONT-BKK
30h 55m2 stops
$847United Airlines
Find Deal
Mon, Sep 16 - Wed, Sep 25
9:35 am - 12:45 amBKK-ONT
53h 10m2 stops
6:45 pm - 3:30 pmONT-BKK
30h 45m2 stops
Wed, Aug 21 - Tue, Sep 17
8:05 am - 3:20 pmBKK-ONT
21h 15m2 stops
12:51 pm - 5:05 amONT-BKK
49h 14m2 stops
Tue, Oct 29 - Wed, Nov 6
1:20 pm - 6:40 pmBKK-ONT
19h 20m1 stop
12:10 am - 9:45 amONT-BKK
19h 35m1 stop
$883China Airlines
Find Deal
Sun, Sep 15 - Fri, Sep 27
2:05 pm - 5:35 pmBKK-ONT
17h 30m1 stop
10:45 pm - 9:50 amONT-BKK
20h 05m1 stop
$888China Airlines
Find Deal
Wed, Oct 30 - Thu, Nov 7
8:05 am - 3:20 pmBKK-ONT
21h 15m2 stops
6:00 am - 11:35 pmONT-BKK
26h 35m2 stops
$1,178Japan Airlines
Find Deal
Tue, Oct 29 - Mon, Nov 4
8:05 am - 5:44 pmBKK-ONT
23h 39m2 stops
6:00 am - 11:35 pmONT-BKK
26h 35m2 stops
$1,239Japan Airlines
Find Deal
Sun, Oct 27 - Mon, Nov 4
1:00 am - 6:03 pmBKK-ONT
32h 03m2 stops
7:00 am - 12:20 amONT-BKK
26h 20m2 stops
$1,463Delta
Find Deal
Sun, Nov 3 - Thu, Nov 7

Flights from Bangkok to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Bangkok to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Bangkok to Ontario?

The average price of all flights from Bangkok Suvarnabhumi Airport to Ontario clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Ontario on a Tuesday and more expensive on a Saturday. On your return trip to Bangkok, you should consider flying back on a Monday, and avoid Fridays for better deals.

What is the cheapest month to fly from Bangkok Suvarnabhumi Airport to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Bangkok Suvarnabhumi Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Bangkok Suvarnabhumi Airport to Ontario is April, where tickets cost $895 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $2,011 and $1,316 respectively.

Which airlines provide the cheapest flights from Bangkok to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, China Airlines offered the best one-way deal for that route, at $545. KAYAK users also found Bangkok to Ontario round-trip flights on United Airlines from $843 and on China Airlines from $883.

Good to know

Low season

February

High season

October

Cheapest flight

$545
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Bangkok to Ontario

When to book flights from Bangkok to Ontario

Are your dates flexible? Find out the best times to travel from Bangkok to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Bangkok to Ontario flights

  • What is the cheapest flight from Bangkok Suvarnabhumi Airport to Ontario?

    In the last 3 days, the lowest price for a flight from Bangkok Suvarnabhumi Airport to Ontario was $545 for a one-way ticket and $843 for a round-trip.

  • Do I need a passport to fly between Bangkok and Ontario?

    A passport is required to fly from Bangkok to Ontario.

  • Which aircraft models fly most regularly from Bangkok to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Bangkok to Ontario?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Bangkok and Ontario, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Bangkok to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Bangkok to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bangkok to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Bangkok is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Bangkok to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Bangkok with another airline. Booking your flights between Bangkok and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bangkok to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Bangkok up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Bangkok to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Bangkok to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bangkok to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
China AirlinesOverall score based on 916 reviews
8.1Entertainment
8.0Comfort
8.6Crew
7.8Food
8.3Boarding
Airline reviews

My flight to Los Angeles was canceled Had to book another flight and you charged me extra $500 Very bad experience

2.0 MediocreArieh, Apr 2024BKK - TPE
Read more about China Airlines reviews

My flight to Los Angeles was canceled Had to book another flight and you charged me extra $500 Very bad experience

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

The plane was uncomfortable. I paid extra for more legroom but the seat was still uncomfortable. Other seats on the same exact row didn’t have to pay extra but still have extra legroom. I didn’t understand why I needed to pay $170 for. It was Iike China airline just wants to make money off their passengers. It was unfair.

It was a 2 hour flight to Taiwan. Lunch was served. China Airlines goes above and beyond for their passengers.

Liked that I could pick my seat and have a special meal without an extra charge. Luggage is reasonable for overseas trip. What could have been better is boarding and leaving on time.

It felt like a new plane. Decent leg room in economy, food was fine, and the plane didn’t feel super dry and uncomfortable.

Free Wi-Fi could have been better in the Airport.

3 of the 4 flights had delays despite the weather being fine, but still managed to make all connections

Ask flight attendant for water during flight and she was a little rude get the water.

Baggage made it successfully to destination despite short layover. Appreciate that.

Book cheap flights from Bangkok to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Bangkok to Ontario found on KAYAK in the last 72 hours.
5/23Thu
1 stopChina Airlines
38h 35mBKK-ONT
$545
8/29Thu
1 stopChina Airlines
30h 00mBKK-ONT
$553
9/30Mon
2 stopsJapan Airlines
21h 28mBKK-ONT
$592
10/20Sun
2 stopsJapan Airlines
21h 16mBKK-ONT
$599
6/5Wed
2 stopsUnited Airlines
50h 52mBKK-ONT
$601
6/24Mon
2 stopsUnited Airlines
29h 27mBKK-ONT
$602
8/27Tue
2 stops
24h 56mBKK-ONT
$647
5/31Fri
2 stops
39h 35mBKK-ONT
$698
7/2Tue
2 stopsAmerican Airlines
38h 04mBKK-ONT
$856
11/7Thu
2 stopsAmerican Airlines
30h 39mBKK-ONT
$1,178

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Last minute flights from Bangkok to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Bangkok to Ontario that are departing in the next 10 days.
5/14Tue
multi-stopUnited Airlines
27h 29mBKK-ONT
5/21Tue
multi-stopUnited Airlines
27h 55mONT-BKK
$884
5/16Thu
multi-stopChina Airlines
38h 35mBKK-ONT
5/18Sat
multi-stopChina Airlines
19h 35mONT-BKK
$1,017
5/14Tue
multi-stopChina Airlines
21h 05mBKK-ONT
5/20Mon
multi-stopChina Airlines
19h 35mONT-BKK
$1,173
5/16Thu
multi-stopChina Airlines
38h 35mBKK-ONT
5/20Mon
multi-stopChina Airlines
26h 10mONT-BKK
$1,187
5/14Tue
multi-stop
24h 05mBKK-ONT
5/20Mon
multi-stop
28h 50mONT-BKK
$1,449
5/14Tue
multi-stop
24h 05mBKK-ONT
5/19Sun
multi-stop
28h 50mONT-BKK
$1,461
5/16Thu
multi-stop
38h 35mBKK-ONT
5/20Mon
multi-stop
28h 50mONT-BKK
$1,511
5/16Thu
multi-stop
38h 35mBKK-ONT
5/19Sun
multi-stop
28h 50mONT-BKK
$1,523
5/14Tue
multi-stopEtihad Airways
50h 54mBKK-ONT
5/30Thu
multi-stopEtihad Airways
34h 45mONT-BKK
$2,255
5/18Sat
multi-stopEtihad Airways
33h 34mBKK-ONT
5/31Fri
multi-stopEtihad Airways
42h 10mONT-BKK
$8,290

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Bangkok - Ontario Flights

Departure:

Bangkok (undefined)Thailand

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Bangkok

Cabin classes: