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$547 Find cheap flights from Thailand to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 10/1. 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
Sat 6/29
Sat 7/6

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 for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Flights to Ontario - Travel Insights & Trends

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

What is the cheapest day to fly to Ontario?

The average price of all flights to Ontario clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Ontario is Friday where tickets can be as cheap as $955. On the other hand, the most expensive day to fly is Saturday, where prices are $1,303 on average.

What is the cheapest month to fly to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to Ontario is April, where tickets cost $895 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Thailand is $1,635 and $1,316 respectively. For return trips, the best month to travel is April with an average price of $895.

What is the cheapest time of day to fly to Ontario?

The average price for all flights to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Ontario is generally in the afternoon, when flights cost $963 on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,066.

How long is the flight to Ontario?

The duration of your flight to Ontario depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to Ontario on KAYAK are from Bangkok, which takes 18h 55m, Chiang Mai, which takes 19h 15m, Koh Samui, which takes 24h 40m, and Phuket City, which takes 31h 13m.

How many direct flights to Ontario are there each day?

There are around 90 direct flights from within Thailand to Ontario every day. Most flights depart in the morning, with 11:00 am the most common departure time and 39% of flights departing in the morning.

How many direct flights to Ontario are there each week?

Each week there are around 626 direct flights from within Thailand to Ontario. The most common day for departures is Friday, with 15% of flights taking off on this day.

Good to know

Low season

February

High season

October

Cheapest flight

$547
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Bangkok to Ontario

FAQs - booking Ontario flights

  • How far is Ontario from central Ontario?

    The city center of Ontario is 3 miles from Ontario.

  • What is the name of Ontario’s airport?

    All flights to Ontario land at Ontario. The airport code is ONT,and it can also be referred to as Ontario or Ontario Intl.

  • How does KAYAK find such low prices on flights 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 to Ontario.

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airline offers the most flights to Ontario?

    Of the 8 airlines that fly to Ontario, Southwest offers the most flights, with around 222 per week, followed by Frontier with 94 flights per week.

See more FAQs

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Prefer to fly non-stop to Ontario?

Find which airlines fly direct to Ontario, which days they fly and book direct flights.

Nonstop departures

Thailand to Ontario

Monday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Tuesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Wednesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Thursday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Sunday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

See more direct flights

Nonstop returns

Ontario to Thailand

Monday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Tuesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Wednesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Thursday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Sunday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

See more direct flights
See more direct flights

Top airline flying from Thailand to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 896 reviews
8.6Crew
8.0Comfort
7.8Food
8.0Entertainment
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.

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

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

Staff were good and nice. There should me 3 meals instead of only 2 and snacks.

Excellent staff made the boarding process fast and easy. Friendly crews on both flights from Saigon to Taipei and Taipei to Los Angeles. Will fly China Airlines again.

For a long-haul flight, the crew did a very good job of keeping the lavatories clean and the aisles clear.

The plane was an older model and the entertainment was hard to enjoy on those small screens. I struggled to see clear anything I wanted to watch. The seats where a bit uncomfortable but for a 3 hours flight it was pretty ok. The rest of services were excellent. Highly recommend China Airlines to others.

Book cheap flights from Thailand to Ontario

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Ontario found on KAYAK in the last 72 hours.
10/29Tue
2 stopsUnited Airlines
41h 38mBKK-ONT
11/14Thu
2 stopsUnited Airlines
27h 05mONT-BKK
$841
10/1Tue
2 stopsUnited Airlines
27h 21mBKK-ONT
10/10Thu
2 stopsUnited Airlines
26h 37mONT-BKK
$850
10/29Tue
1 stopChina Airlines
17h 30mBKK-ONT
11/14Thu
1 stopChina Airlines
23h 20mONT-BKK
$941
10/28Mon
1 stopChina Airlines
29h 00mBKK-ONT
11/14Thu
1 stopChina Airlines
20h 05mONT-BKK
$963
8/20Tue
1 stop
39h 10mBKK-ONT
9/11Wed
2 stops
25h 50mONT-BKK
$1,125
7/21Sun
2 stops
24h 53mBKK-ONT
7/22Mon
2 stops
28h 45mONT-BKK
$1,251
6/26Wed
2 stopsAmerican Airlines
27h 49mBKK-ONT
7/10Wed
2 stopsAmerican Airlines
39h 51mONT-BKK
$1,906
7/13Sat
2 stopsEtihad Airways
34h 03mBKK-ONT
9/4Wed
2 stopsEtihad Airways
54h 24mONT-BKK
$2,171
6/14Fri
2 stopsAmerican Airlines
24h 52mBKK-ONT
8/29Thu
2 stopsAmerican Airlines
27h 00mONT-BKK
$2,181
7/1Mon
2 stopsEtihad Airways
34h 03mBKK-ONT
8/5Mon
2 stopsEtihad Airways
54h 13mONT-BKK
$2,526

Search by stops

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Search by price

Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Ontario found on KAYAK in the last 72 hours.
10/1Tue
1 stopChina Airlines
29h 25mBKK-ONT
$547
10/19Sat
1 stopChina Airlines
29h 25mBKK-ONT
$561
9/4Wed
2 stopsJapan Airlines
21h 28mBKK-ONT
$594
10/4Fri
2 stopsJapan Airlines
21h 16mBKK-ONT
$602
10/2Wed
2 stopsUnited Airlines
51h 21mBKK-ONT
$603
6/6Thu
2 stopsUnited Airlines
29h 27mBKK-ONT
$605
6/6Thu
1 stopChina Airlines
29h 25mBKK-ONT
$617
11/22Fri
2 stops
26h 05mDMK-ONT
$642
9/4Wed
2 stops
25h 10mDMK-ONT
$647
10/19Sat
2 stopsKorean Air
35h 54mBKK-ONT
$1,093

Search by stops

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Search by price

Last minute flights 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 to Ontario that are departing in the next 10 days.
6/2Sun
multi-stopUnited Airlines
29h 27mBKK-ONT
8/4Sun
multi-stopUnited Airlines
44h 10mONT-BKK
$880
6/1Sat
multi-stopChina Airlines
29h 25mBKK-ONT
8/3Sat
multi-stopChina Airlines
34h 40mONT-BKK
$926
6/4Tue
multi-stop
23h 00mDMK-ONT
6/6Thu
multi-stop
28h 55mONT-DMK
$1,693
6/4Tue
multi-stop
24h 20mDMK-ONT
6/6Thu
multi-stop
28h 55mONT-DMK
$1,705
6/3Mon
multi-stopChina Airlines
29h 25mBKK-ONT
6/6Thu
multi-stopChina Airlines
35h 15mONT-BKK
$1,761
6/1Sat
multi-stopEtihad Airways
33h 34mBKK-ONT
8/4Sun
multi-stopEtihad Airways
34h 38mONT-BKK
$2,547
6/4Tue
multi-stopEtihad Airways
33h 34mBKK-ONT
6/12Wed
multi-stopEtihad Airways
41h 51mONT-BKK
$2,615
6/4Tue
multi-stopEtihad Airways
33h 34mBKK-ONT
6/11Tue
multi-stopEtihad Airways
42h 10mONT-BKK
$2,617
6/4Tue
multi-stopChina Airlines
29h 25mBKK-ONT
6/10Mon
multi-stopChina Airlines
19h 35mONT-BKK
$3,022
6/4Tue
multi-stopEtihad Airways
33h 34mBKK-ONT
6/11Tue
multi-stopEtihad Airways
34h 45mONT-BKK
$6,790

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Flights to Ontario

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Thailand

Cabin classes: