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$484 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 5/8. 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 5/25
Sat 6/1

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 44,979,812 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 $977. On the other hand, the most expensive day to fly is Saturday, where prices are $1,303 on average.

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 $977 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 $1,114.

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 17h 07m, Chiang Mai, which takes 17h 10m, Koh Samui, which takes 20h 55m, and Phuket City, which takes 25h 00m.

How many direct flights to Ontario are there each day?

There are around 99 direct flights from within Thailand to Ontario every day. Most flights depart in the morning, with 10:00 am the most common departure time and 45% of flights departing in the morning.

How many direct flights to Ontario are there each week?

Each week there are around 693 direct flights from within Thailand to Ontario. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Good to know

Low season

September

High season

October

Cheapest flight

$484
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 22% 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 216 per week, followed by Frontier with 120 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, +22 more

Aeromexico, Air Canada, +23 more

Tuesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Wednesday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Thursday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Friday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Saturday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 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, +22 more

Aeromexico, Air Canada, +23 more

Tuesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Wednesday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Thursday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Friday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Saturday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 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 964 reviews
8.1entertainment
8.0comfort
8.3boarding
8.6crew
7.8food
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.
8/28Wed
2 stopsUnited Airlines
29h 10mBKK-ONT
10/17Thu
2 stopsUnited Airlines
31h 17mONT-BKK
$835
10/15Tue
2 stopsUnited Airlines
24h 43mBKK-ONT
10/29Tue
2 stopsUnited Airlines
28h 05mONT-BKK
$847
5/13Mon
2 stopsUnited Airlines
62h 26mBKK-ONT
8/11Sun
2 stopsUnited Airlines
56h 15mONT-BKK
$854
6/22Sat
2 stops
31h 09mBKK-ONT
7/7Sun
2 stops
38h 39mONT-BKK
$867
5/13Mon
2 stopsUnited Airlines
51h 29mBKK-ONT
8/10Sat
2 stopsUnited Airlines
27h 35mONT-BKK
$878
10/14Mon
1 stopChina Airlines
29h 25mBKK-ONT
10/29Tue
1 stopChina Airlines
23h 20mONT-BKK
$879
10/18Fri
1 stopChina Airlines
18h 45mBKK-ONT
11/15Fri
1 stopChina Airlines
27h 00mONT-BKK
$880
5/24Fri
2 stops
23h 39mBKK-ONT
5/31Fri
2 stops
42h 26mONT-BKK
$931
8/19Mon
2 stopsJapan Airlines
21h 24mBKK-ONT
8/28Wed
2 stopsJapan Airlines
27h 00mONT-BKK
$971
8/14Wed
2 stopsJapan Airlines
21h 24mBKK-ONT
8/17Sat
2 stopsJapan Airlines
27h 00mONT-BKK
$1,028

Search by stops

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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.
5/8Wed
3 stops
57h 05mBKK-ONT
$484
5/8Wed
2 stops
36h 14mBKK-ONT
$490
5/17Fri
1 stopChina Airlines
18h 45mBKK-ONT
$522
5/16Thu
1 stopChina Airlines
38h 35mBKK-ONT
$528
10/3Thu
2 stopsJapan Airlines
20h 27mBKK-ONT
$590
5/22Wed
2 stopsJapan Airlines
21h 21mBKK-ONT
$592
5/8Wed
2 stopsUnited Airlines
27h 29mBKK-ONT
$595
6/18Tue
2 stopsUnited Airlines
26h 52mBKK-ONT
$599
5/17Fri
2 stopsAmerican Airlines
26h 03mBKK-ONT
$799
6/30Sun
2 stopsAmerican Airlines
34h 52mBKK-ONT
$853

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.
4/29Mon
multi-stopUnited Airlines
51h 29mBKK-ONT
5/13Mon
multi-stopUnited Airlines
27h 55mONT-BKK
$837
4/28Sun
multi-stopChina Airlines
29h 25mBKK-ONT
5/12Sun
multi-stopChina Airlines
22h 00mONT-BKK
$1,987
4/29Mon
multi-stopUnited Airlines
30h 04mBKK-ONT
5/4Sat
multi-stopUnited Airlines
32h 35mONT-BKK
$3,418
4/29Mon
multi-stopChina Airlines
21h 05mBKK-ONT
5/3Fri
multi-stopChina Airlines
19h 35mONT-BKK
$4,823
4/28Sun
multi-stopChina Airlines
29h 25mBKK-ONT
5/3Fri
multi-stopChina Airlines
26h 10mONT-BKK
$4,877

Search by stops

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Search by price

Flights to Ontario

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Thailand

Cabin classes: