Cheap flights from Ontario (ONT) to Bangkok (BKK)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
Ontario (ONT) to Bangkok (BKK)

All the information you need to plan the best ONT to BKK flight in 2021: compare Ontario to Bangkok flight prices with the expected peak season, weather and rainfall in Bangkok.
ONT - TH1
Price
$652 - $1,001
TH1
Temperature
78.8 - 86 °F
TH1
Precipitation
0.4 - 12.6 inches

Popular in

December

High demand for flights, 26% potential price rise

Cheapest in

September

Best time to find cheap flights, 12% potential price drop

Round-trip from

$652

From Ontario to Bangkok

One-way from

$529

One-way flight from Ontario to Bangkok

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Ontario to Bangkok?

Find a great deal and save up to 23% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Bangkok within the next two weeks, with the cheapest ticket starting at $650.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, April can be a great choice for travel to Bangkok. Flights to Bangkok from Ontario in April are about $610 on average during April, but can be found for as low as $406.

When is the cheapest time to fly from Ontario to Bangkok (ONT - TH1)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Bangkok as you normally would.

Cheap flights from Ontario to Bangkok in October, November 2021

The best prices found for ONT to BKK flights for October, November
31 Oct - 27 Nov
$879pp
ONT
Ontario
American Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
American Airlines
   
2 STOPS
ONT
Ontario
21 Oct - 28 Oct
$880pp
ONT
Ontario
American Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
American Airlines
   
2 STOPS
ONT
Ontario
3 Nov - 23 Nov
$883pp
ONT
Ontario
American Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
American Airlines
   
2 STOPS
ONT
Ontario

Ontario to Bangkok 2021 flight deals

Cheap flights to Bangkok from Ontario found for this year
1 Dec - 20 Dec
$826pp
ONT
Ontario
Japan Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
   
2 STOPS
ONT
Ontario
1 Dec - 31 Dec
$863pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Multiple Airlines
     
3 STOPS
ONT
Ontario
19 Oct - 26 Oct
$872pp
ONT
Ontario
American Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
American Airlines
   
2 STOPS
ONT
Ontario

Last minute flights from Ontario to Bangkok

Late deals on round-trip flights to Bangkok from Ontario, departing today and this week
31 Oct - 27 Nov
$879pp
ONT
Ontario
American Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
American Airlines
   
2 STOPS
ONT
Ontario
31 Oct - 10 Jan
$880pp
ONT
Ontario
American Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
American Airlines
   
2 STOPS
ONT
Ontario
31 Oct - 24 Nov
$883pp
ONT
Ontario
American Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
American Airlines
   
2 STOPS
ONT
Ontario

One-way flights to Bangkok from Ontario

The cheapest one-way flights from Ontario to Bangkok
1:00 am - 11:20 am
Japan Airlines
2 Stops
43h 20m
ONT - BKK
Japan Airlines
$529
Ovago
7:40 pm - 12:05 am
Multiple Airlines
2 Stops
37h 25m
ONT - BKK
Multiple Airlines
6:30 pm - 11:20 am
American Airlines
2 Stops
49h 50m
ONT - BKK
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ontario</span> to <span class="emphasized">Bangkok</span> flights.

Flight FAQs

From Ontario to Bangkok

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 5 different airlines.

Which airlines flying from Ontario to Bangkok have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Ontario to Bangkok that may be offering flexible cancellation policies are China Airlines, United Airlines, and Thai Airways. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Ontario to Bangkok for under $900 on Cheapflights?

Yes, there are multiple flights from Ontario to Bangkok for under $900. The cheapest flight booked recently is on Japan Airlines for just $826, but on average you can expect to pay $881.

Are there last-minute flights available from Ontario to Bangkok for under $900?

There are currently 20+ open flights from Ontario to Bangkok within the next 7 days for less than $900.

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

Our cheapest airline available from Ontario to Bangkok is Japan Airlines. Our recent data shows that you can find tickets from as low as $826 on this airline. An additional option worth looking into is American Airlines, starting at $874.

What are the most popular airlines that fly from Ontario to Bangkok?

When booking a flight from Ontario to Bangkok, you may want to consider flying on Air China, China Airlines or China Eastern as they are the most popular for this route.

What are the cheapest flights from Ontario to Bangkok?

While on average a flight from Ontario to Bangkok is generally $1,569, our data shows the cheapest flight currently is $360. When looking at the most popular route, (Ontario - Bangkok Suvarnabhumi), you can expect to pay $826 for that flight.

COVID Restrictions

View COVID Travel Restrictions for Bangkok, Thailand

Do I need a COVID test to fly to Bangkok from Ontario?

Information is based on travel restrictions from Ontario to Bangkok

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter Bangkok.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Bangkok.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Bangkok.

Do I need a test to fly back to Ontario from Bangkok?

Returning to Ontario from Bangkok

COVID-19 testing requirements
Visitors from Bangkok must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from Bangkok are not required to quarantine after entering Ontario.

Hide COVID Travel Restrictions for Bangkok, Thailand

Alternative routes for Ontario to Bangkok

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Bangkok

Things to know before you go - useful duration and weather info for your trip from Ontario to Bangkok.
Today's exchange rate
$1 = ฿33.35
Average temperature for October in Bangkok
91.4 °F
Avg rainfall for October in Bangkok
10.9 ″

Airports servicing Ontario

Airports servicing Bangkok

Bangkok Suvarnabhumi (BKK)
Bangkok Don Mueang Intl (DMK)
Home Asia Thailand Bangkok Cheap flights from Ontario to Bangkok