What is the cheapest airline that flies from Ontario to Thailand?

Delta, Korean Air, and China Airlines are the most popular carriers operating from Ontario to Thailand

What airlines fly to Thailand?

Singapore Airlines, Cathay Pacific and Asiana Airlines are the top three most popular airlines that fly to Thailand from Ontario according to our data. Singapore Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 22 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Thailand?

Prices for flights from Ontario Airport to Thailand refresh daily.

How many operators does momondo search for flights from Ontario Airport to Thailand?

There are 4 operators available for flights from Ontario Airport to Thailand as of February 2026.

How old do you have to be to fly from Ontario Airport to Thailand?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Thailand.

What documentation or ID do you need to fly to Thailand?

The travel and health documents you'll need for your trip to Thailand may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Thailand. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$328 Cheap Flights from Ontario to Thailand in 2026

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Find the cheapest flights from Ontario to Thailand

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 11:40 pm

ONT

BKK

26h 40m

2 stops

9:50 am - 5:10 pm

BKK

ONT

21h 20m

2 stops

$661Delta

Sun, Apr 19 - Thu, May 28

6:00 am - 12:45 am

ONT

BKK

28h 45m

2 stops

2:05 am - 5:13 pm

BKK

ONT

29h 08m

2 stops

$666Korean Air

Tue, Mar 10 - Mon, Mar 16

7:00 am - 1:35 pm

ONT

BKK

40h 35m

2 stops

11:30 pm - 5:10 pm

BKK

ONT

31h 40m

2 stops

$671Korean Air

Mon, Apr 13 - Thu, May 14

7:00 am - 11:40 pm

ONT

BKK

26h 40m

2 stops

9:50 am - 10:19 pm

BKK

ONT

26h 29m

2 stops

$711Delta

Tue, May 5 - Sat, May 23

7:00 am - 11:40 pm

ONT

BKK

26h 40m

2 stops

9:40 pm - 10:19 pm

BKK

ONT

38h 39m

2 stops

$716Delta

Tue, Apr 14 - Fri, May 15

12:10 am - 9:45 am

ONT

BKK

19h 35m

1 stop

1:20 pm - 6:00 pm

BKK

ONT

18h 40m

1 stop

$726China Airlines

Sat, Apr 4 - Tue, Apr 21

6:49 pm - 9:35 am

ONT

BKK

24h 46m

2 stops

7:00 am - 5:52 pm

BKK

ONT

24h 52m

2 stops

$727United Airlines

Mon, Apr 27 - Tue, May 19

12:10 am - 4:20 pm

ONT

BKK

26h 10m

1 stop

2:40 am - 6:00 pm

BKK

ONT

29h 20m

1 stop

$729China Airlines

Sat, Apr 4 - Mon, Apr 20

12:10 am - 12:10 pm

ONT

BKK

22h 00m

1 stop

1:20 pm - 6:00 pm

BKK

ONT

18h 40m

1 stop

$732China Airlines

Sat, Apr 4 - Tue, Apr 21

12:10 am - 4:20 pm

ONT

BKK

26h 10m

1 stop

1:20 pm - 6:00 pm

BKK

ONT

18h 40m

1 stop

$736China Airlines

Sun, Mar 29 - Wed, Apr 15

China Airlines flights from Ontario to Thailand

Our best China Airlines deals on Ontario to Thailand flight tickets

China Airlines

Apr 4

ONT12:10 amOntario

19h 35m

1 stop

BKK9:45 amBangkok Suvarnabhumi

Apr 21

BKK1:20 pmBangkok Suvarnabhumi

18h 40m

1 stop

ONT6:00 pmOntario

$726

China Airlines

Apr 4

ONT12:10 amOntario

26h 10m

1 stop

BKK4:20 pmBangkok Suvarnabhumi

Apr 20

BKK2:40 amBangkok Suvarnabhumi

29h 20m

1 stop

ONT6:00 pmOntario

$729

China Airlines

Apr 4

ONT12:10 amOntario

22h 00m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

Apr 21

BKK1:20 pmBangkok Suvarnabhumi

18h 40m

1 stop

ONT6:00 pmOntario

$732

United Airlines flights from Ontario to Thailand

Our best United Airlines deals on Ontario to Thailand flight tickets

United Airlines

Apr 27

ONT6:49 pmOntario

24h 46m

2 stops

BKK9:35 amBangkok Suvarnabhumi

May 19

BKK7:00 amBangkok Suvarnabhumi

24h 52m

2 stops

ONT5:52 pmOntario

$727

United Airlines

Feb 22

ONT1:50 pmOntario

48h 20m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Mar 11

BKK4:55 pmBangkok Suvarnabhumi

20h 02m

2 stops

ONT10:57 pmOntario

$741

United Airlines

Feb 19

ONT6:10 amOntario

38h 15m

2 stops

BKK11:25 amBangkok Suvarnabhumi

Mar 10

BKK4:55 pmBangkok Suvarnabhumi

38h 46m

2 stops

ONT5:41 pmOntario

$743

Fly from

Fly to

Route

Depart

Return

Price

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 4/19

7:00 am-11:40 pm

2 stops26h 40m

Bangkok Suvarnabhumi

Thu 5/28

9:50 am-5:10 pm

2 stops21h 20m

$661

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 3/10

6:00 am-12:45 am

2 stops28h 45m

Bangkok Suvarnabhumi

Mon 3/16

2:05 am-5:13 pm

2 stops29h 08m

$666

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 4/13

7:00 am-1:35 pm

2 stops40h 35m

Bangkok Suvarnabhumi

Thu 5/14

11:30 pm-5:10 pm

2 stops31h 40m

$671

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 5/5

7:00 am-11:40 pm

2 stops26h 40m

Bangkok Suvarnabhumi

Sat 5/23

9:50 am-10:19 pm

2 stops26h 29m

$711

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 4/14

7:00 am-11:40 pm

2 stops26h 40m

Bangkok Suvarnabhumi

Fri 5/15

9:40 pm-10:19 pm

2 stops38h 39m

$716

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sat 4/4

12:10 am-9:45 am

1 stop19h 35m

Bangkok Suvarnabhumi

Tue 4/21

1:20 pm-6:00 pm

1 stop18h 40m

$726

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 4/27

6:49 pm-9:35 am

2 stops24h 46m

Bangkok Suvarnabhumi

Tue 5/19

7:00 am-5:52 pm

2 stops24h 52m

$727

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sat 4/4

12:10 am-4:20 pm

1 stop26h 10m

Bangkok Suvarnabhumi

Mon 4/20

2:40 am-6:00 pm

1 stop29h 20m

$729

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sat 4/4

12:10 am-12:10 pm

1 stop22h 00m

Bangkok Suvarnabhumi

Tue 4/21

1:20 pm-6:00 pm

1 stop18h 40m

$732

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 3/29

12:10 am-4:20 pm

1 stop26h 10m

Bangkok Suvarnabhumi

Wed 4/15

1:20 pm-6:00 pm

1 stop18h 40m

$736

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Thailand

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Thailand?

The month of January is, on average, the cheapest month to fly to Thailand from Ontario, with most prices found around $764. If you are unable to visit Thailand during the month of January, then departing from Ontario during the month March is also very affordable. Most momondo users find prices during this month for around $773.

How far in advance should I book a flight to Thailand?

You are more likely to see cheaper flights to Thailand from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $958 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Ontario for as low as $786 on momondo.

Can stopping save me money on Ontario to Thailand flights?

You could potentially save up to 21% on your flight if you consider stops on a Ontario to Thailand flight.

Cheap Ontario to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Thailand

Fastest flight time	20h 00m
Direct flights	None

The fastest flight from Ontario to Thailand takes 20h 00m

There are no direct flights from Ontario to Thailand. There are no popular flight routes from Ontario to Thailand.

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Thailand?
Prices for flights from Ontario Airport to Thailand refresh daily.
How many operators does momondo search for flights from Ontario Airport to Thailand?
There are 4 operators available for flights from Ontario Airport to Thailand as of February 2026.
How old do you have to be to fly from Ontario Airport to Thailand?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Thailand.
What documentation or ID do you need to fly to Thailand?
The travel and health documents you'll need for your trip to Thailand may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Thailand. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ontario to Thailand

Compare and see reviews for airlines that fly from Ontario to Thailand with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $457	Free Cancellation	Rating 7.9 8,180 reviews	Search Delta flights
Korean Air	PriceFrom $616	Free Cancellation	Rating 8.4 1,191 reviews	Search Korean Air flights
China Airlines	PriceFrom $718	Free Cancellation	Rating 8.3 803 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $756	Free Cancellation	Rating 8.9 273 reviews	Search STARLUX Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Thailand?

It is quick and easy to find Ontario to Thailand flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Thailand that suits you.

Can I find flights from Ontario to Thailand with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Thailand from Ontario with this policy.

How can momondo help me find flights from Ontario to Thailand?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Thailand.

I’m not ready to book a flight from Ontario to Thailand right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Thailand now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Thailand and let you know when they change.