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 29% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 23 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

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

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 3 operators available for flights from Ontario Airport to Thailand as of January 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.

$314 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.

3:30 pm - 10:55 pm

ONT

CNX

40h 25m

2 stops

12:15 am - 5:12 pm

CNX

ONT

30h 57m

2 stops

$666Delta

Sun, Mar 1 - Tue, Mar 10

7:30 am - 10:10 pm

ONT

HKT

24h 40m

2 stops

11:25 pm - 5:15 pm

HKT

ONT

31h 50m

2 stops

$700Korean Air

Mon, Apr 13 - Wed, Apr 22

6:00 am - 10:10 pm

ONT

HKT

26h 10m

2 stops

11:40 pm - 10:34 pm

HKT

ONT

36h 54m

2 stops

$709Korean Air

Mon, Mar 16 - Mon, Mar 23

6:10 am - 5:10 am

ONT

BKK

32h 00m

2 stops

7:10 am - 5:41 pm

BKK

ONT

24h 31m

2 stops

$719United Airlines

Thu, Feb 19 - Wed, Mar 11

6:49 pm - 9:45 am

ONT

BKK

24h 56m

2 stops

9:35 am - 10:45 pm

BKK

ONT

27h 10m

2 stops

$724United Airlines

Wed, Apr 8 - Thu, Apr 23

6:49 pm - 9:45 am

ONT

BKK

24h 56m

2 stops

7:00 am - 5:47 pm

BKK

ONT

24h 47m

2 stops

$727United Airlines

Wed, Apr 29 - Wed, Jun 10

11:10 pm - 7:10 pm

ONT

CNX

30h 00m

2 stops

10:10 am - 5:05 pm

CNX

ONT

20h 55m

2 stops

$759Multiple Airlines

Sat, Apr 11 - Fri, Apr 24

11:10 pm - 7:10 pm

ONT

CNX

30h 00m

2 stops

10:10 am - 5:05 pm

CNX

ONT

20h 55m

2 stops

$760Multiple Airlines

Wed, Apr 29 - Wed, May 6

12:10 am - 10:20 am

ONT

CNX

20h 10m

1 stop

11:20 am - 6:00 pm

CNX

ONT

20h 40m

1 stop

$802China Airlines

Tue, Apr 28 - Thu, May 7

12:10 am - 10:20 am

ONT

CNX

20h 10m

1 stop

11:20 am - 6:00 pm

CNX

ONT

20h 40m

1 stop

$820China Airlines

Tue, Apr 28 - Wed, May 6

STARLUX Airlines flights from Ontario to Thailand

Our best STARLUX Airlines deals on Ontario to Thailand flight tickets

STARLUX Airlines

Apr 8

ONT11:10 pmOntario

22h 50m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

Apr 25

BKK1:10 pmBangkok Suvarnabhumi

17h 55m

1 stop

ONT5:05 pmOntario

$757

STARLUX Airlines

Mar 2

ONT9:45 pmOntario

27h 45m

1 stop

BKK4:30 pmBangkok Suvarnabhumi

Mar 30

BKK1:10 pmBangkok Suvarnabhumi

17h 55m

1 stop

ONT5:05 pmOntario

$770

STARLUX Airlines

Apr 20

ONT11:10 pmOntario

22h 50m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

May 8

BKK1:10 pmBangkok Suvarnabhumi

17h 55m

1 stop

ONT5:05 pmOntario

$771

United Airlines flights from Ontario to Thailand

Our best United Airlines deals on Ontario to Thailand flight tickets

United Airlines

Apr 8

ONT6:49 pmOntario

24h 56m

2 stops

BKK9:45 amBangkok Suvarnabhumi

Apr 22

BKK9:35 amBangkok Suvarnabhumi

51h 10m

2 stops

ONT10:45 pmOntario

$724

United Airlines

Jan 14

ONT6:00 amOntario

38h 25m

2 stops

BKK11:25 amBangkok Suvarnabhumi

Jan 27

BKK7:10 amBangkok Suvarnabhumi

25h 33m

2 stops

ONT5:43 pmOntario

$726

United Airlines

Apr 29

ONT6:49 pmOntario

24h 56m

2 stops

BKK9:45 amBangkok Suvarnabhumi

Jun 10

BKK7:00 amBangkok Suvarnabhumi

24h 47m

2 stops

ONT5:47 pmOntario

$727

Fly from

Fly to

Route

Depart

Return

Price

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sun 3/1

3:30 pm-10:55 pm

2 stops40h 25m

Chiang Mai

Tue 3/10

12:15 am-5:12 pm

2 stops30h 57m

$666

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Mon 4/13

7:30 am-10:10 pm

2 stops24h 40m

Phuket City

Wed 4/22

11:25 pm-5:15 pm

2 stops31h 50m

$700

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Mon 3/16

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Mon 3/23

11:40 pm-10:34 pm

2 stops36h 54m

$709

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 2/19

6:10 am-5:10 am

2 stops32h 00m

Bangkok Suvarnabhumi

Wed 3/11

7:10 am-5:41 pm

2 stops24h 31m

$719

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 4/8

6:49 pm-9:45 am

2 stops24h 56m

Bangkok Suvarnabhumi

Thu 4/23

9:35 am-10:45 pm

2 stops27h 10m

$724

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 4/29

6:49 pm-9:45 am

2 stops24h 56m

Bangkok Suvarnabhumi

Wed 6/10

7:00 am-5:47 pm

2 stops24h 47m

$727

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sat 4/11

11:10 pm-7:10 pm

2 stops30h 00m

Chiang Mai

Fri 4/24

10:10 am-5:05 pm

2 stops20h 55m

$759

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Wed 4/29

11:10 pm-7:10 pm

2 stops30h 00m

Chiang Mai

Wed 5/6

10:10 am-5:05 pm

2 stops20h 55m

$760

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Tue 4/28

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

Thu 5/7

11:20 am-6:00 pm

1 stop20h 40m

$802

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Tue 4/28

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

Wed 5/6

11:20 am-6:00 pm

1 stop20h 40m

$820

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 $769. If you are unable to visit Thailand during the month of January, then departing from Ontario during the month February is also very affordable. Most momondo users find prices during this month for around $788.

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 $969 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 $804 on momondo.

Can stopping save me money on Ontario to Thailand flights?

You could potentially save up to 7% 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	19h 55m
Direct flights	None

The fastest flight from Ontario to Thailand takes 19h 55m

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 3 operators available for flights from Ontario Airport to Thailand as of January 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
Korean Air	PriceFrom $637	Free Cancellation	Rating 8.4 1,187 reviews	Search Korean Air flights
China Airlines	PriceFrom $718	Free Cancellation	Rating 8.3 798 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $763	Free Cancellation	Rating 8.9 262 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.