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

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

What airlines fly to Thailand?

Singapore Airlines, Asiana Airlines and China 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 32% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 20 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 April 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.

$459 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.

12:45 am - 12:10 pm

ONT

BKK

21h 25m

1 stop

1:20 pm - 6:00 pm

BKK

ONT

18h 40m

1 stop

$823China Airlines

Thu, Sep 10 - Fri, Sep 25

12:10 am - 1:25 am

ONT

BKK

35h 15m

1 stop

5:30 pm - 6:00 pm

BKK

ONT

38h 30m

1 stop

$825China Airlines

Wed, May 6 - Wed, May 20

12:45 am - 4:20 pm

ONT

BKK

25h 35m

1 stop

10:50 am - 6:00 pm

BKK

ONT

21h 10m

1 stop

$832China Airlines

Thu, Sep 10 - Fri, Sep 25

12:10 am - 1:25 am

ONT

BKK

35h 15m

1 stop

2:40 am - 6:00 pm

BKK

ONT

29h 20m

1 stop

$833China Airlines

Tue, Sep 22 - Tue, Oct 6

12:45 am - 9:25 pm

ONT

HKT

30h 40m

2 stops

8:55 am - 6:00 pm

HKT

ONT

47h 05m

2 stops

$938Multiple Airlines

Tue, Sep 8 - Tue, Sep 15

7:57 pm - 10:20 am

ONT

CNX

24h 23m

2 stops

11:20 am - 6:40 pm

CNX

ONT

21h 20m

1 stop

$981Multiple Airlines

Sat, Aug 29 - Sat, Sep 12

7:00 am - 10:10 pm

ONT

HKT

25h 10m

2 stops

11:25 pm - 5:10 pm

HKT

ONT

31h 45m

2 stops

$990Delta

Mon, May 4 - Wed, May 13

7:00 am - 10:10 pm

ONT

HKT

25h 10m

2 stops

11:25 pm - 5:10 pm

HKT

ONT

31h 45m

2 stops

$995Korean Air

Tue, Apr 21 - Wed, May 13

7:00 am - 10:10 pm

ONT

HKT

25h 10m

2 stops

11:25 pm - 12:19 pm

HKT

ONT

50h 54m

2 stops

$996Delta

Wed, May 6 - Thu, May 14

7:00 am - 10:10 pm

ONT

HKT

25h 10m

2 stops

11:25 pm - 10:40 pm

HKT

ONT

37h 15m

2 stops

$1,007Korean Air

Thu, Sep 10 - Mon, Sep 14

Korean Air flights from Ontario to Thailand

Our best Korean Air deals on Ontario to Thailand flight tickets

Korean Air

Apr 27

ONT7:00 amOntario

24h 45m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

May 12

BKK9:50 amBangkok Suvarnabhumi

45h 20m

2 stops

ONT5:10 pmOntario

$867

Korean Air

Apr 22

ONT7:00 amOntario

26h 35m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

May 6

BKK11:30 pmBangkok Suvarnabhumi

31h 40m

2 stops

ONT5:10 pmOntario

$895

Korean Air

Apr 28

ONT7:00 amOntario

26h 35m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

May 21

BKK9:40 pmBangkok Suvarnabhumi

33h 30m

2 stops

ONT5:10 pmOntario

$896

China Airlines flights from Ontario to Thailand

Our best China Airlines deals on Ontario to Thailand flight tickets

China Airlines

Sep 10

ONT12:45 amOntario

21h 25m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

Sep 25

BKK1:20 pmBangkok Suvarnabhumi

18h 40m

1 stop

ONT6:00 pmOntario

$823

China Airlines

May 6

ONT12:10 amOntario

35h 15m

1 stop

BKK1:25 amBangkok Suvarnabhumi

May 20

BKK5:30 pmBangkok Suvarnabhumi

38h 30m

1 stop

ONT6:00 pmOntario

$825

China Airlines

Sep 10

ONT12:45 amOntario

25h 35m

1 stop

BKK4:20 pmBangkok Suvarnabhumi

Sep 25

BKK10:50 amBangkok Suvarnabhumi

21h 10m

1 stop

ONT6:00 pmOntario

$832

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 9/10

12:45 am-12:10 pm

1 stop21h 25m

Bangkok Suvarnabhumi

Fri 9/25

1:20 pm-6:00 pm

1 stop18h 40m

$823

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 5/6

12:10 am-1:25 am

1 stop35h 15m

Bangkok Suvarnabhumi

Wed 5/20

5:30 pm-6:00 pm

1 stop38h 30m

$825

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 9/10

12:45 am-4:20 pm

1 stop25h 35m

Bangkok Suvarnabhumi

Fri 9/25

10:50 am-6:00 pm

1 stop21h 10m

$832

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 9/22

12:10 am-1:25 am

1 stop35h 15m

Bangkok Suvarnabhumi

Tue 10/6

2:40 am-6:00 pm

1 stop29h 20m

$833

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Tue 9/8

12:45 am-9:25 pm

2 stops30h 40m

Phuket City

Tue 9/15

8:55 am-6:00 pm

2 stops47h 05m

$938

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sat 8/29

7:57 pm-10:20 am

2 stops24h 23m

Chiang Mai

Sat 9/12

11:20 am-6:40 pm

1 stop21h 20m

$981

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Mon 5/4

7:00 am-10:10 pm

2 stops25h 10m

Phuket City

Wed 5/13

11:25 pm-5:10 pm

2 stops31h 45m

$990

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Tue 4/21

7:00 am-10:10 pm

2 stops25h 10m

Phuket City

Wed 5/13

11:25 pm-5:10 pm

2 stops31h 45m

$995

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Wed 5/6

7:00 am-10:10 pm

2 stops25h 10m

Phuket City

Thu 5/14

11:25 pm-12:19 pm

2 stops50h 54m

$996

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Thu 9/10

7:00 am-10:10 pm

2 stops25h 10m

Phuket City

Mon 9/14

11:25 pm-10:40 pm

2 stops37h 15m

$1,007

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 February is also very affordable. Most momondo users find prices during this month for around $783.

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 $954 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 $801 on momondo.

Can stopping save me money on Ontario to Thailand flights?

You could potentially save up to 3% 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

Frequently asked questions about flying 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 4 operators available for flights from Ontario Airport to Thailand as of April 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 8,393 reviews	Search Delta flights
Korean Air	PriceFrom $616	Free Cancellation	Rating 8.4 1,205 reviews	Search Korean Air flights
China Airlines	PriceFrom $717	Free Cancellation	Rating 8.3 816 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $763	Free Cancellation	Rating 8.9 295 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.