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 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 24 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 July 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.

$384 Cheap Flights from Ontario to Thailand in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:20 am - 11:35 pm

ONT

BKK

27h 15m

2 stops

2:35 am - 10:40 pm

BKK

ONT

34h 05m

2 stops

$757Korean Air

Mon, Aug 31 - Mon, Sep 14

11:30 pm - 12:00 pm

ONT

BKK

22h 30m

1 stop

5:40 pm - 4:55 pm

BKK

ONT

37h 15m

1 stop

$758STARLUX Airlines

Wed, Oct 7 - Sun, Oct 25

6:20 am - 9:45 pm

ONT

BKK

25h 25m

2 stops

11:30 pm - 10:40 pm

BKK

ONT

37h 10m

2 stops

$765Korean Air

Thu, Sep 10 - Thu, Sep 17

11:55 pm - 4:40 pm

ONT

BKK

26h 45m

1 stop

5:50 pm - 5:05 pm

BKK

ONT

37h 15m

1 stop

$772STARLUX Airlines

Mon, Aug 31 - Tue, Sep 15

12:45 am - 9:45 am

ONT

BKK

19h 00m

1 stop

2:40 am - 6:40 pm

BKK

ONT

30h 00m

1 stop

$801China Airlines

Thu, Aug 27 - Tue, Sep 8

11:50 pm - 1:35 am

ONT

BKK

35h 45m

1 stop

10:55 am - 5:05 pm

BKK

ONT

21h 10m

1 stop

$815China Airlines

Thu, Oct 29 - Wed, Nov 11

6:20 am - 1:05 am

ONT

BKK

28h 45m

2 stops

9:50 am - 10:40 pm

BKK

ONT

26h 50m

2 stops

$820Delta

Mon, Aug 24 - Mon, Sep 14

6:00 am - 11:35 pm

ONT

BKK

27h 35m

2 stops

9:40 pm - 10:40 pm

BKK

ONT

39h 00m

2 stops

$820Delta

Wed, Aug 26 - Sun, Sep 13

7:00 am - 9:30 pm

ONT

BKK

23h 30m

2 stops

12:55 am - 4:12 pm

BKK

ONT

30h 17m

2 stops

$887Multiple Airlines

Mon, Jan 18 - Thu, Feb 4

12:45 am - 10:55 pm

ONT

HKT

32h 10m

2 stops

10:00 pm - 6:40 pm

HKT

ONT

34h 40m

2 stops

$921Multiple Airlines

Wed, Aug 12 - Sat, Aug 29

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STARLUX Airlines flights from Ontario to Thailand

Our best STARLUX Airlines deals on Ontario to Thailand flight tickets

STARLUX Airlines

Oct 7

ONT11:30 pmOntario

22h 30m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

Oct 25

BKK5:40 pmBangkok Suvarnabhumi

37h 15m

1 stop

ONT4:55 pmOntario

$758

STARLUX Airlines

Aug 31

ONT11:55 pmOntario

26h 45m

1 stop

BKK4:40 pmBangkok Suvarnabhumi

Sep 15

BKK5:50 pmBangkok Suvarnabhumi

37h 15m

1 stop

ONT5:05 pmOntario

$772

STARLUX Airlines

Sep 14

ONT11:30 pmOntario

27h 10m

1 stop

BKK4:40 pmBangkok Suvarnabhumi

Oct 9

BKK1:10 pmBangkok Suvarnabhumi

17h 55m

1 stop

ONT5:05 pmOntario

$774

Korean Air flights from Ontario to Thailand

Our best Korean Air deals on Ontario to Thailand flight tickets

Korean Air

Aug 31

ONT6:20 amOntario

27h 15m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Sep 14

BKK2:35 amBangkok Suvarnabhumi

34h 05m

2 stops

ONT10:40 pmOntario

$757

Korean Air

Sep 10

ONT6:20 amOntario

25h 25m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Sep 17

BKK11:30 pmBangkok Suvarnabhumi

37h 10m

2 stops

ONT10:40 pmOntario

$765

Korean Air

Aug 27

ONT6:20 amOntario

25h 25m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Sep 17

BKK2:35 amBangkok Suvarnabhumi

34h 05m

2 stops

ONT10:40 pmOntario

$800

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/31

6:20 am-11:35 pm

2 stops27h 15m

Bangkok Suvarnabhumi

Mon 9/14

2:35 am-10:40 pm

2 stops34h 05m

$757

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 10/7

11:30 pm-12:00 pm

1 stop22h 30m

Bangkok Suvarnabhumi

Sun 10/25

5:40 pm-4:55 pm

1 stop37h 15m

$758

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 9/10

6:20 am-9:45 pm

2 stops25h 25m

Bangkok Suvarnabhumi

Thu 9/17

11:30 pm-10:40 pm

2 stops37h 10m

$765

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/31

11:55 pm-4:40 pm

1 stop26h 45m

Bangkok Suvarnabhumi

Tue 9/15

5:50 pm-5:05 pm

1 stop37h 15m

$772

Quickest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 8/27

12:45 am-9:45 am

1 stop19h 00m

Bangkok Suvarnabhumi

Tue 9/8

2:40 am-6:40 pm

1 stop30h 00m

$801

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 10/29

11:50 pm-1:35 am

1 stop35h 45m

Bangkok Suvarnabhumi

Wed 11/11

10:55 am-5:05 pm

1 stop21h 10m

$815

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/24

6:20 am-1:05 am

2 stops28h 45m

Bangkok Suvarnabhumi

Mon 9/14

9:50 am-10:40 pm

2 stops26h 50m

$820

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 8/26

6:00 am-11:35 pm

2 stops27h 35m

Bangkok Suvarnabhumi

Sun 9/13

9:40 pm-10:40 pm

2 stops39h 00m

$820

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 1/18

7:00 am-9:30 pm

2 stops23h 30m

Bangkok Suvarnabhumi

Thu 2/4

12:55 am-4:12 pm

2 stops30h 17m

$887

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Wed 8/12

12:45 am-10:55 pm

2 stops32h 10m

Phuket City

Sat 8/29

10:00 pm-6:40 pm

2 stops34h 40m

$921

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 from Ontario 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 $981 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 $765 on momondo.

Can stopping save me money on Ontario to Thailand flights?

You could potentially save up to 17% 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 July 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 $427	Free Cancellation	Rating 7.8 8,487 reviews	Search Delta flights
Korean Air	PriceFrom $455	Free Cancellation	Rating 8.4 1,222 reviews	Search Korean Air flights
China Airlines	PriceFrom $718	Free Cancellation	Rating 8.3 838 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $763	Free Cancellation	Rating 8.8 362 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.