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 32% 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.

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

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 June 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.

$424 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.

7:00 am - 1:25 pm

ONT

BKK

39h 25m

2 stops

11:15 pm - 4:56 pm

BKK

ONT

32h 41m

2 stops

$837Korean Air

Mon, Nov 16 - Mon, Dec 21

6:20 am - 9:45 pm

ONT

BKK

25h 25m

2 stops

11:30 pm - 5:17 pm

BKK

ONT

31h 47m

2 stops

$839Delta

Mon, Sep 28 - Sun, Oct 11

7:00 am - 1:05 am

ONT

BKK

28h 05m

2 stops

11:15 pm - 10:43 pm

BKK

ONT

38h 28m

2 stops

$840Delta

Thu, Oct 22 - Sun, Nov 1

7:00 am - 10:55 pm

ONT

CNX

24h 55m

2 stops

12:15 am - 5:17 pm

CNX

ONT

32h 02m

2 stops

$845Korean Air

Mon, Nov 2 - Wed, Nov 11

5:05 pm - 9:45 pm

ONT

BKK

38h 40m

2 stops

9:50 am - 10:40 pm

BKK

ONT

26h 50m

2 stops

$845Delta

Sun, Sep 6 - Tue, Sep 22

6:20 am - 9:45 pm

ONT

BKK

25h 25m

2 stops

11:30 pm - 5:21 pm

BKK

ONT

31h 51m

2 stops

$849Korean Air

Mon, Aug 10 - Tue, Aug 25

6:20 am - 9:45 pm

ONT

BKK

25h 25m

2 stops

2:35 am - 5:21 pm

BKK

ONT

28h 46m

2 stops

$853Korean Air

Thu, Aug 13 - Tue, Aug 25

6:20 am - 9:45 pm

ONT

BKK

25h 25m

2 stops

9:50 am - 10:40 pm

BKK

ONT

26h 50m

2 stops

$867Delta

Thu, Aug 6 - Tue, Sep 22

12:10 am - 8:45 am

ONT

KBV

42h 35m

2 stops

9:25 am - 6:00 pm

KBV

ONT

22h 35m

2 stops

$1,326China Airlines

Mon, Sep 21 - Sun, Oct 4

12:10 am - 8:45 am

ONT

KBV

42h 35m

2 stops

9:25 am - 6:00 pm

KBV

ONT

22h 35m

2 stops

$1,372China Airlines

Thu, Oct 1 - Tue, Oct 6

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Korean Air flights from Ontario to Thailand

Our best Korean Air deals on Ontario to Thailand flight tickets

Korean Air

Nov 16

ONT7:00 amOntario

39h 25m

2 stops

BKK1:25 pmBangkok Suvarnabhumi

Dec 21

BKK11:15 pmBangkok Suvarnabhumi

32h 41m

2 stops

ONT4:56 pmOntario

$837

Korean Air

Nov 2

ONT7:00 amOntario

24h 55m

2 stops

CNX10:55 pmChiang Mai

Nov 11

CNX12:15 amChiang Mai

32h 02m

2 stops

ONT5:17 pmOntario

$845

Korean Air

Aug 10

ONT6:20 amOntario

25h 25m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Aug 25

BKK11:30 pmBangkok Suvarnabhumi

31h 51m

2 stops

ONT5:21 pmOntario

$849

Delta flights from Ontario to Thailand

Our best Delta deals on Ontario to Thailand flight tickets

Delta

Sep 28

ONT6:20 amOntario

25h 25m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Oct 15

BKK9:50 amBangkok Suvarnabhumi

21h 27m

2 stops

ONT5:17 pmOntario

$839

Delta

Oct 22

ONT7:00 amOntario

28h 05m

2 stops

BKK1:05 amBangkok Suvarnabhumi

Nov 1

BKK11:15 pmBangkok Suvarnabhumi

38h 28m

2 stops

ONT10:43 pmOntario

$840

Delta

Sep 6

ONT5:05 pmOntario

40h 30m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Sep 14

BKK9:50 amBangkok Suvarnabhumi

26h 50m

2 stops

ONT10:40 pmOntario

$845

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 11/16

7:00 am-1:25 pm

2 stops39h 25m

Bangkok Suvarnabhumi

Mon 12/21

11:15 pm-4:56 pm

2 stops32h 41m

$837

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 9/28

6:20 am-9:45 pm

2 stops25h 25m

Bangkok Suvarnabhumi

Sun 10/11

11:30 pm-5:17 pm

2 stops31h 47m

$839

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 10/22

7:00 am-1:05 am

2 stops28h 05m

Bangkok Suvarnabhumi

Sun 11/1

11:15 pm-10:43 pm

2 stops38h 28m

$840

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Mon 11/2

7:00 am-10:55 pm

2 stops24h 55m

Chiang Mai

Wed 11/11

12:15 am-5:17 pm

2 stops32h 02m

$845

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 9/6

5:05 pm-9:45 pm

2 stops38h 40m

Bangkok Suvarnabhumi

Tue 9/22

9:50 am-10:40 pm

2 stops26h 50m

$845

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/10

6:20 am-9:45 pm

2 stops25h 25m

Bangkok Suvarnabhumi

Tue 8/25

11:30 pm-5:21 pm

2 stops31h 51m

$849

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 8/13

6:20 am-9:45 pm

2 stops25h 25m

Bangkok Suvarnabhumi

Tue 8/25

2:35 am-5:21 pm

2 stops28h 46m

$853

Quickest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 8/6

6:20 am-9:45 pm

2 stops25h 25m

Bangkok Suvarnabhumi

Tue 9/22

9:50 am-10:40 pm

2 stops26h 50m

$867

OntarioKrabi

ONT - KBV

ONTKBV

Ontario

Mon 9/21

12:10 am-8:45 am

2 stops42h 35m

Krabi

Sun 10/4

9:25 am-6:00 pm

2 stops22h 35m

$1,326

OntarioKrabi

ONT - KBV

ONTKBV

Ontario

Thu 10/1

12:10 am-8:45 am

2 stops42h 35m

Krabi

Tue 10/6

9:25 am-6:00 pm

2 stops22h 35m

$1,372

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 July is, on average, the cheapest month to fly to Thailand from Ontario, with most prices found around $457. If you are unable to visit Thailand during the month of July, then departing from Ontario during the month October is also very affordable. Most momondo users find prices during this month for around $604.

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 $951 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 $761 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	19h 35m
Direct flights	None

The fastest flight from Ontario to Thailand takes 19h 35m

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 June 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 7.8 8,424 reviews	Search Delta flights
Korean Air	PriceFrom $616	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
China Airlines	PriceFrom $717	Free Cancellation	Rating 8.3 829 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $763	Free Cancellation	Rating 8.9 344 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.