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 33% 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?

Korean Air, Delta, 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 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.

$397 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 - 10:45 pm

BKK

ONT

34h 10m

2 stops

$769Korean Air

Mon, Aug 10 - Mon, Aug 24

6:20 am - 11:35 pm

ONT

BKK

27h 15m

2 stops

2:35 am - 10:45 pm

BKK

ONT

34h 10m

2 stops

$770Korean Air

Mon, Aug 10 - Sun, Aug 23

6:20 am - 9:45 pm

ONT

BKK

25h 25m

2 stops

11:30 pm - 5:21 pm

BKK

ONT

31h 51m

2 stops

$785Korean Air

Mon, Aug 24 - Wed, Sep 2

6:20 am - 11:35 pm

ONT

BKK

27h 15m

2 stops

2:35 am - 10:45 pm

BKK

ONT

34h 10m

2 stops

$804Korean Air

Mon, Aug 10 - Sun, Aug 23

6:00 am - 9:30 pm

ONT

BKK

24h 30m

2 stops

9:40 am - 4:12 pm

BKK

ONT

21h 32m

2 stops

$820Delta

Tue, Nov 10 - Mon, Nov 23

6:20 am - 9:45 pm

ONT

BKK

25h 25m

2 stops

9:40 am - 5:12 pm

BKK

ONT

21h 32m

2 stops

$821Delta

Tue, Sep 8 - Wed, Oct 28

6:00 am - 10:10 pm

ONT

HKT

26h 10m

2 stops

11:40 pm - 4:12 pm

HKT

ONT

31h 32m

2 stops

$974Multiple Airlines

Tue, Oct 27 - Mon, Nov 9

12:45 am - 10:40 pm

ONT

DMK

31h 55m

2 stops

6:40 am - 6:40 pm

DMK

ONT

26h 00m

2 stops

$1,017Multiple Airlines

Mon, Jul 20 - Tue, Jul 28

12:45 am - 10:20 am

ONT

CNX

19h 35m

1 stop

11:20 am - 6:40 pm

CNX

ONT

21h 20m

1 stop

$1,040China Airlines

Sun, Aug 23 - Mon, Sep 14

12:45 am - 10:20 am

ONT

CNX

19h 35m

1 stop

11:20 am - 6:40 pm

CNX

ONT

21h 20m

1 stop

$1,041China Airlines

Sun, Aug 23 - Mon, Sep 14

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Delta flights from Ontario to Thailand

Our best Delta deals on Ontario to Thailand flight tickets

Delta

Nov 10

ONT6:00 amOntario

24h 30m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Nov 16

BKK9:40 amBangkok Suvarnabhumi

21h 32m

2 stops

ONT4:12 pmOntario

$820

Delta

Sep 8

ONT6:20 amOntario

25h 25m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Oct 28

BKK9:40 amBangkok Suvarnabhumi

21h 32m

2 stops

ONT5:12 pmOntario

$821

Delta

Nov 1

ONT5:52 pmOntario

60h 38m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Nov 11

BKK9:40 amBangkok Suvarnabhumi

22h 37m

2 stops

ONT5:17 pmOntario

$827

United Airlines flights from Ontario to Thailand

Our best United Airlines deals on Ontario to Thailand flight tickets

United Airlines

Aug 17

ONT6:08 amOntario

27h 47m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Aug 31

BKK7:00 amBangkok Suvarnabhumi

25h 11m

2 stops

ONT6:11 pmOntario

$950

United Airlines

Jul 23

ONT6:39 pmOntario

24h 56m

2 stops

BKK9:35 amBangkok Suvarnabhumi

Sep 17

BKK9:35 amBangkok Suvarnabhumi

24h 26m

2 stops

ONT8:01 pmOntario

$953

United Airlines

Nov 4

ONT6:00 amOntario

27h 20m

2 stops

BKK12:20 amBangkok Suvarnabhumi

Nov 11

BKK7:10 amBangkok Suvarnabhumi

23h 13m

2 stops

ONT3:23 pmOntario

$957

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/10

6:20 am-11:35 pm

2 stops27h 15m

Bangkok Suvarnabhumi

Mon 8/24

2:35 am-10:45 pm

2 stops34h 10m

$769

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/10

6:20 am-11:35 pm

2 stops27h 15m

Bangkok Suvarnabhumi

Sun 8/23

2:35 am-10:45 pm

2 stops34h 10m

$770

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/24

6:20 am-9:45 pm

2 stops25h 25m

Bangkok Suvarnabhumi

Wed 9/2

11:30 pm-5:21 pm

2 stops31h 51m

$785

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/10

6:20 am-11:35 pm

2 stops27h 15m

Bangkok Suvarnabhumi

Sun 8/23

2:35 am-10:45 pm

2 stops34h 10m

$804

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 11/10

6:00 am-9:30 pm

2 stops24h 30m

Bangkok Suvarnabhumi

Mon 11/23

9:40 am-4:12 pm

2 stops21h 32m

$820

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 9/8

6:20 am-9:45 pm

2 stops25h 25m

Bangkok Suvarnabhumi

Wed 10/28

9:40 am-5:12 pm

2 stops21h 32m

$821

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Tue 10/27

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Mon 11/9

11:40 pm-4:12 pm

2 stops31h 32m

$974

OntarioBangkok

ONT - DMK

ONTDMK

Ontario

Mon 7/20

12:45 am-10:40 pm

2 stops31h 55m

Bangkok Don Mueang Intl

Tue 7/28

6:40 am-6:40 pm

2 stops26h 00m

$1,017

Quickest round-trip

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sun 8/23

12:45 am-10:20 am

1 stop19h 35m

Chiang Mai

Mon 9/14

11:20 am-6:40 pm

1 stop21h 20m

$1,040

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sun 8/23

12:45 am-10:20 am

1 stop19h 35m

Chiang Mai

Mon 9/14

11:20 am-6:40 pm

1 stop21h 20m

$1,041

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 $964 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 $764 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 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 $457	Free Cancellation	Rating 7.8 8,451 reviews	Search Delta flights
Korean Air	PriceFrom $616	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
China Airlines	PriceFrom $718	Free Cancellation	Rating 8.3 831 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $763	Free Cancellation	Rating 8.9 354 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.