What airlines fly to Thailand?

Singapore Airlines, Asiana Airlines and Cathay Pacific 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.

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

Delta, United Airlines, 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 May 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.

$513 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.

7:00 am - 1:05 am

ONT

BKK

28h 05m

2 stops

9:40 pm - 10:40 pm

BKK

ONT

39h 00m

2 stops

$835Korean Air

Wed, Sep 2 - Wed, Sep 9

6:00 am - 9:30 pm

ONT

BKK

25h 30m

2 stops

9:40 am - 5:17 pm

BKK

ONT

22h 37m

2 stops

$852Delta

Thu, Oct 29 - Tue, Nov 3

7:00 am - 9:45 pm

ONT

BKK

24h 45m

2 stops

9:40 pm - 5:16 pm

BKK

ONT

33h 36m

2 stops

$853Delta

Fri, Sep 18 - Sat, Oct 3

6:01 pm - 9:45 pm

ONT

BKK

37h 44m

2 stops

9:50 am - 10:44 pm

BKK

ONT

26h 54m

2 stops

$858Delta

Wed, Jul 8 - Tue, Sep 8

5:05 pm - 11:35 pm

ONT

BKK

40h 30m

2 stops

9:50 am - 10:43 pm

BKK

ONT

26h 53m

2 stops

$859Delta

Thu, Oct 8 - Sat, Oct 24

1:00 pm - 11:35 pm

ONT

BKK

44h 35m

2 stops

9:40 am - 12:16 pm

BKK

ONT

40h 36m

2 stops

$864Delta

Thu, Oct 8 - Sat, Oct 31

6:00 am - 9:30 pm

ONT

BKK

25h 30m

2 stops

9:40 am - 5:17 pm

BKK

ONT

22h 37m

2 stops

$877Delta

Thu, Oct 29 - Thu, Nov 12

7:00 am - 10:55 pm

ONT

CNX

24h 55m

2 stops

12:15 am - 1:57 pm

CNX

ONT

28h 42m

2 stops

$958Korean Air

Tue, Nov 3 - Mon, Feb 15

10:50 pm - 10:25 am

ONT

CNX

20h 35m

1 stop

11:25 am - 4:50 pm

CNX

ONT

20h 25m

1 stop

$1,079China Airlines

Wed, Nov 4 - Wed, Nov 11

11:50 pm - 10:25 am

ONT

CNX

20h 35m

1 stop

11:25 am - 4:50 pm

CNX

ONT

20h 25m

1 stop

$1,080China Airlines

Sun, Oct 25 - Tue, Nov 3

Delta flights from Ontario to Thailand

Our best Delta deals on Ontario to Thailand flight tickets

Delta

Oct 29

ONT6:00 amOntario

25h 30m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Nov 3

BKK9:40 amBangkok Suvarnabhumi

22h 37m

2 stops

ONT5:17 pmOntario

$852

Delta

Sep 18

ONT7:00 amOntario

24h 45m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Oct 3

BKK9:40 pmBangkok Suvarnabhumi

33h 36m

2 stops

ONT5:16 pmOntario

$853

Delta

Jul 8

ONT6:01 pmOntario

37h 44m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Sep 8

BKK9:50 amBangkok Suvarnabhumi

26h 54m

2 stops

ONT10:44 pmOntario

$858

China Airlines flights from Ontario to Thailand

Our best China Airlines deals on Ontario to Thailand flight tickets

China Airlines

Aug 26

ONT12:45 amOntario

34h 40m

1 stop

BKK1:25 amBangkok Suvarnabhumi

Sep 9

BKK2:40 amBangkok Suvarnabhumi

30h 00m

1 stop

ONT6:40 pmOntario

$1,014

China Airlines

Aug 21

ONT12:45 amOntario

19h 00m

1 stop

BKK9:45 amBangkok Suvarnabhumi

Aug 24

BKK2:40 amBangkok Suvarnabhumi

30h 00m

1 stop

ONT6:40 pmOntario

$1,015

China Airlines

Sep 21

ONT12:10 amOntario

19h 35m

1 stop

BKK9:45 amBangkok Suvarnabhumi

Oct 6

BKK1:20 pmBangkok Suvarnabhumi

18h 40m

1 stop

ONT6:00 pmOntario

$1,024

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 9/2

7:00 am-1:05 am

2 stops28h 05m

Bangkok Suvarnabhumi

Wed 9/9

9:40 pm-10:40 pm

2 stops39h 00m

$835

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 10/29

6:00 am-9:30 pm

2 stops25h 30m

Bangkok Suvarnabhumi

Tue 11/3

9:40 am-5:17 pm

2 stops22h 37m

$852

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Fri 9/18

7:00 am-9:45 pm

2 stops24h 45m

Bangkok Suvarnabhumi

Sat 10/3

9:40 pm-5:16 pm

2 stops33h 36m

$853

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 7/8

6:01 pm-9:45 pm

2 stops37h 44m

Bangkok Suvarnabhumi

Tue 9/8

9:50 am-10:44 pm

2 stops26h 54m

$858

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 10/8

5:05 pm-11:35 pm

2 stops40h 30m

Bangkok Suvarnabhumi

Sat 10/24

9:50 am-10:43 pm

2 stops26h 53m

$859

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 10/8

1:00 pm-11:35 pm

2 stops44h 35m

Bangkok Suvarnabhumi

Sat 10/31

9:40 am-12:16 pm

2 stops40h 36m

$864

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 10/29

6:00 am-9:30 pm

2 stops25h 30m

Bangkok Suvarnabhumi

Thu 11/12

9:40 am-5:17 pm

2 stops22h 37m

$877

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Tue 11/3

7:00 am-10:55 pm

2 stops24h 55m

Chiang Mai

Mon 2/15

12:15 am-1:57 pm

2 stops28h 42m

$958

Quickest round-trip

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Wed 11/4

10:50 pm-10:25 am

1 stop20h 35m

Chiang Mai

Wed 11/11

11:25 am-4:50 pm

1 stop20h 25m

$1,079

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sun 10/25

11:50 pm-10:25 am

1 stop20h 35m

Chiang Mai

Tue 11/3

11:25 am-4:50 pm

1 stop20h 25m

$1,080

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 6% 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 55m
Direct flights	None

The fastest flight from Ontario to Thailand takes 20h 55m

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 May 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 8,452 reviews	Search Delta flights
Korean Air	PriceFrom $616	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
China Airlines	PriceFrom $717	Free Cancellation	Rating 8.3 824 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $763	Free Cancellation	Rating 8.9 313 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.