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 31% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 21 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 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.

$547 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 - 11:35 pm

ONT

BKK

26h 35m

2 stops

2:35 am - 10:40 pm

BKK

ONT

34h 05m

2 stops

$925Korean Air

Sun, Sep 13 - Mon, Sep 21

7:00 am - 11:35 pm

ONT

BKK

26h 35m

2 stops

11:30 pm - 10:40 pm

BKK

ONT

37h 10m

2 stops

$942Korean Air

Tue, Sep 1 - Tue, Sep 8

2:14 pm - 8:00 pm

ONT

BKK

39h 46m

2 stops

3:50 pm - 2:47 pm

BKK

ONT

37h 57m

2 stops

$945Singapore Airlines

Wed, Oct 28 - Mon, Dec 7

7:00 am - 9:45 pm

ONT

BKK

24h 45m

2 stops

9:50 am - 5:17 pm

BKK

ONT

21h 27m

2 stops

$952Delta

Sun, Oct 11 - Sat, Oct 17

9:55 am - 11:35 pm

ONT

BKK

47h 40m

2 stops

11:15 pm - 4:12 pm

BKK

ONT

31h 57m

2 stops

$958Delta

Thu, Oct 8 - Mon, Nov 9

6:00 am - 8:00 pm

ONT

BKK

47h 00m

2 stops

9:10 pm - 2:47 pm

BKK

ONT

32h 37m

2 stops

$991Singapore Airlines

Mon, Nov 16 - Sat, Dec 5

6:00 am - 9:45 pm

ONT

BKK

25h 45m

2 stops

2:35 am - 5:17 pm

BKK

ONT

28h 42m

2 stops

$1,006Multiple Airlines

Mon, Aug 10 - Wed, Oct 7

12:10 am - 10:20 am

ONT

CNX

20h 10m

1 stop

11:25 am - 5:50 pm

CNX

ONT

20h 25m

1 stop

$1,078China Airlines

Sun, Oct 18 - Tue, Oct 27

11:50 pm - 10:25 am

ONT

CNX

20h 35m

1 stop

11:25 am - 4:50 pm

CNX

ONT

20h 25m

1 stop

$1,079China Airlines

Mon, Oct 26 - Sat, Nov 7

12:45 am - 1:05 pm

ONT

DMK

22h 20m

2 stops

6:30 am - 6:40 pm

DMK

ONT

26h 10m

2 stops

$1,263Multiple Airlines

Sun, Aug 2 - Fri, Aug 21

China Airlines flights from Ontario to Thailand

Our best China Airlines deals on Ontario to Thailand flight tickets

China Airlines

Oct 15

ONT12:10 amOntario

22h 00m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

Oct 30

BKK2:35 amBangkok Suvarnabhumi

29h 15m

1 stop

ONT5:50 pmOntario

$1,022

China Airlines

Oct 5

ONT12:10 amOntario

26h 10m

1 stop

BKK4:20 pmBangkok Suvarnabhumi

Oct 19

BKK2:40 amBangkok Suvarnabhumi

29h 20m

1 stop

ONT6:00 pmOntario

$1,023

China Airlines

Oct 15

ONT12:10 amOntario

22h 00m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

Oct 23

BKK2:40 amBangkok Suvarnabhumi

29h 20m

1 stop

ONT6:00 pmOntario

$1,024

United Airlines flights from Ontario to Thailand

Our best United Airlines deals on Ontario to Thailand flight tickets

United Airlines

Sep 1

ONT9:01 amOntario

24h 54m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Sep 12

BKK7:00 amBangkok Suvarnabhumi

25h 11m

2 stops

ONT6:11 pmOntario

$1,063

United Airlines

May 25

ONT6:39 pmOntario

24h 56m

2 stops

BKK9:35 amBangkok Suvarnabhumi

Jun 15

BKK7:00 amBangkok Suvarnabhumi

24h 56m

2 stops

ONT5:56 pmOntario

$1,375

United Airlines

May 25

ONT6:00 amOntario

37h 35m

2 stops

BKK9:35 amBangkok Suvarnabhumi

Aug 12

BKK9:35 amBangkok Suvarnabhumi

46h 36m

2 stops

ONT6:11 pmOntario

$1,377

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 9/13

7:00 am-11:35 pm

2 stops26h 35m

Bangkok Suvarnabhumi

Mon 9/21

2:35 am-10:40 pm

2 stops34h 05m

$925

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 9/1

7:00 am-11:35 pm

2 stops26h 35m

Bangkok Suvarnabhumi

Tue 9/8

11:30 pm-10:40 pm

2 stops37h 10m

$942

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Wed 10/28

2:14 pm-8:00 pm

2 stops39h 46m

Bangkok Suvarnabhumi

Mon 12/7

3:50 pm-2:47 pm

2 stops37h 57m

$945

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 10/11

7:00 am-9:45 pm

2 stops24h 45m

Bangkok Suvarnabhumi

Sat 10/17

9:50 am-5:17 pm

2 stops21h 27m

$952

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Thu 10/8

9:55 am-11:35 pm

2 stops47h 40m

Bangkok Suvarnabhumi

Mon 11/9

11:15 pm-4:12 pm

2 stops31h 57m

$958

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 11/16

6:00 am-8:00 pm

2 stops47h 00m

Bangkok Suvarnabhumi

Sat 12/5

9:10 pm-2:47 pm

2 stops32h 37m

$991

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 8/10

6:00 am-9:45 pm

2 stops25h 45m

Bangkok Suvarnabhumi

Wed 10/7

2:35 am-5:17 pm

2 stops28h 42m

$1,006

Quickest round-trip

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sun 10/18

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

Tue 10/27

11:25 am-5:50 pm

1 stop20h 25m

$1,078

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Mon 10/26

11:50 pm-10:25 am

1 stop20h 35m

Chiang Mai

Sat 11/7

11:25 am-4:50 pm

1 stop20h 25m

$1,079

OntarioBangkok

ONT - DMK

ONTDMK

Ontario

Sun 8/2

12:45 am-1:05 pm

2 stops22h 20m

Bangkok Don Mueang Intl

Fri 8/21

6:30 am-6:40 pm

2 stops26h 10m

$1,263

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 $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 $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	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 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 1,218 reviews	Search Korean Air flights
China Airlines	PriceFrom $716	Free Cancellation	Rating 8.3 826 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $763	Free Cancellation	Rating 8.9 316 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.