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

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 21 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 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.

$458 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.

6:00 am - 1:05 am

ONT

BKK

29h 05m

2 stops

9:50 am - 10:52 pm

BKK

ONT

27h 02m

2 stops

$881Delta

lun., jul. 13 - mar., jul. 28

6:20 am - 11:35 pm

ONT

BKK

27h 15m

2 stops

9:40 am - 4:12 pm

BKK

ONT

21h 32m

2 stops

$882Delta

lun., sep. 7 - lun., nov. 16

9:40 am - 9:45 pm

ONT

BKK

46h 05m

2 stops

2:35 am - 10:52 pm

BKK

ONT

34h 17m

2 stops

$887Delta

mar., jul. 14 - lun., jul. 27

6:00 am - 1:05 am

ONT

BKK

29h 05m

2 stops

11:30 pm - 11:17 am

BKK

ONT

49h 47m

2 stops

$888Delta

lun., jul. 13 - lun., jul. 27

7:00 am - 9:30 pm

ONT

BKK

23h 30m

2 stops

11:30 pm - 5:17 pm

BKK

ONT

31h 47m

2 stops

$895Korean Air

mar., nov. 17 - dom., mar. 28

7:00 am - 10:55 pm

ONT

CNX

24h 55m

2 stops

12:15 am - 5:17 pm

CNX

ONT

32h 02m

2 stops

$926Korean Air

dom., nov. 1 - mié., nov. 4

12:10 am - 10:20 am

ONT

CNX

20h 10m

1 stop

11:25 am - 4:50 pm

CNX

ONT

20h 25m

1 stop

$1,046China Airlines

vie., oct. 9 - mar., nov. 3

12:45 am - 10:20 am

ONT

CNX

19h 35m

1 stop

11:20 am - 6:40 pm

CNX

ONT

21h 20m

1 stop

$1,092China Airlines

sáb., ago. 29 - mar., sep. 8

12:10 am - 4:10 pm

ONT

KBV

26h 00m

2 stops

8:35 pm - 6:00 pm

KBV

ONT

35h 25m

2 stops

$1,207Multiple Airlines

sáb., oct. 3 - jue., oct. 15

12:45 am - 11:05 pm

ONT

DMK

32h 20m

2 stops

7:30 am - 6:00 pm

DMK

ONT

24h 30m

2 stops

$1,226Multiple Airlines

jue., sep. 3 - vie., sep. 18

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Delta flights from Ontario to Thailand

Our best Delta deals on Ontario to Thailand flight tickets

Delta

Jul 13

ONT6:00 amOntario

29h 05m

2 stops

BKK1:05 amBangkok Suvarnabhumi

Jul 28

BKK9:50 amBangkok Suvarnabhumi

27h 02m

2 stops

ONT10:52 pmOntario

$881

Delta

Sep 7

ONT6:20 amOntario

27h 15m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Nov 16

BKK9:40 amBangkok Suvarnabhumi

21h 32m

2 stops

ONT4:12 pmOntario

$882

Delta

Jul 14

ONT9:40 amOntario

46h 05m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Jul 27

BKK2:35 amBangkok Suvarnabhumi

34h 17m

2 stops

ONT10:52 pmOntario

$887

Korean Air flights from Ontario to Thailand

Our best Korean Air deals on Ontario to Thailand flight tickets

Korean Air

Nov 17

ONT7:00 amOntario

23h 30m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Jan 19

BKK9:30 pmBangkok Suvarnabhumi

31h 27m

2 stops

ONT1:57 pmOntario

$895

Korean Air

Aug 2

ONT6:20 amOntario

27h 15m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Aug 26

BKK2:35 amBangkok Suvarnabhumi

34h 10m

2 stops

ONT10:45 pmOntario

$913

Korean Air

Sep 8

ONT7:00 amOntario

28h 05m

2 stops

BKK1:05 amBangkok Suvarnabhumi

Sep 10

BKK9:40 pmBangkok Suvarnabhumi

33h 36m

2 stops

ONT5:16 pmOntario

$926

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

lun. 7/13

6:00 am-1:05 am

2 stops29h 05m

Bangkok Suvarnabhumi

mar. 7/28

9:50 am-10:52 pm

2 stops27h 02m

$881

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

lun. 9/7

6:20 am-11:35 pm

2 stops27h 15m

Bangkok Suvarnabhumi

lun. 11/16

9:40 am-4:12 pm

2 stops21h 32m

$882

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

mar. 7/14

9:40 am-9:45 pm

2 stops46h 05m

Bangkok Suvarnabhumi

lun. 7/27

2:35 am-10:52 pm

2 stops34h 17m

$887

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

lun. 7/13

6:00 am-1:05 am

2 stops29h 05m

Bangkok Suvarnabhumi

lun. 7/27

11:30 pm-11:17 am

2 stops49h 47m

$888

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

mar. 11/17

7:00 am-9:30 pm

2 stops23h 30m

Bangkok Suvarnabhumi

dom. 3/28

11:30 pm-5:17 pm

2 stops31h 47m

$895

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

dom. 11/1

7:00 am-10:55 pm

2 stops24h 55m

Chiang Mai

mié. 11/4

12:15 am-5:17 pm

2 stops32h 02m

$926

Quickest round-trip

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

vie. 10/9

12:10 am-10:20 am

1 stop20h 10m

Chiang Mai

mar. 11/3

11:25 am-4:50 pm

1 stop20h 25m

$1,046

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

sáb. 8/29

12:45 am-10:20 am

1 stop19h 35m

Chiang Mai

mar. 9/8

11:20 am-6:40 pm

1 stop21h 20m

$1,092

OntarioKrabi

ONT - KBV

ONTKBV

Ontario

sáb. 10/3

12:10 am-4:10 pm

2 stops26h 00m

Krabi

jue. 10/15

8:35 pm-6:00 pm

2 stops35h 25m

$1,207

OntarioBangkok

ONT - DMK

ONTDMK

Ontario

jue. 9/3

12:45 am-11:05 pm

2 stops32h 20m

Bangkok Don Mueang Intl

vie. 9/18

7:30 am-6:00 pm

2 stops24h 30m

$1,226

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 $955 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 $757 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 7.9 8,393 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 8.3 828 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $763	Free Cancellation	Rating 8.9 331 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.