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Cheap flights from Ontario to Thailand from $314

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Thailand departing on 3/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Thailand

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 10:10 pm
ONT
-
HKT
26h 10m
2 stops
Delta Logo
11:25 pm - 5:15 pm
HKT
-
ONT
31h 50m
2 stops
$711Delta
Mon, Apr 13 - Mon, Apr 27
Delta Logo
6:00 am - 10:10 pm
ONT
-
HKT
26h 10m
2 stops
Delta Logo
11:25 pm - 11:44 pm
HKT
-
ONT
38h 19m
2 stops
$716Delta
Mon, Apr 13 - Thu, Apr 30
Korean Air Logo
6:00 am - 10:10 pm
ONT
-
HKT
26h 10m
2 stops
Korean Air Logo
11:25 pm - 5:15 pm
HKT
-
ONT
31h 50m
2 stops
$717Korean Air
Thu, Apr 9 - Sun, Apr 26
China Airlines Logo
12:10 am - 12:10 pm
ONT
-
BKK
22h 00m
1 stop
China Airlines Logo
1:20 pm - 6:00 pm
BKK
-
ONT
18h 40m
1 stop
$719China Airlines
Tue, Apr 7 - Thu, Apr 16
China Airlines Logo
12:10 am - 12:10 pm
ONT
-
BKK
22h 00m
1 stop
China Airlines Logo
10:50 am - 6:00 pm
BKK
-
ONT
21h 10m
1 stop
$720China Airlines
Tue, Apr 21 - Fri, May 1
Korean Air Logo
6:00 am - 10:10 pm
ONT
-
HKT
26h 10m
2 stops
Korean Air Logo
11:25 pm - 5:15 pm
HKT
-
ONT
31h 50m
2 stops
$722Korean Air
Fri, Apr 10 - Wed, Apr 29
United Airlines Logo
6:15 am - 12:20 am
ONT
-
BKK
28h 05m
2 stops
United Airlines Logo
7:00 am - 5:47 pm
BKK
-
ONT
24h 47m
2 stops
$723United Airlines
Mon, Mar 9 - Mon, Apr 27
United Airlines Logo
11:05 am - 9:35 am
ONT
-
BKK
32h 30m
2 stops
United Airlines Logo
9:35 am - 12:22 pm
BKK
-
ONT
40h 47m
2 stops
$735United Airlines
Tue, Apr 14 - Fri, May 15
Multiple Airlines Logo
10:50 pm - 9:50 pm
ONT
-
CNX
32h 00m
2 stops
Multiple Airlines Logo
7:05 am - 4:50 pm
CNX
-
ONT
24h 45m
2 stops
$869Multiple Airlines
Sat, Feb 28 - Thu, Mar 5
Multiple Airlines Logo
12:10 am - 5:55 pm
ONT
-
CNX
27h 45m
2 stops
Multiple Airlines Logo
10:05 pm - 6:00 pm
CNX
-
ONT
33h 55m
2 stops
$908Multiple Airlines
Tue, Apr 14 - Tue, Apr 21

United Airlines flights from Ontario to Thailand

Our best United Airlines deals on Ontario to Thailand flight tickets
United Airlines
Mar 9
ONT6:15 amOntario
28h 05m
2 stops
BKK12:20 amBangkok Suvarnabhumi
Apr 27
BKK7:00 amBangkok Suvarnabhumi
24h 47m
2 stops
ONT5:47 pmOntario
$723
United Airlines
Feb 9
ONT6:00 amOntario
38h 25m
2 stops
BKK11:25 amBangkok Suvarnabhumi
May 19
BKK9:35 amBangkok Suvarnabhumi
27h 24m
2 stops
ONT10:59 pmOntario
$733
United Airlines
Apr 14
ONT11:05 amOntario
32h 30m
2 stops
BKK9:35 amBangkok Suvarnabhumi
May 15
BKK9:35 amBangkok Suvarnabhumi
40h 47m
2 stops
ONT12:22 pmOntario
$735

Delta flights from Ontario to Thailand

Our best Delta deals on Ontario to Thailand flight tickets
Delta
Apr 13
ONT6:00 amOntario
26h 10m
2 stops
HKT10:10 pmPhuket City
Apr 27
HKT11:25 pmPhuket City
31h 50m
2 stops
ONT5:15 pmOntario
$711
Delta
Apr 13
ONT6:00 amOntario
26h 10m
2 stops
HKT10:10 pmPhuket City
Apr 30
HKT11:25 pmPhuket City
38h 19m
2 stops
ONT11:44 pmOntario
$716
Delta
Feb 19
ONT6:00 amOntario
27h 55m
2 stops
BKK12:55 amBangkok Suvarnabhumi
May 10
BKK9:40 pmBangkok Suvarnabhumi
51h 32m
2 stops
ONT11:12 amOntario
$733

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Thailand that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Ontario to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Mon 4/13

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Mon 4/27

11:25 pm-5:15 pm

2 stops31h 50m

$711

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Mon 4/13

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Thu 4/30

11:25 pm-11:44 pm

2 stops38h 19m

$716

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Thu 4/9

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Sun 4/26

11:25 pm-5:15 pm

2 stops31h 50m

$717

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 4/7

12:10 am-12:10 pm

1 stop22h 00m

Bangkok Suvarnabhumi

Thu 4/16

1:20 pm-6:00 pm

1 stop18h 40m

$719

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 4/21

12:10 am-12:10 pm

1 stop22h 00m

Bangkok Suvarnabhumi

Fri 5/1

10:50 am-6:00 pm

1 stop21h 10m

$720

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Fri 4/10

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Wed 4/29

11:25 pm-5:15 pm

2 stops31h 50m

$722

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Mon 3/9

6:15 am-12:20 am

2 stops28h 05m

Bangkok Suvarnabhumi

Mon 4/27

7:00 am-5:47 pm

2 stops24h 47m

$723

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Tue 4/14

11:05 am-9:35 am

2 stops32h 30m

Bangkok Suvarnabhumi

Fri 5/15

9:35 am-12:22 pm

2 stops40h 47m

$735

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Sat 2/28

10:50 pm-9:50 pm

2 stops32h 00m

Chiang Mai

Thu 3/5

7:05 am-4:50 pm

2 stops24h 45m

$869

OntarioChiang Mai

ONT - CNX

ONTCNX

Ontario

Tue 4/14

12:10 am-5:55 pm

2 stops27h 45m

Chiang Mai

Tue 4/21

10:05 pm-6:00 pm

2 stops33h 55m

$908

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Thailand from

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

What is the cheapest month to fly to Thailand?

The month of January is, on average, the cheapest month to fly to Thailand from Ontario, with most prices found around $769. If you are unable to visit Thailand during the month of January, then departing from Ontario during the month February is also very affordable. Most momondo users find prices during this month for around $788.

How far in advance should I book a flight 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 $968 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 $804 on momondo.

Can stopping save me money on Ontario to Thailand flights?

You could potentially save up to 21% 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 35m

Direct flights

None
The fastest flight from Ontario to Thailand takes 20h 35m
There are no direct flights from Ontario to Thailand. There are no popular flight routes from Ontario to Thailand.
Search flight deals

  • 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?

  • 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
DeltaPriceFrom $457Free CancellationRating
7.9
8,138 reviews
Search Delta flights
Korean AirPriceFrom $616Free CancellationRating
8.4
1,188 reviews
Search Korean Air flights
China AirlinesPriceFrom $718Free CancellationRating
8.3
803 reviews
Search China Airlines flights
STARLUX AirlinesPriceFrom $756Free CancellationRating
8.9
269 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.

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