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Phnom Penh

$428+ Cheap flights from Ontario (ONT) to Phnom Penh (PNH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PNH
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Phnom Penh Pochentong are usually found in February or May, booked 59 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Ontario to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$810
(ScholarTrip)

One-way from

$428
(ScholarTrip)

Popular in

June

Cheapest in

February

Average price

$1,450
From Ontario to Phnom Penh Pochentong
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One-way flight from Ontario to Phnom Penh Pochentong
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Highest demand for flights based on searches. 10% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Ontario to Phnom Penh

Cheapest flights from Ontario to Phnom Penh
Explore the most affordable flight options available from Ontario to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This ScholarTrip deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:00 amONT - PNH
2 stops26h 10mKorean Air
Wed 9/2411:30 pmPNH - ONT
2 stops31h 47mKorean Air
Deal found 6/12$810
This oojo deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:45 pmONT - PNH
1 stop20h 50mChina Airlines
Wed 11/1911:35 amPNH - ONT
1 stop20h 15mChina Airlines
Deal found 6/12$868
This Korean Air deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:45 amONT - PNH
2 stops25h 25mMultiple Airlines
Wed 10/1511:30 pmPNH - ONT
2 stops31h 47mMultiple Airlines
Deal found 6/9$959
This oojo deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:11 pmONT - PNH
2 stops37h 44mAsiana Airlines
Fri 11/1411:55 pmPNH - ONT
2 stops35h 53mAsiana Airlines
Deal found 6/10$1,107
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/23:04 pmONT - PNH
2 stops30h 11mEVA Air
Tue 9/3012:35 pmPNH - ONT
2 stops39h 34mEVA Air
Deal found 6/11$1,235
This oojo deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:04 pmONT - PNH
2 stops43h 11mPhilippine Airlines
Tue 10/71:15 amPNH - ONT
2 stops36h 44mPhilippine Airlines
Deal found 6/10$1,241
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:38 pmONT - PNH
2 stops37h 17mUnited Airlines
Sat 12/1311:55 pmPNH - ONT
2 stops25h 04mUnited Airlines
Deal found 6/12$1,326
This oojo deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:39 amONT - PNH
3 stops38h 36mQatar Airways
Wed 9/245:40 pmPNH - ONT
3 stops44h 19mQatar Airways
Deal found 6/12$1,435

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Phnom Penh 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Ontario to Phnom Penh that are best for you.

Fly from

Ontario

Fly to

Phnom Penh

Route

Depart

Return

Price

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Wed 9/3

6:00 am-10:10 pm

2 stops26h 10m

Phnom Penh Pochentong

Wed 9/24

11:30 pm-5:17 pm

2 stops31h 47m

$810

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Wed 11/5

10:45 pm-10:35 am

1 stop20h 50m

Phnom Penh Pochentong

Wed 11/19

11:35 am-4:50 pm

1 stop20h 15m

$868

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Wed 10/1

6:45 am-10:10 pm

2 stops25h 25m

Phnom Penh Pochentong

Wed 10/15

11:30 pm-5:17 pm

2 stops31h 47m

$959

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Mon 11/10

6:11 pm-10:55 pm

2 stops37h 44m

Phnom Penh Pochentong

Fri 11/14

11:55 pm-8:48 pm

2 stops35h 53m

$1,107

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Tue 9/2

3:04 pm-11:15 am

2 stops30h 11m

Phnom Penh Pochentong

Tue 9/30

12:35 pm-2:09 pm

2 stops39h 34m

$1,235

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Wed 10/1

3:04 pm-12:15 am

2 stops43h 11m

Phnom Penh Pochentong

Tue 10/7

1:15 am-11:59 pm

2 stops36h 44m

$1,241

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Thu 11/27

6:38 pm-10:55 pm

2 stops37h 17m

Phnom Penh Pochentong

Sat 12/13

11:55 pm-9:59 am

2 stops25h 04m

$1,326

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Wed 9/3

11:39 am-4:15 pm

3 stops38h 36m

Phnom Penh Pochentong

Wed 9/24

5:40 pm-11:59 pm

3 stops44h 19m

$1,435

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Tue 8/19

6:00 am-10:10 pm

2 stops26h 10m

$428

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Mon 8/18

12:45 am-9:50 am

1 stop19h 05m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 14 results
1
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Best time to book a flight from Ontario to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Phnom Penh

How far ahead should I book a flight from Ontario to Phnom Penh?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Phnom Penh. Price data was last updated on June 9, 2025.

The price you pay for your flight from Ontario to Phnom Penh may vary depending on when you book. For the best chance of a lower fare, look to book 59 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Ontario to Phnom Penh?

Currently, March is the cheapest month in which you can book a flight from Ontario to Phnom Penh (average of $991). Flying from Ontario to Phnom Penh in June is currently the most expensive (average of $1,570). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to PNH?

Find hourly flight availability from Ontario to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Phnom Penh in the morning. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 9.8 inches per month. October is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 in.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated June 12, 2025.
To help decide which airline to fly from Ontario to Phnom Penh, see what other customers have to say about EVA Air, Korean Air and China Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,202 reviews

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,088 reviews
EVA Air
8.4
Very good
1,202 reviews

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
738 reviews
EVA Air
8.4
Very good
1,202 reviews

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Asiana Airlines
8.2
Very good
440 reviews
EVA Air
8.4
Very good
1,202 reviews

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Qatar Airways
7.4
Good
3,584 reviews
EVA Air
8.4
Very good
1,202 reviews

Overall

8.4

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from Ontario to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Ontario to Phnom Penh round-trip?

    Cheapflights users have booked flights from Ontario to Phnom Penh round-trip from $810. Other airlines that can offer you cheap pricing are China Airlines, from $868, and Asiana Airlines, from $1,107. Korean Air is 25% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Ontario to Phnom Penh one-way?

    For one-way options, check prices for Korean Air. According to our data, you can fly for as low as $428. Users have also found prices from $492 and $834 on China Airlines and Qatar Airways, respectively.

  • Can I find deals for flights from Ontario to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Ontario to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Phnom Penh.

  • Can I find deals for business class flights from Ontario to Phnom Penh?

    Yes. Cheapflights offers flight deals from Ontario to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Phnom Penh?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Phnom Penh (average of $991). Flying from Ontario to Phnom Penh in June is currently the most expensive (average of $1,570). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Ontario to Phnom Penh

Discover the top 2 airlines that operate flights from Ontario to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$922Average$1,150FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$925Average$1,102FlexibilityNo cancel feeOn-time81%

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