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Phnom Penh

$15,410+ Cheap flights from Ontario (ONT) to Phnom Penh (PNH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PNH
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap 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 March 11, 2026.

This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/191:10 pm
ONT
-
PNH
3 stops54h 50m
Multiple Airlines
Sun 8/26:20 pm
PNH
-
ONT
3 stops39h 39m
Multiple Airlines
Deal found 3/9$15,410

Find 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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$15,410
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$960
Provider with most accurate pricing for Ontario-Phnom Penh Pochentong flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Phnom Penh Pochentong flights.
Search Deals
From Ontario to Phnom Penh Pochentong
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($141 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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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 March 11, 2026.
Use the filters below to find and compare flights from Ontario to Phnom Penh that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Sun 7/19

1:10 pm-10:00 am

3 stops54h 50m

Phnom Penh Pochentong

Sun 8/2

6:20 pm-7:59 pm

3 stops39h 39m

$15,410

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Sorted by cheapest first

Compare providers for flights from Ontario to Phnom Penh

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Phnom Penh in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Phnom Penh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Phnom Penh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Phnom Penh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Phnom Penh flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Phnom Penh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Phnom Penh (average of $566). Flying from Ontario to Phnom Penh in June is currently the most expensive (average of $862). 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.

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 March 11, 2026.
Read through reviews of airlines operating flights from Ontario to Phnom Penh, such as China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
811 reviews

Comfort

8.0

Food

7.8

Entertainment

8.0

Boarding

8.3

Crew

8.5

Overall

8.3

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
China Airlines
8.3
Very good
811 reviews
China Airlines
8.3
Very good
811 reviews

Comfort

8.0

Food

7.8

Entertainment

8.0

Boarding

8.3

Crew

8.5

Overall

8.3

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.

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 is the cheapest airline to fly from Ontario to Phnom Penh round-trip?

    Cheapflights users have booked flights from Ontario to Phnom Penh round-trip from $889. China Airlines is 13% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, September is the cheapest month in which you can book a flight from Ontario to Phnom Penh (average of $566). Flying from Ontario to Phnom Penh in June is currently the most expensive (average of $862). 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

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Top airline flying from Ontario to Phnom Penh

Discover the top airline 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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$889Average$1,193FlexibilityNo cancel feeOn-time70%

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