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Phnom Penh

Cheap flights from Irvine, CA to Phnom Penh (PNH)

LAX — PNH
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Phnom Penh Pochentong are usually found in September or October, booked 63 days in advance, depart on a Monday or Friday and return on a Wednesday

Cheap flight deals from Irvine to Phnom Penh

Keep the following information in mind while searching for Irvine to Phnom Penh flight deals. Data was last updated November 2, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Popular in

June

Cheapest in

September

Average price

$913
Provider with most accurate pricing for Los Angeles-Phnom Penh Pochentong flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Phnom Penh Pochentong flights.
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Highest demand for flights based on searches. 18% potential increase in price ($221 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Phnom Penh. Price data was last updated on October 31, 2025.

The best time to book flights from Irvine to Phnom Penh is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Irvine to Phnom Penh (average of $566). Flying from Irvine to Phnom Penh in June is currently the most expensive (average of $863). 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 IR9 to PNH?

Find hourly flight availability from Irvine 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 November 2, 2025.

It’s typically best to fly out from Irvine to Phnom Penh at noon. Doing so could potentially save you 18% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Irvine to Phnom Penh?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Phnom Penh. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Irvine to Phnom Penh flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 2, 2025.
Read through reviews of airlines operating flights from Irvine to Phnom Penh, such as EVA Air, China Airlines, and Asiana Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,268 reviews

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
EVA Air
8.4
Very good
1,268 reviews
EVA Air
8.4
Very good
1,268 reviews

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
China Airlines
8.3
Very good
776 reviews
EVA Air
8.4
Very good
1,268 reviews

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Asiana Airlines
8.2
Very good
484 reviews
EVA Air
8.4
Very good
1,268 reviews

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Singapore Airlines
8.1
Very good
1,391 reviews
EVA Air
8.4
Very good
1,268 reviews

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Cathay Pacific
7.6
Good
1,045 reviews
EVA Air
8.4
Very good
1,268 reviews

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.

Related info for your journey

Find useful and relevant information for your journey from Irvine 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 airport do you fly into for flights to Phnom Penh from Irvine?

    Located just 5.0 mi from the city center, Phnom Penh Pochentong is the airport most travelers will use when flying to Phnom Penh from Irvine. Booking flights from Irvine to Pochentong (PNH) should be relatively easy as there are 0 daily inbound flights from Irvine from 10 different airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Irvine 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 Irvine to Phnom Penh?

    Currently, September is the cheapest month in which you can book a flight from Irvine to Phnom Penh (average of $566). Flying from Irvine to Phnom Penh in June is currently the most expensive (average of $863). 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 10 airlines flying from Irvine to Phnom Penh

Discover the top 10 airlines that operate flights from Irvine 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$560Average$912FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$644Average$702FlexibilityNo cancel feeOn-time67%
China EasternCheapest$651Average$765FlexibilityNo cancel feeOn-time62%
Philippine AirlinesCheapest$661Average$778FlexibilityNo cancel feeOn-time60%
Singapore AirlinesCheapest$671Average$904FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$675Average$845FlexibilityNo cancel feeOn-time72%
Asiana AirlinesCheapest$709Average$846FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$750Average$985FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$821Average$1,194FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$890Average$1,122FlexibilityNo cancel feeOn-time74%

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