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Phnom Penh

$10,131+ Cheap flights from Irvine, CA 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Irvine to Phnom Penh

Cheapest flights from Irvine to Phnom Penh
Explore the most affordable flight options available from Irvine to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 8/187:31 pm
LAX
-
PNH
3 stops30h 44m
Multiple Airlines
Fri 8/285:40 pm
PNH
-
LAX
2 stops31h 50m
Multiple Airlines
Deal found 1/28$10,131

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

September

Average price

$944
Provider with most accurate pricing for Los Angeles-Phnom Penh Pochentong flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Phnom Penh Pochentong flights.
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($273 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Best time to book a flight from Irvine to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Irvine 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 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 January 23, 2026.

The best time to book flights from Irvine to Phnom Penh is 75 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 $854). 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 January 29, 2026.
Read through reviews of airlines operating flights from Irvine to Phnom Penh, such as EVA Air, China Airlines, and Singapore Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
EVA Air
8.4
Very good
1,334 reviews
EVA Air
8.4
Very good
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
China Airlines
8.3
Very good
802 reviews
EVA Air
8.4
Very good
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Singapore Airlines
8.2
Very good
1,440 reviews
EVA Air
8.4
Very good
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Asiana Airlines
8.1
Very good
501 reviews
EVA Air
8.4
Very good
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Cathay Pacific
7.6
Good
1,148 reviews
EVA Air
8.4
Very good
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.

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 9 different airlines.

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

    The cheapest airlines for a one-way flight from Irvine to Phnom Penh are China Southern ($258), Singapore Airlines ($331), and Cathay Pacific ($362).

  • 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 $854). 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 9 airlines flying from Irvine to Phnom Penh

Discover the top 9 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$560Average$630FlexibilityNo cancel feeOn-time69%
China EasternCheapest$643Average$783FlexibilityNo cancel feeOn-time62%
Singapore AirlinesCheapest$659Average$847FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$661Average$750FlexibilityNo cancel feeOn-time60%
Cathay PacificCheapest$695Average$840FlexibilityNo cancel feeOn-time72%
Asiana AirlinesCheapest$702Average$774FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$750Average$903FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$818Average$1,233FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$861Average$1,102FlexibilityNo cancel feeOn-time74%

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