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Phnom Penh

$375+ Cheap flights from Irvine, CA 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Phnom Penh Pochentong are usually found in March or February, booked 75 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 July 31, 2025.

Round-trip from

$743
(FlightHub)

One-way from

$374
(CrystalTravel)

Popular in

June

Cheapest in

March

Average price

$1,219
From Irvine to Phnom Penh Pochentong
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One-way flight from Irvine to Phnom Penh Pochentong
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Highest demand for flights based on searches. 16% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:25 pmLAX - PNH
1 stop33h 45mAir China
Wed 3/2512:25 amPNH - LAX
1 stop33h 35mAir China
Deal found 7/31$737
This oojo deal was found by Cheapflights users on 7/31. 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 11/49:00 pmLAX - PNH
1 stop22h 40mMultiple Airlines
Sun 12/2112:25 amPNH - LAX
1 stop33h 35mMultiple Airlines
Deal found 7/31$738
This CrystalTravel deal was found by Cheapflights users on 7/31. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/812:30 pmLAX - PNH
1 stop20h 45mChina Eastern
Fri 10/312:10 amPNH - LAX
1 stop23h 55mChina Eastern
Deal found 7/31$740
This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:40 pmLAX - PNH
1 stop28h 00mSingapore Airlines
Wed 11/52:40 pmPNH - LAX
1 stop20h 15mSingapore Airlines
Deal found 7/31$741
This Ovago deal was found by Cheapflights users on 7/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/211:25 pmLAX - PNH
1 stop37h 55mCathay Pacific
Mon 9/811:25 amPNH - LAX
1 stop19h 40mCathay Pacific
Deal found 7/30$751
This KAYAK deal was found by Cheapflights users on 7/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:55 amLAX - PNH
1 stop22h 20mPhilippine Airlines
Sat 11/291:15 amPNH - LAX
1 stop21h 45mPhilippine Airlines
Deal found 7/30$758
This oojo deal was found by Cheapflights users on 7/29. 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 10/2012:40 pmLAX - PNH
1 stop19h 30mKorean Air
Wed 11/511:45 pmPNH - LAX
1 stop28h 55mKorean Air
Deal found 7/29$762

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine 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 July 31, 2025.
Use the filters below to find and compare flights from Irvine to Phnom Penh that are best for you.

Fly from

Irvine

Fly to

Phnom Penh

Route

Depart

Return

Price

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 11/6

10:25 pm-11:10 pm

1 stop33h 45m

Phnom Penh Pochentong

Sun 12/21

12:25 am-7:00 pm

1 stop33h 35m

$737

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Tue 11/4

9:00 pm-10:40 am

1 stop22h 40m

Phnom Penh Pochentong

Sun 12/21

12:25 am-7:00 pm

1 stop33h 35m

$738

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 9/8

12:30 pm-11:15 pm

1 stop20h 45m

Phnom Penh Pochentong

Fri 10/3

12:10 am-10:05 am

1 stop23h 55m

$740

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 10/1

11:40 pm-5:40 pm

1 stop28h 00m

Phnom Penh Pochentong

Wed 11/5

2:40 pm-7:55 pm

1 stop20h 15m

$741

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 8/21

1:25 pm-5:20 pm

1 stop37h 55m

Phnom Penh Pochentong

Mon 9/8

11:25 am-5:05 pm

1 stop19h 40m

$751

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Fri 11/14

10:55 am-12:15 am

1 stop22h 20m

Phnom Penh Pochentong

Sat 11/29

1:15 am-8:00 am

1 stop21h 45m

$758

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 10/20

12:40 pm-10:10 pm

1 stop19h 30m

Phnom Penh Pochentong

Wed 11/5

11:45 pm-8:30 am

1 stop23h 45m

$762

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Tue 8/12

12:25 am-5:20 pm

1 stop26h 55m

$375

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 9/3

12:30 pm-11:15 pm

1 stop20h 45m

$380

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 8/18

12:30 pm-10:10 pm

1 stop19h 40m

$383

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 14 results
1
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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 July 25, 2025.

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, March is the cheapest month in which you can book a flight from Irvine to Phnom Penh (average of $988). Flying from Irvine to Phnom Penh in June is currently the most expensive (average of $1,549). 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to Phnom Penh as you normally would.

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. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Irvine to Phnom Penh?

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 July 31, 2025.
Read through reviews of airlines operating flights from Irvine to Phnom Penh, such as EVA Air, Korean Air, and China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Entertainment

8.0

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
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Entertainment

8.0

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
1,121 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Entertainment

8.0

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
754 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Entertainment

8.0

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
468 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Entertainment

8.0

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
Singapore Airlines
8.1
Very good
1,338 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Comfort

8.3

Crew

8.6

Boarding

8.4

Food

8.1

Entertainment

8.0

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 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.

  • 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 Cathay Pacific ($374), XiamenAir ($375), and Korean Air ($383).

  • 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, March is the cheapest month in which you can book a flight from Irvine to Phnom Penh (average of $988). Flying from Irvine to Phnom Penh in June is currently the most expensive (average of $1,549). 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$628Average$943FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$644Average$712FlexibilityNo cancel feeOn-time67%
China EasternCheapest$660Average$797FlexibilityNo cancel feeOn-time62%
Philippine AirlinesCheapest$661Average$784FlexibilityNo cancel feeOn-time60%
Singapore AirlinesCheapest$674Average$946FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$707Average$863FlexibilityNo cancel feeOn-time72%
Asiana AirlinesCheapest$708Average$882FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$750Average$990FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$826Average$1,042FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$907Average$1,060FlexibilityNo cancel feeOn-time74%

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