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Phnom Penh

$798+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Phnom Penh Pochentong are usually found in September or March, 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 September 16, 2025.

Round-trip from

$1,675
(Etihad Airways)

One-way from

$798
(Mytrip)

Popular in

June

Cheapest in

September

Average price

$783
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. 18% potential increase in price ($232 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Etihad Airways deal was found by Cheapflights users on 9/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/411:59 pmLAX - PNH
2 stops40h 56mMultiple Airlines
Mon 11/37:55 amPNH - LAX
2 stops45h 21mMultiple Airlines
Deal found 9/14$1,675
This oojo deal was found by Cheapflights users on 9/14. 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.
Fri 10/311:59 pmLAX - PNH
2 stops40h 56mEtihad Airways
Thu 10/307:55 amPNH - LAX
2 stops53h 37mEtihad Airways
Deal found 9/14$1,695
This Etihad Airways deal was found by Cheapflights users on 9/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:04 amLAX - PNH
2 stops33h 26mMultiple Airlines
Mon 12/17:55 amPNH - LAX
2 stops45h 15mMultiple Airlines
Deal found 9/15$1,714
This Etihad Airways deal was found by Cheapflights users on 9/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:45 pmLAX - PNH
2 stops43h 10mMultiple Airlines
Tue 10/218:30 amPNH - LAX
2 stops48h 33mMultiple Airlines
Deal found 9/14$1,717
This Etihad Airways deal was found by Cheapflights users on 9/13. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:48 amLAX - PNH
2 stops29h 42mMultiple Airlines
Tue 1/277:50 pmPNH - LAX
2 stops36h 02mMultiple Airlines
Deal found 9/13$1,719
This oojo deal was found by Cheapflights users on 9/14. 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 10/611:59 pmLAX - PNH
2 stops40h 56mEtihad Airways
Mon 11/107:55 amPNH - LAX
2 stops45h 22mEtihad Airways
Deal found 9/14$1,744
This Mytrip deal was found by Cheapflights users on 9/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:45 amLAX - PNH
3 stops30h 45mMultiple Airlines
Tue 12/237:50 pmPNH - LAX
3 stops41h 13mMultiple Airlines
Deal found 9/13$1,841
This Etihad Airways deal was found by Cheapflights users on 9/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:00 amLAX - PNH
2 stops34h 55mMultiple Airlines
Mon 12/227:55 amPNH - LAX
2 stops44h 58mMultiple Airlines
Deal found 9/14$1,880
This oojo deal was found by Cheapflights users on 9/14. 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.
Thu 10/3012:07 pmLAX - PNH
2 stops40h 18mEtihad Airways
Mon 11/107:55 amPNH - LAX
2 stops54h 37mEtihad Airways
Deal found 9/14$1,882
This oojo deal was found by Cheapflights users on 9/14. 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.
Thu 10/96:00 amLAX - PNH
2 stops34h 55mEtihad Airways
Thu 11/67:50 pmPNH - LAX
2 stops33h 27mEtihad Airways
Deal found 9/14$1,902
This Justfly.com deal was found by Cheapflights users on 9/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:04 amLAX - PNH
2 stops34h 26mEtihad Airways
Mon 12/87:55 amPNH - LAX
2 stops52h 19mEtihad Airways
Deal found 9/15$1,903

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 September 16, 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

Tue 11/4

12:45 am-6:30 am

2 stops38h 45m

Phnom Penh Pochentong

Mon 12/1

7:55 am-2:10 pm

2 stops45h 15m

$1,675

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Sun 11/2

5:04 am-5:25 pm

2 stops45h 21m

Phnom Penh Pochentong

Tue 12/2

7:55 am-12:08 am

2 stops55h 13m

$1,717

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 10/8

9:45 pm-6:55 am

2 stops43h 10m

Phnom Penh Pochentong

Tue 10/21

8:30 am-7:03 pm

2 stops48h 33m

$1,717

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 10/9

6:00 am-6:55 am

2 stops34h 55m

Phnom Penh Pochentong

Mon 12/22

7:55 am-1:53 pm

2 stops44h 58m

$1,880

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 10/9

6:00 am-6:55 am

2 stops34h 55m

Phnom Penh Pochentong

Thu 11/6

7:50 pm-2:17 pm

2 stops33h 27m

$1,902

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Tue 10/28

6:04 am-6:30 am

2 stops34h 26m

Phnom Penh Pochentong

Mon 12/8

7:55 am-9:14 pm

2 stops52h 19m

$1,903

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 11/19

6:05 am-6:30 am

2 stops33h 25m

Phnom Penh Pochentong

Sat 12/20

7:50 pm-1:53 pm

2 stops33h 03m

$1,930

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 10/30

5:45 pm-6:25 pm

3 stops34h 40m

Phnom Penh Pochentong

Thu 11/6

7:50 pm-12:50 pm

2 stops32h 00m

$1,933

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 11/19

11:35 am-6:30 am

2 stops27h 55m

Phnom Penh Pochentong

Tue 12/23

7:50 pm-10:03 pm

3 stops41h 13m

$1,990

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 11/19

6:05 am-6:30 am

2 stops33h 25m

Phnom Penh Pochentong

Tue 12/23

7:50 pm-12:57 am

2 stops44h 07m

$1,995

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 19 results
1
2

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 September 12, 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, March is the cheapest month in which you can book a flight from Irvine to Phnom Penh (average of $982). Flying from Irvine to Phnom Penh in June is currently the most expensive (average of $1,552). 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 September 16, 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.

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 September 16, 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
1,236 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very good
1,236 reviews
EVA Air
8.4
Very good
1,236 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
China Airlines
8.3
Very good
767 reviews
EVA Air
8.4
Very good
1,236 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Asiana Airlines
8.2
Very good
480 reviews
EVA Air
8.4
Very good
1,236 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Singapore Airlines
8.1
Very good
1,365 reviews
EVA Air
8.4
Very good
1,236 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Cathay Pacific
7.6
Good
993 reviews
EVA Air
8.4
Very good
1,236 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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.

  • How long is the flight from Irvine to Phnom Penh?

    Airlines like Etihad Airways fly from Irvine to Phnom Penh in about 45h 21m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 8196 mi.

  • 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 $982). Flying from Irvine to Phnom Penh in June is currently the most expensive (average of $1,552). 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 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$560Average$914FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$644Average$702FlexibilityNo cancel feeOn-time67%
China EasternCheapest$658Average$793FlexibilityNo cancel feeOn-time62%
Philippine AirlinesCheapest$661Average$762FlexibilityNo cancel feeOn-time60%
Singapore AirlinesCheapest$673Average$935FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$682Average$861FlexibilityNo cancel feeOn-time72%
Asiana AirlinesCheapest$710Average$852FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$750Average$987FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$821Average$1,071FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$892Average$1,088FlexibilityNo cancel feeOn-time74%

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