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Phnom Penh

$370+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Phnom Penh Pochentong are usually found in February or March, booked 83 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 April 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$742
(FlightHub)

One-way from

$370
(Justfly.com)

Popular in

June

Cheapest in

February

Average price

$923
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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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. 21% potential increase in price ($305 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 3, 2025.

This FlightHub deal was found by Cheapflights users on 4/1. 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.
Tue 8/2612:40 pmLAX - PNH
1 stop20h 15mAsiana Airlines
Wed 9/1711:55 pmPNH - LAX
1 stop30h 05mAsiana Airlines
Deal found 4/1$742
This KAYAK deal was found by Cheapflights users on 4/1. 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 8/2212:50 pmLAX - PNH
1 stop21h 25mPhilippine Airlines
Sat 9/131:15 amPNH - LAX
1 stop22h 30mPhilippine Airlines
Deal found 4/1$749
This Gurufare deal was found by Cheapflights users on 4/2. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/312:45 pmLAX - PNH
2 stops38h 50mSingapore Airlines
Fri 11/219:35 amPNH - LAX
1 stop25h 20mSingapore Airlines
Deal found 4/2$750
This FlightHub deal was found by Cheapflights users on 4/1. 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.
Mon 4/2112:30 pmLAX - PNH
2 stops33h 05mChina Eastern
Fri 5/2312:40 pmPNH - LAX
3 stops35h 25mChina Eastern
Deal found 4/1$756
This oojo deal was found by Cheapflights users on 4/2. 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 5/112:25 pmLAX - PNH
1 stop38h 55mCathay Pacific
Wed 5/1411:25 amPNH - LAX
1 stop24h 40mCathay Pacific
Deal found 4/2$757
This CheapOair deal was found by Cheapflights users on 4/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2412:30 pmLAX - PNH
2 stops39h 20mMultiple Airlines
Thu 5/2912:20 pmPNH - LAX
1 stop21h 40mMultiple Airlines
Deal found 4/2$793
This Gotogate deal was found by Cheapflights users on 4/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/211:25 pmLAX - PNH
1 stop33h 40mAir China
Thu 5/1512:20 amPNH - LAX
1 stop33h 50mAir China
Deal found 4/1$796
This Korean Air deal was found by Cheapflights users on 4/1. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/111:40 pmLAX - PNH
1 stop32h 45mKorean Air
Wed 12/311:45 pmPNH - LAX
1 stop23h 45mKorean Air
Deal found 4/1$816
This oojo deal was found by Cheapflights users on 4/2. 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.
Wed 4/3012:05 amLAX - PNH
1 stop19h 45mChina Airlines
Wed 5/1410:50 amPNH - LAX
1 stop17h 05mChina Airlines
Deal found 4/2$852
This Justfly.com deal was found by Cheapflights users on 4/3. 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 4/812:05 amLAX - PNH
1 stop21h 10mEVA Air
Tue 4/2912:35 pmPNH - LAX
1 stop32h 35mEVA Air
Deal found 4/3$1,000
This Gurufare deal was found by Cheapflights users on 4/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1311:55 pmLAX - PNH
1 stop27h 05mXiamenAir
Mon 4/2111:50 amPNH - LAX
2 stops46h 10mXiamenAir
Deal found 4/1$1,014

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 April 3, 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 8/26

12:40 pm-10:55 pm

1 stop20h 15m

Phnom Penh Pochentong

Tue 9/16

11:55 pm-9:50 am

1 stop23h 55m

$742

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Fri 8/22

12:50 pm-12:15 am

1 stop21h 25m

Phnom Penh Pochentong

Sat 9/13

1:15 am-9:45 am

1 stop22h 30m

$749

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 8/25

2:20 pm-8:40 am

2 stops28h 20m

Phnom Penh Pochentong

Tue 9/16

6:55 pm-7:05 pm

1 stop38h 10m

$751

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 4/21

12:30 pm-11:35 am

2 stops33h 05m

Phnom Penh Pochentong

Fri 5/23

12:40 pm-10:05 am

3 stops35h 25m

$756

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 5/1

12:25 pm-5:20 pm

1 stop38h 55m

Phnom Penh Pochentong

Wed 5/14

11:25 am-10:05 pm

1 stop24h 40m

$757

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 4/24

12:30 pm-5:50 pm

2 stops39h 20m

Phnom Penh Pochentong

Thu 5/29

12:20 pm-8:00 pm

1 stop21h 40m

$793

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Fri 5/2

11:25 pm-11:05 pm

1 stop33h 40m

Phnom Penh Pochentong

Thu 5/15

12:20 am-8:10 pm

1 stop33h 50m

$796

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 4/28

7:00 am-10:10 pm

2 stops25h 10m

Phnom Penh Pochentong

Mon 5/26

11:30 pm-3:35 pm

1 stop30h 05m

$839

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 4/30

12:05 am-9:50 am

1 stop19h 45m

Phnom Penh Pochentong

Wed 5/14

10:50 am-1:55 pm

1 stop17h 05m

$852

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 4/24

11:40 am-11:15 am

1 stop33h 35m

Phnom Penh Pochentong

Mon 9/29

12:35 pm-8:55 pm

1 stop22h 20m

$969

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 22 results
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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 March 28, 2025.

The best time to book flights from Irvine to Phnom Penh is 83 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 $994). Flying from Irvine to Phnom Penh in June is currently the most expensive (average of $1,582). 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 April 3, 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.

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 9.8 inches per month. October is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 in.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 77.0 F).

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 April 3, 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air and China Airlines from Irvine to Phnom Penh to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,170 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,170 reviews
EVA Air
8.4
Very good
1,170 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,052 reviews
EVA Air
8.4
Very good
1,170 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Airlines
8.2
Very good
724 reviews
EVA Air
8.4
Very good
1,170 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Asiana Airlines
8.2
Very good
438 reviews
EVA Air
8.4
Very good
1,170 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Singapore Airlines
8.1
Very good
1,287 reviews
EVA Air
8.4
Very good
1,170 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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 Singapore Airlines ($370), Cathay Pacific ($398), and Korean Air ($407).

  • 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 $994). Flying from Irvine to Phnom Penh in June is currently the most expensive (average of $1,582). 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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$628Average$968FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$644Average$712FlexibilityNo cancel feeOn-time67%
China EasternCheapest$658Average$781FlexibilityNo cancel feeOn-time62%
Cathay PacificCheapest$709Average$869FlexibilityNo cancel feeOn-time72%
Philippine AirlinesCheapest$720Average$810FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$737Average$1,171FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$740Average$1,007FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$750Average$993FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$825Average$1,115FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$921Average$1,069FlexibilityNo cancel feeOn-time74%

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