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Phnom Penh

$365+ Cheap flights from Riverside, 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside 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 Riverside to Phnom Penh

Keep the following information in mind while searching for Riverside to Phnom Penh flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$736
(oojo)

One-way from

$365
(oojo)

Popular in

June

Cheapest in

February

Average price

$906
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 Riverside to Phnom Penh Pochentong
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One-way flight from Riverside to Phnom Penh Pochentong
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Highest demand for flights based on searches. 21% potential increase in price ($304 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Riverside to Phnom Penh

Cheapest flights from Riverside to Phnom Penh
Explore the most affordable flight options available from Riverside to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This oojo deal was found by Cheapflights users on 3/27. 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 4/2411:00 pmLAX - PNH
1 stop33h 55mAsiana Airlines
Thu 5/2911:55 pmPNH - LAX
1 stop23h 55mAsiana Airlines
Deal found 3/27$736
This StudentUniverse deal was found by Cheapflights users on 3/26. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:15 pmLAX - PNH
1 stop28h 30mCathay Pacific
Tue 11/1811:45 amPNH - LAX
1 stop16h 35mCathay Pacific
Deal found 3/26$739
This FlightHub deal was found by Cheapflights users on 3/27. 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 4/2412:30 pmLAX - PNH
2 stops33h 05mChina Eastern
Mon 5/2612:40 pmPNH - LAX
3 stops35h 25mChina Eastern
Deal found 3/27$746
This Gurufare deal was found by Cheapflights users on 3/26. 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.
Tue 9/1611:40 pmLAX - PNH
1 stop23h 30mSingapore Airlines
Tue 10/72:05 pmPNH - LAX
2 stops36h 45mSingapore Airlines
Deal found 3/26$770
This oojo deal was found by Cheapflights users on 3/26. 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 4/2512:30 pmLAX - PNH
1 stop19h 40mKorean Air
Sun 5/411:30 pmPNH - LAX
1 stop30h 05mKorean Air
Deal found 3/26$787
This FlightHub deal was found by Cheapflights users on 3/26. 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.
Fri 4/2511:25 pmLAX - PNH
1 stop33h 40mAir China
Sat 5/312:20 amPNH - LAX
1 stop24h 40mAir China
Deal found 3/26$794
This Gotogate deal was found by Cheapflights users on 3/25. 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.
Mon 5/1212:05 amLAX - PNH
1 stop19h 45mMultiple Airlines
Sat 5/243:35 pmPNH - LAX
1 stop18h 05mMultiple Airlines
Deal found 3/25$835
This oojo deal was found by Cheapflights users on 3/27. 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 4/312:50 pmLAX - PNH
1 stop21h 25mPhilippine Airlines
Thu 5/81:15 amPNH - LAX
1 stop22h 30mPhilippine Airlines
Deal found 3/27$840
This FlightHub deal was found by Cheapflights users on 3/27. 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 5/712:05 amLAX - PNH
1 stop19h 45mChina Airlines
Thu 5/225:10 pmPNH - LAX
1 stop17h 35mChina Airlines
Deal found 3/27$852
This FlightHub deal was found by Cheapflights users on 3/27. 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 4/911:40 amLAX - PNH
1 stop33h 35mEVA Air
Wed 4/3012:35 pmPNH - LAX
1 stop32h 35mEVA Air
Deal found 3/27$969

Cheapflights Fare Finder

Customize your flight search to find flights from Riverside 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 March 28, 2025.
Use the filters below to find and compare flights from Riverside to Phnom Penh that are best for you.

Fly from

Riverside

Fly to

Phnom Penh

Route

Depart

Return

Price

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 4/24

11:00 pm-10:55 pm

1 stop33h 55m

Phnom Penh Pochentong

Thu 5/29

11:55 pm-9:50 am

1 stop23h 55m

$736

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 4/24

12:30 pm-11:35 am

2 stops33h 05m

Phnom Penh Pochentong

Mon 5/26

12:40 pm-10:05 am

3 stops35h 25m

$746

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 5/1

12:25 pm-5:20 pm

1 stop38h 55m

Phnom Penh Pochentong

Wed 5/28

6:30 pm-10:05 pm

1 stop17h 35m

$757

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Fri 4/25

12:30 pm-10:10 pm

1 stop19h 40m

Phnom Penh Pochentong

Sun 5/4

11:30 pm-3:35 pm

1 stop30h 05m

$787

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Fri 4/25

11:25 pm-11:05 pm

1 stop33h 40m

Phnom Penh Pochentong

Sat 5/3

12:20 am-11:00 am

1 stop24h 40m

$794

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 5/12

12:05 am-9:50 am

1 stop19h 45m

Phnom Penh Pochentong

Sat 5/24

3:35 pm-7:40 pm

1 stop18h 05m

$835

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Thu 4/3

12:50 pm-12:15 am

1 stop21h 25m

Phnom Penh Pochentong

Thu 5/8

1:15 am-9:45 am

1 stop22h 30m

$840

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 5/7

12:05 am-9:50 am

1 stop19h 45m

Phnom Penh Pochentong

Thu 5/22

5:10 pm-8:45 pm

1 stop17h 35m

$852

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 4/9

11:40 am-11:15 am

1 stop33h 35m

Phnom Penh Pochentong

Wed 4/30

12:35 pm-7:10 am

1 stop32h 35m

$969

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 3/31

11:30 pm-5:20 pm

1 stop27h 50m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 18 results
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Best time to book a flight from Riverside to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Riverside 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 Riverside to Phnom Penh

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

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Phnom Penh. Price data was last updated on March 21, 2025.

The price you pay for your flight from Riverside to Phnom Penh may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Riverside to Phnom Penh (average of $995). Flying from Riverside 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 R1V to PNH?

Find hourly flight availability from Riverside 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 March 28, 2025.

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

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

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

Travelers seeking maximum savings on their Riverside 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 March 28, 2025.
Get a feel of what it's like to fly with EVA Air, Korean Air and China Airlines from Riverside to Phnom Penh by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

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
1,169 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

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
1,050 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

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
722 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

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
440 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

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
1,285 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

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 Riverside 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 Riverside?

    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 Riverside. Booking flights from Riverside to Pochentong (PNH) should be relatively easy as there are 0 daily inbound flights from Riverside from 10 different airlines.

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

    For one-way options, check prices for Singapore Airlines. According to our data, you can fly for as low as $365. Users have also found prices from $369 and $381 on Cathay Pacific and China Eastern, respectively.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Riverside to Phnom Penh (average of $995). Flying from Riverside 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 Riverside to Phnom Penh

Discover the top 10 airlines that operate flights from Riverside 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$628Average$966FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$644Average$712FlexibilityNo cancel feeOn-time67%
China EasternCheapest$658Average$786FlexibilityNo cancel feeOn-time62%
Cathay PacificCheapest$710Average$871FlexibilityNo cancel feeOn-time72%
Philippine AirlinesCheapest$720Average$810FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$737Average$1,181FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$739Average$1,003FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$750Average$1,005FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$826Average$1,108FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$921Average$1,071FlexibilityNo cancel feeOn-time74%
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