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Phnom Penh

$739+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside 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 Riverside to Phnom Penh

Keep the following information in mind while searching for Riverside to Phnom Penh flight deals. Data was last updated September 15, 2025.

Round-trip from

$1,647
(oojo)

One-way from

$739
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$783
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. 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 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 September 15, 2025.

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.
Fri 10/311:59 pmLAX - PNH
2 stops40h 56mEtihad Airways
Thu 10/307:55 amPNH - LAX
2 stops53h 37mEtihad Airways
Deal found 9/13$1,650
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 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 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.
Mon 10/1311:59 pmLAX - PNH
2 stops40h 56mMultiple Airlines
Thu 10/307:55 amPNH - LAX
2 stops45h 23mMultiple Airlines
Deal found 9/13$1,784
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.
Sat 12/2711:59 pmLAX - PNH
2 stops39h 31mMultiple Airlines
Thu 1/157:50 pmPNH - LAX
2 stops43h 09mMultiple Airlines
Deal found 9/13$1,786
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 oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/811:29 amLAX - PNH
2 stops53h 26mEtihad Airways
Tue 10/218:30 amPNH - LAX
2 stops52h 15mEtihad Airways
Deal found 9/13$1,849
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

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 September 15, 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

Tue 2/24

9:55 pm-6:30 am

2 stops41h 35m

Phnom Penh Pochentong

Tue 3/17

7:50 pm-5:19 pm

2 stops35h 29m

$1,649

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Wed 1/14

9:31 am-6:30 am

2 stops29h 59m

Phnom Penh Pochentong

Fri 1/23

7:55 am-4:52 pm

2 stops47h 57m

$1,653

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 2/2

11:20 pm-6:25 pm

2 stops52h 05m

Phnom Penh Pochentong

Mon 2/23

7:55 am-10:49 pm

2 stops53h 54m

$1,653

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Fri 2/6

11:20 pm-6:30 am

2 stops40h 10m

Phnom Penh Pochentong

Fri 2/27

7:55 am-10:49 pm

2 stops53h 54m

$1,653

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

Sat 10/4

6:00 am-6:55 am

2 stops34h 55m

Phnom Penh Pochentong

Mon 11/3

7:55 am-2:16 pm

2 stops45h 21m

$1,675

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

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

Sun 12/28

9:48 am-6:30 am

2 stops29h 42m

Phnom Penh Pochentong

Tue 1/27

7:50 pm-4:52 pm

2 stops36h 02m

$1,719

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 10/13

11:59 pm-6:55 am

2 stops40h 56m

Phnom Penh Pochentong

Thu 10/30

7:55 am-3:18 pm

2 stops45h 23m

$1,784

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 20 results
1
2

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 September 12, 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 63 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 $982). Flying from Riverside 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 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 September 15, 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.

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 15, 2025.
Peruse reviews from past customers who have flown with EVA Air, China Airlines, and Asiana Airlines from Riverside to Phnom Penh to help guide your decision. 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
1,236 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

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

Comfort

8.3

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

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

Comfort

8.3

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

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
479 reviews
EVA Air
8.4
Very good
1,236 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

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

Comfort

8.3

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

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

Comfort

8.3

Boarding

8.4

Crew

8.6

Overall

8.4

Entertainment

8.0

Food

8.1

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 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.

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

    Airlines like Etihad Airways fly from Riverside to Phnom Penh in about 41h 35m. The time it takes to get you to your destination can typically vary by up to . Riverside and Phnom Penh are separated by a distance of 8196 mi.

  • 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 $982). Flying from Riverside 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

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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 September 15, 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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