HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Phnom Penh

$23,026+ Cheap flights from the United States to Phnom Penh (PNH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from USA to Phnom Penh with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from USA to Phnom Penh

Cheapest flights from USA to Phnom Penh
Explore the most affordable flight options available from USA to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This American Airlines deal was found by Cheapflights users on 1/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:31 pm
LAX
-
PNH
3 stops30h 44m
Multiple Airlines
Thu 8/275:40 pm
PNH
-
LAX
2 stops31h 50m
Multiple Airlines
Deal found 1/17$23,026

Find flight deals from USA to Phnom Penh

Keep the following information in mind while searching for USA to Phnom Penh flight deals. Data was last updated January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Popular in

June

Cheapest in

February

Average price

$1,293
Provider with most accurate pricing for New York (NYC)-Phnom Penh Pochentong flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Phnom Penh Pochentong flights.
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Best time to book a flight from USA to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from USA 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 the United States to Phnom Penh

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

Currently, September is the cheapest month in which you can book a flight from USA to Phnom Penh (average of $494). Flying from USA to Phnom Penh in June is currently the most expensive (average of $858). 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.

The best insider tips for theUnited States to Phnom Penh flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Phnom Penh trip
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on Korean Air and Cathay Pacific

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more
Duncan Madden

Duncan Madden

Expert on EVA Air

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Robert Schrader

Robert Schrader

Expert on China Airlines

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on Singapore Airlines

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Marisa Garcia

Marisa Garcia

Expert on Asiana Airlines

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more

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 January 20, 2026.
See what other customers who have flown with EVA Air, Korean Air, and China Airlines from the United States to Phnom Penh have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,325 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
EVA Air
8.4
Very good
1,325 reviews
EVA Air
8.4
Very good
1,325 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Korean Air
8.4
Very good
1,187 reviews
EVA Air
8.4
Very good
1,325 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
China Airlines
8.3
Very good
799 reviews
EVA Air
8.4
Very good
1,325 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Singapore Airlines
8.1
Very good
1,433 reviews
EVA Air
8.4
Very good
1,325 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Cathay Pacific
7.6
Good
1,140 reviews
EVA Air
8.4
Very good
1,325 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.

Related info for your journey

Find useful and relevant information for your journey from USA 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 United States?

    For a flight from United States to Phnom Penh, you will be flying into Pochentong. Phnom Penh Pochentong (PNH) is just 5.0 mi from the center of the city.

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

    To fly one-way, consider booking your trip with China Southern, which is currently one of the cheapest options available, starting at $258. Singapore Airlines flights start at $306 while deals on Korean Air start at $309 one-way.

  • What are the most popular routes from USA to Phnom Penh?

    The most popular route from USA to Phnom Penh is Seattle/Tacoma Intl - Phnom Penh Pochentong. You may also consider San Francisco - Phnom Penh Pochentong or Jacksonville - Phnom Penh Pochentong.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from USA to Phnom Penh (average of $494). Flying from USA to Phnom Penh in June is currently the most expensive (average of $858). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for USA to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Siem Reap flights
Seattle to Phnom Penh flights
Minneapolis to Siem Reap flights
Los Angeles to Siem Reap flights
San Francisco to Phnom Penh flights
San Francisco to Siem Reap flights
John F Kennedy Intl to Siem Reap flights
Newark to Siem Reap flights
Dallas/Fort Worth to Siem Reap flights
Sacramento to Siem Reap flights
Jacksonville to Phnom Penh flights
Honolulu to Phnom Penh flights
Pierre Elliott Trudeau Intl to Phnom Penh flights
Hobby to Phnom Penh flights
Ontario to Siem Reap flights
O'Hare Intl to Siem Reap flights
Atlanta to Siem Reap flights
Newark to Krong Preah Sihanouk flights
Dallas/Fort Worth to Phnom Penh flights
Denver to Siem Reap flights
Los Angeles to Phnom Penh flights
Pearson Intl to Phnom Penh flights
Sky Harbor Intl to Phnom Penh flights
Orlando to Phnom Penh flights
Los Angeles to Krong Preah Sihanouk flights
Charlotte to Siem Reap flights
John F Kennedy Intl to Phnom Penh flights
Hobby to Siem Reap flights
Philadelphia to Siem Reap flights
Miami to Phnom Penh flights
Newark to Phnom Penh flights
Boise to Phnom Penh flights
Salt Lake City to Siem Reap flights
White Plains to Phnom Penh flights
Nashville to Phnom Penh flights
Boston to Siem Reap flights
South Bend to Phnom Penh flights
San Jose to Phnom Penh flights
Charleston to Phnom Penh flights
Kailua-Kona to Phnom Penh flights
Las Vegas to Phnom Penh flights
San Francisco to Krong Preah Sihanouk flights
Memphis to Phnom Penh flights
Melbourne to Phnom Penh flights
Portland to Siem Reap flights
Midway to Phnom Penh flights

Top 10 airlines flying from USA to Phnom Penh

Discover the top 10 airlines that operate flights from USA 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$560Average$676FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$565Average$1,064FlexibilityNo cancel feeOn-time81%
China EasternCheapest$643Average$980FlexibilityNo cancel feeOn-time62%
Philippine AirlinesCheapest$661Average$750FlexibilityNo cancel feeOn-time60%
Cathay PacificCheapest$698Average$1,057FlexibilityNo cancel feeOn-time72%
Asiana AirlinesCheapest$702Average$1,086FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$711Average$1,164FlexibilityNo cancel feeOn-time81%
Vietnam AirlinesCheapest$736Average$770FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$766Average$1,302FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$862Average$1,172FlexibilityNo cancel feeOn-time74%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.