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Phnom Penh

$2,982+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Apr 2 — Apr 91
Thu 4/2
Thu 4/9
1 adult, Economy
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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 March 3, 2026.

This British Airways deal was found by Cheapflights users on 2/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:15 pm
IAD
-
PNH
2 stops51h 45m
British Airways
Tue 8/116:20 pm
PNH
-
IAD
2 stops36h 20m
British Airways
Deal found 2/27$2,982
This British Airways deal was found by Cheapflights users on 3/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/125:40 pm
IAD
-
PNH
2 stops53h 20m
British Airways
Sun 8/96:20 pm
PNH
-
IAD
2 stops34h 05m
British Airways
Deal found 3/2$3,092
This CheapOair deal was found by Cheapflights users on 3/2. 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 7/3010:25 pm
IAD
-
PNH
2 stops48h 35m
Multiple Airlines
Tue 8/116:20 pm
PNH
-
IAD
3 stops32h 10m
Multiple Airlines
Deal found 3/2$3,199

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 March 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$2,982
(British Airways)

Popular in

June

Cheapest in

February

Average price

$1,211
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
From USA to Phnom Penh Pochentong
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA 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 3, 2026.
Use the filters below to find and compare flights from the United States to Phnom Penh that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

7:15 pm-10:00 am

2 stops51h 45m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-7:40 pm

2 stops36h 20m

$2,982

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Sun 7/12

5:40 pm-10:00 am

2 stops53h 20m

Phnom Penh Pochentong

Sun 8/9

6:20 pm-5:25 pm

2 stops34h 05m

$3,092

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

10:25 pm-10:00 am

2 stops48h 35m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-3:30 pm

3 stops32h 10m

$3,199

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 7/20

4:25 pm-10:00 am

2 stops51h 35m

$6,666

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Mon 8/10

8:55 pm-10:00 am

3 stops47h 05m

$6,857

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Sorted by cheapest first

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 $861). 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
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
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
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 March 3, 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
1,362 reviews

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
EVA Air
8.4
Very good
1,362 reviews
EVA Air
8.4
Very good
1,362 reviews

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Korean Air
8.4
Very good
1,195 reviews
EVA Air
8.4
Very good
1,362 reviews

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
China Airlines
8.3
Very good
809 reviews
EVA Air
8.4
Very good
1,362 reviews

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Singapore Airlines
8.2
Very good
1,465 reviews
EVA Air
8.4
Very good
1,362 reviews

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Cathay Pacific
7.6
Good
1,187 reviews
EVA Air
8.4
Very good
1,362 reviews

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

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.

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

    Airlines like British Airways fly from USA to Phnom Penh in about 51h 45m. The time it takes to get you to your destination can typically vary by up to . There are 8939 mi between USA and Phnom Penh.

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

    To fly one-way, consider booking your trip with Singapore Airlines, which is currently one of the cheapest options available, starting at $306. Korean Air flights start at $309 while deals on Cathay Pacific start at $348 one-way.

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

    The most popular route from USA to Phnom Penh is Jacksonville - Phnom Penh Pochentong. You may also consider Los Angeles - Phnom Penh Pochentong or Orlando - 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 $861). 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 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 March 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$462Average$580FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$565Average$1,060FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$656Average$715FlexibilityNo cancel feeOn-time60%
China EasternCheapest$661Average$818FlexibilityNo cancel feeOn-time62%
Cathay PacificCheapest$707Average$1,114FlexibilityNo cancel feeOn-time72%
Asiana AirlinesCheapest$707Average$1,171FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$717Average$1,255FlexibilityNo cancel feeOn-time70%
Vietnam AirlinesCheapest$736Average$752FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$744Average$1,122FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$892Average$1,203FlexibilityNo cancel feeOn-time74%

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