Phnom Penh

$366+ Cheap flights from the United States 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PNH
Jul 8 — Jul 151
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

Keep the following information in mind while searching for USA to Phnom Penh flight deals. Data was last updated July 3, 2025.

Round-trip from

$725
(Ovago)

One-way from

$366
(oojo)

Popular in

December

Cheapest in

November

Average price

$1,456
From USA to Phnom Penh Pochentong
One-way flight from USA to Phnom Penh Pochentong
Highest demand for flights based on searches. 13% potential increase in price ($202 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($66 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find 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 July 3, 2025.

This Ovago deal was found by Cheapflights users on 7/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:00 pmORD - PNH
1 stop30h 15mCathay Pacific
Tue 10/76:30 pmPNH - ORD
1 stop31h 55mCathay Pacific
Deal found 7/3$725
This CrystalTravel deal was found by Cheapflights users on 7/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/710:55 pmDFW - PNH
1 stop30h 25mCathay Pacific
Mon 9/111:25 amPNH - DFW
1 stop18h 30mCathay Pacific
Deal found 7/1$741
This FlightHub deal was found by Cheapflights users on 7/1. 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 9/21:40 pmSFO - PNH
1 stop30h 35mCathay Pacific
Mon 9/296:30 pmPNH - SFO
1 stop18h 10mCathay Pacific
Deal found 7/1$797
This Korean Air deal was found by Cheapflights users on 7/3. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:00 pmSFO - PNH
2 stops43h 25mKorean Air
Sun 11/911:45 pmPNH - SFO
2 stops47h 11mKorean Air
Deal found 7/3$800
This Justfly.com deal was found by Cheapflights users on 7/3. 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.
Thu 11/209:40 amSFO - PNH
1 stop31h 55mSingapore Airlines
Wed 12/102:50 pmPNH - SFO
1 stop32h 00mSingapore Airlines
Deal found 7/3$803
This oojo deal was found by Cheapflights users on 7/2. 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 10/3011:30 pmSFO - PNH
1 stop34h 45mPhilippine Airlines
Sat 11/81:15 amPNH - SFO
1 stop33h 15mPhilippine Airlines
Deal found 7/2$806
This Asiana Airlines deal was found by Cheapflights users on 7/2. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3011:30 pmSFO - PNH
1 stop32h 25mAsiana Airlines
Thu 2/2611:55 pmPNH - SFO
1 stop30h 05mAsiana Airlines
Deal found 7/2$807
This ScholarTrip deal was found by Cheapflights users on 7/3. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:00 amONT - PNH
2 stops26h 10mKorean Air
Sun 9/2811:30 pmPNH - ONT
2 stops37h 10mKorean Air
Deal found 7/3$811
This Gurufare deal was found by Cheapflights users on 7/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/168:55 amSFO - PNH
2 stops24h 20mChina Eastern
Sat 8/166:50 pmPNH - SFO
3 stops52h 15mChina Eastern
Deal found 7/3$813
This United deal was found by Cheapflights users on 7/3. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/64:30 pmORD - PNH
2 stops28h 10mMultiple Airlines
Sun 9/142:05 pmPNH - ORD
2 stops28h 19mMultiple Airlines
Deal found 7/3$820
This CrystalTravel deal was found by Cheapflights users on 7/2. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1112:30 amBOS - PNH
1 stop21h 55mCathay Pacific
Wed 12/311:45 amPNH - BOS
1 stop22h 15mCathay Pacific
Deal found 7/2$836
This CrystalTravel deal was found by Cheapflights users on 7/2. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:00 amBOS - PNH
1 stop23h 25mKorean Air
Wed 12/311:45 pmPNH - BOS
2 stops26h 03mKorean Air
Deal found 7/2$839

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 July 3, 2025.
Use the filters below to find and compare flights from the United States to Phnom Penh that are best for you.

Fly from

USA

Fly to

Phnom Penh

Route

Depart

Return

Price

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Wed 10/1

4:00 pm-10:15 am

1 stop30h 15m

Phnom Penh Pochentong

Tue 10/7

6:30 pm-2:25 pm

1 stop31h 55m

$725

DallasPhnom Penh

DFW - PNH

DFWPNH

Dallas/Fort Worth

Thu 8/7

10:55 pm-5:20 pm

1 stop30h 25m

Phnom Penh Pochentong

Mon 9/1

11:25 am-5:55 pm

1 stop18h 30m

$741

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Tue 9/2

1:40 pm-10:15 am

1 stop30h 35m

Phnom Penh Pochentong

Wed 10/1

6:30 pm-10:40 pm

1 stop18h 10m

$797

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Thu 10/30

1:00 pm-10:25 pm

2 stops43h 25m

Phnom Penh Pochentong

Sun 11/9

11:45 pm-7:56 am

2 stops47h 11m

$800

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Thu 11/20

9:40 am-8:35 am

1 stop31h 55m

Phnom Penh Pochentong

Wed 12/10

2:50 pm-7:50 am

1 stop32h 00m

$803

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Thu 10/30

11:30 pm-12:15 am

1 stop34h 45m

Phnom Penh Pochentong

Sat 11/8

1:15 am-7:30 pm

1 stop33h 15m

$806

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Sun 11/30

11:30 pm-10:55 pm

1 stop32h 25m

Phnom Penh Pochentong

Mon 2/23

11:55 pm-3:00 pm

1 stop30h 05m

$807

OntarioPhnom Penh

ONT - PNH

ONTPNH

Ontario

Thu 9/11

6:00 am-10:10 pm

2 stops26h 10m

Phnom Penh Pochentong

Sun 9/28

11:30 pm-10:40 pm

2 stops37h 10m

$811

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Wed 7/16

8:55 am-11:15 pm

2 stops24h 20m

Phnom Penh Pochentong

Sat 8/16

6:50 pm-9:05 am

3 stops52h 15m

$813

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Sat 9/6

4:30 pm-8:40 am

2 stops28h 10m

Phnom Penh Pochentong

Sun 9/14

2:05 pm-6:24 am

2 stops28h 19m

$820

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 60 results
1
2
3
...
6

The best insider tips for theUnited States to Phnom Penh flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Phnom Penh trip
Airlines
EVA Air

EVA Air's Royal Laurel Class offers lie-flat seats with 82” pitch and 1-2-1 configuration.


EVA Air's economy class offers 33” pitch on 777s, providing ample legroom for long-haul flights.

Read more about EVA Airby Duncan Madden
Korean Air

Korean Air's economy class offers 33”-34” pitch, providing more space than many competitors.


Korean Air's Prestige Suites offer lie-flat seats with 75” pitch and 21” width.

Cathay Pacific

Cathay Pacific's economy class offers 32” pitch and 18”-18.5” width, exceeding US counterparts.


Cathay Pacific's business class offers reverse herringbone seats with 81” pitch on Boeing 777s.

China Airlines

China Airlines' Premium Business Class offers lie-flat seats in a 1-2-1 configuration.


China Airlines' economy class offers 32” pitch and complimentary beer, wine, and spirits.

Singapore Airlines

Singapore Airlines offers free unlimited Wi-Fi for all passengers, enhancing connectivity during flights.


Singapore's premium economy offers 38” legroom, upgraded meals, and noise-canceling headphones.

Asiana Airlines

Asiana's A380 business suite offers a 25”-wide seat converting to a fully flat 81” bed.


Economy seats on Asiana's A350 are 18” wide with 32”-33” pitch, offering in-flight Wi-Fi.

Our travel experts
Duncan Madden

Duncan Madden

Expert on EVA Air

Duncan Madden

Duncan Madden

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 Denisyuk

Yulia Denisyuk

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

Robert Schrader

Robert Schrader

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 Leigh

Gabriel Leigh

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 Garcia

Marisa Garcia

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

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, March is the cheapest month in which you can book a flight from USA to Phnom Penh (average of $989). Flying from USA to Phnom Penh in June is currently the most expensive (average of $1,555). 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 US to PNH?

Find hourly flight availability from USA 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 July 3, 2025.

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

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 July 3, 2025.
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.

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 Vietnam Airlines, which is currently one of the cheapest options available, starting at $366. Cathay Pacific flights start at $382 while deals on Asiana Airlines start at $392 one-way.

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

  • 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, March is the cheapest month in which you can book a flight from USA to Phnom Penh (average of $989). Flying from USA to Phnom Penh in June is currently the most expensive (average of $1,555). 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.

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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$563Average$1,204FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$644Average$712FlexibilityNo cancel feeOn-time67%
China EasternCheapest$660Average$843FlexibilityNo cancel feeOn-time62%
Philippine AirlinesCheapest$661Average$845FlexibilityNo cancel feeOn-time60%
Singapore AirlinesCheapest$683Average$1,126FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$694Average$1,084FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$709Average$999FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$733Average$1,235FlexibilityNo cancel feeOn-time81%
Vietnam AirlinesCheapest$736Average$775FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$833Average$1,174FlexibilityNo cancel feeOn-time70%

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.