How long is the flight from USA to Phnom Penh?

Airlines like Etihad Airways fly from USA to Phnom Penh in about 27h 25m. The time it takes to get you to your destination can typically vary by up to . There are 8696 mi between USA and 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 $983). Flying from USA to Phnom Penh in June is currently the most expensive (average of $1,553). 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.

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.

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).

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

The most popular route from USA to Phnom Penh is Los Angeles - Phnom Penh Pochentong. You may also consider Boston Logan Intl - Phnom Penh Pochentong or Washington, D.C. Dulles Intl - Phnom Penh Pochentong.

What are the most popular airlines that fly from USA to Phnom Penh?

Before booking your flight from USA to Phnom Penh check out the most popular airlines for this route: EVA Air, Air China or China Airlines.

How far in advance should I book a flight from USA to Phnom Penh?

To save on the cost of your flight from USA to Phnom Penh, book at least 51 days before your planned departure. Booking around this time can save you about 25% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,021 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,419.

What is the cheapest month to fly from USA to Phnom Penh?

November is one of the best times of the year to fly to Phnom Penh from USA. Prices for November average $1,241 per person but you can even find prices for as low as $893. The most expensive prices can be found in the month of December. Opting for a November flight can save you 29% on your journey compared to booking in December

What is the cheapest time of day to fly from US to PNH?

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.

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.

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.

$682+ Flights from the United States to Phnom Penh

Round-trip from	$1,143 (oojo)
One-way from	$682 (Kiwi.com)
Popular in	December
Cheapest in	November
Average price	$1,080

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.

Read more about Korean Airby Yulia Denisyuk

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.

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.

Read more about Cathay Pacificby Yulia Denisyuk

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.

Read more about China Airlinesby Robert Schrader

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.

Read more about Singapore Airlinesby Gabriel Leigh

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.

Read more about Asiana Airlinesby Marisa Garcia

Airline	Cheapest	Average	Flexibility	On-time
China Southern	Cheapest$560	Average$980	FlexibilityNo cancel fee	On-time69%
Singapore Airlines	Cheapest$575	Average$1,126	FlexibilityNo cancel fee	On-time81%
Air China	Cheapest$644	Average$702	FlexibilityNo cancel fee	On-time67%
China Eastern	Cheapest$658	Average$993	FlexibilityNo cancel fee	On-time62%
Philippine Airlines	Cheapest$661	Average$776	FlexibilityNo cancel fee	On-time60%
Cathay Pacific	Cheapest$683	Average$1,006	FlexibilityNo cancel fee	On-time72%
Asiana Airlines	Cheapest$694	Average$1,105	FlexibilityNo cancel fee	On-time76%
Korean Air	Cheapest$732	Average$1,253	FlexibilityNo cancel fee	On-time81%
Vietnam Airlines	Cheapest$736	Average$774	FlexibilityNo cancel fee	On-time81%
China Airlines	Cheapest$770	Average$1,181	FlexibilityNo cancel fee	On-time70%

$682+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.

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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 September 11, 2025.

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Cheapest flights from USA to Phnom PenhExplore 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 September 11, 2025.

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 September 11, 2025.

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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.

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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?

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 September 11, 2025.

Reviews of airlines servicing Phnom Penh

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.

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?

How long is the flight from USA to Phnom Penh?

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?

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

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

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

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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 September 11, 2025.