Which airlines fly to Phnom Penh?

There may be other airlines that fly to Phnom Penh from United States, but the most popular among our users are Korean Air, EVA Air, Cathay Pacific and China Airlines. These airlines should offer flights to Phnom Penh on a routine basis if you’re flying from one of the more popular airports in United States.

How long does it take to fly to Phnom Penh?

The flight from United States to Phnom Penh depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Los Angeles (a popular airport in United States) to Phnom Penh Pochentong (the most popular airport in Phnom Penh), then the flight time is 29h on average. If you fly from Miami (another popular airport in United States) to Phnom Penh Pochentong, then the average flight time is 25h.

$576 Cheap Flights to Phnom Penh in 2025/26

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Find the cheapest flights from the United States to Phnom Penh

Round-trip

One-way

Cheap round-trip flights

4:30 pm - 6:55 amBOS-PNH

27h 25m1 stop

7:55 am - 2:10 pmPNH-BOS

42h 15m1 stop

$1,154Etihad Airways

Find Deal

Sat, Oct 4 - Fri, Nov 7

3:40 pm - 6:30 amBOS-PNH

26h 50m1 stop

7:50 pm - 2:10 pmPNH-BOS

30h 20m1 stop

$1,163Etihad Airways

Find Deal

Sat, Jan 31 - Sat, Feb 21

4:30 pm - 6:55 amBOS-PNH

27h 25m1 stop

7:50 pm - 2:10 pmPNH-BOS

30h 20m1 stop

$1,179Etihad Airways

Find Deal

Sun, Oct 5 - Thu, Nov 6

4:30 pm - 6:55 amBOS-PNH

27h 25m1 stop

7:50 pm - 2:10 pmPNH-BOS

30h 20m1 stop

$1,180Etihad Airways

Find Deal

Sat, Oct 4 - Thu, Feb 5

4:30 pm - 6:55 amBOS-PNH

27h 25m1 stop

7:55 am - 3:10 pmPNH-BOS

42h 15m1 stop

$1,181Etihad Airways

Find Deal

Sat, Oct 18 - Sat, Nov 1

10:05 pm - 6:30 amIAD-PNH

21h 25m1 stop

7:55 am - 3:50 pmPNH-IAD

43h 55m1 stop

$1,199Etihad Airways

Find Deal

Sat, Oct 25 - Tue, Nov 4

4:30 pm - 6:55 amBOS-PNH

27h 25m1 stop

7:50 pm - 2:10 pmPNH-BOS

30h 20m1 stop

$1,204Etihad Airways

Find Deal

Tue, Oct 7 - Thu, Feb 5

4:30 pm - 6:55 amBOS-PNH

27h 25m1 stop

7:55 am - 3:10 pmPNH-BOS

42h 15m1 stop

$1,226Etihad Airways

Find Deal

Tue, Oct 14 - Tue, Oct 28

11:25 pm - 6:55 amSFO-PNH

41h 30m2 stops

7:55 am - 7:55 pmPNH-SFO

50h 00m2 stops

$1,572

Find Deal

Mon, Oct 20 - Tue, Oct 28

1:55 pm - 6:55 amORD-PNH

29h 00m1 stop

1:55 pm - 11:10 amPNH-ORD

33h 15m3 stops

$1,615

Find Deal

Tue, Oct 14 - Tue, Oct 21

Fly from

Route

Depart

Return

Price

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 10/4

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Fri 11/7

7:55 am-2:10 pm

1 stop42h 15m

$1,154

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 1/31

3:40 pm-6:30 am

1 stop26h 50m

Phnom Penh Pochentong

Sat 2/21

7:50 pm-2:10 pm

1 stop30h 20m

$1,163

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sun 10/5

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Thu 11/6

7:50 pm-2:10 pm

1 stop30h 20m

$1,179

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 10/4

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Thu 2/5

7:50 pm-2:10 pm

1 stop30h 20m

$1,180

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 10/18

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Sat 11/1

7:55 am-3:10 pm

1 stop42h 15m

$1,181

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Sat 10/25

10:05 pm-6:30 am

1 stop21h 25m

Phnom Penh Pochentong

Tue 11/4

7:55 am-3:50 pm

1 stop43h 55m

$1,199

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 10/7

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Thu 2/5

7:50 pm-2:10 pm

1 stop30h 20m

$1,204

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 10/14

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Tue 10/28

7:55 am-3:10 pm

1 stop42h 15m

$1,226

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Mon 10/20

11:25 pm-6:55 am

2 stops41h 30m

Phnom Penh Pochentong

Tue 10/28

7:55 am-7:55 pm

2 stops50h 00m

$1,572

ChicagoPhnom Penh

ORD - PNH

ORDPNH

Chicago O'Hare Intl

Tue 10/14

1:55 pm-6:55 am

1 stop29h 00m

Phnom Penh Pochentong

Tue 10/21

1:55 pm-11:10 am

3 stops33h 15m

$1,615

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Phnom Penh flights insights and trends

Explore insights for your Phnom Penh flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to Phnom Penh?

In general, November is the cheapest month to fly from United States to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,053. If you aren’t able to travel to Phnom Penh during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,063.

What is the cheapest day to depart on your flight to Phnom Penh?

The cheapest day to depart from United States to Phnom Penh is on a Monday. Travelers who choose to depart for Phnom Penh on a Monday will often find tickets for as low as $1,186. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from United States to Phnom Penh for around $1,582.

What is the cheapest time of day to depart on your flight to Phnom Penh?

According to our data, the cheapest time of day to fly to Phnom Penh is in the evening. momondo users have found flights departing from United States to Phnom Penh in the evening for as low as $1,286. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Phnom Penh are more costly in the afternoon, with an average ticket price of $1,350. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Phnom Penh from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,235 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from United States for as low as $903 on momondo.

Cheapest flights to Phnom Penh Pochentong

Find the cheapest flights to Phnom Penh Pochentong from your nearest city or airport

Find flights from Los Angeles to Phnom Penh

CHEAPEST MONTH TO FLY TO PHNOM PENH FROM LOS ANGELES	September	23% cheaper	Flying from Los Angeles to Phnom Penh costs on average just $783 in September
MOST EXPENSIVE MONTH TO FLY TO PHNOM PENH FROM LOS ANGELES	June	41% more expensive	It costs about $1,421 for flights to Phnom Penh from Los Angeles in June
MOST POPULAR MONTH TO FLY TO PHNOM PENH FROM LOS ANGELES	February	515% more users visited	More momondo users searched in flights to Phnom Penh from Los Angeles in February than any other month

Cheap Phnom Penh flight deals and tips

Summary info about Phnom Penh flight prices, duration and airlines

Best One-Way Price	$576
Best Round-Trip Price	$1,154
Fastest flight time	21h 50m
Popular in	December

The best one-way flight price to Phnom Penh from United States in the last 72 hours is $576 (Washington, D.C. Dulles Intl to Phnom Penh Pochentong).

Search Deals

The best round-trip flight price to Phnom Penh from United States in the last 72 hours is $1,154 (Boston Logan Intl to Phnom Penh Pochentong).

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The fastest flight to Phnom Penh from United States takes 21h 50m (Washington, D.C. Dulles Intl to Phnom Penh Pochentong).

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December has the highest demand for flights to Phnom Penh, with a 8% price increase on average.

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Frequently asked questions about flying to Phnom Penh

What is there to do in Phnom Penh when it’s raining?

When planning your flight to Phnom Penh, it is important to be aware that some months are not as ideal as others. Specifically, the months of May, June, or July could carry a higher chance of rain, as Phnom Penh sees up to 5.1 inches or more. There are still things to do in Phnom Penh even when it's raining, but be aware that rain is highly probable in the area. While in Phnom Penh you will find Tuol Sleng Genocide Museum nearby which is a great museum to visit when you’re looking for things to do indoors.

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

We recommend purchasing flights from United States to Phnom Penh 69 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Phnom Penh for $1,244. However, in the past 72 hours, people saw flights from United States for as low as $922.

Is there an alternative airport near Phnom Penh?

Phnom Penh Techo Intl Airport can be an alternative airport used for travel to Phnom Penh.

Is there a cheaper alternative to flying into Phnom Penh?

With an average price of $192 per person, Phnom Penh Techo Intl Airport is the cheapest airport to fly into when planning your trip to Phnom Penh. This price can fluctuate based on where you are flying from. momondo’s Airport-to-Airport Pricing Tool can help users find the best prices.

What is the absolute cheapest flight to Phnom Penh?

In the past two weeks, users have booked deals to Phnom Penh for $54/person, which is 72% cheaper than the average flight to Phnom Penh. To find the cheapest price to Phnom Penh from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Phnom Penh Pochentong Airport?

Prices for flights to Phnom Penh Pochentong Airport are updated daily.

How many operators does momondo search for flights to Phnom Penh Pochentong Airport?

There are 30 operators available for flights to Phnom Penh Pochentong Airport as of September 2025.

How old do you have to be to fly to Phnom Penh Pochentong Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Phnom Penh Pochentong Airport.

What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

The required travel and health documents for your Phnom Penh Pochentong Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Phnom Penh Pochentong Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to Phnom Penh?

It is quick and easy to find flights to Phnom Penh on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Phnom Penh that suits you.

Can I find flights to Phnom Penh with flexible booking policies on momondo?

Flights to Phnom Penh with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights to Phnom Penh?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to Phnom Penh.

I’m not ready to book a flight to Phnom Penh right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Phnom Penh, momondo offers a useful price alert feature which will track prices for flights to Phnom Penh and alert you when they change.