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Cheap flights from the United States to Phnom Penh from $5,786

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Phnom Penh departing on 7/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from the United States to Phnom Penh

Recent round-trip flight deals from the United States to Phnom Penh

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Multiple Airlines Logo
LAX
-
PNH
8196 mimulti-stop
Multiple Airlines Logo
PNH
-
LAX
8196 mimulti-stop
Multiple Airlines
Multiple Airlines Logo
JFK
-
PNH
8824 mimulti-stop
Multiple Airlines Logo
PNH
-
JFK
8824 mimulti-stop
Multiple Airlines

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Customize your flight search to find flights from United States 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, momondo users made 832,500 searches. Data last updated June 21, 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

Cheapest one-way

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Wed 7/15

6:39 pm-10:00 am

2 stops52h 21m

$5,786

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Wed 7/15

7:25 am-10:00 am

3 stops39h 35m

$5,956

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Fri 7/17

7:25 am-10:00 am

3 stops39h 35m

$5,958

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Wed 7/15

5:45 pm-10:00 am

2 stops53h 15m

$6,095
Quickest one-way

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Wed 7/15

5:45 pm-10:00 am

3 stops29h 15m

$6,316

JacksonvillePhnom Penh

JAX - PNH

JAXPNH

Jacksonville

Tue 9/1

6:16 pm-10:00 am

3 stops52h 44m

$11,344

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Phnom Penh from

How to get the cheapest flight ticket from United States to Phnom Penh

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Phnom Penh?

In general, September 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 $473. If you aren’t able to travel to Phnom Penh during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $516.

Can stopping save me money on United States to Phnom Penh flights?

You could potentially save up to 17% on your flight if you consider stops on a United States to Phnom Penh flight.

Cheap United States to Phnom Penh flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Phnom Penh

Fastest flight time

24h 55m

Direct flights

None
The fastest flight from United States to Phnom Penh takes 24h 55m
There are no direct flights from United States to Phnom Penh. There are no popular flight routes from United States to Phnom Penh.
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Frequently asked questions about flying from the United States to Phnom Penh

  • When did momondo last update prices for flights from United States to Phnom Penh Pochentong Airport?

    Prices for flights from United States to Phnom Penh Pochentong Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United States to Phnom Penh Pochentong Airport?

  • How old do you have to be to fly from United States to Phnom Penh Pochentong Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Phnom Penh Pochentong Airport.

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

    The necessary travel and health documents for your Phnom Penh Pochentong Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United States to Phnom Penh

Compare and see reviews for airlines that fly from United States to Phnom Penh with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $521Free CancellationRating
8.2
1,547 reviews
Search Singapore Airlines flights
China SouthernPriceFrom $560Free CancellationRating
7.5
154 reviews
Search China Southern flights
China EasternPriceFrom $596Free CancellationRating
7.3
224 reviews
Search China Eastern flights
China AirlinesPriceFrom $628Free CancellationRating
8.3
829 reviews
Search China Airlines flights
Philippine AirlinesPriceFrom $661Free CancellationRating
7.3
1,002 reviews
Search Philippine Airlines flights
Cathay PacificPriceFrom $667Free CancellationRating
7.6
1,388 reviews
Search Cathay Pacific flights
Asiana AirlinesPriceFrom $728Free CancellationRating
8.1
546 reviews
Search Asiana Airlines flights
Vietnam AirlinesPriceFrom $738Free CancellationRating
7.7
273 reviews
Search Vietnam Airlines flights
Korean AirPriceFrom $765Free CancellationRating
8.4
1,218 reviews
Search Korean Air flights
EVA AirPriceFrom $969Free CancellationRating
8.5
1,478 reviews
Search EVA Air flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United States to Phnom Penh. momondo saves you time and could save you money on your trip.

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

All flight searches from United States to Phnom Penh on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from United States 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 from United States to Phnom Penh.

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

Price alerts on flights to Phnom Penh from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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