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Cheap flights from the United States to Phnom Penh from $2,279

This is the cheapest round-trip 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 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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

Enter your travel dates to find the best prices.
British Airways Logo
8:55 pm - 10:00 am
LAX
-
PNH
47h 05m
2 stops
British Airways Logo
6:20 pm - 3:00 pm
PNH
-
LAX
34h 40m
2 stops
$2,279British Airways
Tue, Sep 22 - Tue, Sep 29
British Airways Logo
3:50 pm - 10:00 am
LAX
-
PNH
52h 10m
2 stops
British Airways Logo
6:20 pm - 11:30 am
PNH
-
LAX
31h 10m
2 stops
$2,369British Airways
Tue, Sep 15 - Wed, Oct 14
British Airways Logo
8:55 pm - 10:00 am
LAX
-
PNH
47h 05m
2 stops
British Airways Logo
6:20 pm - 3:00 pm
PNH
-
LAX
34h 40m
2 stops
$2,389British Airways
Tue, Sep 8 - Wed, Sep 16
British Airways Logo
8:15 pm - 10:00 am
BOS
-
PNH
50h 45m
2 stops
British Airways Logo
6:20 pm - 5:00 pm
PNH
-
BOS
33h 40m
2 stops
$2,398British Airways
Mon, Sep 14 - Fri, Oct 16
British Airways Logo
8:55 pm - 10:00 am
LAX
-
PNH
47h 05m
2 stops
British Airways Logo
6:20 pm - 8:15 pm
PNH
-
LAX
39h 55m
2 stops
$2,444British Airways
Fri, Aug 14 - Mon, Oct 5
British Airways Logo
8:55 pm - 10:00 am
LAX
-
PNH
47h 05m
2 stops
British Airways Logo
6:20 pm - 8:15 pm
PNH
-
LAX
39h 55m
2 stops
$2,445British Airways
Fri, Aug 14 - Mon, Oct 5
British Airways Logo
7:25 am - 10:00 am
BOS
-
PNH
39h 35m
2 stops
British Airways Logo
6:20 pm - 7:27 pm
PNH
-
BOS
36h 07m
3 stops
$2,469British Airways
Mon, Sep 14 - Fri, Oct 16
British Airways Logo
8:55 pm - 10:00 am
LAX
-
PNH
47h 05m
2 stops
British Airways Logo
6:20 pm - 6:20 pm
PNH
-
LAX
38h 00m
2 stops
$2,499British Airways
Tue, Aug 4 - Tue, Aug 18
British Airways Logo
9:50 pm - 10:00 am
BOS
-
PNH
49h 10m
2 stops
British Airways Logo
6:20 pm - 5:05 pm
PNH
-
BOS
33h 45m
2 stops
$2,507British Airways
Mon, Aug 17 - Wed, Sep 2
Multiple Airlines Logo
4:20 pm - 10:00 am
LAX
-
PNH
51h 40m
2 stops
Multiple Airlines Logo
6:20 pm - 10:35 pm
PNH
-
LAX
42h 15m
3 stops
$4,653Multiple Airlines
Tue, Sep 1 - Wed, Sep 9

British Airways flights from United States to Phnom Penh

Our best British Airways deals on United States to Phnom Penh flight tickets
British Airways
Sep 22
LAX8:55 pmLos Angeles
47h 05m
2 stops
PNH10:00 amPhnom Penh Pochentong
Sep 29
PNH6:20 pmPhnom Penh Pochentong
34h 40m
2 stops
LAX3:00 pmLos Angeles
$2,279
British Airways
Sep 15
LAX3:50 pmLos Angeles
52h 10m
2 stops
PNH10:00 amPhnom Penh Pochentong
Oct 14
PNH6:20 pmPhnom Penh Pochentong
31h 10m
2 stops
LAX11:30 amLos Angeles
$2,369
British Airways
Sep 8
LAX8:55 pmLos Angeles
47h 05m
2 stops
PNH10:00 amPhnom Penh Pochentong
Sep 16
PNH6:20 pmPhnom Penh Pochentong
34h 40m
2 stops
LAX3:00 pmLos Angeles
$2,389

momondo Fare Finder

 
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 May 4, 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 round-trip

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Tue 9/22

8:55 pm-10:00 am

2 stops47h 05m

Phnom Penh Pochentong

Tue 9/29

6:20 pm-3:00 pm

2 stops34h 40m

$2,279

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Tue 9/15

3:50 pm-10:00 am

2 stops52h 10m

Phnom Penh Pochentong

Wed 10/14

6:20 pm-11:30 am

2 stops31h 10m

$2,369

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Tue 9/8

8:55 pm-10:00 am

2 stops47h 05m

Phnom Penh Pochentong

Wed 9/16

6:20 pm-3:00 pm

2 stops34h 40m

$2,389

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Mon 9/14

8:15 pm-10:00 am

2 stops50h 45m

Phnom Penh Pochentong

Fri 10/16

6:20 pm-5:00 pm

2 stops33h 40m

$2,398

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Fri 8/14

8:55 pm-10:00 am

2 stops47h 05m

Phnom Penh Pochentong

Mon 10/5

6:20 pm-8:15 pm

2 stops39h 55m

$2,444

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Fri 8/14

8:55 pm-10:00 am

2 stops47h 05m

Phnom Penh Pochentong

Mon 10/5

6:20 pm-8:15 pm

2 stops39h 55m

$2,445
Quickest round-trip

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Mon 9/14

7:25 am-10:00 am

2 stops39h 35m

Phnom Penh Pochentong

Fri 10/16

6:20 pm-7:27 pm

3 stops36h 07m

$2,469

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Tue 8/4

8:55 pm-10:00 am

2 stops47h 05m

Phnom Penh Pochentong

Tue 8/18

6:20 pm-6:20 pm

2 stops38h 00m

$2,499

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Mon 8/17

9:50 pm-10:00 am

2 stops49h 10m

Phnom Penh Pochentong

Wed 9/2

6:20 pm-5:05 pm

2 stops33h 45m

$2,507

Los AngelesPhnom Penh

LAX - PNH

LAXPNH

Los Angeles

Tue 9/1

4:20 pm-10:00 am

2 stops51h 40m

Phnom Penh Pochentong

Wed 9/9

6:20 pm-10:35 pm

3 stops42h 15m

$4,653

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 $521.

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.
Search flight deals

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
1,508 reviews
Search Singapore Airlines flights
Philippine AirlinesPriceFrom $537Free CancellationRating
7.3
994 reviews
Search Philippine Airlines flights
China SouthernPriceFrom $560Free CancellationRating
7.4
151 reviews
Search China Southern flights
China EasternPriceFrom $674Free CancellationRating
7.3
209 reviews
Search China Eastern flights
Cathay PacificPriceFrom $681Free CancellationRating
7.6
1,313 reviews
Search Cathay Pacific flights
Korean AirPriceFrom $711Free CancellationRating
8.4
1,216 reviews
Search Korean Air flights
Asiana AirlinesPriceFrom $722Free CancellationRating
8.1
530 reviews
Search Asiana Airlines flights
Vietnam AirlinesPriceFrom $738Free CancellationRating
7.7
264 reviews
Search Vietnam Airlines flights
China AirlinesPriceFrom $748Free CancellationRating
8.3
819 reviews
Search China Airlines flights
EVA AirPriceFrom $817Free CancellationRating
8.5
1,442 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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