$438 Find Cheap Flights from Phnom Penh to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phnom Penh to the United States departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Best United States Flight Deals from Phnom Penh

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop$1,029
Los Angeles
Los Angeles1 stop$717
Miami
Miami2 stops$1,395
San Francisco
San Francisco1 stop$684
Boston
Boston3 stops$1,178
Washington, D.C.
Washington, D.C.2 stops$1,267
Denver
Denver2 stops$1,304
Seattle
Seattle1 stop$763
Atlanta
Atlanta2 stops$1,101
Houston
Houston3 stops$1,080
Honolulu
Honolulu1 stop$848
San Diego
San Diego3 stops$1,139
New York
New York1 stop$1,029
Los Angeles
Los Angeles1 stop$717
Miami
Miami2 stops$1,395
San Francisco
San Francisco1 stop$684
Boston
Boston3 stops$1,178
Washington, D.C.
Washington, D.C.2 stops$1,267
Denver
Denver2 stops$1,304
Seattle
Seattle1 stop$763
Atlanta
Atlanta2 stops$1,101
Houston
Houston3 stops$1,080
Honolulu
Honolulu1 stop$848
San Diego
San Diego3 stops$1,139

Cheap Flights from Phnom Penh to the United States

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phnom Penh to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Mon, Sep 8 - Mon, Sep 15
 Logo
11:30 pm - 3:30 pmPNH-SFO
30h 00m1 stop
 Logo
11:30 pm - 10:10 pmSFO-PNH
32h 40m1 stop
Tue, Sep 9 - Thu, Sep 25
Philippine Airlines Logo
1:15 am - 8:40 pmPNH-LAX
33h 25m1 stop
Philippine Airlines Logo
12:50 pm - 12:15 amLAX-PNH
21h 25m1 stop
$717Philippine Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 27
Asiana Airlines Logo
11:55 pm - 3:00 pmPNH-SFO
30h 05m1 stop
Asiana Airlines Logo
11:30 pm - 10:55 pmSFO-PNH
32h 25m1 stop
$791Asiana Airlines
Find Deal
Wed, Sep 10 - Thu, Sep 25
Asiana Airlines Logo
11:55 pm - 4:00 pmPNH-LAX
30h 05m1 stop
Asiana Airlines Logo
12:10 pm - 10:55 pmLAX-PNH
20h 45m1 stop
$848Asiana Airlines
Find Deal
Tue, Jul 1 - Wed, Jul 23
Cathay Pacific Logo
11:25 am - 10:55 pmPNH-SFO
25h 30m1 stop
Cathay Pacific Logo
12:05 am - 5:20 pmSFO-PNH
27h 15m1 stop
$917Cathay Pacific
Find Deal
Wed, Sep 10 - Wed, Sep 24
Cathay Pacific Logo
11:25 am - 10:35 pmPNH-LAX
25h 10m1 stop
Cathay Pacific Logo
12:30 am - 10:15 amLAX-PNH
19h 45m1 stop
$917Cathay Pacific
Find Deal
Mon, Nov 3 - Mon, Nov 17
Korean Air Logo
11:45 pm - 10:00 amPNH-JFK
22h 15m1 stop
Korean Air Logo
12:50 am - 10:25 pmJFK-PNH
33h 35m1 stop
$1,029Korean Air
Find Deal
Wed, Jun 25 - Sun, Jul 6
EVA Air Logo
12:35 pm - 7:10 amPNH-LAX
32h 35m1 stop
EVA Air Logo
12:50 am - 11:15 amLAX-PNH
20h 25m1 stop
$1,089EVA Air
Find Deal
Sat, Jun 28 - Thu, Aug 28
EVA Air Logo
12:35 pm - 8:55 pmPNH-LAX
22h 20m1 stop
EVA Air Logo
1:25 am - 11:15 amLAX-PNH
19h 50m1 stop
$1,093EVA Air
Find Deal
Wed, Jul 23 - Fri, Oct 17
Korean Air Logo
11:30 pm - 10:50 amPNH-SEA
25h 20m1 stop
Korean Air Logo
12:50 pm - 10:10 pmSEA-PNH
19h 20m1 stop
$1,169Korean Air
Find Deal
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KAYAK's insights & trends for Phnom Penh to the United States flights

Get data-powered insights and trends into flights from Phnom Penh to the United States to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Phnom Penh to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phnom Penh to the United States, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phnom Penh to the United States is November, when tickets cost $1,128 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of round-trip tickets is $1,437 and $1,419 respectively.

What’s the cheapest day of the week to fly from Phnom Penh to United States?

The average price of all round-trip flights from Phnom Penh to the United States clicked on KAYAK for each day over the last 12 months.

For Phnom Penh to United States, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from United States back to Phnom Penh, the best deals are generally found on Monday, with Friday being the most expensive.


Good to know

Low seasonJanuary
High seasonSeptember
Cheapest flight$438
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Phnom Penh to Los Angeles

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Phnom Penh to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phnom Penh to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phnom Penh to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Phnom Penh to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phnom Penh to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Phnom Penh to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phnom Penh to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Phnom Penh to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the evening, when round-trip flights cost $1,266 on average. Morning departures are around 12% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,416.

Top 5 airlines serving from Phnom Penh to the United States

 
Need help choosing which airline to fly with from Phnom Penh to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
EVA AirOverall score based on 1202 reviews
8.0Entertainment
8.6Crew
8.3Comfort
8.4Boarding
8.1Food
Airline reviews

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. Oh and the seats were more comfortable, had more ability to lean and the headrest was much better for flight sleeping. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

10.0 ExcellentAnonymous, May 2025TPE - SEA
Read more EVA Air reviews

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. Oh and the seats were more comfortable, had more ability to lean and the headrest was much better for flight sleeping. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

Sub sandwhich for a snack through mid flight and giving a bottle water was a good idea

seats are pitched well. you don't feel too tight.

For the price, it was better than other airlines; quality of food and service was very good.

Movie selection was not as good as recent flights I've taken (EVA and other airlines).

Great but I am not sure why I was placed in zone 4 for boarding despite being an Infinity Member??? Can you explain online. Thanks

Clean plane, friendly crew, mostly on-time departure. Negativo since there were no snacks offered. Cold drinks only was fine due to turbulence, but nothing to eat? Really?

Excellent food. Good service. Crammed Premium Economy seats. I Asked to change seats during check in. They told me the flight was fully booked. But on board I saw empty seats where I could have been easily relocated.

The staff was marvelous. The entertainment options were terrible, old or 2nd rate movies. I was unable to entertain myself for 18 hours-it made it seem even longer. Note: I thought about upgrading but your information about what was included was unclear. Are the seats bigger? Are there current moves? What kind of food do you get? Would the upgrade compare to Delta? Just saying the upgrade is better didn’t convince me and I regret not flying Delta.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

I loved everything, I was just a little confused on my bag allowance. When I checked in it said I was allowed 2 check in bags, but when I got there they said I was only allowed 1 so I had to pay an additional 200 dollars! Other then that everything was great! I would love to use your Airlines again when I fly out to Manila again in late May, however I want to be able to have 2 bags included this time lol 😆

Been flying with China Airline over years many times. Good experience with them, no issues.

Staff was so nice and very helpful with directions aswell!

It was our first time flying with China Airlines and had a very nice experience. The airline staff & crews both on the ground and air were very nice. Food on the plane was very good. Will recommend it to family and friends.

My ticket did not indication which group I was in for boarding; the gate attended help me

I would like to commend the staff from this flight. They all looked happy and I can tell they love what they are doing and constantly smiling while serving the passengers. Special mention to the guy FA in our section. I did not get his name but he is so far the best F.A I have ever encountered!

staff are super nice and effiecient! It was a very comfortable and relaxing flight

Boarding could have been a little bit better but other than that it was a pretty good experience. I think because of the stowaway to Paris France recently they are being extra diligent about boarding passes at the gate. But they boarded the back of the plane first, and that's something I really think needs to start in the USA.

Didn't like on this return inbound flights (from Hong Kong to Vancouver) Outbound to the Hong Kong was good.

I was ordered vegetarian food, but didn't services to me :(

I did not take the flight, tried to cancel it right after I booked it, but was unable to reach anyone. I blame Kayak for this situation because they sent the booking through another company and I was unable to get anyone to talk to me about the situation. I had to just take the hit and pay for another flight through Cathay Pacific, which was wonderful. I will never use Kayak again. (I bet they don’t post this review!) I’ll just post about them on social media sites. I don’t want anyone to have to go through the hassle and expense I dealt with.

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Staff always with a smile and very helpful with my mom who has mobility issues.

It was amazing. I was not expecting the phenomenal customer service Asiana provides.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Two meals were served on this flight; one was a repeat of the meal I had had on the flight immediately preceding this one, which was bad enough I didn't even try it. Drinks were very limited. All I wanted was water, and on a 10.5 hour flight, I was given 3 cups of about 3 ounces each.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Drinks were very limited. All I wanted was water, and on a 4 hour flight, I was given 2 cups of about 3 ounces each.

We took business class, It was comfortable and I was able to sleep.

Everything was perfect. A flight attendant even brought me snacks after I declined food due to my desire to force myself to follow the destination time zone.

For the most part, it was an enjoyable experience. It's the 2nd half of the journey was a bit uncomfortable. It was on a noticable smaller plane compared to the previous one.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

The food and service was great. You have to pay a lot for in flight Internet though which is lame.

Flight was delayed at the last minute for six hours. Instead of delaying it to a normal hour, they moved it to 10 pm to essentially make it a redeye. There was no compensation or benefit offered for this inconvenience. Once on the plane, Inpaid for WiFi twice with both times it not working because of a “weak WiFi signal”, according to the flight attendants. They also chose the farther possible gates in both airports from the entrance/exit, even though they were one of the few active flights left so late in the evening. Overall it was pretty horrible.

I had high expectations but met with a below average experience. I hope the Airline will take a notice and improve.

Special request meals are really below average. Vegetarian options are very limited if you didn't prebook.

Very noisy and careless crew on this overnight flight. They should understand customers want to sleep

Everything was fine and I have no complaints or things to note.

The flight was delayed for 30 mins. The overall experience was good.

The economy seats are much indeed roomier. Meals needs improvement.

It was okay overall but the food was very, very bad.

Horrible. No good food. Baggage missed to onboard and came after a day. No support to compensate the delay. Customer care cannot see the status of the complaint. No reply of the email.

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