PNH - SEA

$460 Find Cheap Flights from Phnom Penh to Seattle

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 Seattle departing on 5/22. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to Seattle, as well as popular online travel agencies
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Cheap Flight Deals from Phnom Penh to Seattle (PNH-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phnom Penh to Seattle 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.

Recent round-trip flight deals from Phnom Penh to Seattle

KAYAK's recommended round-trip deals from the most popular airlines that fly from Phnom Penh to Seattle.
Discover the best prices for you by selecting your travel dates on KAYAK.
Philippine Airlines Logo
1:15 am - 7:15 pmPNH-SEA
32h 00m1 stop
Philippine Airlines Logo
11:55 pm - 12:15 amSEA-PNH
33h 20m1 stop
$850Philippine Airlines
Find Deal
Sat, May 24 - Sun, Nov 2
Asiana Airlines Logo
11:55 pm - 12:30 pmPNH-SEA
26h 35m1 stop
Asiana Airlines Logo
2:00 pm - 10:55 pmSEA-PNH
17h 55m1 stop
$933Asiana Airlines
Find Deal
Sun, May 25 - Sun, Nov 2
Korean Air Logo
11:30 pm - 1:40 pmPNH-SEA
28h 10m1 stop
Korean Air Logo
12:55 pm - 10:10 pmSEA-PNH
19h 15m1 stop
$977Korean Air
Find Deal
Thu, Jun 5 - Thu, Jun 12
China Airlines Logo
10:50 am - 7:30 pmPNH-SEA
22h 40m1 stop
China Airlines Logo
1:10 am - 4:15 pmSEA-PNH
25h 05m1 stop
$992China Airlines
Find Deal
Sun, May 25 - Sat, Nov 1
China Airlines Logo
5:10 pm - 7:30 pmPNH-SEA
16h 20m1 stop
China Airlines Logo
1:40 am - 9:50 amSEA-PNH
18h 10m1 stop
$1,015China Airlines
Find Deal
Mon, Jun 23 - Mon, Jul 14
 Logo
9:25 am - 4:10 pmPNH-SEA
20h 45m2 stops
 Logo
1:15 am - 6:35 pmSEA-PNH
27h 20m2 stops
$1,024
Find Deal
Mon, Jun 23 - Mon, Jul 14
 Logo
9:25 am - 4:10 pmPNH-SEA
20h 45m2 stops
 Logo
1:15 am - 6:35 pmSEA-PNH
27h 20m2 stops
$1,028
Find Deal
Thu, Jun 5 - Wed, Jun 11
Korean Air Logo
11:30 pm - 1:40 pmPNH-SEA
28h 10m1 stop
Korean Air Logo
12:55 pm - 10:10 pmSEA-PNH
19h 15m1 stop
$1,107Korean Air
Find Deal
Fri, Jun 27 - Sun, Jul 20
EVA Air Logo
12:35 pm - 7:30 pmPNH-SEA
20h 55m1 stop
EVA Air Logo
1:50 am - 11:15 amSEA-PNH
19h 25m1 stop
$1,188EVA Air
Find Deal
Thu, Jun 5 - Thu, Jun 12
EVA Air Logo
12:35 pm - 7:30 pmPNH-SEA
20h 55m1 stop
EVA Air Logo
1:50 am - 11:15 amSEA-PNH
19h 25m1 stop
$1,208EVA Air
Find Deal
Thu, Jun 5 - Wed, Jun 11
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KAYAK's insights & trends for Phnom Penh to Seattle flights

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

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

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

If your flying dates are flexible, you should consider flying to Seattle on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Phnom Penh to Seattle. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phnom Penh to Seattle, 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 Seattle is November, where tickets cost $964 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $1,422 and $1,350 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phnom Penh to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Phnom Penh to Seattle, you should book around 7 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonNovember
High seasonJune
Cheapest flight$460
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Phnom Penh to Seattle

When to book flights from Phnom Penh to Seattle

Are your dates flexible? Find out the best times to travel from Phnom Penh to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Phnom Penh to Seattle

  • What is the cheapest flight from Phnom Penh to Seattle?

    In the last 3 days, the lowest price for a flight from Phnom Penh to Seattle was $460 for a one-way ticket and $850 for a round-trip.

  • Do I need a passport to fly between Phnom Penh and Seattle?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Phnom Penh and on arrival in Seattle.

  • Which aircraft models fly most regularly from Phnom Penh to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phnom Penh to Seattle?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Phnom Penh and Seattle, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Phnom Penh to Seattle, EVA Air or Korean Air?

    The two airlines most popular with KAYAK users for flights from Phnom Penh to Seattle are EVA Air and Korean Air. With an average price for the route of $1,233 and an overall rating of 8.4, EVA Air is the most popular choice. Korean Air is also a great choice for the route, with an average price of $1,112 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from Phnom Penh to Seattle?

    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 Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Phnom Penh 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 Seattle?

    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 to Seattle with an airline and back to Phnom Penh with another airline. Booking your flights between Phnom Penh and SEA can sometimes prove cheaper using this method.

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

    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 to Seattle from Phnom Penh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 4 airlines serving from Phnom Penh to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Phnom Penh to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phnom Penh to Seattle? 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 1186 reviews
8.3Comfort
8.4Boarding
8.1Food
8.6Crew
8.0Entertainment
Airline reviews

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

8.0 ExcellentAnonymous, Mar 2025TPE - IAH
Read more EVA Air reviews

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.

Very smooth flight. Superb crew, great food and service. Slept most of the way. Excellent airline.

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?

I was sleep when they brought the food. They had put a note on my seat. There was no food when I asked for food later. There was just one main meal served in this 14 hours flight. They offered me sandwich with ham which I don’t eat since I am pescatarian. Long story short I had to wait to get to TPE to get something to eat. I am extremely disappointed from the service. I have been flying EVA since I was 1 year old. Perhaps no more EVA for me. Seems EVA glorious day is long gone

delayed and the cabin crew was like trainees.. a bit careless and not so pleasing to their job

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.

EVA air was nice. It was the first time I’ve flown with them. The poor entertainment choices for 2 long flights will make me think about choosing them next time. I didn’t know if would effect me so much but I couldn’t sleep and it added to the stress. The food was terrible for me but I couldn’t find how to inform them about my diet when I bought my ticket.

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 😆

Need to have space for Cary on when traveler boarding any zone

Most relaxing long distance flight I have been on. And I have flown on many.

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.

Not great, will likely try to fly another or maybe I should have upgraded my ticket? Needed Air…

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

Very routh cabin crew food is only 2 meals for 13 hours fry with them They should get better training how to service good super routh language and talking with customer

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!

When I booked a premium economy ticket. I then had to pay $100+ to book my seat.

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 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.

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

It was all perfect and very pleasant for such long flights

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 boarding process was good. The toilet could be better maintained.

This has been the worst experience I've ever had. We arrived to Ho Chi Minh Airport and were supposed to get our Asiana ticket from the transfer counter as we came with a different airline. However, the staff at the transfer counter were not helpful and kept giving us different information. We were first told by Asiana airlines staff we had to wait 2 hours so they could print out and give us our tickets, then someone else told us we had to wait 3hrs, someone told us "I don't know, just go sit and wait and we will tell you later." This was at a place in the Ho Chi Minh airport that had no coffee or food shops, nothing, just immigration (to enter Vietnam with a Vietnam Visa) and security (to transfer into the gates) but we needed our printed boarding pass to go through. It wasn't until we demanded to speak to a supervisor as our flight time was 1hr away because they kept telling us "there's alot of time left for your international flight, we will get your tickets later" we still had to wait around 20minutes for the "Supervisor" to give us our tickets. I would NOT recommend Asiana Airlines, especially if going thru Ho Chi Minh Airport as they are not helpful. (We almost missed our flight, due to their lazyness and incompetence of printing our tickets) I would suggest Asiana Airlines to have a Machine in the transfer area so passengers can easily print out their boarding passes themselves and save some money by not hiring incompetent staff that can't do a simple task such as printing a boarding pass.

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