PDX - PNH

$540 Find Cheap Flights from Portland to Phnom Penh

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Phnom Penh departing on 7/29. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Phnom Penh

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Phnom Penh, 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 Portland to Phnom Penh, as well as popular online travel agencies
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Cheap Flights from Portland to Phnom Penh (PDX-PNH)

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

Mon, Nov 10 - Sat, Dec 13
Asiana Airlines Logo
5:55 pm - 10:55 pmPDX-PNH
38h 00m2 stops
Asiana Airlines Logo
11:55 pm - 11:24 pmPNH-PDX
38h 29m2 stops
$1,006Asiana Airlines
Find Deal
Mon, Nov 10 - Fri, Dec 12
 Logo
7:00 am - 11:15 pmPDX-PNH
25h 15m2 stops
 Logo
12:15 am - 4:28 pmPNH-PDX
31h 13m2 stops
$1,047
Find Deal
Wed, Jul 16 - Tue, Jul 22
China Eastern Logo
6:15 am - 11:15 pmPDX-PNH
27h 00m2 stops
China Eastern Logo
12:10 am - 3:56 pmPNH-PDX
29h 46m2 stops
$1,061China Eastern
Find Deal
Mon, Nov 10 - Sat, Dec 13
Singapore Airlines Logo
7:21 am - 8:35 amPDX-PNH
34h 14m3 stops
Singapore Airlines Logo
7:45 pm - 1:19 pmPNH-PDX
32h 34m2 stops
$1,139Singapore Airlines
Find Deal
Thu, Jul 31 - Thu, Aug 7
EVA Air Logo
2:50 pm - 11:15 amPDX-PNH
30h 25m2 stops
EVA Air Logo
12:35 pm - 11:31 amPNH-PDX
36h 56m2 stops
$1,289EVA Air
Find Deal
Wed, Jul 9 - Sun, Jul 20
Korean Air Logo
6:15 am - 10:10 pmPDX-PNH
49h 55m2 stops
Korean Air Logo
11:30 pm - 10:28 pmPNH-PDX
36h 58m2 stops
$1,297Korean Air
Find Deal
Sat, Nov 22 - Sat, Nov 29
Korean Air Logo
5:10 pm - 10:25 pmPDX-PNH
38h 15m2 stops
Korean Air Logo
11:45 pm - 4:31 pmPNH-PDX
31h 46m2 stops
$1,373Korean Air
Find Deal
Tue, Dec 9 - Fri, Jan 16
Singapore Airlines Logo
9:50 pm - 1:50 pmPDX-PNH
49h 00m2 stops
Singapore Airlines Logo
7:45 pm - 1:19 pmPNH-PDX
32h 34m2 stops
$1,409Singapore Airlines
Find Deal
Sat, Jun 28 - Sun, Jul 20
China Eastern Logo
6:15 am - 11:15 pmPDX-PNH
27h 00m2 stops
China Eastern Logo
12:40 pm - 3:56 pmPNH-PDX
41h 16m3 stops
$1,443China Eastern
Find Deal
Fri, Jun 27 - Sun, Jul 20
EVA Air Logo
7:00 am - 11:15 amPDX-PNH
38h 15m2 stops
EVA Air Logo
12:35 pm - 10:33 pmPNH-PDX
47h 58m2 stops
$1,549EVA Air
Find Deal
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KAYAK's insights & trends for Portland to Phnom Penh flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Phnom Penh, 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 Portland to Phnom Penh is August, where tickets cost $952 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,584 and $1,499 respectively.

Good to know

Low seasonMarch
High seasonApril
Cheapest flight$540
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Portland to Phnom Penh

When to book flights from Portland to Phnom Penh

Are your dates flexible? Find out the best times to travel from Portland to Phnom Penh 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 Portland to Phnom Penh

  • What airlines operate flights from Portland to Phnom Penh?

    Several airlines offer flights from Portland to Phnom Penh, including major carriers and international airlines. Some common options may include airlines such as Delta Air Lines, United Airlines, Cathay Pacific, Korean Air, and China Eastern Airlines. These airlines often provide connecting flights with layovers in their respective hubs before reaching Phnom Penh.

  • What airports will I transit through on my journey from Portland to Phnom Penh?

    When flying from Portland to Phnom Penh, you will likely transit through one or more major international airports. The specific airports can vary depending on the airline and the chosen route. Some common transit airports include Tokyo Narita International Airport, Seoul Incheon International Airport, Hong Kong International Airport, or Shanghai Pudong International Airport.

  • Can I change my seat when flying China Eastern Airlines from Portland to Phnom Penh?

    Yes, it is possible to change your seat when flying with China Eastern Airlines from Portland to Phnom Penh. However, seat changes are subject to availability. It is recommended to contact China Eastern Airlines directly or visit their website to inquire about seat change options. They will provide you with the necessary information and assist you in making any desired seat changes for your flight.

  • What travel documents are required for a flight from Portland to Phnom Penh?

    To travel from Portland to Phnom Penh, passengers need a valid passport with at least six months of remaining validity from the date of entry into Cambodia. Additionally, most travelers will require a visa to enter Cambodia. It is recommended to check with the Royal Embassy of Cambodia or the nearest Cambodian consulate or embassy for the most accurate and up-to-date information regarding visa requirements.

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

    In the last 3 days, the lowest price for a flight from Portland to Phnom Penh was $540 for a one-way ticket and $1,006 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Portland to Phnom Penh?

    When flying out of Portland you will be using Portland. You will be landing at Phnom Penh, also known as Phnom Penh Pochentong.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Portland to Phnom Penh are EVA Air and Korean Air. With an average price for the route of $1,396 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 $1,409 and an overall rating of 8.4.

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

    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 Portland to Phnom Penh.

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

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

    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 Phnom Penh with an airline and back to Portland with another airline. Booking your flights between Portland and PNH 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 Portland to Phnom Penh?

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

KAYAK’s top tips for finding a cheap flight from Portland to Phnom Penh

  • Travelers with disabilities should familiarize themselves with the disability policies and services provided by the airlines and airports involved in their journey. Cathay Pacific offers assistance such as wheelchair services, priority boarding, and special seating arrangements. Contacting the airline in advance and informing them of any specific needs can help ensure a smooth travel experience.
  • China Eastern Airlines from Portland to Phnom Penh can pre-select their seats. The airline provides a seat selection service, allowing passengers to choose their preferred seats in advance. This option ensures that passengers can secure their desired seating arrangements, enhancing their comfort and convenience during the flight. Passengers are advised to check the airline's website or contact their customer service for more information and assistance with seat selection.
  • Before traveling from Portland to Phnom Penh, you should familiarize themselves with the customs and immigration procedures at both Portland International Airport (PDX) and Phnom Penh International Airport (PNH). Understanding the necessary documentation, such as completed customs declaration forms, and any specific entry requirements can facilitate a smoother immigration process.
  • China Eastern Airlines offers a variety of in-flight entertainment options for passengers flying from Portland to Phnom Penh. Passengers can enjoy a wide selection of movies, TV shows, music, and games during their journey. The airline provides individual seatback screens, ensuring a personalized entertainment experience for each passenger.
  • China Eastern Airlines also offers a variety of special meals for flights from Portland to Phnom Penh. Passengers can choose from options such as vegetarian meals, vegan meals, gluten-free meals, low-sodium meals, and diabetic meals. These special meals cater to specific dietary requirements and are available upon request.

Reviews of the top 4 airlines serving from Portland to Phnom Penh

 
See real verified KAYAK customer reviews for airlines flying from Portland to Phnom Penh. 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 Portland to Phnom Penh? 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 1204 reviews
8.6Crew
8.4Boarding
8.0Entertainment
8.1Food
8.3Comfort
Airline reviews

The food from Los Angeles to Taipei made me throw up. The flight is also not comfort. But the staffs are very friendly and nice.

8.0 ExcellentAnonymous, Jun 2025LAX - TPE
Read more EVA Air reviews

The food from Los Angeles to Taipei made me throw up. The flight is also not comfort. But the staffs are very friendly and nice.

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.

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

I appreciate the email reminders for online check-in which made my entry to the lines less stressful. The flight was on schedule and on time. The baording staff were proactively helpful and approachable. The airplane inflight food, entertainment and comfies as well as provisions are excellent even in the economy seating. The airline transfer was smooth and easy! Luggage safe and intact! Thank you EVA airline for making my trip a reliable safe and comfortable experience.

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

The food is quite mediocre. I had spaghetti and the tomato based sauce was quite salty and there were no other flavors, no spices used in the sauce.

The app was awful. No accurate info. Paying for internet is a negative (Delta is free). The crew was very nice for the most part although you are not guaranteed to get good service. Some crew would ignore requests for things as simple as a cup of water if you were sleeping when the first serving was made. Food was great. Male crew member was exceptionally kind and responsive.

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 was a good flight. I would highly recommend it to family and friends.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

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

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

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.

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

long flights are difficult but the crew and amenities made it a very good experience

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

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.

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. 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.

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.

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

Food could have been better. Too many passengers getting up and down all the time.

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

The food options and quality could use some more excitement and variety.

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

Everything you need to know for your flight from Portland to Phnom Penh

Information on your arrival and departure airports

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