PDX - PNH

$1,988 Find Cheap Flights from Portland to Phnom Penh

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Phnom Penh departing on 10/13. 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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Flight Deals

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, Oct 13 - Sat, Nov 15
Multiple Airlines Logo
11:58 pm - 6:55 amPDX-PNH
40h 57m2 stops
Multiple Airlines Logo
7:50 pm - 12:36 pmPNH-PDX
31h 46m2 stops
$1,988Multiple Airlines
Find Deal
Mon, Oct 13 - Sat, Nov 15
Multiple Airlines Logo
11:58 pm - 6:55 amPDX-PNH
40h 57m2 stops
Multiple Airlines Logo
7:50 pm - 12:36 pmPNH-PDX
31h 46m2 stops
$2,201Multiple Airlines
Find Deal

Everything you should know

When to travel
August
Cheapest • 15% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$1,988
Overall average: $1,148
Multiple Airlines
Mon 10/13Sat 11/15
PDX - PNH • 2 stops
Cheapest one-way
Multiple Airlines
Tue 9/16
PDX - PNH • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Phnom Penh!
Booking Insights

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 $1,070 (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 seasonFebruary
Cheapest flight$1,988
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 13% 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 $1,988 for a round-trip ticket.

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

    Yes

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

    We unfortunately don’t have that data for this specific 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 $1,371 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 $1,384 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 1236 reviews
8.1Food
8.3Comfort
8.0Entertainment
8.4Boarding
8.6Crew
Airline reviews

Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean

10.0 ExcellentDale, Aug 2025SFO - TPE
Read more EVA Air reviews

Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean

EVA! What is going on with your food!?!? Pre pandemic I used to go to Taiwan at least twice a year and always flew EVA — the food was consistently tasty for airplane food. Post pandemic, it’s not great at all. Step it up!

Flight Attendants could have been nicer and food portions could be bigger.

Great experience, comfort and food is delicious. Always great service and one time

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.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

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

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.

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

Better organization of boarding procedures. Terrible leadership guiding people to gates.

I did not like how the plane landed. It was not smooth.

China Airlines crews are very excellent doing their job. Very friendly and hardworking. I will always choose China Airlines over and over. Thank you all for making my flight comfortable. God bless to all the staff. :)

Staff was so nice and very helpful with directions aswell!

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…

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

Better screens, it would have been nice to have more comfortable seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

Love flying Asiana. Been using it for over a decade now.

Coming back to America was a peaceful flight everyone and everything was perfect

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.

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

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

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