Cheap Flights from Portland (PDX) to Phnom Penh (PNH)

Popular airlines from Portland International Airport (PDX) to Phnom Penh Intl. Airport (PNH)

Find the cheapest month to fly from Portland (PDX) to Phnom Penh (PNH)

August is typically the cheapest month to fly

From $949 - $1,299 per traveler.

Alternative airports near Phnom Penh

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Techo Intl. Airport KTI. Cheapest option available. Flights from $1,254
KTI
Techo Intl. Airport
Cheapest
Flights from $1,254
Flights from Portland (PDX) to Phnom Penh (PNH)
Origin airport
Portland Intl.
Destination airport
Phnom Penh Intl.
Distance
7510 mi

Portland to Phnom Penh Flights

The cheapest times to fly from Portland to Phnom Penh

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Phnom Penh are during the month of . You can find some of the cheapest flights from Portland to Phnom Penh with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Phnom Penh

Sunday is one of the best days to book for cheap flights from Portland to Phnom Penh: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Phnom Penh

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Phnom Penh in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Phnom Penh flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Phnom Penh airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH) cost?
Get a cheap one-way flight or cheap return flight from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH)?
Flying in is a great way to save, as it's the cheapest month for flights between PDX and PNH. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH)?
To find the cheapest airline flying from PDX to PNH, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH)?
Nonstop flights from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PDX to PNH?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH)?
To touch down at Phnom Penh Intl. Airport (PNH) without delays, select a flight that leaves from Portland Intl. Airport (PDX) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH) last-minute?
Last-minute fares from PDX to PNH are generally more expensive. To secure the cheapest rates, start searching for flights as soon as possible. That being said, if you're flexible with your travel plans, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a PDX to PNH flight and hotel package?
Booking a PDX to PNH flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Phnom Penh Intl. Airport (PNH)?
Typically, it's possible to cancel or reschedule your PDX to PNH flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.