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Phnom Penh

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

PDX — PNH
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find flight deals from Portland to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

June

Cheapest in

April

Average price

$1,211
Provider with most accurate pricing for Portland-Phnom Penh Pochentong flight deals.
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Provider most trusted by Cheapflights users for Portland-Phnom Penh Pochentong flights.
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Highest demand for flights based on searches. 16% potential increase in price ($243 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Compare providers for flights from Portland to Phnom Penh

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Phnom Penh in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Phnom Penh flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Phnom Penh flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland-Phnom Penh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Phnom Penh flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Phnom Penh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Portland to Phnom Penh?

Currently, August is the cheapest month in which you can book a flight from Portland to Phnom Penh (average of $890). Flying from Portland to Phnom Penh in February is currently the most expensive (average of $1,304). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated December 12, 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air, and China Airlines from Portland to Phnom Penh to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
EVA Air
8.5
Very good
1,296 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Korean Air
8.4
Very good
1,184 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
China Airlines
8.2
Very good
788 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.
Asiana Airlines
8.2
Very good
492 reviews
EVA Air
8.5
Very good
1,296 reviews

Boarding

8.4

Entertainment

8.0

Comfort

8.3

Crew

8.6

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Walter,Nov 2025

LAX - TPE

Everything went well. The crew was very friendly and efficient and they made a long flight enjoyable.

Related info for your journey

Find useful and relevant information for your journey from Portland to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Portland to Phnom Penh round-trip?

    Currently priced at $863, Asiana Airlines will fly you from Portland to Phnom Penh and back. In addition to Asiana Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Korean Air and China Airlines - these airlines can fly you to your destination from $952 and $1,036, respectively. Asiana Airlines is 30% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Portland to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Portland to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Phnom Penh.

  • Can I find deals for business class flights from Portland to Phnom Penh?

    Yes. Cheapflights offers flight deals from Portland to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Portland to Phnom Penh (average of $890). Flying from Portland to Phnom Penh in February is currently the most expensive (average of $1,304). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Portland to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Phnom Penh flights

Top 4 airlines flying from Portland to Phnom Penh

Discover the top 4 airlines that operate flights from Portland to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$863Average$1,049FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$952Average$1,454FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$1,036Average$1,096FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$1,141Average$1,371FlexibilityNo cancel feeOn-time74%

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