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Phnom Penh

$526+ Cheap flights from Portland (PDX) to Phnom Penh (PNH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — PNH
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap 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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$991
(StudentUniverse)

One-way from

$526
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,075
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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From Portland to Phnom Penh Pochentong
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One-way flight from Portland to Phnom Penh Pochentong
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Highest demand for flights based on searches. 14% potential increase in price ($206 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Portland to Phnom Penh

Cheapest flights from Portland to Phnom Penh
Explore the most affordable flight options available from Portland to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This StudentUniverse deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/219:35 pmPDX - PNH
2 stops35h 40mMultiple Airlines
Mon 6/212:10 amPNH - PDX
2 stops30h 14mMultiple Airlines
Deal found 4/28$991
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/292:40 pmPDX - PNH
2 stops35h 25mChina Airlines
Mon 6/95:10 pmPNH - PDX
2 stops30h 18mChina Airlines
Deal found 4/28$1,060
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/116:11 amPDX - PNH
2 stops27h 04mChina Eastern
Sun 5/1812:10 amPNH - PDX
2 stops29h 58mChina Eastern
Deal found 4/29$1,061
This Korean Air deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/299:12 amPDX - PNH
2 stops22h 58mKorean Air
Mon 6/1611:30 pmPNH - PDX
2 stops31h 40mKorean Air
Deal found 4/28$1,145
This oojo deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/119:34 pmPDX - PNH
2 stops47h 41mEVA Air
Mon 5/1912:35 pmPNH - PDX
2 stops25h 24mEVA Air
Deal found 4/29$1,151
This Gurufare deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:30 amPDX - PNH
3 stops35h 10mSingapore Airlines
Tue 10/212:05 pmPNH - PDX
2 stops40h 23mSingapore Airlines
Deal found 4/29$1,253
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:24 pmPDX - PNH
3 stops36h 51mQatar Airways
Fri 10/35:40 pmPNH - PDX
3 stops44h 13mQatar Airways
Deal found 4/29$1,351
This oojo deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/227:21 amPDX - PNH
2 stops26h 54mPhilippine Airlines
Thu 10/21:15 amPNH - PDX
2 stops33h 15mPhilippine Airlines
Deal found 4/29$1,430
This FlightHub deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/157:35 pmPDX - PNH
2 stops37h 20mAsiana Airlines
Fri 7/2511:55 pmPNH - PDX
2 stops34h 42mAsiana Airlines
Deal found 4/27$1,565

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from Portland to Phnom Penh that are best for you.

Fly from

Portland

Fly to

Phnom Penh

Route

Depart

Return

Price

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Wed 5/21

9:35 pm-11:15 pm

2 stops35h 40m

Phnom Penh Pochentong

Mon 6/2

12:10 am-4:24 pm

2 stops30h 14m

$991

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Sun 5/11

6:11 am-11:15 pm

2 stops27h 04m

Phnom Penh Pochentong

Sun 5/18

12:10 am-4:08 pm

2 stops29h 58m

$1,061

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Sun 5/11

9:34 pm-11:15 am

2 stops47h 41m

Phnom Penh Pochentong

Mon 5/19

12:35 pm-11:59 pm

2 stops25h 24m

$1,151

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 10/14

7:30 am-8:40 am

3 stops35h 10m

Phnom Penh Pochentong

Tue 10/21

2:05 pm-4:28 pm

2 stops40h 23m

$1,253

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Mon 9/22

1:24 pm-4:15 pm

3 stops36h 51m

Phnom Penh Pochentong

Fri 10/3

5:40 pm-11:53 pm

3 stops44h 13m

$1,351

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 7/29

5:40 pm-4:05 pm

2 stops32h 25m

Phnom Penh Pochentong

Thu 8/14

5:10 pm-8:50 pm

2 stops41h 40m

$1,368

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Mon 9/22

7:21 am-12:15 am

2 stops26h 54m

Phnom Penh Pochentong

Thu 10/2

1:15 am-8:30 pm

2 stops33h 15m

$1,430

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Mon 7/14

6:15 am-10:10 pm

2 stops25h 55m

Phnom Penh Pochentong

Tue 7/22

11:30 pm-5:07 pm

2 stops31h 37m

$1,475

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 7/15

7:35 pm-10:55 pm

2 stops37h 20m

Phnom Penh Pochentong

Fri 7/25

11:55 pm-8:37 pm

2 stops34h 42m

$1,565

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Mon 8/4

1:19 pm-10:10 pm

2 stops42h 51m

$526

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Portland-Phnom Penh flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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, March is the cheapest month in which you can book a flight from Portland to Phnom Penh (average of $991). Flying from Portland to Phnom Penh in June is currently the most expensive (average of $1,582). 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.

What is the cheapest time of day to fly from PDX to PNH?

Find hourly flight availability from Portland to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

It’s typically best to fly out from Portland to Phnom Penh in the morning. Doing so could potentially save you 19% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 9.8 inches per month. October is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 in.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 77.0 F).

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 April 30, 2025.
EVA Air
8.4
Very good
1,186 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very good
1,066 reviews
EVA Air
8.4
Very good
1,186 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Airlines
8.3
Very good
729 reviews
EVA Air
8.4
Very good
1,186 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Asiana Airlines
8.2
Very good
442 reviews
EVA Air
8.4
Very good
1,186 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Singapore Airlines
8.1
Very good
1,292 reviews
EVA Air
8.4
Very good
1,186 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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 $1,061, China Eastern will fly you from Portland to Phnom Penh and back. In addition to China Eastern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from EVA Air and Singapore Airlines - these airlines can fly you to your destination from $1,151 and $1,253, respectively. China Eastern is 16% 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, March is the cheapest month in which you can book a flight from Portland to Phnom Penh (average of $991). Flying from Portland to Phnom Penh in June is currently the most expensive (average of $1,582). 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

Browse thousands of different options on Cheapflights for your next trip

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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 3 airlines flying from Portland to Phnom Penh

Discover the top 3 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,050Average$1,180FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,148Average$1,445FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$1,299Average$1,454FlexibilityNo cancel feeOn-time81%

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