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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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — PNH
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$947
(Ovago)

One-way from

$526
(Ovago)

Popular in

June

Cheapest in

August

Average price

$1,584
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. 17% potential increase in price ($261 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Ovago deal was found by Cheapflights users on 6/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:36 pmPDX - PNH
2 stops29h 19mMultiple Airlines
Wed 10/12:10 pmPNH - PDX
2 stops33h 37mMultiple Airlines
Deal found 6/11$947
This oojo deal was found by Cheapflights users on 6/12. 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 11/35:40 pmPDX - PNH
2 stops25h 55mChina Airlines
Thu 11/205:20 pmPNH - PDX
2 stops31h 27mChina Airlines
Deal found 6/12$975
This oojo deal was found by Cheapflights users on 6/10. 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.
Thu 11/276:55 pmPDX - PNH
2 stops37h 00mAsiana Airlines
Thu 12/2511:55 pmPNH - PDX
2 stops31h 33mAsiana Airlines
Deal found 6/10$1,006
This oojo deal was found by Cheapflights users on 6/11. 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.
Wed 9/171:24 pmPDX - PNH
2 stops44h 51mPhilippine Airlines
Tue 9/301:15 amPNH - PDX
2 stops45h 43mPhilippine Airlines
Deal found 6/11$1,049
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Wed 7/911:15 amPDX - PNH
2 stops20h 55mKorean Air
Sun 7/2011:30 pmPNH - PDX
2 stops29h 23mKorean Air
Deal found 6/11$1,297
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Wed 9/171:24 pmPDX - PNH
3 stops36h 51mQatar Airways
Wed 10/15:40 pmPNH - PDX
3 stops44h 19mQatar Airways
Deal found 6/11$1,324
This FlightHub deal was found by Cheapflights users on 6/12. 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 11/36:00 amPDX - PNH
2 stops26h 15mChina Eastern
Wed 11/1912:15 amPNH - PDX
2 stops30h 57mChina Eastern
Deal found 6/12$1,342
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Wed 7/237:00 amPDX - PNH
3 stops40h 10mSingapore Airlines
Tue 2/107:45 pmPNH - PDX
2 stops32h 34mSingapore Airlines
Deal found 6/11$1,383
This Ovago deal was found by Cheapflights users on 6/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/226:00 amPDX - PNH
2 stops26h 10mAir China
Fri 11/2812:25 amPNH - PDX
2 stops33h 11mAir China
Deal found 6/12$1,535
This oojo deal was found by Cheapflights users on 6/12. 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 6/242:30 pmPDX - PNH
2 stops30h 45mEVA Air
Wed 7/212:35 pmPNH - PDX
2 stops40h 06mEVA Air
Deal found 6/12$1,540
This AranGrant deal was found by Cheapflights users on 6/11. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/165:40 pmPDX - PNH
2 stops33h 40mCathay Pacific
Thu 7/3111:25 amPNH - PDX
2 stops26h 49mCathay Pacific
Deal found 6/11$20,747

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 June 12, 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 9/17

5:36 pm-12:55 pm

2 stops29h 19m

Phnom Penh Pochentong

Wed 10/1

2:10 pm-9:47 am

2 stops33h 37m

$947

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Mon 11/3

5:40 pm-10:35 am

2 stops25h 55m

Phnom Penh Pochentong

Thu 11/20

5:20 pm-9:47 am

2 stops31h 27m

$975

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Thu 11/27

6:55 pm-10:55 pm

2 stops37h 00m

Phnom Penh Pochentong

Thu 12/25

11:55 pm-4:28 pm

2 stops31h 33m

$1,006

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Wed 9/17

1:24 pm-12:15 am

2 stops44h 51m

Phnom Penh Pochentong

Tue 9/30

1:15 am-8:58 am

2 stops45h 43m

$1,049

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Wed 7/9

11:15 am-10:10 pm

2 stops20h 55m

Phnom Penh Pochentong

Sun 7/20

11:30 pm-2:53 pm

2 stops29h 23m

$1,297

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Wed 9/17

1:24 pm-4:15 pm

3 stops36h 51m

Phnom Penh Pochentong

Wed 10/1

5:40 pm-11:59 pm

3 stops44h 19m

$1,324

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Mon 11/3

6:00 am-11:15 pm

2 stops26h 15m

Phnom Penh Pochentong

Wed 11/19

12:15 am-4:12 pm

2 stops30h 57m

$1,342

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Wed 7/23

7:00 am-1:10 pm

3 stops40h 10m

Phnom Penh Pochentong

Tue 2/10

7:45 pm-1:19 pm

2 stops32h 34m

$1,383

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Sat 11/22

6:00 am-11:10 pm

2 stops26h 10m

Phnom Penh Pochentong

Fri 11/28

12:25 am-6:36 pm

2 stops33h 11m

$1,535

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 6/24

2:30 pm-11:15 am

2 stops30h 45m

Phnom Penh Pochentong

Wed 7/2

12:35 pm-2:41 pm

2 stops40h 06m

$1,540

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 results
1
2

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 $1,570). 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 June 12, 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 June 12, 2025.
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

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
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

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
1,088 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

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
738 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

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
440 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

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
1,302 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

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 $975, China Airlines will fly you from Portland to Phnom Penh and back. In addition to China Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Asiana Airlines and Philippine Airlines - these airlines can fly you to your destination from $1,006 and $1,049, respectively. China Airlines is 20% 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 $1,570). 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 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$863Average$1,049FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$934Average$1,174FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$952Average$1,409FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,167Average$1,396FlexibilityNo cancel feeOn-time74%

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