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Phnom Penh

$532+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — PNH
Mar 26 — Apr 21
Wed 3/26
Wed 4/2
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 March 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,082
(China Airlines)

One-way from

$532
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,182
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. 13% potential increase in price ($207 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 21, 2025.

This China Airlines deal was found by Cheapflights users on 3/21. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/55:50 pmPDX - PNH
2 stops26h 00mMultiple Airlines
Mon 5/125:10 pmPNH - PDX
2 stops30h 21mMultiple Airlines
Deal found 3/21$1,082
This oojo deal was found by Cheapflights users on 3/21. 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 5/185:06 pmPDX - PNH
2 stops41h 09mPhilippine Airlines
Sat 6/71:15 amPNH - PDX
2 stops46h 30mPhilippine Airlines
Deal found 3/21$1,293
This KAYAK deal was found by Cheapflights users on 3/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/87:00 amPDX - PNH
3 stops35h 40mSingapore Airlines
Thu 5/86:55 pmPNH - PDX
2 stops52h 53mSingapore Airlines
Deal found 3/20$1,396
This KAYAK deal was found by Cheapflights users on 3/20. 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 KAYAK 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 3/20$1,525
This Qatar Airways deal was found by Cheapflights users on 3/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/96:00 amPDX - PNH
3 stops44h 15mQatar Airways
Sat 5/175:40 pmPNH - PDX
3 stops51h 38mQatar Airways
Deal found 3/20$1,562
This AranGrant deal was found by Cheapflights users on 3/19. 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.
Sun 6/158:12 pmPDX - PNH
2 stops24h 03mCathay Pacific
Sun 7/136:30 pmPNH - PDX
2 stops43h 29mCathay Pacific
Deal found 3/19$20,699
This KAYAK deal was found by Cheapflights users on 3/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2410:05 amPDX - PNH
3 stops42h 20mEmirates
Wed 3/269:30 pmPNH - PDX
3 stops35h 05mEmirates
Deal found 3/20$22,921

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 March 21, 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

Mon 5/5

5:50 pm-9:50 am

2 stops26h 00m

Phnom Penh Pochentong

Mon 5/12

5:10 pm-9:31 am

2 stops30h 21m

$1,082

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Sun 5/18

5:06 pm-12:15 am

2 stops41h 09m

Phnom Penh Pochentong

Sat 6/7

1:15 am-9:45 am

2 stops46h 30m

$1,293

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 4/8

7:00 am-8:40 am

3 stops35h 40m

Phnom Penh Pochentong

Thu 5/8

6:55 pm-9:48 am

2 stops52h 53m

$1,396

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

$1,525

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Wed 4/9

6:00 am-4:15 pm

3 stops44h 15m

Phnom Penh Pochentong

Sat 5/17

5:40 pm-7:18 am

3 stops51h 38m

$1,562

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Sun 6/15

8:12 pm-10:15 am

2 stops24h 03m

Phnom Penh Pochentong

Sun 7/13

6:30 pm-11:59 pm

2 stops43h 29m

$20,699

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 5/6

2:33 pm-10:15 am

3 stops53h 42m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Phnom Penh flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, February is the cheapest month in which you can book a flight from Portland to Phnom Penh (average of $1,002). 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 March 21, 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 March 21, 2025.
Singapore Airlines
8.1
Very good
1,282 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.7

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Singapore Airlines
8.1
Very good
1,282 reviews
Singapore Airlines
8.1
Very good
1,282 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.7

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Cathay Pacific
7.5
Good
832 reviews
Singapore Airlines
8.1
Very good
1,282 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.7

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Qatar Airways
7.4
Good
3,539 reviews
Singapore Airlines
8.1
Very good
1,282 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.7

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Philippine Airlines
7.2
Good
840 reviews
Singapore Airlines
8.1
Very good
1,282 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.7

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
China Eastern
7.1
Good
132 reviews
Singapore Airlines
8.1
Very good
1,282 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.7

Overall

8.1

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.

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 $1,293, Philippine Airlines will fly you from Portland to Phnom Penh and back. In addition to Philippine Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Singapore Airlines and China Eastern - these airlines can fly you to your destination from $1,396 and $1,525, respectively.

  • 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, February is the cheapest month in which you can book a flight from Portland to Phnom Penh (average of $1,002). 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 2 airlines flying from Portland to Phnom Penh

Discover the top 2 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 March 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,050Average$1,180FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$1,075Average$1,355FlexibilityNo cancel feeOn-time81%
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