$443 Cheap Flights from Guam (GUM) to Phnom Penh (PNH)

View $443 flight on Tue, Aug 26, 2025Opens in a new window

Popular airlines from Barrigada - A.B. Won Pat International Airport (GUM) to Phnom Penh Intl. Airport (PNH)

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Cheap Flights from Guam to Phnom Penh (GUM-PNH)

Prices were available within the past 7 days and start at $443 for one-way flights and $763 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Sat, Aug 30 - Fri, Sep 5
GUM
Guam
PNH
Phnom Penh
$763 Roundtrip, found 4 days ago
$763
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sat, Aug 30 from Guam to Phnom Penh, returning Fri, Sep 5, priced at $763 found 4 days ago
Philippine Airlines
Sun, Aug 31 - Fri, Sep 5
GUM
Guam
PNH
Phnom Penh
$840 Roundtrip, found 4 days ago
$840
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sun, Aug 31 from Guam to Phnom Penh, returning Fri, Sep 5, priced at $840 found 4 days ago
Philippine Airlines
Sun, Aug 31 - Sun, Sep 7
GUM
Guam
PNH
Phnom Penh
$846 Roundtrip, found 4 days ago
$846
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sun, Aug 31 from Guam to Phnom Penh, returning Sun, Sep 7, priced at $846 found 4 days ago
Philippine Airlines
Fri, Aug 29 - Fri, Sep 5
GUM
Guam
PNH
Phnom Penh
$1,014 Roundtrip, found 4 days ago
$1,014
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Fri, Aug 29 from Guam to Phnom Penh, returning Fri, Sep 5, priced at $1,014 found 4 days ago
Philippine Airlines
Sun, Aug 31 - Sun, Sep 7
GUM
Guam
PNH
Phnom Penh
$1,201 Roundtrip, found 4 days ago
$1,201
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sun, Aug 31 from Guam to Phnom Penh, returning Sun, Sep 7, priced at $1,201 found 4 days ago
Jeju Air
Sun, Aug 31 - Sun, Sep 7
GUM
Guam
PNH
Phnom Penh
$1,208 Roundtrip, found 4 days ago
$1,208
Roundtrip
found 4 days ago
Select Jeju Air flight, departing Sun, Aug 31 from Guam to Phnom Penh, returning Sun, Sep 7, priced at $1,208 found 4 days ago
Philippine Airlines
Sun, Aug 31 - Sun, Sep 7
GUM
Guam
PNH
Phnom Penh
$1,221 Roundtrip, found 4 days ago
$1,221
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sun, Aug 31 from Guam to Phnom Penh, returning Sun, Sep 7, priced at $1,221 found 4 days ago
Philippine Airlines
Sun, Aug 24 - Sun, Aug 31
GUM
Guam
PNH
Phnom Penh
$1,343 Roundtrip, found 5 days ago
$1,343
Roundtrip
found 5 days ago
Select Philippine Airlines flight, departing Sun, Aug 24 from Guam to Phnom Penh, returning Sun, Aug 31, priced at $1,343 found 5 days ago
Philippine Airlines
Sun, Aug 24 - Sun, Aug 31
GUM
Guam
PNH
Phnom Penh
$1,349 Roundtrip, found 5 days ago
$1,349
Roundtrip
found 5 days ago
Select Philippine Airlines flight, departing Sun, Aug 24 from Guam to Phnom Penh, returning Sun, Aug 31, priced at $1,349 found 5 days ago
Malaysia Airlines
Sun, Aug 24 - Sun, Aug 31
GUM
Guam
PNH
Phnom Penh
$1,864 Roundtrip, found 5 days ago
$1,864
Roundtrip
found 5 days ago
Select Malaysia Airlines flight, departing Sun, Aug 24 from Guam to Phnom Penh, returning Sun, Aug 31, priced at $1,864 found 5 days ago
Flights from Guam (GUM) to Phnom Penh (PNH)
Origin airport
A.B. Won Pat Intl.
Destination airport
Phnom Penh Intl.
Roundtrip price
$763
Distance
2695 mi

Guam to Phnom Penh Flights

The cheapest times to fly from Guam 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 Guam to Phnom Penh are during the month of August. You can find some of the cheapest flights from Guam to Phnom Penh with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Guam 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 Guam 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 Guam to Phnom Penh in 2025. You can also book with separate airlines for your outbound and return journeys, from $443 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 Guam 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 Guam 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 A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH) cost?
Secure a cheap one-way flight from $443 or cheap return flight from $763 from A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH)?
The cheapest month to fly from GUM to PNH is August, when demand is low. Off-peak season is often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH)?
To find the cheapest airline that'll fly you from GUM to PNH, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH)?
There are no daily nonstop flights from A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from GUM to PNH?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH)?
To touch down at Phnom Penh Intl. Airport (PNH) without delays, pick a flight that leaves from A.B. Won Pat Intl. Airport (GUM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH) last-minute?
Last-minute bookings from GUM to PNH are generally more expensive. To secure the best rates, start looking for flights early. That being said, if you're flexible with your travel plans, it's possible to score a cheap fare just before your departure.
Is it cheaper to book a GUM to PNH flight and hotel package?
Opting for a GUM to PNH flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our wide range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from A.B. Won Pat Intl. Airport (GUM) to Phnom Penh Intl. Airport (PNH)?
In most instances, you're able to cancel or reschedule your GUM to PNH flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further details, visit our Customer Service portal.

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*Available to One Key members.