$2,080 Cheap Flights from Phoenix (PHX) to Sihanoukville (KOS)

View $2,080 flight on Sat, Oct 18, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Sihanoukville (KOS)

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Cheap Flights from Phoenix to Sihanoukville (PHX-KOS)

Prices were available within the past 7 days and start at $2,080 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS) cost?
Grab a cheap one-way flight from $2,080 or cheap return flight from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS)?
The cheapest month to fly from PHX to KOS is , when demand is low. Off-peak months are generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PHX to KOS flight.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS)?
You'll need to book a flight with a layover if you're traveling from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from PHX to KOS?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS)?
Select a flight from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**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 Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS) last-minute?
Holding off until just before your departure to book a flight from PHX to KOS often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Allow some flexibility in your schedule to maximize your chances of scoring a bargain.
Is it cheaper to book a PHX to KOS flight and hotel package?
You'll generally save money by booking a PHX to KOS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your ideal flights and accommodations, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Sihanoukville Airport (KOS)?
If you booked your PHX to KOS flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Sihanoukville
Distance
8596 mi

Book with confidence

Book with confidence

Phoenix to Sihanoukville Flights

The cheapest times to fly from Phoenix to Sihanoukville

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 Phoenix to Sihanoukville are during the month of . You can find some of the cheapest flights from Phoenix to Sihanoukville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Sihanoukville

Sunday is one of the best days to book for cheap flights from Phoenix to Sihanoukville: 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 Phoenix to Sihanoukville

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 Phoenix to Sihanoukville in 2025. You can also book with separate airlines for your outbound and return journeys, from $2,080 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 Phoenix to Sihanoukville 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 Phoenix to Sihanoukville 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.

 

Phoenix to Sihanoukville Flights

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*Available to One Key members.