Cheap Flights from Portland (PDX) to Sihanoukville (KOS)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save on select hotels after you book a flight*
    trophy illustration

    Find the right fit

    We search billions of combinations of flights to help you find your next adventure

Frequently asked questions

Is it cheaper to buy a plane ticket from PDX to KOS last minute?
When it comes to booking your flights, it pays to be prepared. While you may be able to find a deal on a Portland Airport to KOS flight at the last minute, fares usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international travel it's three to four months.
What airports do you fly into for Sihanoukville from Portland?
Portland to Sihanoukville flights touch down at Sihanoukville Airport (KOS). Drop your suitcase off at your hotel and then explore some of the city's popular attractions, such as Golden Lions Roundabout and Phsar Leu Market. The airport is approximately 14 kilometers east of central Sihanoukville.
Can I change the date of my flight from Portland Airport to KOS?
Expedia makes it easy to make amendments to your Portland Airport to Sihanoukville Airport (KOS) trip yourself. Simply log in to the Expedia Trips portal and tap "change flight." Browse around for new flights and secure the one that fits your new plans. You'll see an estimate of your flight change cost, if applicable. Alternatively, use our Customer Service portal to chat to our Virtual Agent and quickly get answers to your questions.

Travel information

Travel information

Origin airport
Portland Intl.
Destination airport
Sihanoukville
Distance
12177 km

Book with confidence

Book with confidence