Siem Reap

Cheap flights from Oregon to Siem Reap

PDX — SAI
Nov 27 — Dec 41
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Cheap flight deals from Oregon to Siem Reap

Keep the following information in mind while searching for Oregon to Siem Reap flight deals. Data was last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars
Provider with most accurate pricing for Portland-Siem Reap–Angkor Intl flight deals.
Provider most trusted by Cheapflights users for Portland-Siem Reap–Angkor Intl flights.

Cheapflights Insights

Everything you need to know about your flight from Oregon to Siem Reap

What is the cheapest time of day to fly from OR to SI?

Find hourly flight availability from Oregon to Siem Reap. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s typically best to fly out from Oregon to Region of Siem Reap in the evening. Doing so could potentially save you 13% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. 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 Siem Reap. Reviews last updated October 28, 2025.
See what other customers who have flown with Singapore Airlines from Oregon to Siem Reap have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.1

Comfort

8.0

Entertainment

8.0

Food

7.7

Boarding

8.3

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

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

Overall

8.1

Comfort

8.0

Entertainment

8.0

Food

7.7

Boarding

8.3

Crew

8.6

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 Oregon to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find deals for flights from Oregon to Siem Reap that include hotel bookings?

    Yes. In addition to deals on Oregon to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oregon to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Siem Reap.

  • Can I find deals for business class flights from Oregon to Siem Reap?

    Yes. Cheapflights offers flight deals from Oregon to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Oregon to Siem Reap

Discover the top airline that operate flights from Oregon to Siem Reap. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,091Average$1,240FlexibilityNo cancel feeOn-time81%

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