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Siem Reap

Cheap flights from Portland (PDX) to Siem Reap

PDX — SAI
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheap flight deals from Portland to Siem Reap

Keep the following information in mind while searching for Portland to Siem Reap flight deals. Data was last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

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

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

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

Find hourly flight availability from Portland 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 16, 2025.

One of the essential ways to save on airfare from Portland to Region of Siem Reap is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 8% on airfare.

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 16, 2025.
Peruse reviews from past customers who have flown with Singapore Airlines from Portland to Siem Reap to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,382 reviews

Comfort

8.0

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Food

7.7

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
1,382 reviews
Singapore Airlines
8.1
Very good
1,382 reviews

Comfort

8.0

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Food

7.7

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 Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Siem Reap?

    For a flight from Portland to Siem Reap, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city.

  • Can I find deals for flights from Portland to Siem Reap that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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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Alternative routes for Portland to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Portland to Siem Reap

Discover the top airline that operate flights from Portland 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,091Average$1,240FlexibilityNo cancel feeOn-time81%

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