When did momondo last update prices for flights from Oregon to Siem Reap?

Prices for flights from Oregon to Siem Reap refresh daily.

How old do you have to be to fly from Oregon to Siem Reap?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Oregon to Siem Reap.

What documentation or ID do you need to fly to Siem Reap?

The necessary travel and health documents for your Siem Reap trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$607 Cheap Flights from Oregon to Siem Reap in 2026

Find the cheapest flights from Oregon to Siem Reap

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:32 pm - 6:20 pm

PDX

SAI

30h 48m

3 stops

1:20 pm - 10:44 pm

SAI

PDX

24h 24m

3 stops

$1,452Multiple Airlines

Fri, Sep 11 - Mon, Dec 7

9:32 pm - 6:20 pm

PDX

SAI

30h 48m

3 stops

9:55 am - 8:31 pm

SAI

PDX

25h 36m

3 stops

$1,476Multiple Airlines

Fri, Sep 11 - Mon, Dec 7

9:32 pm - 6:20 pm

PDX

SAI

30h 48m

3 stops

9:55 am - 8:31 pm

SAI

PDX

25h 36m

3 stops

$1,496Multiple Airlines

Fri, Sep 11 - Mon, Dec 7

9:50 pm - 9:15 am

PDX

SAI

44h 25m

3 stops

1:20 pm - 10:33 pm

SAI

PDX

24h 13m

3 stops

$1,520Multiple Airlines

Fri, Nov 20 - Mon, Dec 7

9:50 pm - 8:30 pm

PDX

SAI

55h 40m

2 stops

6:50 pm - 11:25 am

SAI

PDX

31h 35m

3 stops

$1,532Multiple Airlines

Fri, Nov 20 - Mon, Dec 7

5:36 pm - 1:15 pm

PDX

SAI

29h 39m

3 stops

12:55 pm - 11:35 pm

SAI

PDX

24h 40m

3 stops

$1,641Multiple Airlines

Tue, Jul 14 - Tue, Jul 28

9:50 pm - 8:30 pm

PDX

SAI

55h 40m

2 stops

7:25 pm - 6:31 pm

SAI

PDX

38h 06m

2 stops

$1,675Multiple Airlines

Fri, Nov 20 - Mon, Dec 7

5:36 pm - 1:15 pm

PDX

SAI

29h 39m

3 stops

12:55 pm - 11:35 pm

SAI

PDX

24h 40m

3 stops

$1,676Multiple Airlines

Tue, Jul 14 - Tue, Jul 28

10:45 am - 9:30 pm

PDX

SAI

44h 45m

3 stops

11:50 pm - 7:54 pm

SAI

PDX

34h 04m

3 stops

$1,837Multiple Airlines

Tue, Jul 14 - Tue, Jul 28

5:36 pm - 1:15 pm

PDX

SAI

29h 39m

3 stops

12:55 pm - 11:35 pm

SAI

PDX

24h 40m

3 stops

$1,906Multiple Airlines

Tue, Jul 14 - Tue, Jul 28

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Singapore Airlines flights from Oregon to Region of Siem Reap

Our best Singapore Airlines deals on Oregon to Region of Siem Reap flight tickets

Singapore Airlines

Jul 14

PDX7:00 amPortland

36h 40m

3 stops

SAI9:40 amSiem Reap–Angkor Intl

Jul 28

SAI10:30 amSiem Reap–Angkor Intl

36h 51m

2 stops

PDX9:21 amPortland

$2,645

Singapore Airlines

Jul 14

PDX7:00 amPortland

36h 40m

3 stops

SAI9:40 amSiem Reap–Angkor Intl

Jul 28

SAI10:30 amSiem Reap–Angkor Intl

36h 51m

2 stops

PDX9:21 amPortland

$2,646

Singapore Airlines

Jul 14

PDX7:19 amPortland

36h 21m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Jul 28

SAI10:30 amSiem Reap–Angkor Intl

48h 03m

3 stops

PDX8:33 pmPortland

$2,707

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Fri 9/11

9:32 pm-6:20 pm

3 stops30h 48m

Siem Reap–Angkor Intl

Mon 12/7

1:20 pm-10:44 pm

3 stops24h 24m

$1,452

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Fri 9/11

9:32 pm-6:20 pm

3 stops30h 48m

Siem Reap–Angkor Intl

Mon 12/7

9:55 am-8:31 pm

3 stops25h 36m

$1,476

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Fri 9/11

9:32 pm-6:20 pm

3 stops30h 48m

Siem Reap–Angkor Intl

Mon 12/7

9:55 am-8:31 pm

3 stops25h 36m

$1,496

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Fri 11/20

9:50 pm-9:15 am

3 stops44h 25m

Siem Reap–Angkor Intl

Mon 12/7

1:20 pm-10:33 pm

3 stops24h 13m

$1,520

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Fri 11/20

9:50 pm-8:30 pm

2 stops55h 40m

Siem Reap–Angkor Intl

Mon 12/7

6:50 pm-11:25 am

3 stops31h 35m

$1,532

Quickest round-trip

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Tue 7/14

5:36 pm-1:15 pm

3 stops29h 39m

Siem Reap–Angkor Intl

Tue 7/28

12:55 pm-11:35 pm

3 stops24h 40m

$1,641

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Fri 11/20

9:50 pm-8:30 pm

2 stops55h 40m

Siem Reap–Angkor Intl

Mon 12/7

7:25 pm-6:31 pm

2 stops38h 06m

$1,675

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Tue 7/14

5:36 pm-1:15 pm

3 stops29h 39m

Siem Reap–Angkor Intl

Tue 7/28

12:55 pm-11:35 pm

3 stops24h 40m

$1,676

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Tue 7/14

10:45 am-9:30 pm

3 stops44h 45m

Siem Reap–Angkor Intl

Tue 7/28

11:50 pm-7:54 pm

3 stops34h 04m

$1,837

PortlandSiem Reap

PDX - SAI

PDXSAI

Portland

Tue 7/14

5:36 pm-1:15 pm

3 stops29h 39m

Siem Reap–Angkor Intl

Tue 7/28

12:55 pm-11:35 pm

3 stops24h 40m

$1,906

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Oregon to Region of Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long is the flight from Oregon to Region of Siem Reap?

Average flight duration from Oregon to Region of Siem Reap depends on which airport you fly into and out of. Flying from Portland to Siem Reap is 29h 39m on average, while flying from Redmond to Siem Reap is 35h 45m on average. Siem Reap is the most popular airport in Region of Siem Reap.

Cheap Oregon to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Region of Siem Reap

Fastest flight time	29h 39m
Direct flights	None

The fastest flight from Oregon to Region of Siem Reap takes 29h 39m

There are no direct flights from Oregon to Region of Siem Reap. There are no popular flight routes from Oregon to Region of Siem Reap.

Search flight deals

Frequently asked questions about flying from Oregon to Siem Reap

When did momondo last update prices for flights from Oregon to Siem Reap?
Prices for flights from Oregon to Siem Reap refresh daily.
How old do you have to be to fly from Oregon to Siem Reap?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Oregon to Siem Reap.
What documentation or ID do you need to fly to Siem Reap?
The necessary travel and health documents for your Siem Reap trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Oregon to Siem Reap?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Oregon to Siem Reap. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Oregon to Siem Reap with flexible booking policies on momondo?

All flight searches from Oregon to Siem Reap on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Oregon to Siem Reap?

momondo provides multiple filters to help you find the best flight to Siem Reap from Oregon. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Oregon to Siem Reap right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from Oregon and alert you when they change.

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Thu 7/23

Thu 7/30

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Siem Reap

Popular cities

Other flights from Oregon

Other flights to Siem Reap

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Siem Reap

Flights to Phnom Penhfrom $1,020

Flights to Siem Reapfrom $755

Flights to Krong Preah Sihanoukfrom $994

Cheap flights from Oregon to Siem Reap from $607

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Siem Reap departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Oregon to Siem Reap

Cheap round-trip flights

Cheap one-way flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Singapore Airlines flights from Oregon to Region of Siem Reap

Our best Singapore Airlines deals on Oregon to Region of Siem Reap flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Oregon to Siem Reap that are best for you.

See travel insights to Siem Reap from

How to get the cheapest flight ticket from Oregon to Region of Siem Reap

How long is the flight from Oregon to Region of Siem Reap?

Cheap Oregon to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Region of Siem Reap

Fastest flight time

Direct flights

Frequently asked questions about flying from Oregon to Siem Reap

Why use momondo?

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Siem Reap

Popular cities in Siem Reap

Popular flights according to clicks in the last 7 days on momondo

Oregon flight routes

According to popular flight searches on momondo this year

Region of Siem Reap flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Siem Reap

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Siem Reap

List of cabin classes available on flights landing in Siem Reap. Availability may vary depending on flight origin and airline.

Complete your trip to Siem Reap

Explore popular destinations other users love

According to popular flight searches on momondo this year