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 38m on average, while flying from Redmond to Siem Reap is 41h 52m on average. Siem Reap is the most popular airport in Region of 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.

$657 Cheap Flights from Oregon to Siem Reap in 2026

Find the cheapest flights from Oregon to Siem Reap

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9:50 pm - 5:40 pmPDX Portland-SAI Siem Reap–Angkor Intl

52h 50m2 stops San Francisco Ho Chi Minh City

9:30 pm - 8:48 pmSAI Siem Reap–Angkor Intl-PDX Portland

38h 18m2 stops Ho Chi Minh City San Francisco

$1,305Multiple Airlines

Tue, Jan 26 - Sat, Feb 13

9:50 pm - 5:40 pmPDX Portland-SAI Siem Reap–Angkor Intl

52h 50m2 stops San Francisco Ho Chi Minh City

6:40 pm - 8:48 pmSAI Siem Reap–Angkor Intl-PDX Portland

41h 08m2 stops Ho Chi Minh City San Francisco

$1,306Multiple Airlines

Fri, Jan 15 - Tue, Jan 26

9:50 pm - 5:40 pmPDX Portland-SAI Siem Reap–Angkor Intl

52h 50m2 stops San Francisco Ho Chi Minh City

6:40 pm - 8:48 pmSAI Siem Reap–Angkor Intl-PDX Portland

41h 08m2 stops Ho Chi Minh City San Francisco

$1,334Multiple Airlines

Fri, Jan 15 - Tue, Jan 26

5:55 pm - 5:40 pmPDX Portland-SAI Siem Reap–Angkor Intl

32h 45m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City

1:20 pm - 9:13 pmSAI Siem Reap–Angkor Intl-PDX Portland

22h 53m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,377Multiple Airlines

Fri, Jan 15 - Tue, Jan 26

6:50 pm - 6:20 pmPDX Portland-SAI Siem Reap–Angkor Intl

33h 30m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City

9:30 pm - 11:25 amSAI Siem Reap–Angkor Intl-PDX Portland

28h 55m3 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl Los Angeles

$1,410Multiple Airlines

Fri, Sep 11 - Mon, Dec 7

7:00 am - 9:55 amPDX Portland-SAI Siem Reap–Angkor Intl

35h 55m3 stops Los Angeles Tokyo Narita Singapore Changi

10:45 am - 9:25 amSAI Siem Reap–Angkor Intl-PDX Portland

37h 40m2 stops Singapore Changi Los Angeles

$1,433Multiple Airlines

Tue, Jan 26 - Sat, Feb 13

9:32 pm - 5:10 pmPDX Portland-SAI Siem Reap–Angkor Intl

29h 38m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Hanoi Noibai

9:30 pm - 11:25 amSAI Siem Reap–Angkor Intl-PDX Portland

28h 55m3 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl Los Angeles

$1,435Multiple Airlines

Fri, Sep 11 - Mon, Dec 7

7:08 am - 4:00 pmRDM Bend/Redmond-SAI Siem Reap–Angkor Intl

41h 52m2 stops Los Angeles Singapore Changi

10:45 am - 2:57 pmSAI Siem Reap–Angkor Intl-RDM Bend/Redmond

43h 12m2 stops Singapore Changi San Francisco

$1,502Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

7:08 am - 4:00 pmRDM Bend/Redmond-SAI Siem Reap–Angkor Intl

41h 52m2 stops Los Angeles Singapore Changi

10:45 am - 2:57 pmSAI Siem Reap–Angkor Intl-RDM Bend/Redmond

43h 12m2 stops Singapore Changi San Francisco

$1,508Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

7:08 am - 4:00 pmRDM Bend/Redmond-SAI Siem Reap–Angkor Intl

41h 52m3 stops Los Angeles Tokyo Narita Singapore Changi

10:45 am - 2:57 pmSAI Siem Reap–Angkor Intl-RDM Bend/Redmond

43h 12m2 stops Singapore Changi San Francisco

$1,514Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

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Route

Depart

Return

Price

Cheapest round-trip

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Tue 1/26

9:50 pm-5:40 pm

2 stops52h 50m

Siem Reap–Angkor Intl

Sat 2/13

9:30 pm-8:48 pm

2 stops38h 18m

$1,305

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

9:50 pm-5:40 pm

2 stops52h 50m

Siem Reap–Angkor Intl

Tue 1/26

6:40 pm-8:48 pm

2 stops41h 08m

$1,306

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

9:50 pm-5:40 pm

2 stops52h 50m

Siem Reap–Angkor Intl

Tue 1/26

6:40 pm-8:48 pm

2 stops41h 08m

$1,334

Quickest round-trip

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

5:55 pm-5:40 pm

3 stops32h 45m

Siem Reap–Angkor Intl

Tue 1/26

1:20 pm-9:13 pm

3 stops22h 53m

$1,377

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 9/11

6:50 pm-6:20 pm

3 stops33h 30m

Siem Reap–Angkor Intl

Mon 12/7

9:30 pm-11:25 am

3 stops28h 55m

$1,410

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Tue 1/26

7:00 am-9:55 am

3 stops35h 55m

Siem Reap–Angkor Intl

Sat 2/13

10:45 am-9:25 am

2 stops37h 40m

$1,433

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 9/11

9:32 pm-5:10 pm

3 stops29h 38m

Siem Reap–Angkor Intl

Mon 12/7

9:30 pm-11:25 am

3 stops28h 55m

$1,435

RedmondSiem Reap

RDM Bend/Redmond - SAI Siem Reap–Angkor Intl

RDMSAI

Bend/Redmond

Sun 11/1

7:08 am-4:00 pm

2 stops41h 52m

Siem Reap–Angkor Intl

Sun 11/8

10:45 am-2:57 pm

2 stops43h 12m

$1,502

RedmondSiem Reap

RDM Bend/Redmond - SAI Siem Reap–Angkor Intl

RDMSAI

Bend/Redmond

Sun 11/1

7:08 am-4:00 pm

2 stops41h 52m

Siem Reap–Angkor Intl

Sun 11/8

10:45 am-2:57 pm

2 stops43h 12m

$1,508

RedmondSiem Reap

RDM Bend/Redmond - SAI Siem Reap–Angkor Intl

RDMSAI

Bend/Redmond

Sun 11/1

7:08 am-4:00 pm

3 stops41h 52m

Siem Reap–Angkor Intl

Sun 11/8

10:45 am-2:57 pm

2 stops43h 12m

$1,514

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

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What is the cheapest airline that flies from Oregon to Siem Reap?

Vietnam Airlines is the most popular carrier operating from Oregon to Siem Reap

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

Fastest flight time	29h 38m
Direct flights	None

The fastest flight from Oregon to Region of Siem Reap takes 29h 38m

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.

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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.

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Cheap flights from Oregon to Siem Reap from $595

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 1/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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