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Cheap flights from Portland to Siem Reap from $580

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portland to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:18 am - 9:40 amPDX  Portland-SAI Siem Reap–Angkor Intl
36h 22m2 stops San Francisco Singapore Changi
Multiple Airlines Logo
4:50 pm - 4:44 pmSAI  Siem Reap–Angkor Intl-PDX Portland
37h 54m2 stops Singapore Changi San Francisco
$1,317Multiple Airlines
Mon, Oct 19 - Mon, Oct 26
Multiple Airlines Logo
5:48 pm - 6:40 pmPDX  Portland-SAI Siem Reap–Angkor Intl
34h 52m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Da Nang
Multiple Airlines Logo
6:40 pm - 10:52 amSAI  Siem Reap–Angkor Intl-PDX Portland
30h 12m3 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl San Francisco
$1,340Multiple Airlines
Mon, Oct 19 - Mon, Oct 26
Multiple Airlines Logo
5:48 pm - 8:30 pmPDX  Portland-SAI Siem Reap–Angkor Intl
59h 42m3 stops Santa Ana J. Wayne/Orange Cnty San Francisco Ho Chi Minh City
Multiple Airlines Logo
9:30 pm - 8:50 pmSAI  Siem Reap–Angkor Intl-PDX Portland
38h 20m2 stops Ho Chi Minh City San Francisco
$1,341Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
6:10 pm - 5:40 pmPDX  Portland-SAI Siem Reap–Angkor Intl
32h 30m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
9:30 pm - 10:51 amSAI  Siem Reap–Angkor Intl-PDX Portland
28h 21m3 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl San Francisco
$1,355Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
6:10 pm - 5:40 pmPDX  Portland-SAI Siem Reap–Angkor Intl
32h 30m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
9:30 pm - 10:51 amSAI  Siem Reap–Angkor Intl-PDX Portland
28h 21m3 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl San Francisco
$1,371Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
2:34 pm - 9:55 amPDX  Portland-SAI Siem Reap–Angkor Intl
28h 21m2 stops Los Angeles Singapore Changi
Multiple Airlines Logo
4:50 pm - 1:48 pmSAI  Siem Reap–Angkor Intl-PDX Portland
35h 58m2 stops Singapore Changi San Francisco
$1,380Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
5:53 pm - 6:20 pmPDX  Portland-SAI Siem Reap–Angkor Intl
34h 27m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
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
$1,384Multiple Airlines
Fri, Sep 11 - Mon, Dec 7
Multiple Airlines Logo
9:35 pm - 6:55 pmPDX  Portland-SAI Siem Reap–Angkor Intl
55h 20m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
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
$1,391Multiple Airlines
Fri, Sep 11 - Mon, Dec 7
Multiple Airlines Logo
9:35 pm - 6:55 pmPDX  Portland-SAI Siem Reap–Angkor Intl
55h 20m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
6:40 pm - 1:50 pmSAI  Siem Reap–Angkor Intl-PDX Portland
34h 10m3 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl San Francisco
$1,398Multiple Airlines
Fri, Sep 11 - Mon, Dec 7
Multiple Airlines Logo
5:53 pm - 6:20 pmPDX  Portland-SAI Siem Reap–Angkor Intl
34h 27m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
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
$1,400Multiple Airlines
Fri, Sep 11 - Mon, Dec 7

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

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Cheapest round-trip

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Mon 10/19

7:18 am-9:40 am

2 stops36h 22m

Siem Reap–Angkor Intl

Mon 10/26

4:50 pm-4:44 pm

2 stops37h 54m

$1,317

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Mon 10/19

5:48 pm-6:40 pm

3 stops34h 52m

Siem Reap–Angkor Intl

Mon 10/26

6:40 pm-10:52 am

3 stops30h 12m

$1,340

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

5:48 pm-8:30 pm

3 stops59h 42m

Siem Reap–Angkor Intl

Tue 1/26

9:30 pm-8:50 pm

2 stops38h 20m

$1,341
Quickest round-trip

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

6:10 pm-5:40 pm

3 stops32h 30m

Siem Reap–Angkor Intl

Tue 1/26

9:30 pm-10:51 am

3 stops28h 21m

$1,355

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

6:10 pm-5:40 pm

3 stops32h 30m

Siem Reap–Angkor Intl

Tue 1/26

9:30 pm-10:51 am

3 stops28h 21m

$1,371

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

2:34 pm-9:55 am

2 stops28h 21m

Siem Reap–Angkor Intl

Tue 1/26

4:50 pm-1:48 pm

2 stops35h 58m

$1,380

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 9/11

5:53 pm-6:20 pm

3 stops34h 27m

Siem Reap–Angkor Intl

Mon 12/7

9:30 pm-11:25 am

3 stops28h 55m

$1,384

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 9/11

9:35 pm-6:55 pm

3 stops55h 20m

Siem Reap–Angkor Intl

Mon 12/7

9:30 pm-11:25 am

3 stops28h 55m

$1,391

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 9/11

9:35 pm-6:55 pm

3 stops55h 20m

Siem Reap–Angkor Intl

Mon 12/7

6:40 pm-1:50 pm

3 stops34h 10m

$1,398

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 9/11

5:53 pm-6:20 pm

3 stops34h 27m

Siem Reap–Angkor Intl

Mon 12/7

9:30 pm-11:25 am

3 stops28h 55m

$1,400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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When to book flights from Portland to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Siem Reap (PDX to SAI) flight deals and tips

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

Best Price Found

$580

Fastest flight time

32h 30m

Direct flights

None
The best one-way flight to Siem Reap from Portland in the past 72 hours is $580. The best round-trip flight deal from Portland to Siem Reap found on momondo in the last 72 hours is $1,317.
The fastest flight from Portland to Siem Reap takes 32h 30m
There are no direct flights from Portland to Siem Reap. There are no popular flight routes from Portland to Siem Reap.
Search flight deals

Frequently asked questions about flying from Portland to Siem Reap

  • How far is Portland to Siem Reap–Angkor Intl by plane?

    Siem Reap–Angkor Intl is 7436.5 mi away from Portland. In terms of flight time, this usually takes a little over 32h 30m.

  • When did momondo last update prices for flights from Portland Airport to Siem Reap–Angkor Intl Airport?

    Prices for flights from Portland Airport to Siem Reap–Angkor Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Portland Airport to Siem Reap–Angkor Intl Airport?

    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 Portland Airport to Siem Reap–Angkor Intl Airport.

  • What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

    The required travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Portland to Siem Reap

  • How do I get Price Alerts for flights from Portland to Siem Reap?

    Confirm your travel details to search for the latest offers for flights from Portland to Siem Reap. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Portland to Siem Reap with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

It is quick and easy to find Portland to Siem Reap flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Siem Reap that suits you.

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

Yes. momondo enables you to select and highlight flights to Siem Reap from Portland with this policy.

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

Once all potential Portland to Siem Reap flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Siem Reap from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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