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Cheap flights from Portland to Siem Reap from $1,328

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
2:30 pm - 7:05 pmPDX  Portland-SAI Siem Reap–Angkor Intl
37h 35m2 stops San Francisco Ho Chi Minh City
Multiple Airlines Logo
10:20 am - 8:48 pmSAI  Siem Reap–Angkor Intl-PDX Portland
25h 28m2 stops Ho Chi Minh City San Francisco
$1,328Multiple Airlines
Sun, Feb 14 - Thu, Mar 11
Multiple Airlines Logo
10:59 am - 5:40 pmPDX  Portland-SAI Siem Reap–Angkor Intl
63h 41m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
9:30 pm - 10:17 pmSAI  Siem Reap–Angkor Intl-PDX Portland
39h 47m3 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
$1,517Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
2:46 pm - 8:30 pmPDX  Portland-SAI Siem Reap–Angkor Intl
38h 44m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
1:20 pm - 8:50 pmSAI  Siem Reap–Angkor Intl-PDX Portland
22h 30m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
$1,519Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
10:59 am - 5:40 pmPDX  Portland-SAI Siem Reap–Angkor Intl
63h 41m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
1:20 pm - 8:50 pmSAI  Siem Reap–Angkor Intl-PDX Portland
22h 30m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
$1,526Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
5:06 pm - 8:30 pmPDX  Portland-SAI Siem Reap–Angkor Intl
36h 24m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
1:20 pm - 10:17 pmSAI  Siem Reap–Angkor Intl-PDX Portland
23h 57m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
$1,562Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
5:35 pm - 3:50 pmPDX  Portland-SAI Siem Reap–Angkor Intl
31h 15m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
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
$1,674Multiple Airlines
Sun, Feb 14 - Thu, Mar 11
Multiple Airlines Logo
8:30 am - 8:30 pmPDX  Portland-SAI Siem Reap–Angkor Intl
45h 00m3 stops Seattle/Tacoma Intl Tokyo Narita 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
$2,071Multiple Airlines
Fri, Jan 15 - Tue, Jan 26
Multiple Airlines Logo
5:25 am - 9:55 amPDX  Portland-SAI Siem Reap–Angkor Intl
37h 30m2 stops Seattle/Tacoma Intl Singapore Changi
Multiple Airlines Logo
10:45 am - 1:29 pmSAI  Siem Reap–Angkor Intl-PDX Portland
41h 44m2 stops Singapore Changi Seattle/Tacoma Intl
$2,220Multiple Airlines
Fri, Jan 15 - Tue, Jan 26

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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

Sun 2/14

2:30 pm-7:05 pm

2 stops37h 35m

Siem Reap–Angkor Intl

Thu 3/11

10:20 am-8:48 pm

2 stops25h 28m

$1,328

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

10:59 am-5:40 pm

3 stops63h 41m

Siem Reap–Angkor Intl

Tue 1/26

9:30 pm-10:17 pm

3 stops39h 47m

$1,517

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

2:46 pm-8:30 pm

3 stops38h 44m

Siem Reap–Angkor Intl

Tue 1/26

1:20 pm-8:50 pm

3 stops22h 30m

$1,519

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

10:59 am-5:40 pm

3 stops63h 41m

Siem Reap–Angkor Intl

Tue 1/26

1:20 pm-8:50 pm

3 stops22h 30m

$1,526

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

5:06 pm-8:30 pm

3 stops36h 24m

Siem Reap–Angkor Intl

Tue 1/26

1:20 pm-10:17 pm

3 stops23h 57m

$1,562
Quickest round-trip

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Sun 2/14

5:35 pm-3:50 pm

3 stops31h 15m

Siem Reap–Angkor Intl

Thu 3/11

1:20 pm-9:13 pm

3 stops22h 53m

$1,674

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

8:30 am-8:30 pm

3 stops45h 00m

Siem Reap–Angkor Intl

Tue 1/26

9:30 pm-8:50 pm

2 stops38h 20m

$2,071

PortlandSiem Reap

PDX Portland - SAI Siem Reap–Angkor Intl

PDXSAI

Portland

Fri 1/15

5:25 am-9:55 am

2 stops37h 30m

Siem Reap–Angkor Intl

Tue 1/26

10:45 am-1:29 pm

2 stops41h 44m

$2,220

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Portland to Region of Siem Reap flight deals and tips

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

Best Price Found

$1,328

Fastest flight time

63h 41m

Direct flights

None
The best flight deal from Portland to Region of Siem Reap found on momondo in the last 72 hours is $1,328
The fastest flight from Portland to Region of Siem Reap takes 63h 41m
There are no direct flights from Portland to Region of Siem Reap. There are no popular flight routes from Portland to Region of Siem Reap.
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Frequently asked questions about flying from Portland to Siem Reap

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

    Prices for flights from Portland Airport to Siem Reap were last updated today.

  • How old do you have to be to fly from Portland Airport 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 Portland Airport to Siem Reap.

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

    The travel and health documents you'll need for your trip to Siem Reap may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap. It is always advisable to seek advice from your airline or a trusted 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 Region of Siem Reap?

    Price Alerts will notify you by email when the price for flights to Region of Siem Reap from Portland decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

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

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

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

Finding the right flight to Siem Reap from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Siem Reap quick and easy, saving you time and money.

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?

Of course. momondo tracks the price of Portland to Siem Reap flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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