Cheap flights from Portland to Siem Reap from £484

Cheap flights from Portland to Siem Reap from £484

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3 stops
Mon, Aug 3
Portland PDXSiem Reap SAI
£484
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3 stops
Wed, Aug 5
Portland PDXSiem Reap SAI
£512
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3 stops
Mon, Aug 3
Portland PDXSiem Reap SAI
£525
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3 stops
Fri, Aug 7
Portland PDXSiem Reap SAI
£539
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3 stops
Sat, Aug 8
Portland PDXSiem Reap SAI
£539
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3 stops
Wed, Aug 5
Portland PDXSiem Reap SAI
£556
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3 stops
Wed, Aug 5 – Wed, Aug 12
Portland PDXSiem Reap SAI
£1,154
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3 stops
Fri, Aug 7 – Thu, Aug 13
Portland PDXSiem Reap SAI
£1,169
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3 stops
Wed, Aug 5 – Tue, Aug 11
Portland PDXSiem Reap SAI
£1,189
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3 stops
Wed, Aug 5 – Tue, Aug 11
Portland PDXSiem Reap SAI
£1,190
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3 stops
Wed, Aug 5 – Wed, Aug 12
Portland PDXSiem Reap SAI
£1,190
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3 stops
Wed, Aug 5 – Wed, Aug 12
Portland PDXSiem Reap SAI
£1,198
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How much do flights to Siem Reap cost?

Cheapest one-way trip

£484

Cheapest round-trip

£1,154

Average round-trip

£1,255

Includes rare itinerary

Travel hack

Most popular airline

Alaska Airlines

Getting from Siem Reap airport to the city center

Fastest options: taxi and private transfer. Best value: tuk-tuk and shared shuttle.

Siem Reap is served by Siem Reap Angkor International Airport (SAI), located approximately 8 km east of the city center. This modern airport opened in 2023 and offers various airport transfers to city center destinations. Transport options include taxis, tuk-tuks, hotel shuttles, private transfers, and ride-hailing services. Journey times are generally short due to the airport's proximity to town, though traffic conditions can vary, especially during peak tourist season.

Transport Option

Typical time

Typical cost

Frequency

Best for

15-25 min

$12 – $15; fixed fare to city center

on-demand 24/7 (traffic dependent)

comfort with luggage

20-30 min

$5 – $8; negotiate fare before departure

on-demand (traffic dependent)

budget travelers

15-30 min

$0 – $15; often complimentary; check with hotel

by arrangement (traffic dependent)

convenience if pre-booked

15-25 min

$15 – $25; pre-booked; air-conditioned vehicle

by arrangement (traffic dependent)

families and groups

15-25 min

$6 – $12; app-based pricing; varies with demand

on-demand (traffic dependent)

transparent pricing

15-25 min

$30 – $60; per day; driver often included

by arrangement (traffic dependent)

temple exploration flexibility

Notes:

  • Prices in USD; table created in 2025 and subject to change.
  • Tuk-tuk fares should be negotiated before departure; agree on the price clearly.
  • Many hotels offer complimentary airport pickup; confirm when booking accommodation.
  • Ride-hailing apps require local SIM or WiFi connection at the airport.
  • We recommend checking official transport websites for your travel planning.

Updated: December 2025

Key info about flying to Siem Reap

Depart from
Portland International
Arrive to
Siem Reap–Angkor International Airport
Average flights per week
265
Flight distance

Check-in for a flight from Portland to Siem Reap

NameCarrier codeIATA CodePassport needed during booking
Alaska AirlinesASAASNo
Vietnam AirlinesHVNVNYes
Air CambodiaKHVK6No
Air CanadaACAACYes
Thai AirAsiaAIQFDNo

Online check-in is not available for these airlines.

Weather in Siem Reap

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January31°C21°C
February34°C23°C
March35°C25°C
April35°C26°C
May34°C26°C
June32°C25°C
July31°C24°C
August31°C25°C
September30°C24°C
October30°C24°C
November30°C23°C
December30°C21°C
Hottest Month
35°C
March
Coldest month
21°C
January
Sunny days
223
days per year

14 day forecast

Saturday
18 Jul
37%
34°C25°C
25 Jul
81%
31°C24°C
Sunday
19 Jul
35°C24°C
26 Jul
80%
31°C24°C
Monday
20 Jul
35°C24°C
27 Jul
83%
31°C24°C
Tuesday
21 Jul
57%
35°C25°C
28 Jul
87%
26°C24°C
Wednesday
22 Jul
36%
35°C25°C
29 Jul
76%
31°C24°C
Thursday
23 Jul
14%
32°C25°C
30 Jul
62%
32°C25°C
Friday
24 Jul
85%
30°C25°C
31 Jul
57%
32°C26°C
The most popular airlines for this route are Alaska Airlines, Vietnam Airlines, Air Cambodia, Air Canada, and Thai AirAsia. Portland and Siem Reap have 265 direct flights per week.

Frequently asked questions

What are the most popular routes to and from Portland?
Travelers frequently search for route combinations, such as Portland and London, Guadalajara, Mexico City, Los Angeles, Las Vegas, Phoenix, San Francisco, Oaxaca, Manchester, Edinburgh, Denver, Kailua, New York, Ontario, Calgary, Puerto Escondido, Oaxaca, Chicago, San Diego, Puerto Vallarta, San José del Cabo.
What are the most popular routes to and from Siem Reap?
Travelers frequently search for route combinations, such as Siem Reap and Bangkok, London, Phnom Penh, Hanoi, Phuket City, Singapore, Phuket Province, Chiang Mai, Ho Chi Minh City, Kuala Lumpur, Da Nang, Sihanoukville Province, Vientiane, Krabi, Bali, Manila, Denpasar, Ko Samui, Perth, Surat Thani Province.
What airports are near Portland?
The main airport in Portland is Portland International. It is also served by Seattle–Tacoma International, Portland International, Eugene, Roberts Field, Boeing Field, Kenmore Air Harbor Seaplane Base.
Which airlines fly between Portland and Siem Reap?
Currently, you can fly between Portland and Siem Reap with Alaska Airlines, Vietnam Airlines, Air Cambodia, Air Canada, Thai AirAsia.
When’s the best time to travel between Portland and Siem Reap?
If you don’t have specific dates for your trip between Portland and Siem Reap, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between Portland and Siem Reap?
Traveling between Portland and Siem Reap, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.
How many airports are there near Portland?
There are a number of airports in and around Portland. The main one is Portland International and other nearby airports include Seattle–Tacoma International, Portland International, Eugene, Roberts Field, Boeing Field, Kenmore Air Harbor Seaplane Base
What time do nonstop (direct) flights between Portland and Siem Reap depart?
This depends on the airline’s flight schedule. You can easily select your preferred departure time when you search on our website or mobile app. Choose the time of day you wish to depart from Portland, such as morning, afternoon, evening, or night, or select the exact hours for departure.
What time do nonstop (direct) flights between Portland and Siem Reap arrive?
This depends on the airline’s flight schedule. You can easily select your preferred arrival time when you search on our website or mobile app. Choose the time of day you wish to arrive at Siem Reap, such as morning, afternoon, evening, or night, or select the exact hours for arrival.
What time do flights between Portland and Siem Reap depart?
What time do flights between Portland and Siem Reap arrive?

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