Cheap flights from Seattle (SEA) to Phnom Penh (PNH)

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The best prices from Seattle/Tacoma Intl to Phnom Penh Pochentong are usually found in September or October, booked 60 days in advance, depart on a Monday or Tuesday and return on a Thursday

How to find the cheapest flight from
Seattle (SEA) to Phnom Penh (PNH)

All the information you need to plan the best SEA to PNH flight in 2021: compare Seattle to Phnom Penh flight prices with the expected peak season, weather and rainfall in Phnom Penh.
SEA - PNH
Price
$714 - $1,184
PNH
Temperature
77 - 84.2 °F
PNH
Precipitation
0 - 9.8 inches

Popular in

June

High demand for flights, 28% potential price rise

Cheapest in

September

Best time to find cheap flights, 16% potential price drop

Round-trip from

$714

From Seattle/Tacoma Intl to Phnom Penh Pochentong

One-way from

$454

One-way flight from Seattle/Tacoma Intl to Phnom Penh Pochentong

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Seattle to Phnom Penh (SEA - PNH)?

One of the essential ways to save on airfare from Seattle to Phnom Penh is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 16% on airfare.

How far in advance should I book a flight from Seattle to Phnom Penh?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 8% on flights from Seattle to Phnom Penh compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $807. For sooner than that we have options available in the next 3 days from $896.

What is the cheapest month to fly from Seattle to Phnom Penh?

Our data shows that September tends to be the cheapest month to fly to Phnom Penh from Seattle. Users have commonly found prices around $852 for the month, but tickets can be as low as $478. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest day to fly round-trip from Seattle to Phnom Penh?

Users have found that leaving on a Sunday can be a cost-effective option. It’s possible to save up to 17% on your flight compared to booking on days when demand is much higher.

Cheap flights from Seattle to Phnom Penh in November, December 2021

The best prices found for SEA to PNH flights for November, December
9 Dec - 20 Jan
$746pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
30 Nov - 28 Feb
$762pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
28 Dec - 2 Mar
$764pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
   
2 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to Phnom Penh 2022 flight deals

Cheap flights to Phnom Penh from Seattle found for next year
9 Dec - 20 Jan
$746pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
30 Nov - 28 Feb
$762pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
28 Dec - 2 Mar
$764pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
   
2 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Phnom Penh

Late deals on round-trip flights to Phnom Penh from Seattle, departing today and this week
30 Nov - 28 Feb
$762pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
30 Nov - 28 Feb
$776pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Singapore Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl
30 Nov - 28 Feb
$791pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
PNH
Phnom Penh Pochentong
PNH
Phnom Penh Pochentong
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Pochentong from Seattle

The cheapest one-way flights from Seattle to Phnom Penh
6:00 am - 3:35 am
Singapore Airlines
1 Stop
30h 35m
SEA - PNH
Singapore Airlines
$454
DreamWorldTravel
8:00 am - 4:35 am
Singapore Airlines
2 Stops
30h 35m
SEA - PNH
Singapore Airlines
$467
SmartFares
6:00 am - 12:35 pm
Singapore Airlines
2 Stops
39h 35m
SEA - PNH
Singapore Airlines
$476
Singapore Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Phnom Penh</span> flights.

Flight FAQs

From Seattle to Phnom Penh

Which airlines flying from Seattle/Tacoma Intl to Phnom Penh Pochentong have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like EVA Air, Asiana Airlines, and Cathay Pacific flying from Seattle/Tacoma Intl to Phnom Penh Pochentong have implemented new flexible cancellation policies.

Can I find flights from Seattle to Phnom Penh for under $700 on Cheapflights?

Yes, there are multiple flights from Seattle to Phnom Penh for under $700. The cheapest flight booked recently is on Singapore Airlines for just $649, but on average you can expect to pay $746.

Are there last-minute flights available from Seattle to Phnom Penh for under $800?

There are currently 20+ open flights from Seattle to Phnom Penh within the next 7 days for less than $800.

How popular is this Seattle to Phnom Penh flight route?

The Seattle/Tacoma Intl to Phnom Penh Pochentong flight path was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What is the cheapest airline to fly from Seattle to Phnom Penh round-trip?

Our cheapest airline available from Seattle to Phnom Penh is Singapore Airlines. Our recent data shows that you can find tickets from as low as $649 on this airline. Singapore Airlines is 23% cheaper than the average price of flights available within the next 90 days to this destination.

What are the most popular airlines that fly from Seattle to Phnom Penh?

Consider EVA Air, Cathay Pacific or Korean Air when booking your flight. These represent the most popular airlines when flying from Seattle to Phnom Penh.

What are the cheapest flights from Seattle to Phnom Penh?

Looking at all options, your cheapest flight can be booked for $506. While the most popular route (Seattle/Tacoma Intl - Phnom Penh Pochentong) can be booked for $744 on average our data indicates $1,291 when flying from Seattle to Phnom Penh.

COVID Restrictions

View COVID Travel Restrictions for Phnom Penh, Cambodia

Do I need a COVID test to fly to Phnom Penh from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to Phnom Penh Pochentong

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Phnom Penh Pochentong.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Phnom Penh Pochentong.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Phnom Penh Pochentong.

Do I need a test to fly back to Seattle from Phnom Penh?

Returning to Seattle/Tacoma Intl from Phnom Penh Pochentong

COVID-19 testing requirements
Visitors from Phnom Penh Pochentong must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Phnom Penh Pochentong are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Phnom Penh, Cambodia

Destination information for Phnom Penh

Things to know before you go - useful duration and weather info for your trip from Seattle to Phnom Penh.
Today's exchange rate
$1 = 4,022.85៛
Average temperature for November in Phnom Penh
86.0 °F
Avg rainfall for November in Phnom Penh
0.9 ″

Airports servicing Seattle

Airports servicing Phnom Penh

Top 8 airlines flying from Seattle/Tacoma Intl to Phnom Penh Pochentong

The chart below displays the airlines Cheapflights users traveling from Seattle to Phnom Penh choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
China Eastern
$641 $900 No cancel fee 62%

We couldn't confirm the COVID-19 safety measures taken by China Eastern. Please check directly on their website for additional information.

Asiana Airlines
$651 $874 No cancel fee 76%

We couldn't confirm the COVID-19 safety measures taken by Asiana Airlines. Please check directly on their website for additional information.

Singapore Airlines
$667 $820 No cancel fee 81%
Cathay Pacific
$689 $928 No cancel fee 72%
Korean Air
$702 $1,122 No cancel fee 81%
EVA Air
$712 $947 No cancel fee 74%
United Airlines
$789 $900 No cancel fee 69%
ANA
$794 $909 No cancel fee 80%
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