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Cheap flights from Phnom Penh to Seattle from $460

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phnom Penh to Seattle departing on 5/22. 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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Find the cheapest flights from Phnom Penh to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Phnom Penh to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.
Philippine Airlines Logo
1:15 am - 7:15 pmPNH-SEA
32h 00m1 stop
Philippine Airlines Logo
8:41 am - 12:15 amSEA-PNH
49h 34m2 stops
$807Philippine Airlines
Find Deal
Tue, May 13 - Thu, May 22
 Logo
3:35 pm - 12:30 pmPNH-SEA
34h 55m2 stops
 Logo
2:15 pm - 10:50 amSEA-PNH
30h 35m2 stops
Wed, May 14 - Thu, May 22
Asiana Airlines Logo
11:55 pm - 12:30 pmPNH-SEA
26h 35m1 stop
Asiana Airlines Logo
2:15 pm - 10:55 pmSEA-PNH
18h 40m1 stop
$962Asiana Airlines
Find Deal
Wed, May 14 - Thu, May 22
Korean Air Logo
11:30 pm - 1:40 pmPNH-SEA
28h 10m1 stop
Korean Air Logo
12:55 pm - 10:10 pmSEA-PNH
19h 15m1 stop
$977Korean Air
Find Deal
Thu, Jun 5 - Thu, Jun 12
Asiana Airlines Logo
11:55 pm - 12:30 pmPNH-SEA
26h 35m1 stop
Asiana Airlines Logo
2:30 pm - 10:55 pmSEA-PNH
18h 25m1 stop
$985Asiana Airlines
Find Deal
Mon, Jun 23 - Tue, Jul 15
China Airlines Logo
5:10 pm - 7:30 pmPNH-SEA
16h 20m1 stop
China Airlines Logo
1:40 am - 9:50 amSEA-PNH
18h 10m1 stop
$1,015China Airlines
Find Deal
Mon, Jun 23 - Mon, Jul 14
EVA Air Logo
12:35 pm - 7:30 pmPNH-SEA
20h 55m1 stop
EVA Air Logo
1:50 am - 11:15 amSEA-PNH
19h 25m1 stop
$1,182EVA Air
Find Deal
Wed, May 14 - Wed, May 21
China Airlines Logo
5:10 pm - 7:30 pmPNH-SEA
16h 20m1 stop
China Airlines Logo
1:10 am - 4:05 pmSEA-PNH
24h 55m1 stop
$1,187China Airlines
Find Deal
Thu, Jun 5 - Tue, Jun 10
EVA Air Logo
12:35 pm - 7:30 pmPNH-SEA
20h 55m1 stop
EVA Air Logo
1:50 am - 11:15 amSEA-PNH
19h 25m1 stop
$1,188EVA Air
Find Deal
Thu, Jun 5 - Thu, Jun 12
Korean Air Logo
11:30 pm - 4:08 pmPNH-SEA
30h 38m2 stops
Korean Air Logo
12:55 pm - 10:10 pmSEA-PNH
19h 15m1 stop
$1,288Korean Air
Find Deal
Thu, Jun 5 - Wed, Jun 11

China Airlines flights from Phnom Penh to Seattle

Our best China Airlines deals on Phnom Penh to Seattle flight tickets
China Airlines
Jun 23
PNH5:10 pmPhnom Penh Pochentong
16h 20m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
Jul 14
SEA1:40 amSeattle/Tacoma Intl
18h 10m
1 stop
PNH9:50 amPhnom Penh Pochentong
China Airlines
Jun 5
PNH5:10 pmPhnom Penh Pochentong
16h 20m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
Jun 10
SEA1:10 amSeattle/Tacoma Intl
24h 55m
1 stop
PNH4:05 pmPhnom Penh Pochentong
China Airlines
Jun 23
PNH5:10 pmPhnom Penh Pochentong
29h 55m
2 stops
SEA9:05 amSeattle/Tacoma Intl
Jul 15
SEA3:25 pmSeattle/Tacoma Intl
34h 40m
2 stops
PNH4:05 pmPhnom Penh Pochentong

Asiana Airlines flights from Phnom Penh to Seattle

Our best Asiana Airlines deals on Phnom Penh to Seattle flight tickets
Asiana Airlines
May 14
PNH11:55 pmPhnom Penh Pochentong
26h 35m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
May 22
SEA2:15 pmSeattle/Tacoma Intl
18h 40m
1 stop
PNH10:55 pmPhnom Penh Pochentong
Asiana Airlines
Jun 23
PNH11:55 pmPhnom Penh Pochentong
26h 35m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
Jul 15
SEA2:30 pmSeattle/Tacoma Intl
18h 25m
1 stop
PNH10:55 pmPhnom Penh Pochentong
Asiana Airlines
Jun 7
PNH11:55 pmPhnom Penh Pochentong
26h 35m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
Jun 13
SEA2:15 pmSeattle/Tacoma Intl
18h 40m
1 stop
PNH10:55 pmPhnom Penh Pochentong

See travel insights to Seattle from

How to get the cheapest flight ticket from Phnom Penh to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, November is the cheapest month to fly from Phnom Penh to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $964. If you don’t want to visit Seattle in November, then you should wait until February to fly from Phnom Penh, when ticket prices are also cheap, with an average price of $985.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Phnom Penh is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,104. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from Phnom Penh because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,403.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Phnom Penh at noon is the least expensive time of day to depart. momondo users have found prices as low as $992 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $1,354. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Seattle from Phnom Penh when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $1,163 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Phnom Penh for as low as $836 on momondo.

How have Phnom Penh to Seattle flight prices changed over time?

As of April 2025, prices for Phnom Penh to Seattle flights are approximately 19% cheaper when compared to flights at the same time last year.

When to book flights from Phnom Penh to Seattle

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

Cheap Phnom Penh to Seattle (PNH to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phnom Penh to Seattle

Best Price Found

$460

Fastest flight time

16h 20m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Phnom Penh in the past 72 hours is $460. The best round-trip flight deal from Phnom Penh to Seattle found on momondo in the last 72 hours is $807.
The fastest flight from Phnom Penh to Seattle takes 16h 20m
There are no direct flights from Phnom Penh to Seattle. Popular non-direct route for this connection is Phnom Penh Pochentong Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Phnom Penh Pochentong to Seattle/Tacoma Intl by plane?

    Phnom Penh Pochentong and Seattle/Tacoma Intl are 7420.4 mi apart from one another. In terms of flight time, this usually takes a little over 16h 20m.

  • When did momondo last update prices for flights from Phnom Penh Pochentong Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Phnom Penh Pochentong Airport to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Phnom Penh Pochentong Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Phnom Penh Pochentong Airport to Seattle/Tacoma 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 Phnom Penh Pochentong Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport 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.

  • What is the most popular airline from Phnom Penh to Seattle?


Best airlines flying from Phnom Penh to Seattle

Compare and see reviews for airlines that fly from Phnom Penh to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Asiana AirlinesPriceFrom $742Free CancellationRating
8.2
442 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $831Free CancellationRating
8.4
1,066 reviews
Search Korean Air flights
China AirlinesPriceFrom $928Free CancellationRating
8.3
732 reviews
Search China Airlines flights
EVA AirPriceFrom $1,083Free CancellationRating
8.4
1,186 reviews
Search EVA Air flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
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Why use momondo?

Why should I use momondo to find a flight deal from Phnom Penh to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Phnom Penh to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Phnom Penh to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Phnom Penh on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Phnom Penh to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Phnom Penh to Seattle.

I’m not ready to book a flight from Phnom Penh to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Phnom Penh 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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