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Cheap flights from Seattle to Phnom Penh from $455

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Phnom Penh departing on 2/3. 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 Seattle to Phnom Penh

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Phnom Penh that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Phnom Penh.

Cheap last minute flights

Planning a quick getaway from Seattle to Phnom Penh? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Phnom Penh, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Phnom Penh

Find recent round-trip train or bus tickets from Seattle to Phnom Penh.

All round-trip flight deals to Phnom Penh

The cheapest plane tickets to Phnom Penh found on KAYAK recently.
11:00 am - 10:25 pmSEA-PNH
20h 25m1 stop
11:45 pm - 9:00 amPNH-SEA
24h 15m1 stop
$755Korean Air
Find Deal
pon., sty 13 - pon., sty 27
12:45 pm - 11:20 pmSEA-PNH
19h 35m1 stop
12:30 am - 10:55 amPNH-SEA
25h 25m1 stop
$788Asiana Airlines
Find Deal
pon., lut 3 - ndz., lut 23
12:45 pm - 11:20 pmSEA-PNH
19h 35m1 stop
12:30 am - 10:55 amPNH-SEA
25h 25m1 stop
$794Asiana Airlines
Find Deal
wt., lut 4 - pon., lut 10
1:45 pm - 11:20 pmSEA-PNH
19h 35m1 stop
11:55 pm - 12:35 pmPNH-SEA
26h 40m1 stop
$796Asiana Airlines
Find Deal
czw., mar 13 - ndz., mar 30
12:45 pm - 1:10 pmSEA-PNH
33h 25m2 stops
9:10 pm - 11:55 amPNH-SEA
52h 45m2 stops
pon., lut 24 - pon., mar 10
11:00 am - 10:25 pmSEA-PNH
20h 25m1 stop
11:45 pm - 10:00 amPNH-SEA
24h 15m1 stop
$829Korean Air
Find Deal
pon., lut 24 - pon., mar 10
1:10 am - 4:05 pmSEA-PNH
24h 55m1 stop
5:10 pm - 7:30 pmPNH-SEA
16h 20m1 stop
$956China Airlines
Find Deal
wt., kwi 15 - czw., maj 8
1:10 am - 11:25 amSEA-PNH
20h 15m1 stop
12:35 pm - 6:50 pmPNH-SEA
20h 15m1 stop
$1,050EVA Air
Find Deal
ndz., mar 16 - wt., kwi 1
1:10 am - 11:25 amSEA-PNH
20h 15m1 stop
12:35 pm - 7:30 pmPNH-SEA
20h 55m1 stop
$1,071EVA Air
Find Deal
śr., mar 12 - ndz., mar 30
8:06 am - 8:35 amSEA-PNH
33h 29m3 stops
1:45 pm - 10:00 amPNH-SEA
34h 15m2 stops
$1,236Singapore Airlines
Find Deal
pon., lut 24 - pon., mar 10
12:45 pm - 11:20 pmSEA-PNH
19h 35m1 stop
$455Asiana Airlines
Find Deal
pon., lut 3
12:45 pm - 11:20 pmSEA-PNH
19h 35m1 stop
$456Asiana Airlines
Find Deal
pon., lut 10
11:00 am - 10:25 pmSEA-PNH
20h 25m1 stop
$483Korean Air
Find Deal
wt., sty 21
11:00 am - 10:25 pmSEA-PNH
20h 25m1 stop
$485Korean Air
Find Deal
ndz., sty 19
12:10 am - 11:25 amSEA-PNH
20h 15m1 stop
$718EVA Air
Find Deal
sob., sty 18
8:04 am - 12:45 pmSEA-PNH
37h 41m3 stops
$890Singapore Airlines
Find Deal
pon., lut 3
12:10 am - 11:25 amSEA-PNH
20h 15m1 stop
$908EVA Air
Find Deal
czw., sty 2
10:01 am - 12:45 pmSEA-PNH
35h 44m3 stops
$1,449Singapore Airlines
Find Deal
śr., sty 22
12:10 am - 10:35 amSEA-PNH
19h 25m1 stop
$4,440China Airlines
Find Deal
pon., sty 6
12:10 am - 4:15 pmSEA-PNH
25h 05m1 stop
$4,514China Airlines
Find Deal
sob., sty 4
11:00 am - 10:25 pmSEA-PNH
20h 25m1 stop
11:45 pm - 9:00 amPNH-SEA
24h 15m1 stop
$1,337Korean Air
Find Deal
ndz., gru 29 - sob., sty 25
12:10 am - 11:25 amSEA-PNH
20h 15m1 stop
12:45 pm - 5:40 pmPNH-SEA
19h 55m1 stop
$1,364EVA Air
Find Deal
sob., gru 28 - sob., sty 25
12:10 am - 11:25 amSEA-PNH
20h 15m1 stop
9:45 am - 6:10 pmPNH-SEA
23h 25m2 stops
$1,389
Find Deal
sob., gru 28 - sob., sty 25
12:45 pm - 9:30 amSEA-PNH
29h 45m2 stops
9:10 pm - 10:55 amPNH-SEA
52h 45m2 stops
$1,445
Find Deal
ndz., gru 29 - sob., sty 25
8:40 am - 5:55 pmSEA-PNH
42h 15m1 stop
1:45 pm - 8:19 amPNH-SEA
33h 34m2 stops
$1,469Singapore Airlines
Find Deal
ndz., gru 29 - sob., sty 25
12:45 pm - 11:20 pmSEA-PNH
19h 35m1 stop
12:30 am - 10:55 amPNH-SEA
25h 25m1 stop
$1,544Asiana Airlines
Find Deal
ndz., gru 29 - pt., sty 24
12:45 pm - 9:30 amSEA-PNH
29h 45m2 stops
12:30 am - 10:55 amPNH-SEA
25h 25m1 stop
$1,743
Find Deal
ndz., gru 29 - pt., sty 24
9:40 pm - 8:35 amSEA-PNH
43h 55m2 stops
9:35 am - 10:52 pmPNH-SEA
52h 17m3 stops
$1,783Singapore Airlines
Find Deal
ndz., gru 29 - sob., sty 25
6:45 pm - 11:15 pmSEA-PNH
37h 30m2 stops
1:25 am - 3:00 pmPNH-SEA
28h 35m2 stops
$2,259China Eastern
Find Deal
ndz., gru 29 - pt., sty 24
11:00 am - 10:25 pmSEA-PNH
20h 25m1 stop
11:45 pm - 1:19 pmPNH-SEA
28h 34m1 stop
$2,950Korean Air
Find Deal
sob., gru 28 - sob., sty 4

Asiana Airlines flights from Seattle to Phnom Penh

Our best Asiana Airlines deals on Seattle to Phnom Penh flight tickets
Asiana Airlines
Feb 3
SEA12:45 pmSeattle/Tacoma Intl
19h 35m
1 stop
PNH11:20 pmPhnom Penh Pochentong
Feb 23
PNH12:30 amPhnom Penh Pochentong
25h 25m
1 stop
SEA10:55 amSeattle/Tacoma Intl
Asiana Airlines
Feb 4
SEA12:45 pmSeattle/Tacoma Intl
19h 35m
1 stop
PNH11:20 pmPhnom Penh Pochentong
Feb 10
PNH12:30 amPhnom Penh Pochentong
25h 25m
1 stop
SEA10:55 amSeattle/Tacoma Intl
Asiana Airlines
Mar 13
SEA1:45 pmSeattle/Tacoma Intl
19h 35m
1 stop
PNH11:20 pmPhnom Penh Pochentong
Mar 30
PNH11:55 pmPhnom Penh Pochentong
26h 40m
1 stop
SEA12:35 pmSeattle/Tacoma Intl

EVA Air flights from Seattle to Phnom Penh

Our best EVA Air deals on Seattle to Phnom Penh flight tickets
EVA Air
Mar 16
SEA1:10 amSeattle/Tacoma Intl
20h 15m
1 stop
PNH11:25 amPhnom Penh Pochentong
Apr 1
PNH12:35 pmPhnom Penh Pochentong
20h 15m
1 stop
SEA6:50 pmSeattle/Tacoma Intl
EVA Air
Mar 12
SEA1:10 amSeattle/Tacoma Intl
20h 15m
1 stop
PNH11:25 amPhnom Penh Pochentong
Mar 30
PNH12:35 pmPhnom Penh Pochentong
20h 55m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
EVA Air
Feb 23
SEA12:10 amSeattle/Tacoma Intl
20h 15m
1 stop
PNH11:25 amPhnom Penh Pochentong
Mar 10
PNH12:45 pmPhnom Penh Pochentong
20h 25m
1 stop
SEA7:10 pmSeattle/Tacoma Intl

See travel insights to Phnom Penh from

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

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 Phnom Penh?

In general, January is the cheapest month to fly from Seattle to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $989. If you aren’t able to travel to Phnom Penh during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,077.

What is the cheapest day to depart on your flight to Phnom Penh?

The cheapest day to depart from Seattle to Phnom Penh is on a Tuesday. Travelers who choose to depart for Phnom Penh on a Tuesday will often find tickets for as low as $1,100. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Phnom Penh for around $1,240.

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

According to our data, the cheapest time of day to fly to Phnom Penh is in the morning. momondo users have found flights departing from Seattle to Phnom Penh in the morning for as low as $1,058. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Phnom Penh are more costly in the afternoon, with an average ticket price of $1,321. Departure times in the afternoon 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 Phnom Penh?

We recommend purchasing flights from Seattle to Phnom Penh 17 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Phnom Penh for $1,241. However, in the past 72 hours, people saw flights from Seattle for as low as $917.

Can stopping save me money on Seattle to Phnom Penh flights?

You could potentially save up to 6% on your flight if you consider stops on a Seattle to Phnom Penh flight.

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

As of December 2024, prices for Seattle to Phnom Penh flights are approximately 28% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Phnom Penh

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

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

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

Best Price Found

$455

Fastest flight time

13h 35m

Direct flights

None

Airports in Phnom Penh

1 airport
The best one-way flight to Phnom Penh from Seattle in the past 72 hours is $455. The best round-trip flight deal from Seattle to Phnom Penh found on momondo in the last 72 hours is $755.
The fastest flight from Seattle to Phnom Penh takes 13h 35m
There are no direct flights from Seattle to Phnom Penh. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Phnom Penh Pochentong Airport.
There is 1 airport near Phnom Penh: Phnom Penh Pochentong (PNH)

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

    There are 7420.4 mi between Seattle/Tacoma Intl and Phnom Penh Pochentong. Flights usually cover this in 13h 35m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Phnom Penh Pochentong Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Phnom Penh Pochentong Airport.

  • What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

    The travel and health documents you'll need for your trip to Phnom Penh Pochentong Airport 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 Phnom Penh Pochentong Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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


Best airlines flying from Seattle to Phnom Penh

Compare and see reviews for airlines that fly from Seattle to Phnom Penh with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $796Free CancellationRating
8.1
1,330 reviews
Search Singapore Airlines flights
Asiana AirlinesPriceFrom $823Free CancellationRating
8.2
472 reviews
Search Asiana Airlines flights
China AirlinesPriceFrom $877Free CancellationRating
8.2
754 reviews
Search China Airlines flights
Korean AirPriceFrom $892Free CancellationRating
8.4
1,023 reviews
Search Korean Air flights
EVA AirPriceFrom $1,044Free CancellationRating
8.4
1,259 reviews
Search EVA Air flights

Why use momondo?

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

Finding the right flight to Phnom Penh from Seattle 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 Phnom Penh quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Seattle to Phnom Penh flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Phnom Penh from Seattle.

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

Yes. momondo can track prices for Seattle to Phnom Penh flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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