Cheap flights from Seattle to Phnom Penh from $468
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 7/30. 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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Asiana Airlines flights from Seattle to Phnom Penh
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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 $898. If you aren’t able to travel to Phnom Penh during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $926.
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?
You are more likely to see cheaper flights to Phnom Penh from Seattle when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,131 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from Seattle for as low as $985 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Phnom Penh Pochentong?
Asiana Airlines, Korean Air, and Singapore Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Phnom Penh Pochentong
What airlines fly to Phnom Penh?
EVA Air, Korean Air and China Airlines are the top three most popular airlines that fly to Phnom Penh from Seattle according to our data. EVA Air is the first choice among our users, with 29% of people opting to fly with this airline when traveling to Phnom Penh. Keep in mind that there are 6 different airlines that fly to Phnom Penh on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Phnom Penh
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
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 18h 10m, 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?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Phnom Penh Pochentong Airport is 6 as of June 2025.
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?
momondo data reveals that the most frequently booked airline on the route from Seattle to Phnom Penh is EVA Air, representing 28% of all bookings. The subsequent popular airlines are Korean Air at 24%, China Airlines at 23%, and Asiana Airlines at 22%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $693 | Free Cancellation | Rating 7.2 871 reviews | |||
| PriceFrom $756 | Free Cancellation | Rating 8.4 1,088 reviews | |||
| PriceFrom $782 | Free Cancellation | Rating 8.2 440 reviews | |||
| PriceFrom $806 | Free Cancellation | Rating 8.1 1,302 reviews | |||
| PriceFrom $944 | Free Cancellation | Rating 8.3 738 reviews | |||
| PriceFrom $1,004 | Free Cancellation | Rating 8.4 1,202 reviews |
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.