Cheap flights from Washington, D.C. to Phnom Penh from $482
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Phnom Penh departing on 9/17. 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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China Airlines flights from Washington, D.C. to Phnom Penh
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Air China flights from Washington, D.C. to Phnom Penh
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How to get the cheapest flight ticket from Washington, D.C. 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 typical price of a round-trip flight between Washington, D.C. and Phnom Penh?
What is the cheapest month to fly to Phnom Penh?
In general, October is the cheapest month to fly from Washington, D.C. to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,317. If you aren’t able to travel to Phnom Penh during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,337.
What is the cheapest day to depart on your flight to Phnom Penh?
The cheapest day to depart from Washington, D.C. to Phnom Penh is on a Saturday. Travelers who choose to depart for Phnom Penh on a Saturday will often find tickets for as low as $1,543. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Phnom Penh for around $1,705.
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 evening. momondo users have found flights departing from Washington, D.C. to Phnom Penh in the evening for as low as $1,316. 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 at noon, with an average ticket price of $1,825. Departure times at noon 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 Washington, D.C. when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,647 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from Washington, D.C. for as low as $1,335 on momondo.
What is the cheapest airline that flies from Washington, D.C. to Phnom Penh Pochentong?
China Airlines, Korean Air, and Singapore Airlines are the most popular carriers operating from Washington, D.C. to Phnom Penh Pochentong
What airlines fly to Phnom Penh?
Korean Air, Qatar Airways and Etihad Airways are the top three most popular airlines that fly to Phnom Penh from Washington, D.C. according to our data. Korean Air is the first choice among our users, with 69% of people opting to fly with this airline when traveling to Phnom Penh. Keep in mind that there are 5 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 Washington, D.C. to Phnom Penh
Cheap Washington, D.C. to Phnom Penh (WAS to PNH) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Phnom Penh
How far is Washington, D.C. to Phnom Penh Pochentong by plane?
The distance between Washington, D.C. and Phnom Penh Pochentong is about 8941.3 mi. 21h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Phnom Penh Pochentong Airport?
Prices for flights from Washington, D.C. to Phnom Penh Pochentong Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Phnom Penh Pochentong Airport?
The number of operators available for flights from Washington, D.C. to Phnom Penh Pochentong Airport is 5 as of June 2025.
How old do you have to be to fly from Washington, D.C. to Phnom Penh Pochentong Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Phnom Penh Pochentong Airport.
What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?
The travel and health documents required for your trip to Phnom Penh Pochentong Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Phnom Penh Pochentong Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Washington, D.C. to Phnom Penh?
Based on momondo bookings for flights between Washington, D.C. and Phnom Penh, the leading airline is Korean Air, making up 89% of the total bookings. Other popular airlines include Etihad Airways with 11%.
Best airlines flying from Washington, D.C. to Phnom Penh
Compare and see reviews for airlines that fly from Washington, D.C. to Phnom Penh with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,048 | Free Cancellation | Rating 7.4 1,212 reviews | |||
| PriceFrom $1,299 | Free Cancellation | Rating 7.4 3,584 reviews | |||
| PriceFrom $1,304 | Free Cancellation | Rating 8.4 1,091 reviews | |||
| PriceFrom $1,311 | Free Cancellation | Rating 8.1 1,304 reviews | |||
| PriceFrom $1,334 | Free Cancellation | Rating 7.4 263 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Phnom Penh?
Finding the right flight to Phnom Penh from Washington, D.C. 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 Washington, D.C. to Phnom Penh with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Washington, D.C. to Phnom Penh flights to just show those with flexible booking policies.
How can momondo help me find flights from Washington, D.C. to Phnom Penh?
momondo helps you find the best flight between Washington, D.C. and Phnom Penh by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Washington, D.C. to Phnom Penh right now. Can momondo alert me if prices change?
Price alerts on flights to Phnom Penh from Washington, D.C. 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.