Cheap Flights from Phnom Penh to Washington from £510 Return

Flight deals from Phnom Penh to Washington

Looking for cheap tickets from Phnom Penh to Washington, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Seattle.£510 per passenger.Departing Fri, 17 Jul, returning Fri, 7 Aug.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Techo International on Fri, 17 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with Cathay Pacific, departs from Seattle / Tacoma International on Fri, 7 Aug, arriving in Techo International.Price includes taxes and charges.From £510, select.

Spokane.£1,106 per passenger.Departing Fri, 21 Nov, returning Mon, 1 Dec.Return flight with EVA Air and Hawaiian Airlines.Outbound indirect flight with EVA Air, departs from Techo International on Fri, 21 Nov, arriving in Spokane International.Inbound indirect flight with Hawaiian Airlines, departs from Spokane International on Mon, 1 Dec, arriving in Techo International.Price includes taxes and charges.From £1,106, select.

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Flying from Phnom Penh to Washington

Arm yourself with these facts on the fly.

Cheapest flight found	£510
Cheapest month to fly	July
Cheapest airport to fly from	Techo International

How to find cheap flights from Phnom Penh to Washington

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Phnom Penh to Washington. Other savvy travellers recently found return flights from £510 and one-way tickets from £341 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from Techo International into Seattle / Tacoma International

At the moment, the lowest priced flight tickets to Washington are from Techo International Airport to Seattle / Tacoma International Airport.

Fly in July

We crunched the flight calendar and found the cheapest time to fly from Phnom Penh to Washington is currently July.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Phnom Penh to anywhere you choose in Washington.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Phnom Penh to Washington go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Washington to Washington flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average Phnom Penh to Washington flight price?

We looked at all of the upcoming return flights from Phnom Penh to Washington we could find over the next 12 months. It looks like £510 is the best price. This is good, compared to the average Washington ticket price of £808.

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

The cheapest month to fly from Phnom Penh to Seattle / Tacoma International Airport is currently July. The cheapest month to fly from Phnom Penh to Spokane International Airport is usually November

Which upcoming date is cheapest to fly from Phnom Penh to Washington on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Phnom Penh to Washington on Friday, 17 July 2026.

Are there any direct flights from Phnom Penh to Washington?

Currently, there aren't any direct flights from Phnom Penh to Washington, but you can still fly with a stopover.

If I'm flying from Phnom Penh, where in Washington is cheapest to fly into?

If you're flying from Phnom Penh, the cheapest city in Washington to fly into is Seattle. The cheapest airport serving Seattle at the moment is Seattle / Tacoma International.