Cheap flights from Washington, D.C. (WAS) to Siem Reap (REP)

WAS — REP
May 24 — May 311

How to find the cheapest flight from Washington, D.C. to Siem Reap

All the information you need to plan the best WAS to REP flight in 2022: compare Washington, D.C. to Siem Reap flight prices with the expected peak season, weather and rainfall in Siem Reap.

WAS - REP

Price

$964 - $1,664

REP

Temperature

75.2 - 84.2 °F

REP

Rainfall

0 - 10.2 inches

Popular inJulyHigh demand for flights, 27% potential price rise
Cheapest inNovemberBest time to find cheap flights, 20% potential price drop
Round-trip from$964From Washington, D.C. (WAS) to Siem Reap
One-way from$913One-way flight from Washington, D.C. (WAS) to Siem Reap

What is the cheapest day to fly round-trip from Washington, D.C. to Siem Reap?

Leaving on a Saturday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 4% on the overall cost on flights from Washington, D.C. to Siem Reap.

What is the cheapest month to fly from Washington, D.C. to Siem Reap?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Siem Reap. Flights to Siem Reap from Washington, D.C. in November are about $1,210 on average during November, but can be found for as low as $959.

When is the cheapest time to fly from Washington, D.C. to Siem Reap (WAS - REP)?

It’s optimal to fly from Washington, D.C. to Siem Reap at noon. By choosing this option you can save up to 1% on the cost of your flight, compared to a flight in the morning.

Cheap flights from Washington, D.C. to Siem Reap in May, June 2022

The best prices found for WAS to REP flights for May, June
Jun 30 - Jul 11
IAD

Washington, D.C. Dulles Intl

REP

Siem Reap

2 stops

35h 25m
REP

Siem Reap

IAD

Washington, D.C. Dulles Intl

2 stops

39h 55m
$2,587

Multiple Airlines

View Deal

Deal found 5/17/22

Jun 30 - Jul 11
IAD

Washington, D.C. Dulles Intl

REP

Siem Reap

2 stops

35h 25m
REP

Siem Reap

IAD

Washington, D.C. Dulles Intl

3 stops

65h 00m
$3,081

Multiple Airlines

View Deal

Deal found 5/17/22

May 20 - May 22
IAD

Washington, D.C. Dulles Intl

REP

Siem Reap

3 stops

29h 25m
REP

Siem Reap

IAD

Washington, D.C. Dulles Intl

3 stops

32h 30m
$3,412

Multiple Airlines

View Deal

Deal found 5/16/22

Washington, D.C. to Siem Reap 2022 flight deals

Cheap flights to Siem Reap from Washington, D.C. found for this year
Nov 17 - Nov 29
IAD

Washington, D.C. Dulles Intl

REP

Siem Reap

2 stops

53h 35m
REP

Siem Reap

IAD

Washington, D.C. Dulles Intl

3 stops

48h 52m
$1,285

Singapore Airlines

View Deal

Deal found 5/17/22

Nov 3 - Nov 11
DCA

Washington, D.C. Reagan-National

REP

Siem Reap

2 stops

53h 25m
REP

Siem Reap

DCA

Washington, D.C. Reagan-National

2 stops

47h 19m
$1,368

Multiple Airlines

View Deal

Deal found 5/17/22

Nov 17 - Nov 29
IAD

Washington, D.C. Dulles Intl

REP

Siem Reap

3 stops

53h 40m
REP

Siem Reap

IAD

Washington, D.C. Dulles Intl

3 stops

48h 52m
$1,406

Singapore Airlines

View Deal

Deal found 5/17/22

Cheap Singapore Airlines flights from Washington, D.C. to Siem Reap

Nov 3 - Nov 11
IAD

Washington, D.C. Dulles Intl

REP

Siem Reap

3 stops

56h 40m
REP

Siem Reap

IAD

Washington, D.C. Dulles Intl

3 stops

42h 02m
$1,773

Singapore Airlines

View Deal

Deal found 5/17/22

Nov 2 - Nov 11
DCA

Washington, D.C. Reagan-National

REP

Siem Reap

3 stops

37h 30m
REP

Siem Reap

DCA

Washington, D.C. Reagan-National

2 stops

46h 19m
$1,812

Singapore Airlines

View Deal

Deal found 5/17/22

Nov 4 - Nov 11
DCA

Washington, D.C. Reagan-National

REP

Siem Reap

3 stops

37h 30m
REP

Siem Reap

DCA

Washington, D.C. Reagan-National

2 stops

46h 19m
$1,862

Singapore Airlines

View Deal

Deal found 5/17/22

One-way flights to Siem Reap from Washington, D.C.

The cheapest one-way flights from Washington, D.C. to Siem Reap
Jun 21
BWI

Baltimore/Washington

REP

Siem Reap

3 stops

56h 08m
$913

Multiple Airlines

View Deal

Deal found 5/16/22

Jun 1
BWI

Baltimore/Washington

REP

Siem Reap

3 stops

57h 05m
$979

Multiple Airlines

View Deal

Deal found 5/16/22

Jun 8
BWI

Baltimore/Washington

REP

Siem Reap

3 stops

57h 05m
$1,055

Multiple Airlines

View Deal

Deal found 5/16/22

Related info for your journey

Useful info, stats and facts about Washington, D.C. to Siem Reap flights.

What airport do you fly into for flights to Siem Reap from Washington, D.C.?

Siem Reap (REP), located 4.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Siem Reap. 1 airline have flights to Siem Reap from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Siem Reap should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.

Which airlines flying from Washington, D.C. to Siem Reap have flexible changes due to COVID-19?

Cathay Pacific is one of the carriers that may have flexible change policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Washington, D.C. to Siem Reap for under $1,400 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. to Siem Reap for under $1,400. The cheapest flight booked recently is on Multiple Airlines for just $1,368, but on average you can expect to pay $1,757.

What is the cheapest airline to fly from Washington, D.C. to Siem Reap round-trip?

Singapore Airlines, at $1,773, was found to be the cheapest airline from Washington, D.C. to Siem Reap..

What are the most popular routes from Washington, D.C. to Siem Reap?

When deciding which route to take from Washington, D.C. to Siem Reap consider Washington, D.C. Dulles Intl - Siem Reap, Washington, D.C. Reagan-National - Siem Reap or Baltimore/Washington - Siem Reap as they are the most popular.

Top airline flying from Washington, D.C. to Siem Reap

The chart below displays the airlines Cheapflights users traveling from Washington, D.C. to Siem Reap choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Cathay PacificCheapest$1,001Average$1,108FlexibilityNo cancel feeOn-time72%COVID-19 safety
Search Cathay Pacific flights