Which airports can I use when flying from Washington, D.C. to Phnom Penh?

Flights from Washington, D.C. to Phnom Penh may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Phnom Penh Techo Intl (KTI).

What cabin classes can I book on flights from Washington, D.C. to Phnom Penh?

Four cabin classes are available on flights from Washington, D.C. to Phnom Penh: • Economy Class • Premium Economy Class • Business Class • First Class Prices vary by airline.

Which airports do connecting flights from Washington, D.C. to Phnom Penh pass through?

One-stop flights from Washington, D.C. to Phnom Penh most commonly connect through: • Incheon Intl (ICN) - 62% of one-stop connections • Taipei City Taiwan Taoyuan Intl (TPE) - 23% of one-stop connections • Abu Dhabi Zayed Intl (AUH) - 15% of one-stop connections

Can I save money by using flexible dates for flights from Washington, D.C. to Phnom Penh?

Yes. Flexible dates can save you up to 27% on flights from Washington, D.C. to Phnom Penh. Tuesday is the cheapest departure day at $1,203 round-trip on average, while Monday is the most expensive at $1,628, a difference of $425. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How expensive are last-minute Washington, D.C. to Phnom Penh flights?

Last-minute fares on this route (booked within two weeks of departure) run 24% above the $1,339 route average. Book 15 weeks before departure for the lowest fares.

How long is a flight from Washington, D.C. to Phnom Penh?

A nonstop flight from Washington, D.C. to Phnom Penh takes 00m, covering 8,955 miles.

Do I need a passport to fly from Washington, D.C. to Phnom Penh?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How are flight prices from Washington, D.C. to Phnom Penh looking right now?

One-way fares from Washington, D.C. to Phnom Penh are currently lower than usual. Average one-way flight prices are about $676, which is 20% below the typical average for this route.

How much time can I save by choosing a different layover airport from Washington, D.C. to Phnom Penh?

Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 21h 44m, compared with 22h 17m via Incheon Intl (ICN) and 30h 59m via Abu Dhabi Zayed Intl (AUH).

What is the time difference between Washington, D.C. and Phnom Penh?

Phnom Penh is 11 hours ahead of Washington, D.C. (Indochina Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

How much should I expect to pay for a Washington, D.C. to Phnom Penh flight?

Round-trip flights from Washington, D.C. to Phnom Penh range from $1,165 to $1,621, with an average of $1,339 over the past 12 months. Anything below $1,165 counts as a good deal.

What is the cheapest Washington, D.C. to Phnom Penh flight route?

Washington, D.C. Reagan-National Airport (DCA) to Phnom Penh (KTI) is the cheapest Washington, D.C. to Phnom Penh route, averaging $1,198 round-trip. Other Washington, D.C. to Phnom Penh routes average $1,343, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Phnom Penh?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Washington, D.C. to Phnom Penh. It’s 11% cheaper than the average day, while Monday is the most expensive, with prices 21% higher.

What’s the cheapest month to fly from Washington, D.C. to Phnom Penh?

•January is the cheapest month to fly from Washington, D.C. to Phnom Penh at $1,182 round-trip. •June ($1,730) and July ($1,602) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 46% on average. This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Washington, D.C. to Phnom Penh the cheapest?

Flights from Washington, D.C. to Phnom Penh are cheapest 15 weeks before departure. Booking in this window typically costs about 32% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Which airline is the cheapest to fly from Washington, D.C. to Phnom Penh?

Korean Air ($1,083) and Qatar Airways ($1,096) are the cheapest airlines to fly round-trip from Washington, D.C. to Phnom Penh according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Washington, D.C. to Phnom Penh?

Incheon Intl (ICN) is the most popular layover for the Washington, D.C. to Phnom Penh route. 62% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via ICN.

What is the cheapest layover airport when flying from Washington, D.C. to Phnom Penh?

Flights via Abu Dhabi Zayed Intl (AUH) offer the most affordable fares, with an average round-trip price of $1,285. Based on KAYAK data over the past 3 months.

When flying from Washington, D.C. to Phnom Penh which airport offers the shortest layover?

Taipei City Taiwan Taoyuan Intl (TPE) had the shortest average connection time for Washington, D.C. to Phnom Penh layovers at 11h 45m over the past 3 months.

$501 CHEAP FLIGHTS from Washington, D.C. to Phnom Penh (WAS - KTI)

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Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$1,076

Typical prices: $1,165-$1,621

Multiple Airlines

Sat 2/3Thu 2/15

IAD - KTI • 2 stops

Cheapest one-way

$501

Typical prices: $722-$1,023

Multiple Airlines

Fri 1/19

DCA - KTI • 2 stops

Nonstop flights

Not available

There are currently no direct flights between Washington, D.C. and Phnom Penh. You'll need to take a connecting flight to reach the destination.

Insights

Top routes

DCA - KTI

Cheapest • 6% average savings

IAD - KTI

Most popular

Insights

When to book

15 weeks

in advance

Our data shows that travelers who book at least 15 weeks in advance save around 32% compared to booking last minute.

Insights

When to travel

January

Cheapest • 12% price drop

December

Most popular

Good to know

Top layover airports

Abu Dhabi Zayed Intl (AUH)

Cheapest • Avg $1,285 (round-trip)

Taipei City Taiwan Taoyuan Intl (TPE)

Shortest trip • 21h 44m (one-way)

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Flight Deals

Cheap Flights from Washington, D.C. to Phnom Penh (WAS-KTI)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Washington, D.C. to Phnom Penh

Wed, Feb 3 - Mon, Feb 15

12:20 pm - 8:45 amIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

32h 25m2 stops Tokyo Haneda Bangkok Suvarnabhumi

10:10 pm - 9:10 amKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

47h 00m2 stops Bangkok Suvarnabhumi Tokyo Haneda

$1,076Multiple Airlines

Thu, Feb 4 - Wed, Mar 3

6:30 pm - 10:45 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

40h 15m2 stops New York John F Kennedy Intl Incheon Intl

12:10 am - 9:50 amKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

21h 40m1 stop Incheon Intl

$1,083Korean Air

Mon, Apr 5 - Wed, Apr 21

9:00 pm - 4:15 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

32h 15m2 stops Doha Hamad Intl Ho Chi Minh City

5:40 pm - 3:40 pmKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

33h 00m2 stops Ho Chi Minh City Doha Hamad Intl

$1,096Qatar Airways

Thu, Feb 4 - Wed, Mar 3

11:50 am - 10:45 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

22h 55m1 stop Incheon Intl

12:10 am - 9:50 amKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

21h 40m1 stop Incheon Intl

$1,096Korean Air

Thu, Nov 12 - Mon, Nov 30

6:00 am - 10:25 amIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

40h 25m2 stops Los Angeles Hong Kong Intl

12:25 am - 6:30 pmKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

30h 05m1 stop Beijing Capital

$1,113Multiple Airlines

Fri, Jan 8 - Tue, Jan 26

8:05 pm - 3:25 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

31h 20m2 stops Doha Hamad Intl Ho Chi Minh City

5:10 pm - 3:55 pmKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

34h 45m2 stops Ho Chi Minh City Doha Hamad Intl

$1,136Qatar Airways

Tue, Nov 3 - Sat, Nov 14

2:25 pm - 6:20 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

39h 55m1 stop Abu Dhabi Zayed Intl

7:35 pm - 9:00 amKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

49h 25m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,207Etihad Airways

Wed, Nov 4 - Sat, Nov 14

2:25 pm - 6:40 amIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

28h 15m1 stop Abu Dhabi Zayed Intl

7:35 pm - 9:00 amKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

49h 25m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,207Etihad Airways

Tue, Nov 3 - Sun, Nov 15

7:45 am - 10:45 pmDCA Washington, D.C. Reagan-National-KTI Phnom Penh Techo Intl

27h 00m2 stops Minneapolis St Paul Incheon Intl

12:10 am - 8:41 pmKTI Phnom Penh Techo Intl-DCA Washington, D.C. Reagan-National

32h 31m2 stops Incheon Intl Atlanta Hartsfield-Jackson

$1,239Delta

Mon, Nov 2 - Wed, Nov 11

7:23 am - 10:45 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

27h 22m2 stops Minneapolis St Paul Incheon Intl

12:10 am - 4:26 pmKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

28h 16m2 stops Incheon Intl Detroit Metropolitan Wayne County

$1,239Delta

Recent last minute flight deals from Washington, D.C. to Phnom Penh

Sun, Oct 18 - Wed, Nov 18

9:00 pm - 4:15 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

32h 15m2 stops Doha Hamad Intl Ho Chi Minh City

5:10 pm - 3:55 pmKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

34h 45m2 stops Ho Chi Minh City Doha Hamad Intl

$1,137Qatar Airways

Sun, Oct 18 - Wed, Nov 18

12:59 pm - 10:15 amDCA Washington, D.C. Reagan-National-KTI Phnom Penh Techo Intl

34h 16m2 stops Chicago O'Hare Intl Hong Kong Intl

7:05 pm - 4:00 pmKTI Phnom Penh Techo Intl-DCA Washington, D.C. Reagan-National

32h 55m2 stops Hong Kong Intl Los Angeles

$1,166Multiple Airlines

Sun, Oct 18 - Wed, Nov 18

12:59 pm - 10:15 amDCA Washington, D.C. Reagan-National-KTI Phnom Penh Techo Intl

34h 16m2 stops Chicago O'Hare Intl Hong Kong Intl

11:45 am - 10:46 pmKTI Phnom Penh Techo Intl-DCA Washington, D.C. Reagan-National

23h 01m2 stops Hong Kong Intl Dallas/Fort Worth

$1,270Cathay Pacific

Sun, Oct 18 - Wed, Nov 18

7:14 pm - 10:15 amBWI Baltimore/Washington-KTI Phnom Penh Techo Intl

28h 01m2 stops Dallas/Fort Worth Hong Kong Intl

11:45 am - 10:53 pmKTI Phnom Penh Techo Intl-BWI Baltimore/Washington

23h 08m2 stops Hong Kong Intl Dallas/Fort Worth

$1,271Cathay Pacific

Sat, Oct 17 - Wed, Nov 18

1:15 am - 11:15 amIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

23h 00m1 stop Taipei City Taiwan Taoyuan Intl

12:45 pm - 8:55 pmKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

20h 10m1 stop Taipei City Taiwan Taoyuan Intl

$1,411EVA Air

Sun, Oct 18 - Wed, Nov 18

3:10 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

40h 35m1 stop Abu Dhabi Zayed Intl

5:25 pm - 9:00 amKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

27h 35m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,518Etihad Airways

Sun, Oct 18 - Wed, Nov 18

5:57 pm - 4:15 pmDCA Washington, D.C. Reagan-National-KTI Phnom Penh Techo Intl

35h 18m3 stops New York John F Kennedy Intl Doha Hamad Intl Ho Chi Minh City

5:10 pm - 7:15 pmKTI Phnom Penh Techo Intl-DCA Washington, D.C. Reagan-National

38h 05m3 stops Ho Chi Minh City Doha Hamad Intl New York John F Kennedy Intl

$1,596Qatar Airways

Sun, Oct 18 - Wed, Nov 18

6:57 pm - 8:40 amDCA Washington, D.C. Reagan-National-KTI Phnom Penh Techo Intl

50h 43m2 stops San Francisco Singapore Changi

7:40 pm - 10:52 pmKTI Phnom Penh Techo Intl-DCA Washington, D.C. Reagan-National

39h 12m3 stops Singapore Changi Frankfurt am Main New York John F Kennedy Intl

$1,691Multiple Airlines

Sun, Oct 18 - Wed, Nov 18

10:25 pm - 4:15 pmIAD Washington, D.C. Dulles Intl-KTI Phnom Penh Techo Intl

30h 50m3 stops London Heathrow Doha Hamad Intl Ho Chi Minh City

6:30 pm - 3:40 pmKTI Phnom Penh Techo Intl-IAD Washington, D.C. Dulles Intl

33h 10m2 stops Kuala Lumpur Intl London Heathrow

$5,064British Airways

Sun, Oct 18 - Wed, Nov 18

9:35 pm - 4:15 pmBWI Baltimore/Washington-KTI Phnom Penh Techo Intl

31h 40m3 stops London Heathrow Doha Hamad Intl Ho Chi Minh City

6:30 pm - 5:05 pmKTI Phnom Penh Techo Intl-BWI Baltimore/Washington

34h 35m2 stops Kuala Lumpur Intl London Heathrow

$5,351British Airways

Booking Insights

Price, demand and travel trends for Washington, D.C. to Phnom Penh flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

What is the cheapest Washington, D.C. to Phnom Penh flight route? KAYAK tracks online flight deals over the last 12 months and analyzes pricing trends to identify the best available fares.: Washington, D.C. Reagan-National Airport (DCA) to Phnom Penh (KTI) is the cheapest Washington, D.C. to Phnom Penh route, averaging $1,198 round-trip. Other Washington, D.C. to Phnom Penh routes average $1,343, based on KAYAK data over the past 12 months.
What's the cheapest day of the week to fly from Washington, D.C. to Phnom Penh?: Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Washington, D.C. to Phnom Penh. It’s 11% cheaper than the average day, while Monday is the most expensive, with prices 21% higher.
What’s the cheapest month to fly from Washington, D.C. to Phnom Penh? KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from Washington, D.C. to Phnom Penh, removes the top 0.1% to account for outliers and then takes the median of all values for each month.: •January is the cheapest month to fly from Washington, D.C. to Phnom Penh at $1,182 round-trip.
•June ($1,730) and July ($1,602) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 46% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.
When are flights from Washington, D.C. to Phnom Penh the cheapest?: Flights from Washington, D.C. to Phnom Penh are cheapest 15 weeks before departure. Booking in this window typically costs about 32% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Low season	May
High season	December
Cheapest flight	$501

Beat the crowds with an average 40% drop in travelers.

The most popular month to fly with an average 63% increase in travelers.

One-way flight from Washington, D.C. Reagan-National Airport to Phnom Penh

When to book flights from Washington, D.C. to Phnom Penh

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Washington, D.C. to Phnom Penh?
Four cabin classes are available on flights from Washington, D.C. to Phnom Penh:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.
How long is a flight from Washington, D.C. to Phnom Penh?
A nonstop flight from Washington, D.C. to Phnom Penh takes 00m, covering 8,955 miles.
Do I need a passport to fly from Washington, D.C. to Phnom Penh?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Washington, D.C. to Phnom Penh flight?
Round-trip flights from Washington, D.C. to Phnom Penh range from $1,165 to $1,621, with an average of $1,339 over the past 12 months. Anything below $1,165 counts as a good deal.
How expensive are last-minute Washington, D.C. to Phnom Penh flights?
Last-minute fares on this route (booked within two weeks of departure) run 24% above the $1,339 route average. Book 15 weeks before departure for the lowest fares.
How are flight prices from Washington, D.C. to Phnom Penh looking right now?
One-way fares from Washington, D.C. to Phnom Penh are currently lower than usual. Average one-way flight prices are about $676, which is 20% below the typical average for this route.
Which airports can I use when flying from Washington, D.C. to Phnom Penh?
Flights from Washington, D.C. to Phnom Penh may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Phnom Penh Techo Intl (KTI).
Which airports do connecting flights from Washington, D.C. to Phnom Penh pass through?
One-stop flights from Washington, D.C. to Phnom Penh most commonly connect through:

• Incheon Intl (ICN) - 62% of one-stop connections
• Taipei City Taiwan Taoyuan Intl (TPE) - 23% of one-stop connections
• Abu Dhabi Zayed Intl (AUH) - 15% of one-stop connections
Can I save money by using flexible dates for flights from Washington, D.C. to Phnom Penh?
Yes. Flexible dates can save you up to 27% on flights from Washington, D.C. to Phnom Penh. Tuesday is the cheapest departure day at $1,203 round-trip on average, while Monday is the most expensive at $1,628, a difference of $425.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from Washington, D.C. to Phnom Penh?
Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 21h 44m, compared with 22h 17m via Incheon Intl (ICN) and 30h 59m via Abu Dhabi Zayed Intl (AUH).
What is the time difference between Washington, D.C. and Phnom Penh?
Phnom Penh is 11 hours ahead of Washington, D.C. (Indochina Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average $1,203, about $425 less than Monday fares (26% savings) based on the last 12 months.
For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 32% versus last-minute pricing (KAYAK booking data, last 12 months).
If you can choose when to travel, plan your Washington, D.C. to Phnom Penh trip for January. Fares historically average $1,182 round-trip in that month - typically $548 less than the most expensive month, which is June (based on the last 12 months).

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WAS - KTI

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Everything you should know

Cheap Flights from Washington, D.C. to Phnom Penh (WAS-KTI)

Recent round-trip flight deals from Washington, D.C. to Phnom Penh

Recent one-way flight deals from Washington, D.C. to Phnom Penh

Recent last minute flight deals from Washington, D.C. to Phnom Penh

Price, demand and travel trends for Washington, D.C. to Phnom Penh flights

What is the cheapest Washington, D.C. to Phnom Penh flight route?

What's the cheapest day of the week to fly from Washington, D.C. to Phnom Penh?

What’s the cheapest month to fly from Washington, D.C. to Phnom Penh?

When are flights from Washington, D.C. to Phnom Penh the cheapest?

Which airline is the cheapest to fly from Washington, D.C. to Phnom Penh?

What’s the most popular layover airport when flying from Washington, D.C. to Phnom Penh?

What is the cheapest layover airport when flying from Washington, D.C. to Phnom Penh?

When flying from Washington, D.C. to Phnom Penh which airport offers the shortest layover?

Key details for Washington, D.C. to Phnom Penh flights

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When to book flights from Washington, D.C. to Phnom Penh

Your Washington, D.C. to Phnom Penh flight questions, answered

Your guide to booking Washington, D.C. to Phnom Penh flights

More options for your flight from Washington, D.C. to Phnom Penh

Complete your trip to Phnom Penh with a hotel stay or car rental

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Cabin class types available on flights from Washington, D.C. to Phnom Penh

Find direct flights to and from Washington, D.C. and Phnom Penh

Flights from domestic origins to Phnom Penh

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