How does KAYAK find such low prices on flights from Washington to Phnom Penh?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Phnom Penh.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Phnom Penh?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phnom Penh from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Phnom Penh?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phnom Penh with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Phnom Penh?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phnom Penh from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$424 CHEAP FLIGHTS from Washington to Phnom Penh

Save 19% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

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

Flight Deals

Cheap Flights from Washington to Phnom Penh

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 to Phnom Penh

Fri, Jan 15 - Fri, Jan 22

8:40 am - 1:45 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

38h 05m1 stop Singapore Changi

9:35 am - 7:05 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

36h 30m1 stop Singapore Changi

$584Singapore Airlines

Wed, Jan 20 - Sat, Jan 30

8:40 am - 8:35 amSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

32h 55m1 stop Singapore Changi

9:35 am - 7:05 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

36h 30m1 stop Singapore Changi

$609Singapore Airlines

Wed, Mar 10 - Sun, Mar 21

10:25 am - 5:45 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

40h 20m1 stop Hong Kong Intl

7:05 pm - 9:45 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

28h 40m1 stop Hong Kong Intl

$823Cathay Pacific

Tue, Apr 6 - Tue, Apr 20

11:45 am - 5:15 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

39h 30m1 stop Hong Kong Intl

6:30 pm - 10:05 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

29h 35m1 stop Hong Kong Intl

$823Cathay Pacific

Mon, Nov 9 - Mon, Nov 16

3:40 pm - 8:45 amSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

26h 05m2 stops Tokyo Haneda Bangkok Suvarnabhumi

7:35 pm - 1:20 pmKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

32h 45m2 stops Bangkok Suvarnabhumi Tokyo Haneda

$843Multiple Airlines

Sun, Jan 3 - Sun, Jan 17

10:28 pm - 10:25 amSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

44h 57m2 stops Los Angeles Hong Kong Intl

7:05 pm - 8:45 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

28h 40m1 stop Hong Kong Intl

$874Multiple Airlines

Mon, Nov 2 - Wed, Nov 18

12:30 pm - 10:45 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

19h 15m1 stop Incheon Intl

12:10 am - 11:51 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

26h 41m1 stop Incheon Intl

$930Delta

Wed, Nov 11 - Wed, Nov 25

12:30 pm - 10:45 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

19h 15m1 stop Incheon Intl

12:10 am - 11:51 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

26h 41m1 stop Incheon Intl

$930Delta

Sun, Nov 8 - Wed, Nov 18

12:10 am - 10:45 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

31h 35m1 stop Incheon Intl

12:10 am - 2:10 pmKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

29h 00m1 stop Incheon Intl

$933Korean Air

Tue, Nov 17 - Tue, Nov 24

11:00 am - 10:45 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

20h 45m1 stop Incheon Intl

12:10 am - 9:05 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

23h 55m1 stop Incheon Intl

$933Korean Air

Recent last minute flight deals from Washington to Phnom Penh

Fri, Oct 9 - Fri, Nov 6

9:55 am - 5:40 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

41h 45m1 stop Singapore Changi

9:35 am - 7:05 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

36h 30m1 stop Singapore Changi

$961Singapore Airlines

Sat, Oct 10 - Wed, Oct 14

11:45 am - 10:15 amSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

32h 30m1 stop Hong Kong Intl

11:25 am - 10:05 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

36h 40m1 stop Hong Kong Intl

$1,049Cathay Pacific

Sat, Oct 10 - Wed, Oct 14

11:45 am - 10:15 amSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

32h 30m1 stop Hong Kong Intl

6:30 pm - 7:08 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

26h 38m2 stops Hong Kong Intl Vancouver Intl

$1,130Cathay Pacific

Thu, Oct 8 - Thu, Nov 5

1:30 am - 12:55 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

21h 25m2 stops Taipei City Taiwan Taoyuan Intl Ho Chi Minh City

1:30 am - 6:45 pmKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

32h 15m1 stop Manila Ninoy Aquino Intl

$1,134Multiple Airlines

Sat, Oct 10 - Wed, Oct 14

9:55 am - 5:40 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

41h 45m1 stop Singapore Changi

6:55 pm - 8:25 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

27h 30m1 stop Singapore Changi

$1,135Singapore Airlines

Thu, Oct 8 - Sun, Nov 1

1:30 am - 12:55 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

21h 25m2 stops Taipei City Taiwan Taoyuan Intl Ho Chi Minh City

10:20 pm - 6:10 pmKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

34h 50m2 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl

$1,151Multiple Airlines

Tue, Oct 13 - Sat, Dec 26

11:10 pm - 11:45 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

34h 35m1 stop Manila Ninoy Aquino Intl

1:30 am - 6:45 pmKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

32h 15m1 stop Manila Ninoy Aquino Intl

$1,315Philippine Airlines

Tue, Oct 13 - Fri, Dec 25

1:00 pm - 10:15 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

19h 15m1 stop Incheon Intl

12:10 am - 11:56 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

26h 46m1 stop Incheon Intl

$1,325Delta

Tue, Oct 13 - Mon, Dec 28

1:00 pm - 10:15 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

19h 15m1 stop Incheon Intl

12:10 am - 11:56 amKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

26h 46m1 stop Incheon Intl

$1,580Delta

Tue, Oct 13 - Tue, Dec 29

11:10 pm - 11:45 pmSEA Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl

34h 35m1 stop Manila Ninoy Aquino Intl

1:30 am - 6:45 pmKTI Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl

32h 15m1 stop Manila Ninoy Aquino Intl

$1,675Philippine Airlines

Useful Info

Low season	September
High season	July
Cheapest flight	$424

Best time to beat the crowds with an average 1% drop in price.

Most popular time to fly with an average 9% increase in price.

Flight from Seattle to Phnom Penh

How does KAYAK find such low prices on flights from Washington to Phnom Penh?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Phnom Penh.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Phnom Penh?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phnom Penh from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Phnom Penh?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phnom Penh with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Phnom Penh?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phnom Penh from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.