KTI - SEA

$488 Find Cheap Flights from Phnom Penh to Seattle - Compare and Save

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Everything you should know

Cheapest round-trip
$883
Typical prices: $796-$1,347
Philippine Airlines
Wed 12/5Wed 3/7
KTI - SEA • 1 stop
Cheapest one-way
$488
Typical prices: $546-$824
Philippine Airlines
Wed 12/26
KTI - SEA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Phnom Penh and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
May
Cheapest • 28% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Manila Ninoy Aquino Intl (MNL)
Cheapest • Avg $682 (round-trip)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 20h 09m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Phnom Penh to Seattle (KTI-SEA)

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

Recent round-trip flight deals from Phnom Penh to Seattle

Sat, Dec 5 - Sun, Mar 7
Philippine Airlines Logo
1:30 am - 6:45 pmKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
32h 15m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
9:30 pm - 12:15 amSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
35h 45m1 stop Manila Ninoy Aquino Intl
$883Philippine Airlines
Tue, Dec 8 - Wed, Mar 10
Philippine Airlines Logo
1:30 am - 6:45 pmKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
32h 15m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
9:30 pm - 12:15 amSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
35h 45m1 stop Manila Ninoy Aquino Intl
$905Philippine Airlines
Tue, Dec 8 - Mon, Mar 8
Cathay Pacific Logo
7:05 pm - 8:45 amKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
28h 40m1 stop Hong Kong Intl
Cathay Pacific Logo
10:25 am - 5:45 pmSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
40h 20m1 stop Hong Kong Intl
$985Cathay Pacific
Thu, Jan 21 - Sat, Jan 30
Multiple Airlines Logo
1:30 am - 6:45 pmKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
32h 15m1 stop Manila Ninoy Aquino Intl
Multiple Airlines Logo
3:45 pm - 8:45 amSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
26h 00m2 stops Tokyo Haneda Bangkok Suvarnabhumi
$996Multiple Airlines
Wed, Dec 9 - Sat, Mar 6
Cathay Pacific Logo
11:45 am - 8:45 amKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
36h 00m1 stop Hong Kong Intl
Cathay Pacific Logo
10:25 am - 5:45 pmSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
40h 20m1 stop Hong Kong Intl
$1,008Cathay Pacific
Sat, Dec 5 - Tue, Mar 9
Multiple Airlines Logo
7:55 pm - 6:45 pmKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
37h 50m2 stops Bangkok Suvarnabhumi Manila Ninoy Aquino Intl
Multiple Airlines Logo
10:25 am - 10:25 amSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
33h 00m1 stop Hong Kong Intl
$1,057Multiple Airlines
Fri, Dec 4 - Sun, Mar 7
Delta Logo
12:10 am - 11:56 amKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
26h 46m1 stop Incheon Intl
Delta Logo
12:45 pm - 10:45 pmSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
19h 00m1 stop Incheon Intl
$1,110Delta
Wed, Dec 9 - Mon, Mar 8
Delta Logo
12:10 am - 11:56 amKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
26h 46m1 stop Incheon Intl
Delta Logo
12:45 pm - 10:45 pmSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
19h 00m1 stop Incheon Intl
$1,110Delta
Wed, Dec 9 - Tue, Mar 9
Korean Air Logo
12:15 am - 9:05 amKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
23h 50m1 stop Incheon Intl
Korean Air Logo
12:10 am - 10:40 pmSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
31h 30m1 stop Incheon Intl
$1,114Korean Air
Wed, Dec 9 - Fri, Mar 5
Korean Air Logo
12:15 am - 2:10 pmKTI  Phnom Penh Techo Intl-SEA Seattle/Tacoma Intl
28h 55m1 stop Incheon Intl
Korean Air Logo
11:00 am - 10:40 pmSEA  Seattle/Tacoma Intl-KTI Phnom Penh Techo Intl
20h 40m1 stop Incheon Intl
$1,114Korean Air
Booking Insights

Price, demand and travel trends for Phnom Penh to Seattle flights

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

How much is a round-trip flight from Phnom Penh to Seattle?

Round-trip flights from Phnom Penh to Seattle typically range from $796 to $1,347. The lowest price found in the past 5 days was $883, on Philippine Airlines.

What's the cheapest day of the week to fly from Phnom Penh to Seattle?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Phnom Penh to Seattle. It’s 31% cheaper than the average day, while Tuesday is the most expensive, with prices 19% higher.

What’s the cheapest month to fly from Phnom Penh to Seattle?

•May is the cheapest month to fly from Phnom Penh to Seattle at $796 round-trip.
•March ($1,361) and July ($1,281) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 70% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Phnom Penh to Seattle flights

Low season

October

Cheapest flight

$488
Beat the crowds with an average 52% drop in travelers.
The most popular month to fly with an average 54% increase in travelers.
One-way flight from Phnom Penh to Seattle

When to book flights from Phnom Penh to Seattle

Are your dates flexible? Find out the best times to travel from Phnom Penh to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Phnom Penh to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Phnom Penh to Seattle?

    Three cabin classes are available on flights from Phnom Penh to Seattle:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Phnom Penh to Seattle?

    A nonstop flight from Phnom Penh to Seattle takes 00m, covering 7,440 miles.

  • Do I need a passport to fly from Phnom Penh to Seattle?

    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 Phnom Penh to Seattle flight?

    Round-trip flights from Phnom Penh to Seattle range from $796 to $1,347, with an average of $1,106 over the past 12 months. Anything below $796 counts as a good deal.

  • Have flight prices from Phnom Penh to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $883 to $7,479. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from Phnom Penh to Seattle looking right now?

    One-way fares from Phnom Penh to Seattle are currently higher than usual. Average one-way flight prices are about $1,235, which is 84% above the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • Which airports can I use when flying from Phnom Penh to Seattle?

    Flights from Phnom Penh to Seattle usually depart from Phnom Penh Techo Intl (KTI) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Phnom Penh to Seattle pass through?

    One-stop flights from Phnom Penh to Seattle most commonly connect through:

    • Taipei City Taiwan Taoyuan Intl (TPE) - 48% of one-stop connections
    • Incheon Intl (ICN) - 41% of one-stop connections
    • Manila Ninoy Aquino Intl (MNL) - 9% of one-stop connections
    • Hong Kong Intl (HKG) - 1% of one-stop connections

  • Can I save money by using flexible dates for flights from Phnom Penh to Seattle?

    Yes. Flexible dates can save you up to 43% on flights from Phnom Penh to Seattle. Friday is the cheapest departure day at $767 round-trip on average, while Tuesday is the most expensive at $1,323, a difference of $556.

    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 Phnom Penh to Seattle?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 20h 09m, compared with 28h 45m via Incheon Intl (ICN) and 29h 39m via Singapore Changi (SIN).

  • What is the time difference between Phnom Penh and Seattle?

    Seattle is 14 hours behind Phnom Penh (Pacific Time vs Indochina Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Phnom Penh to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Tuesday. On this route, Friday flights average $767, about $556 less than Tuesday fares (42% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Phnom Penh to Seattle trip for May. Fares historically average $796 round-trip in that month - typically $565 less than the most expensive month, which is March (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Phnom Penh to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Car rentals in Seattle
Hotels in Seattle
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