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Flights from Seattle to Phnom Penh Starting at $640

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Seattle to Phnom Penh?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Find cheap airlines flights from Seattle to Phnom Penh

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Japan Airlines
From $545
Alaska Airlines
From $558
Delta Air Lines
From $559
United Airlines
From $597
Hainan Airlines
From $606
EVA Air
From $636
Korean Air
From $640
Turkish Airlines
From $695
Asiana Airlines
From $701
All Nippon Airways
From $722
ANA airlines

Find more flights and airlines

Alternative Cheap Routes from Seattle to Phnom Penh

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to Phnom Penh.

  • Cheapest
    Japan Airlines
    SEA
    13:30
    41h 10m
    2 transfer
    PNH
    20:40
    Seattle-Tacoma International Airport - Phnom Penh International Airport
    Sun, Apr 28Japan Airlines
    $545
  • Japan Airlines
    SEA
    13:30
    41h 10m
    2 transfer
    PNH
    20:40
    Seattle-Tacoma International Airport - Phnom Penh International Airport
    Sun, Apr 28Japan Airlines
    $545
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Seattle (SEA) to Phnom Penh (PNH) the cheapest?

    Airlines adjust prices for flights from Seattle to Phnom Penh based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Seattle (SEA) to Phnom Penh (PNH) cost?

    According to Trip.com's data, the lowest price is around $1,525.
  • What is the transportation method from the main airport to downtown in Phnom Penh?

    • The distance from Phnom Penh International Airport to downtown is about 7km. It takes about 20 minutes by taxi.

Travel Info | Seattle to Phnom Penh

Cheapest nonstop flight price

$640

Off-season for travel

March

Peak season for travel

September