Cheap Flights to Northwest Washington

View ₩560,800 flight on Mon, Nov 3, 2025Opens in a new window

Popular airlines

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • Hawaiian Airlines

    Hawaiian Airlines

  • Japan Airlines

    Japan Airlines

  • Qatar Airways

    Qatar Airways

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Northwest Washington?

Prices were available within the past 7 days and start at ₩560,800 for one-way flights and ₩607,600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Thu, Oct 30 - Fri, Nov 7
ICN
Seoul
SEA
Seattle
₩607,600 Roundtrip, found 4 days ago
₩607,600
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Thu, Oct 30 from Seoul to Seattle, returning Fri, Nov 7, priced at ₩607,600 found 4 days ago
Korean Air
Thu, Oct 30 - Mon, Nov 10
ICN
Seoul
SEA
Seattle
₩629,100 Roundtrip, found 2 hours ago
₩629,100
Roundtrip
found 2 hours ago
Select Korean Air flight, departing Thu, Oct 30 from Seoul to Seattle, returning Mon, Nov 10, priced at ₩629,100 found 2 hours ago
Alaska Airlines
Fri, Oct 31 - Mon, Nov 10
ICN
Seoul
SEA
Seattle
₩632,400 Roundtrip, found 2 hours ago
₩632,400
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Fri, Oct 31 from Seoul to Seattle, returning Mon, Nov 10, priced at ₩632,400 found 2 hours ago
United
Fri, Oct 31 - Sun, Nov 23
ICN
Seoul
SEA
Seattle
₩637,200 Roundtrip, found 3 hours ago
₩637,200
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Oct 31 from Seoul to Seattle, returning Sun, Nov 23, priced at ₩637,200 found 3 hours ago
Delta
Fri, Oct 31 - Sun, Nov 9
ICN
Seoul
SEA
Seattle
₩679,100 Roundtrip, just found
₩679,100
Roundtrip
just found
Select Delta flight, departing Fri, Oct 31 from Seoul to Seattle, returning Sun, Nov 9, priced at ₩679,100 just found

Searching for cheap flights to Northwest Washington? No travel company presents more choices than Expedia if you're looking to compare flights to Northwest Washington. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Washington. Expedia provides the cheapest flights to many destinations in Washington and you may find even greater savings if you combine your flight with a hotel stay in Northwest Washington.

Frequently asked questions

How do I find cheap flights to Northwest Washington that have flexible change policies?
By using our smart "No change fee" filter, that's how. Just enter your dates and other details, click the "Search" button, then check the box under the "Flexible change policies" heading (top left-hand side of your screen). Expedia makes it a snap to find flexible, low-cost airfares to Northwest Washington.
Which airlines fly to Northwest Washington?
A good range of airlines fly to airports in or close to Northwest Washington. Your next great adventure is only a few clicks away with these carriers:

  • Alaska Airlines - 9,327 flights to or near Northwest Washington each month, including 8,781 flights to Seattle - Tacoma Intl. Airport (SEA) and 407 flights to Snohomish County - Paine Field Airport (PAE) per month.
  • Delta Air Lines - 4,407 flights to or near Northwest Washington each month, including 4,186 flights to Seattle - Tacoma Intl. Airport (SEA) and 221 flights to Vancouver Intl. Airport (YVR) per month.
  • United Airlines - 1,279 flights to or near Northwest Washington each month, including 828 flights to Seattle - Tacoma Intl. Airport (SEA) and 450 flights to Vancouver Intl. Airport (YVR) per month.

How can I find cheap tickets to Northwest Washington?
One of the easiest ways to get a hold of cheap tickets to Northwest Washington is to be flexible with your dates. Search for your flights, then click "flexible dates" above the results. It will bring up the cheapest prices for nearby days. The lowest price for a flight to Northwest Washington in the last seven days was ₩607,600. Booking ahead of time will generally help you get an even bigger bargain.
How much is a flight to Northwest Washington?
One-way flights taking off from Seoul (ICN) sold for as little as ₩560,800 in the last seven days. During this time, the price of a return journey to Northwest Washington varied between ₩607,600 and ₩679,100. If you spot a bargain ticket, book immediately — these prices don't wait around for long.
What are the most popular airports to fly into in Northwest Washington?
Which airport you fly into in Northwest Washington will depend on where you begin your journey and your final destination. Here's a list of the most popular airports in this region:

  • Seattle - Tacoma Intl. Airport (SEA) - 15,456 flights per month.
  • Vancouver Intl. Airport (YVR) - 2,212 flights per month.
  • Snohomish County - Paine Field Airport (PAE) - 438 flights per month.

When is the cheapest time to fly to Northwest Washington?
If you're not fixed on what day you travel to Northwest Washington, fly out early in the week. The most affordable day to take off is usually Tuesday, followed by Monday. Saturday is typically the costliest day, with many vacationers preferring to take off on the weekend.
How much is a plane ticket to Northwest Washington?
In the last seven days, plane tickets to Northwest Washington fluctuated between ₩607,600 and ₩679,100. Prices rise as your travel date nears, so find a bargain today.
What months are the cheapest to book a flight to Northwest Washington?
February is the most affordable month to secure a seat for your Northwest Washington vacation. Airfares cost the most during the busy month of December, so keep clear of this time if possible.
Flights to Northwest Washington information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Roundtrip price
₩607,600

Trending flights to Northwest Washington

Prices were available within the past 7 days and start at ₩560,800 for one-way flights and ₩607,600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Thu, Oct 30 - Fri, Nov 7
ICN
Seoul
SEA
Seattle
₩607,600 Roundtrip, found 4 days ago
₩607,600
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Thu, Oct 30 from Seoul to Seattle, returning Fri, Nov 7, priced at ₩607,600 found 4 days ago
*Available to Expedia members.