Cheap Flights to Northwest Washington

View ₩735,700 flight on Thu, Dec 18, 2025Opens in a new window

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How much is the cheapest flight to Northwest Washington?

Prices were available within the past 7 days and start at ₩735,700 for one-way flights and ₩700,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sat, Nov 1 - Fri, Nov 7
ICN
Seoul
SEA
Seattle
₩700,500 Roundtrip, just found
₩700,500
Roundtrip
just found
Select Hawaiian Airlines flight, departing Sat, Nov 1 from Seoul to Seattle, returning Fri, Nov 7, priced at ₩700,500 just found
United
Wed, Nov 19 - Wed, Nov 26
ICN
Seoul
SEA
Seattle
₩746,100 Roundtrip, just found
₩746,100
Roundtrip
just found
Select United flight, departing Wed, Nov 19 from Seoul to Seattle, returning Wed, Nov 26, priced at ₩746,100 just found
Alaska Airlines
Wed, Oct 15 - Thu, Oct 16
ICN
Seoul
SEA
Seattle
₩761,600 Roundtrip, found 18 hours ago
₩761,600
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Wed, Oct 15 from Seoul to Seattle, returning Thu, Oct 16, priced at ₩761,600 found 18 hours ago
Air Canada
Wed, Feb 25 - Fri, Feb 27
ICN
Seoul
SEA
Seattle
₩814,100 Roundtrip, found 1 hour ago
₩814,100
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Wed, Feb 25 from Seoul to Seattle, returning Fri, Feb 27, priced at ₩814,100 found 1 hour ago
Korean Air
Sun, Nov 2 - Thu, Nov 27
ICN
Seoul
SEA
Seattle
₩816,000 Roundtrip, found 6 days ago
₩816,000
Roundtrip
found 6 days ago
Select Korean Air flight, departing Sun, Nov 2 from Seoul to Seattle, returning Thu, Nov 27, priced at ₩816,000 found 6 days ago

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 ₩700,500. 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 ₩735,700 in the last seven days. During this time, the price of a return journey to Northwest Washington varied between ₩700,500 and ₩829,000. 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 ₩700,500 and ₩829,000. 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
₩700,500

Trending flights to Northwest Washington

Prices were available within the past 7 days and start at ₩735,700 for one-way flights and ₩700,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sat, Nov 1 - Fri, Nov 7
ICN
Seoul
SEA
Seattle
₩700,500 Roundtrip, just found
₩700,500
Roundtrip
just found
Select Hawaiian Airlines flight, departing Sat, Nov 1 from Seoul to Seattle, returning Fri, Nov 7, priced at ₩700,500 just found
*Available to Expedia members.