Cheap Flights to King County from ₩112,300

View ₩112,300 flight on Fri, May 15, 2026Opens in a new window

Popular airlines to King County

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Frontier Airlines

  • JetBlue Airways

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How much is the cheapest flight to King County?

Prices were available within the past 7 days and start at ₩112,300 for one-way flights and ₩167,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, May 15 - Sat, May 16
LAX
Los Angeles
SEA
Seattle
₩167,400 Roundtrip, found 5 days ago
₩167,400
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, May 15 from Los Angeles to Seattle, returning Sat, May 16, priced at ₩167,400 found 5 days ago
Hawaiian Airlines
Thu, Apr 16 - Mon, Apr 20
LAX
Los Angeles
SEA
Seattle
₩196,000 Roundtrip, found 6 days ago
₩196,000
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Thu, Apr 16 from Los Angeles to Seattle, returning Mon, Apr 20, priced at ₩196,000 found 6 days ago
Hawaiian Airlines
Thu, Apr 16 - Mon, Apr 20
LAX
Los Angeles
PAE
Seattle
₩238,900 Roundtrip, found 6 days ago
₩238,900
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Thu, Apr 16 from Los Angeles to Seattle, returning Mon, Apr 20, priced at ₩238,900 found 6 days ago
Alaska Airlines
Sun, May 17 - Wed, May 20
LAX
Los Angeles
SEA
Seattle
₩253,000 Roundtrip, found 5 days ago
₩253,000
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sun, May 17 from Los Angeles to Seattle, returning Wed, May 20, priced at ₩253,000 found 5 days ago
United
Thu, Apr 16 - Mon, Apr 20
LAX
Los Angeles
SEA
Seattle
₩267,500 Roundtrip, found 6 days ago
₩267,500
Roundtrip
found 6 days ago
Select United flight, departing Thu, Apr 16 from Los Angeles to Seattle, returning Mon, Apr 20, priced at ₩267,500 found 6 days ago
American Airlines
Thu, Apr 23 - Thu, Apr 30
LAX
Los Angeles
SEA
Seattle
₩302,400 Roundtrip, found 3 days ago
₩302,400
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Apr 23 from Los Angeles to Seattle, returning Thu, Apr 30, priced at ₩302,400 found 3 days ago
Delta
Tue, Aug 25 - Tue, Aug 25
EWR
New York
SEA
Seattle
₩374,000 Roundtrip, found 2 days ago
₩374,000
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Aug 25 from New York to Seattle, returning Tue, Aug 25, priced at ₩374,000 found 2 days ago
Air Canada
Wed, Mar 18 - Thu, Mar 26
YYZ
Toronto
SEA
Seattle
₩402,000 Roundtrip, found 3 days ago
₩402,000
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Mar 18 from Toronto to Seattle, returning Thu, Mar 26, priced at ₩402,000 found 3 days ago
WestJet
Fri, Jul 17 - Tue, Jul 21
YYZ
Toronto
SEA
Seattle
₩513,000 Roundtrip, found 3 days ago
₩513,000
Roundtrip
found 3 days ago
Select WestJet flight, departing Fri, Jul 17 from Toronto to Seattle, returning Tue, Jul 21, priced at ₩513,000 found 3 days ago
Hawaiian Airlines
Wed, Apr 1 - Thu, Apr 9
ICN
Seoul
SEA
Seattle
₩779,200 Roundtrip, found 5 days ago
₩779,200
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Wed, Apr 1 from Seoul to Seattle, returning Thu, Apr 9, priced at ₩779,200 found 5 days ago

Trending flights to King County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Apr 1 - Thu, Apr 9
ICN
Seoul
SEA
Seattle
₩779,200 Roundtrip, found 5 days ago
₩779,200
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Wed, Apr 1 from Seoul to Seattle, returning Thu, Apr 9, priced at ₩779,200 found 5 days ago

Frequently asked questions

How do I find cheap flights to King County that have flexible change policies?
We know that things can change in the blink of an eye, so locking in a flexible ticket with Expedia is always a clever idea. Tick the "No change fee" box underneath the "Flexible change policies" filter. Your low-cost, flexible flight to King County is only a few clicks away.
Which airlines fly to King County?
When you're ready to book your ticket to or near King County, these carriers look forward to welcoming you on board:

  • Alaska Airlines - 8,781 flights to or near King County each month, including 8,781 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • Delta Air Lines - 4,186 flights to or near King County each month, including 4,186 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • United Airlines - 828 flights to or near King County each month, including 828 flights to Seattle - Tacoma Intl. Airport (SEA) per month.

How can I find cheap tickets to King County?
Book in advance, fly in or out of nearby airports, avoid peak travel periods — there are plenty of ways! One more is to take advantage of Expedia's "flexible dates" feature. Search for your King County flight, then compare the prices for nearby dates. In the last seven days, the best price for a flight to King County was ₩167,400.
How much is a flight to King County?
There were plenty of affordable fares for the taking in the last seven days, with the price of a return flight to King County ranging between ₩167,400 and ₩779,200. Many lucky travelers nabbed one-way tickets from Los Angeles (LAX) for only ₩112,300.
What are the most popular airports to fly into in King County?
Depending on which carrier you travel with and departure city, one of these leading airports will be your entry point to King County:

  • Seattle - Tacoma Intl. Airport (SEA) - 15,456 flights per month.
  • Boeing Field Airport (BFI) - 247 flights per month.

When is the cheapest time to fly to King County?
If you'd prefer to spend your money experiencing King County rather than on your flight there, depart early in the week. The most cost-effective day to travel is generally Tuesday, with Monday running a close second. With many folks traveling over the weekend, Saturday often has the highest fares.
How much is a plane ticket to King County?
In the last seven days, plane fares to King County varied from ₩167,400 to ₩779,200.
What is the best time to go to King County?
A terrific time to check out Seattle is after June 20 when summer starts. In King County's most populated city, temperatures range from 55ºF to 75ºF during this time — glorious weather for touring around! March, April and May are the most popular months for tourists.
What months are the cheapest to book a flight to King County?
February is the cheapest month to reserve a seat for your King County adventure. Airfares cost the most over the festive month of December, so steer clear of this time if possible.

Book with confidence

About King County

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About King County

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