Cheap Flights to King County from ₩101,100

View ₩101,100 flight on Wed, May 13, 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 ₩101,100 for one-way flights and ₩202,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, May 15 - Wed, May 27
LAX
Los Angeles
SEA
Seattle
₩202,000 Roundtrip, found 23 hours ago
₩202,000
Roundtrip
found 23 hours ago
Select Delta flight, departing Fri, May 15 from Los Angeles to Seattle, returning Wed, May 27, priced at ₩202,000 found 23 hours ago
United
Fri, May 15 - Wed, May 27
LAX
Los Angeles
SEA
Seattle
₩342,000 Roundtrip, found 23 hours ago
₩342,000
Roundtrip
found 23 hours ago
Select United flight, departing Fri, May 15 from Los Angeles to Seattle, returning Wed, May 27, priced at ₩342,000 found 23 hours ago
Delta
Wed, Jul 29 - Mon, Aug 3
TUS
Tucson
SEA
Seattle
₩371,500 Roundtrip, found 21 hours ago
₩371,500
Roundtrip
found 21 hours ago
Select Delta flight, departing Wed, Jul 29 from Tucson to Seattle, returning Mon, Aug 3, priced at ₩371,500 found 21 hours ago
American Airlines
Fri, May 15 - Tue, May 26
LAX
Los Angeles
SEA
Seattle
₩406,800 Roundtrip, found 2 days ago
₩406,800
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, May 15 from Los Angeles to Seattle, returning Tue, May 26, priced at ₩406,800 found 2 days ago
American Airlines
Sat, May 30 - Sat, Jun 6
LAX
Los Angeles
PAE
Seattle
₩436,200 Roundtrip, found 1 day ago
₩436,200
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, May 30 from Los Angeles to Seattle, returning Sat, Jun 6, priced at ₩436,200 found 1 day ago
Alaska Airlines
Wed, Jul 15 - Wed, Jul 15
LAX
Los Angeles
SEA
Seattle
₩486,400 Roundtrip, found 2 days ago
₩486,400
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jul 15 from Los Angeles to Seattle, returning Wed, Jul 15, priced at ₩486,400 found 2 days ago
American Airlines
Wed, Jul 29 - Mon, Aug 3
TUS
Tucson
PAE
Seattle
₩886,900 Roundtrip, found 21 hours ago
₩886,900
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Wed, Jul 29 from Tucson to Seattle, returning Mon, Aug 3, priced at ₩886,900 found 21 hours ago
Korean Air
Fri, Nov 6 - Sat, Nov 7
PEK
Beijing
SEA
Seattle
₩1,089,900 Roundtrip, found 3 days ago
₩1,089,900
Roundtrip
found 3 days ago
Select Korean Air flight, departing Fri, Nov 6 from Beijing to Seattle, returning Sat, Nov 7, priced at ₩1,089,900 found 3 days ago
Delta
Sun, Sep 20 - Mon, Sep 28
HKG
Hong Kong SAR
SEA
Seattle
₩1,122,900 Roundtrip, found 2 days ago
₩1,122,900
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Sep 20 from Hong Kong SAR to Seattle, returning Mon, Sep 28, priced at ₩1,122,900 found 2 days ago
China Airlines
Tue, Sep 15 - Tue, Sep 22
MNL
Manila
SEA
Seattle
₩1,242,400 Roundtrip, found 19 hours ago
₩1,242,400
Roundtrip
found 19 hours ago
Select China Airlines flight, departing Tue, Sep 15 from Manila to Seattle, returning Tue, Sep 22, priced at ₩1,242,400 found 19 hours 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.

Air Canada
Mon, Sep 28 - Sat, Oct 17
ICN
Seoul
SEA
Seattle
₩1,180,800 Roundtrip, found 16 hours ago
₩1,180,800
Roundtrip
found 16 hours ago
Select Air Canada flight, departing Mon, Sep 28 from Seoul to Seattle, returning Sat, Oct 17, priced at ₩1,180,800 found 16 hours 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 ₩202,000.
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 ₩202,000 and ₩1,242,400. Many lucky travelers nabbed one-way tickets from Los Angeles (LAX) for only ₩101,100.
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 ₩202,000 to ₩1,242,400.
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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