Cheap Flights to King County from ₩103,000

View ₩103,000 flight on Tue, Sep 22, 2026Opens in a new window

Popular airlines to King County

  • Alaska Airlines

  • American Airlines

  • Delta

  • 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 ₩103,000 for one-way flights and ₩358,600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Aug 20 - Sun, Aug 23
LAX
Los Angeles
SEA
Seattle
₩358,600 Roundtrip, found 3 days ago
₩358,600
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Aug 20 from Los Angeles to Seattle, returning Sun, Aug 23, priced at ₩358,600 found 3 days ago
United
Tue, Jul 7 - Sun, Jul 12
LAX
Los Angeles
SEA
Seattle
₩373,300 Roundtrip, found 4 days ago
₩373,300
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jul 7 from Los Angeles to Seattle, returning Sun, Jul 12, priced at ₩373,300 found 4 days ago
Delta
Sat, Jul 25 - Wed, Jul 29
SFO
San Francisco
SEA
Seattle
₩394,700 Roundtrip, found 3 days ago
₩394,700
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Jul 25 from San Francisco to Seattle, returning Wed, Jul 29, priced at ₩394,700 found 3 days ago
American Airlines
Sat, Jul 25 - Wed, Jul 29
SFO
San Francisco
SEA
Seattle
₩511,600 Roundtrip, found 3 days ago
₩511,600
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Jul 25 from San Francisco to Seattle, returning Wed, Jul 29, priced at ₩511,600 found 3 days ago
American Airlines
Sat, Jul 25 - Wed, Jul 29
SFO
San Francisco
PAE
Seattle
₩520,700 Roundtrip, found 3 days ago
₩520,700
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Jul 25 from San Francisco to Seattle, returning Wed, Jul 29, priced at ₩520,700 found 3 days ago
Delta
Tue, Sep 8 - Thu, Sep 10
DFW
Dallas
SEA
Seattle
₩596,100 Roundtrip, found 6 days ago
₩596,100
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Sep 8 from Dallas to Seattle, returning Thu, Sep 10, priced at ₩596,100 found 6 days ago
American Airlines
Thu, Aug 20 - Sun, Aug 23
LAX
Los Angeles
PAE
Seattle
₩615,700 Roundtrip, found 3 days ago
₩615,700
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Aug 20 from Los Angeles to Seattle, returning Sun, Aug 23, priced at ₩615,700 found 3 days ago
Delta
Sat, Aug 29 - Wed, Sep 2
DAL
Dallas
SEA
Seattle
₩675,600 Roundtrip, found 18 hours ago
₩675,600
Roundtrip
found 18 hours ago
Select Delta flight, departing Sat, Aug 29 from Dallas to Seattle, returning Wed, Sep 2, priced at ₩675,600 found 18 hours ago
Singapore Airlines
Sat, Mar 13 - Sun, Mar 21
ICN
Seoul
SEA
Seattle
₩1,507,500 Roundtrip, found 5 days ago
₩1,507,500
Roundtrip
found 5 days ago
Select Singapore Airlines flight, departing Sat, Mar 13 from Seoul to Seattle, returning Sun, Mar 21, priced at ₩1,507,500 found 5 days ago
Philippine Airlines
Tue, Oct 6 - Tue, Oct 20
ICN
Seoul
SEA
Seattle
₩1,508,100 Roundtrip, found 1 day ago
₩1,508,100
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Tue, Oct 6 from Seoul to Seattle, returning Tue, Oct 20, priced at ₩1,508,100 found 1 day ago
Book with confidence

About King County

Expedia offers flights to King County to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to King County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

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.

United
Mon, Jun 8 - Tue, Jul 7
ICN
Seoul
SEA
Seattle
₩1,374,800 Roundtrip, found 2 days ago
₩1,374,800
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jun 8 from Seoul to Seattle, returning Tue, Jul 7, priced at ₩1,374,800 found 2 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 ₩358,600.
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 ₩358,600 and ₩1,508,100. Many lucky travelers nabbed one-way tickets from San Francisco (SFO) for only ₩103,000.
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 ₩358,600 to ₩1,508,100.
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

Expedia offers flights to King County to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to King County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About King County
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