King County Flights - Book Cheap Flights to King County

View RM1,496 flight on Mon, 9 Feb 2026Opens in a new window

Popular airlines to King County

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Air Canada

    Air Canada

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Cheap round-trip flights to King County

Prices were available within the past 7 days and start at RM1,496 for one-way flights and RM2,233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, 13 Nov - Thu, 19 Nov
ICN
Seoul
SEA
Seattle
RM2,233 Return, found 6 days ago
RM2,233
Return
found 6 days ago
Select Air Canada flight, departing Fri, 13 Nov from Seoul to Seattle, returning Thu, 19 Nov, priced at RM2,233 found 6 days ago
United
Thu, 12 Mar - Mon, 23 Mar
ICN
Seoul
SEA
Seattle
RM2,320 Return, found 14 hours ago
RM2,320
Return
found 14 hours ago
Select United flight, departing Thu, 12 Mar from Seoul to Seattle, returning Mon, 23 Mar, priced at RM2,320 found 14 hours ago
Philippine Airlines
Mon, 9 Feb - Sun, 22 Feb
HKG
Hong Kong SAR
SEA
Seattle
RM2,434 Return, found 4 days ago
RM2,434
Return
found 4 days ago
Select Philippine Airlines flight, departing Mon, 9 Feb from Hong Kong SAR to Seattle, returning Sun, 22 Feb, priced at RM2,434 found 4 days ago
American Airlines
Wed, 25 Mar - Wed, 22 Apr
ICN
Seoul
SEA
Seattle
RM2,658 Return, found 9 hours ago
RM2,658
Return
found 9 hours ago
Select American Airlines flight, departing Wed, 25 Mar from Seoul to Seattle, returning Wed, 22 Apr, priced at RM2,658 found 9 hours ago
Delta
Mon, 9 Feb - Sun, 22 Feb
HKG
Hong Kong SAR
SEA
Seattle
RM2,823 Return, found 4 days ago
RM2,823
Return
found 4 days ago
Select Delta flight, departing Mon, 9 Feb from Hong Kong SAR to Seattle, returning Sun, 22 Feb, priced at RM2,823 found 4 days ago
STARLUX Airlines
Tue, 26 May - Sun, 7 Jun
HKG
Hong Kong SAR
SEA
Seattle
RM2,997 Return, found 19 hours ago
RM2,997
Return
found 19 hours ago
Select STARLUX Airlines flight, departing Tue, 26 May from Hong Kong SAR to Seattle, returning Sun, 7 Jun, priced at RM2,997 found 19 hours ago
Delta
Mon, 1 Jun - Sat, 6 Jun
ICN
Seoul
SEA
Seattle
RM3,012 Return, found 20 hours ago
RM3,012
Return
found 20 hours ago
Select Delta flight, departing Mon, 1 Jun from Seoul to Seattle, returning Sat, 6 Jun, priced at RM3,012 found 20 hours ago
Korean Air
Wed, 25 Mar - Wed, 22 Apr
ICN
Seoul
SEA
Seattle
RM3,031 Return, found 9 hours ago
RM3,031
Return
found 9 hours ago
Select Korean Air flight, departing Wed, 25 Mar from Seoul to Seattle, returning Wed, 22 Apr, priced at RM3,031 found 9 hours ago
China Airlines
Tue, 24 Feb - Mon, 30 Mar
HKG
Hong Kong SAR
SEA
Seattle
RM3,063 Return, found 4 days ago
RM3,063
Return
found 4 days ago
Select China Airlines flight, departing Tue, 24 Feb from Hong Kong SAR to Seattle, returning Mon, 30 Mar, priced at RM3,063 found 4 days ago
United
Thu, 15 Jan - Fri, 6 Feb
SIN
Singapore
SEA
Seattle
RM3,160 Return, found 2 days ago
RM3,160
Return
found 2 days ago
Select United flight, departing Thu, 15 Jan from Singapore to Seattle, returning Fri, 6 Feb, priced at RM3,160 found 2 days ago

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.

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 RM2,233.
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 RM2,233 and RM3,753. Many lucky travellers nabbed one-way tickets from Hong Kong SAR (HKG) for only RM1,496.
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.

How much is a plane ticket to King County?
In the last seven days, plane fares to King County varied from RM2,233 to RM3,753.
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 13ºC to 24ºC 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.

Trending flights to King County

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

Singapore Airlines
Thu, 23 Apr - Tue, 5 May
KUL
Kuala Lumpur
SEA
Seattle
RM3,753 Return, found 5 days ago
RM3,753
Return
found 5 days ago
Select Singapore Airlines flight, departing Thu, 23 Apr from Kuala Lumpur to Seattle, returning Tue, 5 May, priced at RM3,753 found 5 days ago
*Available to Expedia members.