King County Flights - Book Cheap Flights to King County

View RM441 flight on Sat, 21 Mar 2026Opens in a new window

Popular airlines to King County

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Frontier Airlines

  • Air Canada

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Cheap round-trip flights to King County

Prices were available within the past 7 days and start at RM441 for one-way flights and RM906 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 16 Apr - Sat, 18 Apr
DFW
Dallas
SEA
Seattle
RM906 Return, found 14 hours ago
RM906
Return
found 14 hours ago
Select Delta flight, departing Thu, 16 Apr from Dallas to Seattle, returning Sat, 18 Apr, priced at RM906 found 14 hours ago
Delta
Thu, 16 Apr - Sat, 18 Apr
DFW
Dallas
SEA
Seattle
RM929 Return, found 14 hours ago
RM929
Return
found 14 hours ago
Select Delta flight, departing Thu, 16 Apr from Dallas to Seattle, returning Sat, 18 Apr, priced at RM929 found 14 hours ago
American Airlines
Thu, 16 Apr - Sat, 18 Apr
DFW
Dallas
SEA
Seattle
RM1,080 Return, found 14 hours ago
RM1,080
Return
found 14 hours ago
Select American Airlines flight, departing Thu, 16 Apr from Dallas to Seattle, returning Sat, 18 Apr, priced at RM1,080 found 14 hours ago
United
Thu, 16 Apr - Sat, 18 Apr
DFW
Dallas
SEA
Seattle
RM1,358 Return, found 14 hours ago
RM1,358
Return
found 14 hours ago
Select United flight, departing Thu, 16 Apr from Dallas to Seattle, returning Sat, 18 Apr, priced at RM1,358 found 14 hours ago
Delta
Sun, 5 Apr - Thu, 9 Apr
DAL
Dallas
SEA
Seattle
RM2,414 Return, found 15 hours ago
RM2,414
Return
found 15 hours ago
Select Delta flight, departing Sun, 5 Apr from Dallas to Seattle, returning Thu, 9 Apr, priced at RM2,414 found 15 hours ago
American Airlines
Mon, 16 Mar - Mon, 23 Mar
DFW
Dallas
PAE
Seattle
RM2,429 Return, found 11 hours ago
RM2,429
Return
found 11 hours ago
Select American Airlines flight, departing Mon, 16 Mar from Dallas to Seattle, returning Mon, 23 Mar, priced at RM2,429 found 11 hours ago
Philippine Airlines
Wed, 9 Sept - Wed, 23 Sept
KUL
Kuala Lumpur
SEA
Seattle
RM2,937 Return, found 3 days ago
RM2,937
Return
found 3 days ago
Select Philippine Airlines flight, departing Wed, 9 Sept from Kuala Lumpur to Seattle, returning Wed, 23 Sept, priced at RM2,937 found 3 days ago
United
Tue, 1 Sept - Mon, 14 Sept
SIN
Singapore
SEA
Seattle
RM2,959 Return, found 6 days ago
RM2,959
Return
found 6 days ago
Select United flight, departing Tue, 1 Sept from Singapore to Seattle, returning Mon, 14 Sept, priced at RM2,959 found 6 days ago
Cathay Pacific
Fri, 24 Apr - Mon, 4 May
SIN
Singapore
SEA
Seattle
RM3,097 Return, found 6 days ago
RM3,097
Return
found 6 days ago
Select Cathay Pacific flight, departing Fri, 24 Apr from Singapore to Seattle, returning Mon, 4 May, priced at RM3,097 found 6 days ago
STARLUX Airlines
Thu, 10 Dec - Mon, 4 Jan
SIN
Singapore
SEA
Seattle
RM3,280 Return, found 18 hours ago
RM3,280
Return
found 18 hours ago
Select STARLUX Airlines flight, departing Thu, 10 Dec from Singapore to Seattle, returning Mon, 4 Jan, priced at RM3,280 found 18 hours 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 RM906.
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 RM906 and RM3,280. Many lucky travellers nabbed one-way tickets from Dallas (DFW) for only RM441.
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 RM906 to RM3,280.
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.

Philippine Airlines
Wed, 9 Sept - Wed, 23 Sept
KUL
Kuala Lumpur
SEA
Seattle
RM2,937 Return, found 3 days ago
RM2,937
Return
found 3 days ago
Select Philippine Airlines flight, departing Wed, 9 Sept from Kuala Lumpur to Seattle, returning Wed, 23 Sept, priced at RM2,937 found 3 days ago
*Available to Expedia members.