King County Flights - Book Cheap Flights to King County

View RM319 flight on Thu, 14 May 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 RM319 for one-way flights and RM639 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 16 Apr - Mon, 20 Apr
LAX
Los Angeles
SEA
Seattle
RM639 Return, found 4 days ago
RM639
Return
found 4 days ago
Select Delta flight, departing Thu, 16 Apr from Los Angeles to Seattle, returning Mon, 20 Apr, priced at RM639 found 4 days ago
Delta
Thu, 22 Jan - Sun, 25 Jan
LAX
Los Angeles
SEA
Seattle
RM641 Return, found 13 hours ago
RM641
Return
found 13 hours ago
Select Delta flight, departing Thu, 22 Jan from Los Angeles to Seattle, returning Sun, 25 Jan, priced at RM641 found 13 hours ago
Delta
Thu, 22 Jan - Sun, 25 Jan
LAX
Los Angeles
SEA
Seattle
RM796 Return, found 13 hours ago
RM796
Return
found 13 hours ago
Select Delta flight, departing Thu, 22 Jan from Los Angeles to Seattle, returning Sun, 25 Jan, priced at RM796 found 13 hours ago
United
Thu, 22 Jan - Sun, 25 Jan
LAX
Los Angeles
SEA
Seattle
RM845 Return, found 13 hours ago
RM845
Return
found 13 hours ago
Select United flight, departing Thu, 22 Jan from Los Angeles to Seattle, returning Sun, 25 Jan, priced at RM845 found 13 hours ago
Delta
Thu, 22 Jan - Sun, 25 Jan
LAX
Los Angeles
SEA
Seattle
RM862 Return, found 13 hours ago
RM862
Return
found 13 hours ago
Select Delta flight, departing Thu, 22 Jan from Los Angeles to Seattle, returning Sun, 25 Jan, priced at RM862 found 13 hours ago
United
Thu, 22 Jan - Sun, 25 Jan
LAX
Los Angeles
SEA
Seattle
RM867 Return, found 13 hours ago
RM867
Return
found 13 hours ago
Select United flight, departing Thu, 22 Jan from Los Angeles to Seattle, returning Sun, 25 Jan, priced at RM867 found 13 hours ago
United
Thu, 22 Jan - Sun, 25 Jan
LAX
Los Angeles
SEA
Seattle
RM906 Return, found 13 hours ago
RM906
Return
found 13 hours ago
Select United flight, departing Thu, 22 Jan from Los Angeles to Seattle, returning Sun, 25 Jan, priced at RM906 found 13 hours ago
American Airlines
Thu, 22 Jan - Sun, 25 Jan
LAX
Los Angeles
PAE
Seattle
RM966 Return, found 13 hours ago
RM966
Return
found 13 hours ago
Select American Airlines flight, departing Thu, 22 Jan from Los Angeles to Seattle, returning Sun, 25 Jan, priced at RM966 found 13 hours ago
Philippine Airlines
Wed, 25 Mar - Wed, 22 Apr
HND
Tokyo
SEA
Seattle
RM4,716 Return, found 12 hours ago
RM4,716
Return
found 12 hours ago
Select Philippine Airlines flight, departing Wed, 25 Mar from Tokyo to Seattle, returning Wed, 22 Apr, priced at RM4,716 found 12 hours ago
Cathay Pacific
Wed, 27 May - Sun, 7 Jun
HND
Tokyo
SEA
Seattle
RM4,799 Return, found 23 hours ago
RM4,799
Return
found 23 hours ago
Select Cathay Pacific flight, departing Wed, 27 May from Tokyo to Seattle, returning Sun, 7 Jun, priced at RM4,799 found 23 hours ago

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

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 RM639.
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 RM639 and RM4,799. Many lucky travellers nabbed one-way tickets from Las Vegas (LAS) for only RM319.
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 RM639 to RM4,799.
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.

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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