Flight Destinations in King County

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

  • JetBlue Airways

    JetBlue Airways

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Top Cities to Visit in King County

FlightsFlights

Seattle

Seattle

Cheap round-trip flights to King County

Prices were available within the past 7 days and start at ฿2,000 for one-way flights and ฿3,545 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 9 Oct - Thu, 16 Oct
SFO
San Francisco
SEA
Seattle
฿3,545 Return, found 6 days ago
฿3,545
Return
found 6 days ago
Select Delta flight, departing Thu, 9 Oct from San Francisco to Seattle, returning Thu, 16 Oct, priced at ฿3,545 found 6 days ago
American Airlines
Sat, 6 Sep - Tue, 9 Sep
SFO
San Francisco
SEA
Seattle
฿6,820 Return, found 3 days ago
฿6,820
Return
found 3 days ago
Select American Airlines flight, departing Sat, 6 Sep from San Francisco to Seattle, returning Tue, 9 Sep, priced at ฿6,820 found 3 days ago
Delta
Sat, 13 Sep - Sun, 14 Sep
LAX
Los Angeles
SEA
Seattle
฿7,070 Return, found 14 hours ago
฿7,070
Return
found 14 hours ago
Select Delta flight, departing Sat, 13 Sep from Los Angeles to Seattle, returning Sun, 14 Sep, priced at ฿7,070 found 14 hours ago
United
Sat, 13 Sep - Sun, 14 Sep
LAX
Los Angeles
SEA
Seattle
฿8,045 Return, found 14 hours ago
฿8,045
Return
found 14 hours ago
Select United flight, departing Sat, 13 Sep from Los Angeles to Seattle, returning Sun, 14 Sep, priced at ฿8,045 found 14 hours ago
American Airlines
Wed, 17 Sep - Wed, 24 Sep
SFO
San Francisco
PAE
Seattle
฿9,460 Return, found 5 days ago
฿9,460
Return
found 5 days ago
Select American Airlines flight, departing Wed, 17 Sep from San Francisco to Seattle, returning Wed, 24 Sep, priced at ฿9,460 found 5 days ago
United
Wed, 27 Aug - Sun, 31 Aug
RNO
Reno
SEA
Seattle
฿9,500 Return, found 23 hours ago
฿9,500
Return
found 23 hours ago
Select United flight, departing Wed, 27 Aug from Reno to Seattle, returning Sun, 31 Aug, priced at ฿9,500 found 23 hours ago
Alaska Airlines
Sat, 6 Sep - Sun, 7 Sep
LAX
Los Angeles
PAE
Seattle
฿11,105 Return, found 2 days ago
฿11,105
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 6 Sep from Los Angeles to Seattle, returning Sun, 7 Sep, priced at ฿11,105 found 2 days ago
Philippine Airlines
Thu, 29 Jan - Thu, 26 Feb
BKK
Bangkok
SEA
Seattle
฿20,335 Return, found 9 hours ago
฿20,335
Return
found 9 hours ago
Select Philippine Airlines flight, departing Thu, 29 Jan from Bangkok to Seattle, returning Thu, 26 Feb, priced at ฿20,335 found 9 hours ago
STARLUX Airlines
Thu, 20 Nov - Thu, 11 Dec
CNX
Chiang Mai
SEA
Seattle
฿23,562 Return, found 2 hours ago
฿23,562
Return
found 2 hours ago
Select STARLUX Airlines flight, departing Thu, 20 Nov from Chiang Mai to Seattle, returning Thu, 11 Dec, priced at ฿23,562 found 2 hours ago
Korean Air
Fri, 24 Oct - Fri, 31 Oct
BKK
Bangkok
SEA
Seattle
฿26,138 Return, found 8 hours ago
฿26,138
Return
found 8 hours ago
Select Korean Air flight, departing Fri, 24 Oct from Bangkok to Seattle, returning Fri, 31 Oct, priced at ฿26,138 found 8 hours ago

About King County

Expedia offers flights to King County to meet every traveller'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 ฿3,545.
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 ฿3,545 and ฿26,138. Many lucky travellers nabbed one-way tickets from San Francisco (SFO) for only ฿2,000.
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.

How much is a plane ticket to King County?
In the last seven days, plane fares to King County varied from ฿3,545 to ฿26,138.
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
Thu, 29 Jan - Thu, 26 Feb
BKK
Bangkok
SEA
Seattle
฿20,335 Return, found 9 hours ago
฿20,335
Return
found 9 hours ago
Select Philippine Airlines flight, departing Thu, 29 Jan from Bangkok to Seattle, returning Thu, 26 Feb, priced at ฿20,335 found 9 hours ago
*Available to Expedia members.