Cheap flights to 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

  • Air Canada

    Air Canada

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Popular cities in King County

FlightsFlights

Seattle

Seattle

Cheap round-trip flights to King County

Prices were available within the past 7 days and start at €51 for one-way flights and €102 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 4 Dec - Mon, 8 Dec
SFO
San Francisco
SEA
Seattle
€102 Return, found 8 hours ago
€102
Return
found 8 hours ago
Select Delta flight, departing Thu, 4 Dec from San Francisco to Seattle, returning Mon, 8 Dec, priced at €102 found 8 hours ago
Delta
Mon, 8 Dec - Thu, 11 Dec
PHX
Phoenix
SEA
Seattle
€102 Return, found 3 days ago
€102
Return
found 3 days ago
Select Delta flight, departing Mon, 8 Dec from Phoenix to Seattle, returning Thu, 11 Dec, priced at €102 found 3 days ago
Delta
Thu, 4 Dec - Mon, 8 Dec
SFO
San Francisco
SEA
Seattle
€111 Return, found 8 hours ago
€111
Return
found 8 hours ago
Select Delta flight, departing Thu, 4 Dec from San Francisco to Seattle, returning Mon, 8 Dec, priced at €111 found 8 hours ago
Delta
Thu, 22 Jan - Wed, 28 Jan
LAS
Las Vegas
SEA
Seattle
€112 Return, found 6 days ago
€112
Return
found 6 days ago
Select Delta flight, departing Thu, 22 Jan from Las Vegas to Seattle, returning Wed, 28 Jan, priced at €112 found 6 days ago
American Airlines
Thu, 22 Jan - Wed, 28 Jan
LAS
Las Vegas
SEA
Seattle
€137 Return, found 6 days ago
€137
Return
found 6 days ago
Select American Airlines flight, departing Thu, 22 Jan from Las Vegas to Seattle, returning Wed, 28 Jan, priced at €137 found 6 days ago
Delta
Sat, 6 Dec - Sun, 7 Dec
LAX
Los Angeles
SEA
Seattle
€145 Return, found 1 day ago
€145
Return
found 1 day ago
Select Delta flight, departing Sat, 6 Dec from Los Angeles to Seattle, returning Sun, 7 Dec, priced at €145 found 1 day ago
United
Thu, 4 Dec - Mon, 8 Dec
SFO
San Francisco
SEA
Seattle
€186 Return, found 8 hours ago
€186
Return
found 8 hours ago
Select United flight, departing Thu, 4 Dec from San Francisco to Seattle, returning Mon, 8 Dec, priced at €186 found 8 hours ago
American Airlines
Mon, 8 Dec - Thu, 11 Dec
PHX
Phoenix
PAE
Seattle
€267 Return, found 3 days ago
€267
Return
found 3 days ago
Select American Airlines flight, departing Mon, 8 Dec from Phoenix to Seattle, returning Thu, 11 Dec, priced at €267 found 3 days ago
Icelandair
Mon, 16 Feb - Fri, 20 Feb
DUB
Dublin
SEA
Seattle
€428 Return, found 2 hours ago
€428
Return
found 2 hours ago
Select Icelandair flight, departing Mon, 16 Feb from Dublin to Seattle, returning Fri, 20 Feb, priced at €428 found 2 hours ago
British Airways
Sat, 14 Mar - Sat, 21 Mar
DUB
Dublin
SEA
Seattle
€429 Return, found 1 hour ago
€429
Return
found 1 hour ago
Select British Airways flight, departing Sat, 14 Mar from Dublin to Seattle, returning Sat, 21 Mar, priced at €429 found 1 hour 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.

American Airlines
Sat, 14 Mar - Sat, 21 Mar
DUB
Dublin
SEA
Seattle
€426 Return, found 1 hour ago
€426
Return
found 1 hour ago
Select American Airlines flight, departing Sat, 14 Mar from Dublin to Seattle, returning Sat, 21 Mar, priced at €426 found 1 hour 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 €102.
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 €102 and €429. Many lucky travellers nabbed one-way tickets from Las Vegas (LAS) for only €51.
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 €102 to €429.
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 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.
About King County

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