Cheap Flights to King County

View AU$98 flight on Tue, 9 June 2026Opens in a new window

Popular airlines to King County

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Frontier Airlines

  • JetBlue Airways

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Cheapest Flights to King County

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

Frontier Airlines
Thu, 4 June - Wed, 17 June
LAS
Las Vegas
SEA
Seattle
AU$156 Return, found 6 days ago
AU$156
Return
found 6 days ago
Select Frontier Airlines flight, departing Thu, 4 June from Las Vegas to Seattle, returning Wed, 17 June, priced at AU$156 found 6 days ago
Delta
Mon, 4 May - Tue, 12 May
SFO
San Francisco
SEA
Seattle
AU$207 Return, found 6 days ago
AU$207
Return
found 6 days ago
Select Delta flight, departing Mon, 4 May from San Francisco to Seattle, returning Tue, 12 May, priced at AU$207 found 6 days ago
Alaska Airlines
Fri, 17 Apr - Sun, 3 May
LAS
Las Vegas
PAE
Seattle
AU$255 Return, found 6 days ago
AU$255
Return
found 6 days ago
Select Alaska Airlines flight, departing Fri, 17 Apr from Las Vegas to Seattle, returning Sun, 3 May, priced at AU$255 found 6 days ago
Alaska Airlines
Wed, 6 May - Sat, 16 May
LAX
Los Angeles
SEA
Seattle
AU$257 Return, found 2 days ago
AU$257
Return
found 2 days ago
Select Alaska Airlines flight, departing Wed, 6 May from Los Angeles to Seattle, returning Sat, 16 May, priced at AU$257 found 2 days ago
Alaska Airlines
Tue, 5 May - Tue, 19 May
LAX
Los Angeles
PAE
Seattle
AU$257 Return, found 2 days ago
AU$257
Return
found 2 days ago
Select Alaska Airlines flight, departing Tue, 5 May from Los Angeles to Seattle, returning Tue, 19 May, priced at AU$257 found 2 days ago
American Airlines
Thu, 7 May - Wed, 20 May
LAX
Los Angeles
SEA
Seattle
AU$270 Return, found 5 days ago
AU$270
Return
found 5 days ago
Select American Airlines flight, departing Thu, 7 May from Los Angeles to Seattle, returning Wed, 20 May, priced at AU$270 found 5 days ago
Alaska Airlines
Tue, 21 Apr - Tue, 5 May
SFO
San Francisco
PAE
Seattle
AU$300 Return, found 2 days ago
AU$300
Return
found 2 days ago
Select Alaska Airlines flight, departing Tue, 21 Apr from San Francisco to Seattle, returning Tue, 5 May, priced at AU$300 found 2 days ago
United
Thu, 19 Nov - Sat, 5 Dec
LAX
Los Angeles
SEA
Seattle
AU$358 Return, found 2 days ago
AU$358
Return
found 2 days ago
Select United flight, departing Thu, 19 Nov from Los Angeles to Seattle, returning Sat, 5 Dec, priced at AU$358 found 2 days ago
Alaska Airlines
Fri, 10 July - Sat, 18 July
SLC
Salt Lake City
SEA
Seattle
AU$425 Return, found 6 days ago
AU$425
Return
found 6 days ago
Select Alaska Airlines flight, departing Fri, 10 July from Salt Lake City to Seattle, returning Sat, 18 July, priced at AU$425 found 6 days ago
Hawaiian Airlines
Tue, 7 Apr - Sat, 18 Apr
LAS
Las Vegas
PAE
Seattle
AU$442 Return, found 5 days ago
AU$442
Return
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, 7 Apr from Las Vegas to Seattle, returning Sat, 18 Apr, priced at AU$442 found 5 days 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.

Air Canada
Thu, 19 Nov - Mon, 30 Nov
MEL
Melbourne
SEA
Seattle
AU$1,295 Return, found 2 days ago
AU$1,295
Return
found 2 days ago
Select Air Canada flight, departing Thu, 19 Nov from Melbourne to Seattle, returning Mon, 30 Nov, priced at AU$1,295 found 2 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 AU$156.
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 AU$156 and AU$1,295. Many lucky travellers nabbed one-way tickets from San Francisco (SFO) for only AU$98.
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.

When is the cheapest time to fly to King County?
If you'd prefer to spend your money experiencing King County rather than on your flight there, depart early in the week. The most cost-effective day to travel is generally Tuesday, with Monday running a close second. With many folks travelling over the weekend, Saturday often has the highest fares.
How much is a plane ticket to King County?
In the last seven days, plane fares to King County varied from AU$156 to AU$1,295.
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

King County Flights

When was the last time you embarked on a grand adventure? Whether it was last month or years ago, there’s never been a better time to start planning your next big trip. Book tickets to King County today and get ready to build your travel itinerary, from exploring the area with your family to recharging in the change of scenery. During your stay, visit the must-see attractions, chow down on the local cuisine, and relish in a holiday state of mind. However you decide to spend your upcoming trip, we’re here to make your travel plans easy and affordable.

Book Your King County Airfare

At Expedia.com.au, it’s simple to find cheap flights to King County that won’t cause your wallet to flinch. Browse through our inventory of King County flights and find airfare matching your preferred times and dates. Looking for a red-eye flight or an afternoon departure? Don’t worry, we’ve got you covered. You can even take advantage of our convenient My Scratchpad online feature, which lets you track your search results with ease. No more excuses; book your travel arrangements with us today to make your dream trip a reality.

King County Flights

Travel information

King County Flights Information

Airlines serving
Delta, Alaska Airlines, Hawaiian Airlines, American Airlines, United, Frontier Airlines
Roundtrip price
from AU$156
King County Flights Information

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