Cheap Flights to King County

View AU$796 flight on Sun, 7 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.

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
United
Tue, 11 Aug - Mon, 24 Aug
MEL
Melbourne
SEA
Seattle
AU$1,305 Return, found 4 days ago
AU$1,305
Return
found 4 days ago
Select United flight, departing Tue, 11 Aug from Melbourne to Seattle, returning Mon, 24 Aug, priced at AU$1,305 found 4 days ago
Delta
Wed, 29 Apr - Wed, 3 June
MEL
Melbourne
SEA
Seattle
AU$1,315 Return, found 6 days ago
AU$1,315
Return
found 6 days ago
Select Delta flight, departing Wed, 29 Apr from Melbourne to Seattle, returning Wed, 3 June, priced at AU$1,315 found 6 days ago
Air Canada
Tue, 9 June - Sat, 20 June
BNE
Brisbane
SEA
Seattle
AU$1,365 Return, found 4 days ago
AU$1,365
Return
found 4 days ago
Select Air Canada flight, departing Tue, 9 June from Brisbane to Seattle, returning Sat, 20 June, priced at AU$1,365 found 4 days ago
Asiana Airlines
Tue, 17 Nov - Wed, 2 Dec
SYD
Sydney
SEA
Seattle
AU$1,473 Return, found 19 hours ago
AU$1,473
Return
found 19 hours ago
Select Asiana Airlines flight, departing Tue, 17 Nov from Sydney to Seattle, returning Wed, 2 Dec, priced at AU$1,473 found 19 hours ago
Qantas Airways
Thu, 7 May - Wed, 20 May
SYD
Sydney
SEA
Seattle
AU$1,508 Return, found 20 hours ago
AU$1,508
Return
found 20 hours ago
Select Qantas Airways flight, departing Thu, 7 May from Sydney to Seattle, returning Wed, 20 May, priced at AU$1,508 found 20 hours ago
American Airlines
Tue, 26 May - Wed, 10 June
SYD
Sydney
SEA
Seattle
AU$1,534 Return, found 16 hours ago
AU$1,534
Return
found 16 hours ago
Select American Airlines flight, departing Tue, 26 May from Sydney to Seattle, returning Wed, 10 June, priced at AU$1,534 found 16 hours ago
Virgin Australia
Tue, 11 Aug - Mon, 24 Aug
MEL
Melbourne
SEA
Seattle
AU$1,605 Return, found 4 days ago
AU$1,605
Return
found 4 days ago
Select Virgin Australia flight, departing Tue, 11 Aug from Melbourne to Seattle, returning Mon, 24 Aug, priced at AU$1,605 found 4 days ago
Fiji Airways
Wed, 4 Nov - Wed, 18 Nov
SYD
Sydney
SEA
Seattle
AU$1,630 Return, found 3 days ago
AU$1,630
Return
found 3 days ago
Select Fiji Airways flight, departing Wed, 4 Nov from Sydney to Seattle, returning Wed, 18 Nov, priced at AU$1,630 found 3 days ago
All Nippon Airways
Wed, 4 Nov - Thu, 19 Nov
SYD
Sydney
SEA
Seattle
AU$1,659 Return, found 20 hours ago
AU$1,659
Return
found 20 hours ago
Select All Nippon Airways flight, departing Wed, 4 Nov from Sydney to Seattle, returning Thu, 19 Nov, priced at AU$1,659 found 20 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.

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$1,295.
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$1,295 and AU$1,659. Many lucky travellers nabbed one-way tickets from Melbourne (MEL) for only AU$796.
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$1,295 to AU$1,659.
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, United, American Airlines, EVA Airways, Qantas Airways, Virgin Australia, Jetstar, Philippine Airlines, Fiji Airways, Air Canada, Asiana Airlines, All Nippon Airways
Roundtrip price
from AU$1,295
King County Flights Information

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