Cheap Flights to King County from $19

View $19 flight on Fri, Jan 23, 2026Opens in a new window

Popular airlines to King County

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Air Canada

    Air Canada

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How much is the cheapest flight to King County?

Prices were available within the past 7 days and start at $19 for one-way flights and $38 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Harbour Air Seaplanes
Mon, Apr 13 - Sun, Apr 19
CXH
Vancouver
LKE
Seattle
$219 Roundtrip, found 1 day ago
$219
Roundtrip
found 1 day ago
Select Harbour Air Seaplanes flight, departing Mon, Apr 13 from Vancouver to Seattle, returning Sun, Apr 19, priced at $219 found 1 day ago
Harbour Air Seaplanes
Wed, May 13 - Fri, May 15
CXH
Vancouver
LKE
Seattle
$220 Roundtrip, found 10 hours ago
$220
Roundtrip
found 10 hours ago
Select Harbour Air Seaplanes flight, departing Wed, May 13 from Vancouver to Seattle, returning Fri, May 15, priced at $220 found 10 hours ago
Harbour Air Seaplanes
Sun, Jul 5 - Mon, Jul 6
YWH
Victoria
LKE
Seattle
$220 Roundtrip, just found
$220
Roundtrip
just found
Select Harbour Air Seaplanes flight, departing Sun, Jul 5 from Victoria to Seattle, returning Mon, Jul 6, priced at $220 just found
Harbour Air Seaplanes
Sun, Apr 19 - Sat, Apr 25
CXH
Vancouver
LKE
Seattle
$234 Roundtrip, found 3 days ago
$234
Roundtrip
found 3 days ago
Select Harbour Air Seaplanes flight, departing Sun, Apr 19 from Vancouver to Seattle, returning Sat, Apr 25, priced at $234 found 3 days ago
Harbour Air Seaplanes
Fri, Jul 3 - Mon, Jul 6
YWH
Victoria
LKE
Seattle
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select Harbour Air Seaplanes flight, departing Fri, Jul 3 from Victoria to Seattle, returning Mon, Jul 6, priced at $249 found 1 day ago
Harbour Air Seaplanes
Sat, May 30 - Sun, May 31
CXH
Vancouver
LKE
Seattle
$271 Roundtrip, found 1 day ago
$271
Roundtrip
found 1 day ago
Select Harbour Air Seaplanes flight, departing Sat, May 30 from Vancouver to Seattle, returning Sun, May 31, priced at $271 found 1 day ago
Harbour Air Seaplanes
Mon, Jun 29 - Mon, Jul 13
CXH
Vancouver
LKE
Seattle
$316 Roundtrip, found 3 days ago
$316
Roundtrip
found 3 days ago
Select Harbour Air Seaplanes flight, departing Mon, Jun 29 from Vancouver to Seattle, returning Mon, Jul 13, priced at $316 found 3 days ago
Harbour Air Seaplanes
Wed, Jul 1 - Fri, Jul 31
CXH
Vancouver
LKE
Seattle
$320 Roundtrip, found 2 days ago
$320
Roundtrip
found 2 days ago
Select Harbour Air Seaplanes flight, departing Wed, Jul 1 from Vancouver to Seattle, returning Fri, Jul 31, priced at $320 found 2 days ago
Harbour Air Seaplanes
Sat, Jun 6 - Sun, Jun 14
CXH
Vancouver
LKE
Seattle
$322 Roundtrip, found 1 day ago
$322
Roundtrip
found 1 day ago
Select Harbour Air Seaplanes flight, departing Sat, Jun 6 from Vancouver to Seattle, returning Sun, Jun 14, priced at $322 found 1 day ago
Harbour Air Seaplanes
Mon, Aug 24 - Fri, Aug 28
CXH
Vancouver
LKE
Seattle
$323 Roundtrip, found 21 hours ago
$323
Roundtrip
found 21 hours ago
Select Harbour Air Seaplanes flight, departing Mon, Aug 24 from Vancouver to Seattle, returning Fri, Aug 28, priced at $323 found 21 hours ago

Airports in King County

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Flights from $219
SEA
Seattle - Tacoma Intl.
Cheapest
Flights from $219

Trending flights to King County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Feb 7 - Mon, Feb 9
LAS
Las Vegas
SEA
Seattle
$38 Roundtrip, just found
$38
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Feb 7 from Las Vegas to Seattle, returning Mon, Feb 9, priced at $38 just found

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Travel information

King County Flights Information

Airlines serving
Harbour Air Seaplanes
Roundtrip price
from $38
King County Flights Information

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