£82 Cheap Flights to King County

View £82 flight on Sat, 22 Aug 2026Opens in a new window

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Cheap round-trip flights to King County

Prices were available within the past 7 days and start at £82 for one-way flights and £142 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Harbour Air Seaplanes
Mon, 8 Jun - Tue, 9 Jun
CXH
Vancouver
LKE
Seattle
£142 Return, found 6 hours ago
£142
Return
found 6 hours ago
Select Harbour Air Seaplanes flight, departing Mon, 8 Jun from Vancouver to Seattle, returning Tue, 9 Jun, priced at £142 found 6 hours ago
Harbour Air Seaplanes
Tue, 26 May - Tue, 9 Jun
CXH
Vancouver
LKE
Seattle
£163 Return, found 5 days ago
£163
Return
found 5 days ago
Select Harbour Air Seaplanes flight, departing Tue, 26 May from Vancouver to Seattle, returning Tue, 9 Jun, priced at £163 found 5 days ago
Harbour Air Seaplanes
Mon, 8 Jun - Tue, 9 Jun
CXH
Vancouver
LKE
Seattle
£170 Return, found 6 hours ago
£170
Return
found 6 hours ago
Select Harbour Air Seaplanes flight, departing Mon, 8 Jun from Vancouver to Seattle, returning Tue, 9 Jun, priced at £170 found 6 hours ago
Harbour Air Seaplanes
Thu, 11 Jun - Fri, 12 Jun
CXH
Vancouver
LKE
Seattle
£181 Return, found 16 hours ago
£181
Return
found 16 hours ago
Select Harbour Air Seaplanes flight, departing Thu, 11 Jun from Vancouver to Seattle, returning Fri, 12 Jun, priced at £181 found 16 hours ago
Harbour Air Seaplanes
Sun, 31 May - Mon, 1 Jun
CXH
Vancouver
LKE
Seattle
£188 Return, found 4 days ago
£188
Return
found 4 days ago
Select Harbour Air Seaplanes flight, departing Sun, 31 May from Vancouver to Seattle, returning Mon, 1 Jun, priced at £188 found 4 days ago
Harbour Air Seaplanes
Thu, 7 May - Sun, 10 May
CXH
Vancouver
LKE
Seattle
£197 Return, found 1 day ago
£197
Return
found 1 day ago
Select Harbour Air Seaplanes flight, departing Thu, 7 May from Vancouver to Seattle, returning Sun, 10 May, priced at £197 found 1 day ago
Harbour Air Seaplanes
Tue, 26 May - Tue, 9 Jun
CXH
Vancouver
LKE
Seattle
£200 Return, found 5 days ago
£200
Return
found 5 days ago
Select Harbour Air Seaplanes flight, departing Tue, 26 May from Vancouver to Seattle, returning Tue, 9 Jun, priced at £200 found 5 days ago
Harbour Air Seaplanes
Thu, 11 Jun - Fri, 12 Jun
CXH
Vancouver
LKE
Seattle
£208 Return, found 16 hours ago
£208
Return
found 16 hours ago
Select Harbour Air Seaplanes flight, departing Thu, 11 Jun from Vancouver to Seattle, returning Fri, 12 Jun, priced at £208 found 16 hours ago
Harbour Air Seaplanes
Sun, 31 May - Mon, 1 Jun
CXH
Vancouver
LKE
Seattle
£224 Return, found 4 days ago
£224
Return
found 4 days ago
Select Harbour Air Seaplanes flight, departing Sun, 31 May from Vancouver to Seattle, returning Mon, 1 Jun, priced at £224 found 4 days ago
Harbour Air Seaplanes
Sun, 26 Apr - Sat, 15 Aug
CXH
Vancouver
LKE
Seattle
£225 Return, found 10 hours ago
£225
Return
found 10 hours ago
Select Harbour Air Seaplanes flight, departing Sun, 26 Apr from Vancouver to Seattle, returning Sat, 15 Aug, priced at £225 found 10 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.

Icelandair
Sat, 29 Aug - Sun, 6 Sept
LHR
London
SEA
Seattle
£496 Return, found 1 day ago
£496
Return
found 1 day ago
Select Icelandair flight, departing Sat, 29 Aug from London to Seattle, returning Sun, 6 Sept, priced at £496 found 1 day 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 £142.
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 £142 and £496. Many lucky travellers nabbed one-way tickets from Vancouver (CXH) for only £82.
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 £142 to £496.
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.

Travel information

King County Flights Information

Airlines serving
Harbour Air Seaplanes
Roundtrip price
from £142
King County Flights Information

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