Cheap Flights to King County | Popular Routes to King County from HK$688

View HK$688 flight on Thu, 30 Apr 2026Opens in a new window

Popular airlines to King County

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Frontier Airlines

  • Air Canada

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Cheap round-trip flights to King County

Prices were available within the past 7 days and start at HK$688 for one-way flights and HK$1,359 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Harbour Air Seaplanes
Thu, 2 Apr - Sun, 5 Apr
CXH
Vancouver
LKE
Seattle
HK$1,359 Return, found 4 days ago
HK$1,359
Return
found 4 days ago
Select Harbour Air Seaplanes flight, departing Thu, 2 Apr from Vancouver to Seattle, returning Sun, 5 Apr, priced at HK$1,359 found 4 days ago
Harbour Air Seaplanes
Wed, 1 Jul - Wed, 22 Jul
CXH
Vancouver
LKE
Seattle
HK$1,555 Return, found 2 days ago
HK$1,555
Return
found 2 days ago
Select Harbour Air Seaplanes flight, departing Wed, 1 Jul from Vancouver to Seattle, returning Wed, 22 Jul, priced at HK$1,555 found 2 days ago
Harbour Air Seaplanes
Wed, 6 May - Sat, 9 May
CXH
Vancouver
LKE
Seattle
HK$1,557 Return, found 4 days ago
HK$1,557
Return
found 4 days ago
Select Harbour Air Seaplanes flight, departing Wed, 6 May from Vancouver to Seattle, returning Sat, 9 May, priced at HK$1,557 found 4 days ago
Harbour Air Seaplanes
Wed, 1 Jul - Wed, 22 Jul
CXH
Vancouver
LKE
Seattle
HK$1,753 Return, found 2 days ago
HK$1,753
Return
found 2 days ago
Select Harbour Air Seaplanes flight, departing Wed, 1 Jul from Vancouver to Seattle, returning Wed, 22 Jul, priced at HK$1,753 found 2 days ago
Harbour Air Seaplanes
Thu, 10 Sept - Mon, 14 Sept
CXH
Vancouver
LKE
Seattle
HK$2,244 Return, found 19 hours ago
HK$2,244
Return
found 19 hours ago
Select Harbour Air Seaplanes flight, departing Thu, 10 Sept from Vancouver to Seattle, returning Mon, 14 Sept, priced at HK$2,244 found 19 hours ago
Harbour Air Seaplanes
Wed, 1 Jul - Wed, 22 Jul
CXH
Vancouver
LKE
Seattle
HK$2,694 Return, found 2 days ago
HK$2,694
Return
found 2 days ago
Select Harbour Air Seaplanes flight, departing Wed, 1 Jul from Vancouver to Seattle, returning Wed, 22 Jul, priced at HK$2,694 found 2 days ago
Harbour Air Seaplanes
Wed, 1 Jul - Wed, 22 Jul
CXH
Vancouver
LKE
Seattle
HK$2,793 Return, found 2 days ago
HK$2,793
Return
found 2 days ago
Select Harbour Air Seaplanes flight, departing Wed, 1 Jul from Vancouver to Seattle, returning Wed, 22 Jul, priced at HK$2,793 found 2 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.

Delta
Fri, 26 Jun - Tue, 30 Jun
HKG
Hong Kong SAR
SEA
Seattle
HK$4,316 Return, found 5 days ago
HK$4,316
Return
found 5 days ago
Select Delta flight, departing Fri, 26 Jun from Hong Kong SAR to Seattle, returning Tue, 30 Jun, priced at HK$4,316 found 5 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 HK$1,359.
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 HK$1,359 and HK$4,316. Many lucky travellers nabbed one-way tickets from Vancouver (CXH) for only HK$688.
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 traveling 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 HK$1,359 to HK$4,316.
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.

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About King County

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About King County

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