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Cheap Flights to King County | Popular Routes to King County from HK$1,254

View HK$1,254 flight on Sat, 5 Sept 2026Opens in a new window

Popular airlines to King County

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Frontier Airlines

  • Southwest Airlines

  • JetBlue Airways

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Cheap round-trip flights to King County

Prices were available within the past 7 days and start at HK$1,254 for one-way flights and HK$1,862 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 7 Nov - Sat, 14 Nov
EWR
New York
SEA
Seattle
HK$1,862 Return, found 5 days ago
HK$1,862
Return
found 5 days ago
Select Delta flight, departing Sat, 7 Nov from New York to Seattle, returning Sat, 14 Nov, priced at HK$1,862 found 5 days ago
Alaska Airlines
Tue, 15 Sept - Mon, 21 Sept
EWR
New York
SEA
Seattle
HK$2,351 Return, found 4 days ago
HK$2,351
Return
found 4 days ago
Select Alaska Airlines flight, departing Tue, 15 Sept from New York to Seattle, returning Mon, 21 Sept, priced at HK$2,351 found 4 days ago
American Airlines
Sat, 7 Nov - Sat, 14 Nov
EWR
New York
SEA
Seattle
HK$3,211 Return, found 5 days ago
HK$3,211
Return
found 5 days ago
Select American Airlines flight, departing Sat, 7 Nov from New York to Seattle, returning Sat, 14 Nov, priced at HK$3,211 found 5 days ago
United
Sun, 13 Sept - Mon, 21 Sept
EWR
New York
SEA
Seattle
HK$3,211 Return, found 4 days ago
HK$3,211
Return
found 4 days ago
Select United flight, departing Sun, 13 Sept from New York to Seattle, returning Mon, 21 Sept, priced at HK$3,211 found 4 days ago
Cathay Pacific
Thu, 8 Oct - Wed, 28 Oct
HKG
Hong Kong SAR
SEA
Seattle
HK$4,492 Return, just found
HK$4,492
Return
just found
Select Cathay Pacific flight, departing Thu, 8 Oct from Hong Kong SAR to Seattle, returning Wed, 28 Oct, priced at HK$4,492 just found
Air Canada
Fri, 4 Dec - Wed, 6 Jan
HKG
Hong Kong SAR
SEA
Seattle
HK$4,514 Return, just found
HK$4,514
Return
just found
Select Air Canada flight, departing Fri, 4 Dec from Hong Kong SAR to Seattle, returning Wed, 6 Jan, priced at HK$4,514 just found
Korean Air
Mon, 1 Mar - Sun, 14 Mar
MNL
Manila
SEA
Seattle
HK$6,050 Return, found 1 day ago
HK$6,050
Return
found 1 day ago
Select Korean Air flight, departing Mon, 1 Mar from Manila to Seattle, returning Sun, 14 Mar, priced at HK$6,050 found 1 day ago
STARLUX Airlines
Wed, 4 Nov - Tue, 24 Nov
HKG
Hong Kong SAR
SEA
Seattle
HK$6,219 Return, just found
HK$6,219
Return
just found
Select STARLUX Airlines flight, departing Wed, 4 Nov from Hong Kong SAR to Seattle, returning Tue, 24 Nov, priced at HK$6,219 just found
Philippine Airlines
Mon, 1 Mar - Sun, 14 Mar
MNL
Manila
SEA
Seattle
HK$6,266 Return, found 1 day ago
HK$6,266
Return
found 1 day ago
Select Philippine Airlines flight, departing Mon, 1 Mar from Manila to Seattle, returning Sun, 14 Mar, priced at HK$6,266 found 1 day ago
EVA Airways
Thu, 24 Sept - Mon, 5 Oct
HKG
Hong Kong SAR
SEA
Seattle
HK$6,278 Return, found 1 day ago
HK$6,278
Return
found 1 day ago
Select EVA Airways flight, departing Thu, 24 Sept from Hong Kong SAR to Seattle, returning Mon, 5 Oct, priced at HK$6,278 found 1 day 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.

Cathay Pacific
Thu, 8 Oct - Wed, 28 Oct
HKG
Hong Kong SAR
SEA
Seattle
HK$4,492 Return, just found
HK$4,492
Return
just found
Select Cathay Pacific flight, departing Thu, 8 Oct from Hong Kong SAR to Seattle, returning Wed, 28 Oct, priced at HK$4,492 just found

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$1,862.
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$1,862 and HK$6,278. Many lucky travellers nabbed one-way tickets from New York (EWR) for only HK$1,254.
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$1,862 to HK$6,278.
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

About King County

Expedia offers flights to King County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to King County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About King County
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