Cheap Flights to King County from NT$2,493

View NT$2,493 flight on Wed, 2026/5/6Opens 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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How much is the cheapest flight to King County?

Prices were available within the past 7 days and start at NT$2,493 for one-way flights and NT$4,986 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, May 6 - Wed, May 27
SFO
San Francisco
SEA
Seattle
NT$4,986 Roundtrip, found 1 day ago
NT$4,986
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, May 6 from San Francisco to Seattle, returning Wed, May 27, priced at NT$4,986 found 1 day ago
Delta
Sat, May 23 - Sat, May 30
LAX
Los Angeles
SEA
Seattle
NT$5,658 Roundtrip, found 6 days ago
NT$5,658
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, May 23 from Los Angeles to Seattle, returning Sat, May 30, priced at NT$5,658 found 6 days ago
Delta
Thu, Apr 30 - Thu, May 7
PHX
Phoenix
SEA
Seattle
NT$6,294 Roundtrip, found 6 days ago
NT$6,294
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Apr 30 from Phoenix to Seattle, returning Thu, May 7, priced at NT$6,294 found 6 days ago
United
Wed, May 6 - Wed, May 27
SFO
San Francisco
SEA
Seattle
NT$7,529 Roundtrip, found 1 day ago
NT$7,529
Roundtrip
found 1 day ago
Select United flight, departing Wed, May 6 from San Francisco to Seattle, returning Wed, May 27, priced at NT$7,529 found 1 day ago
Alaska Airlines
Fri, May 1 - Tue, May 19
SFO
San Francisco
PAE
Seattle
NT$8,484 Roundtrip, found 4 days ago
NT$8,484
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, May 1 from San Francisco to Seattle, returning Tue, May 19, priced at NT$8,484 found 4 days ago
American Airlines
Thu, Apr 30 - Thu, May 7
PHX
Phoenix
SEA
Seattle
NT$9,811 Roundtrip, found 6 days ago
NT$9,811
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Apr 30 from Phoenix to Seattle, returning Thu, May 7, priced at NT$9,811 found 6 days ago
American Airlines
Thu, May 28 - Wed, Jun 3
LAX
Los Angeles
PAE
Seattle
NT$11,339 Roundtrip, found 5 hours ago
NT$11,339
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, May 28 from Los Angeles to Seattle, returning Wed, Jun 3, priced at NT$11,339 found 5 hours ago
American Airlines
Thu, Oct 1 - Tue, Oct 20
PHX
Phoenix
PAE
Seattle
NT$12,128 Roundtrip, found 12 hours ago
NT$12,128
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Thu, Oct 1 from Phoenix to Seattle, returning Tue, Oct 20, priced at NT$12,128 found 12 hours ago
Delta
Tue, May 5 - Wed, May 6
TPE
Taipei
SEA
Seattle
NT$20,648 Roundtrip, just found
NT$20,648
Roundtrip
just found
Select Delta flight, departing Tue, May 5 from Taipei to Seattle, returning Wed, May 6, priced at NT$20,648 just found
Korean Air
Tue, May 5 - Wed, May 6
TPE
Taipei
SEA
Seattle
NT$27,369 Roundtrip, just found
NT$27,369
Roundtrip
just found
Select Korean Air flight, departing Tue, May 5 from Taipei to Seattle, returning Wed, May 6, priced at NT$27,369 just found

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.

Delta
Tue, May 5 - Wed, May 6
TPE
Taipei
SEA
Seattle
NT$20,648 Roundtrip, just found
NT$20,648
Roundtrip
just found
Select Delta flight, departing Tue, May 5 from Taipei to Seattle, returning Wed, May 6, priced at NT$20,648 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 NT$4,986.
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 NT$4,986 and NT$27,369. Many lucky travelers nabbed one-way tickets from San Francisco (SFO) for only NT$2,493.
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 NT$4,986 to NT$27,369.
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 55ºF to 75ºF 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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