Cheap Flights to King County from NT$3,148

View NT$3,148 flight on Tue, 2026/5/26Opens 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$3,148 for one-way flights and NT$5,937 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, May 9 - Mon, May 11
LAX
Los Angeles
SEA
Seattle
NT$5,937 Roundtrip, found 13 hours ago
NT$5,937
Roundtrip
found 13 hours ago
Select Delta flight, departing Sat, May 9 from Los Angeles to Seattle, returning Mon, May 11, priced at NT$5,937 found 13 hours ago
United
Sat, May 9 - Mon, May 11
LAX
Los Angeles
SEA
Seattle
NT$7,844 Roundtrip, found 13 hours ago
NT$7,844
Roundtrip
found 13 hours ago
Select United flight, departing Sat, May 9 from Los Angeles to Seattle, returning Mon, May 11, priced at NT$7,844 found 13 hours ago
Delta
Tue, Jun 2 - Wed, Jun 10
EWR
New York
SEA
Seattle
NT$9,104 Roundtrip, found 1 day ago
NT$9,104
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jun 2 from New York to Seattle, returning Wed, Jun 10, priced at NT$9,104 found 1 day ago
American Airlines
Sat, May 9 - Mon, May 11
LAX
Los Angeles
SEA
Seattle
NT$9,750 Roundtrip, found 13 hours ago
NT$9,750
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Sat, May 9 from Los Angeles to Seattle, returning Mon, May 11, priced at NT$9,750 found 13 hours ago
American Airlines
Thu, May 28 - Wed, Jun 3
LAX
Los Angeles
PAE
Seattle
NT$11,339 Roundtrip, found 19 hours ago
NT$11,339
Roundtrip
found 19 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 19 hours ago
Delta
Mon, May 18 - Wed, Sep 30
TPE
Taipei
SEA
Seattle
NT$20,624 Roundtrip, just found
NT$20,624
Roundtrip
just found
Select Delta flight, departing Mon, May 18 from Taipei to Seattle, returning Wed, Sep 30, priced at NT$20,624 just found
Asiana Airlines
Thu, Oct 15 - Wed, Oct 21
TPE
Taipei
SEA
Seattle
NT$27,327 Roundtrip, found 2 hours ago
NT$27,327
Roundtrip
found 2 hours ago
Select Asiana Airlines flight, departing Thu, Oct 15 from Taipei to Seattle, returning Wed, Oct 21, priced at NT$27,327 found 2 hours ago
Korean Air
Thu, Oct 15 - Wed, Oct 21
TPE
Taipei
SEA
Seattle
NT$27,327 Roundtrip, found 2 hours ago
NT$27,327
Roundtrip
found 2 hours ago
Select Korean Air flight, departing Thu, Oct 15 from Taipei to Seattle, returning Wed, Oct 21, priced at NT$27,327 found 2 hours ago
All Nippon Airways
Sun, Sep 27 - Mon, Oct 12
TSA
Taipei
SEA
Seattle
NT$28,539 Roundtrip, found 3 days ago
NT$28,539
Roundtrip
found 3 days ago
Select All Nippon Airways flight, departing Sun, Sep 27 from Taipei to Seattle, returning Mon, Oct 12, priced at NT$28,539 found 3 days ago
Philippine Airlines
Mon, Oct 26 - Mon, Nov 16
TPE
Taipei
SEA
Seattle
NT$28,665 Roundtrip, found 3 hours ago
NT$28,665
Roundtrip
found 3 hours ago
Select Philippine Airlines flight, departing Mon, Oct 26 from Taipei to Seattle, returning Mon, Nov 16, priced at NT$28,665 found 3 hours ago

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
Mon, May 18 - Wed, Sep 30
TPE
Taipei
SEA
Seattle
NT$20,624 Roundtrip, just found
NT$20,624
Roundtrip
just found
Select Delta flight, departing Mon, May 18 from Taipei to Seattle, returning Wed, Sep 30, priced at NT$20,624 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$5,937.
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$5,937 and NT$28,665. Many lucky travelers nabbed one-way tickets from Los Angeles (LAX) for only NT$3,148.
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$5,937 to NT$28,665.
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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