Cheap Flights to King County from NT$2,765

View NT$2,765 flight on Tue, 2026/4/7Opens 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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How much is the cheapest flight to King County?

Prices were available within the past 7 days and start at NT$2,765 for one-way flights and NT$5,222 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Apr 13 - Sun, Apr 19
SNA
Orange County
SEA
Seattle
NT$5,222 Roundtrip, found 1 day ago
NT$5,222
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Apr 13 from Orange County to Seattle, returning Sun, Apr 19, priced at NT$5,222 found 1 day ago
Delta
Mon, Apr 13 - Sun, Apr 19
SNA
Orange County
SEA
Seattle
NT$5,887 Roundtrip, found 1 day ago
NT$5,887
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Apr 13 from Orange County to Seattle, returning Sun, Apr 19, priced at NT$5,887 found 1 day ago
Delta
Sat, Sep 5 - Sat, Sep 12
JAN
Jackson
SEA
Seattle
NT$14,773 Roundtrip, found 7 hours ago
NT$14,773
Roundtrip
found 7 hours ago
Select Delta flight, departing Sat, Sep 5 from Jackson to Seattle, returning Sat, Sep 12, priced at NT$14,773 found 7 hours ago
American Airlines
Sat, Sep 5 - Sat, Sep 12
JAN
Jackson
SEA
Seattle
NT$16,775 Roundtrip, found 7 hours ago
NT$16,775
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, Sep 5 from Jackson to Seattle, returning Sat, Sep 12, priced at NT$16,775 found 7 hours ago
Cathay Pacific
Sun, Apr 26 - Mon, May 11
TPE
Taipei
SEA
Seattle
NT$19,288 Roundtrip, just found
NT$19,288
Roundtrip
just found
Select Cathay Pacific flight, departing Sun, Apr 26 from Taipei to Seattle, returning Mon, May 11, priced at NT$19,288 just found
United
Sat, May 2 - Sun, May 3
TPE
Taipei
SEA
Seattle
NT$19,637 Roundtrip, found 23 hours ago
NT$19,637
Roundtrip
found 23 hours ago
Select United flight, departing Sat, May 2 from Taipei to Seattle, returning Sun, May 3, priced at NT$19,637 found 23 hours ago
Cathay Pacific
Sun, Apr 26 - Tue, May 5
KHH
Kaohsiung
SEA
Seattle
NT$20,288 Roundtrip, found 4 hours ago
NT$20,288
Roundtrip
found 4 hours ago
Select Cathay Pacific flight, departing Sun, Apr 26 from Kaohsiung to Seattle, returning Tue, May 5, priced at NT$20,288 found 4 hours ago
Philippine Airlines
Thu, Mar 12 - Sun, Mar 29
TPE
Taipei
SEA
Seattle
NT$22,168 Roundtrip, found 1 hour ago
NT$22,168
Roundtrip
found 1 hour ago
Select Philippine Airlines flight, departing Thu, Mar 12 from Taipei to Seattle, returning Sun, Mar 29, priced at NT$22,168 found 1 hour ago
Korean Air
Tue, Jun 16 - Sun, Jul 19
TPE
Taipei
SEA
Seattle
NT$22,750 Roundtrip, just found
NT$22,750
Roundtrip
just found
Select Korean Air flight, departing Tue, Jun 16 from Taipei to Seattle, returning Sun, Jul 19, priced at NT$22,750 just found
All Nippon Airways
Wed, Sep 30 - Mon, Oct 12
TSA
Taipei
SEA
Seattle
NT$23,392 Roundtrip, found 2 hours ago
NT$23,392
Roundtrip
found 2 hours ago
Select All Nippon Airways flight, departing Wed, Sep 30 from Taipei to Seattle, returning Mon, Oct 12, priced at NT$23,392 found 2 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.

Cathay Pacific
Sun, Apr 26 - Mon, May 11
TPE
Taipei
SEA
Seattle
NT$19,288 Roundtrip, just found
NT$19,288
Roundtrip
just found
Select Cathay Pacific flight, departing Sun, Apr 26 from Taipei to Seattle, returning Mon, May 11, priced at NT$19,288 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$5,222.
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$5,222 and NT$23,392. Many lucky travelers nabbed one-way tickets from Orange County (SNA) for only NT$2,765.
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$5,222 to NT$23,392.
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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