Default HTG hotel image

Flights to Onalaska, Washington from NT$19,843

View NT$12,311 flight on Sun, 2026/9/13Opens in a new window

Popular airlines to Onalaska

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 45% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Onalaska?

Prices were available within the past 7 days and start at NT$12,311 for one-way flights and NT$19,843 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Sep 13 - Tue, Sep 22
TPE
Taipei
SEA
Seattle
NT$20,024 Roundtrip, just found
NT$20,024
Roundtrip
just found
Select United flight, departing Sun, Sep 13 from Taipei to Seattle, returning Tue, Sep 22, priced at NT$20,024 just found
Delta
Fri, Sep 18 - Tue, Sep 29
TPE
Taipei
SEA
Seattle
NT$21,498 Roundtrip, found 4 days ago
NT$21,498
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Sep 18 from Taipei to Seattle, returning Tue, Sep 29, priced at NT$21,498 found 4 days ago
Korean Air
Sun, Sep 13 - Tue, Sep 22
TPE
Taipei
SEA
Seattle
NT$22,068 Roundtrip, just found
NT$22,068
Roundtrip
just found
Select Korean Air flight, departing Sun, Sep 13 from Taipei to Seattle, returning Tue, Sep 22, priced at NT$22,068 just found
Cathay Pacific
Mon, Nov 9 - Tue, Nov 24
TPE
Taipei
SEA
Seattle
NT$24,301 Roundtrip, found 2 hours ago
NT$24,301
Roundtrip
found 2 hours ago
Select Cathay Pacific flight, departing Mon, Nov 9 from Taipei to Seattle, returning Tue, Nov 24, priced at NT$24,301 found 2 hours ago
China Airlines
Sun, Sep 27 - Mon, Oct 12
TPE
Taipei
SEA
Seattle
NT$24,475 Roundtrip, found 3 hours ago
NT$24,475
Roundtrip
found 3 hours ago
Select China Airlines flight, departing Sun, Sep 27 from Taipei to Seattle, returning Mon, Oct 12, priced at NT$24,475 found 3 hours ago

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

January is typically the cheapest month to fly

From NT$5,348 - NT$11,867 per traveler.

Travel information

Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Roundtrip price
NT$5,047

Trending flights to Onalaska

Prices were available within the past 7 days and start at NT$12,311 for one-way flights and NT$19,843 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Nov 8 - Sun, Nov 8
TPE
Taipei
SEA
Seattle
NT$19,843 Roundtrip, found 9 hours ago
NT$19,843
Roundtrip
found 9 hours ago
Select United flight, departing Sun, Nov 8 from Taipei to Seattle, returning Sun, Nov 8, priced at NT$19,843 found 9 hours ago
*Available to Expedia members.