Flights to Hilo from SeaTac

View ฿6,485 flight on Thu, 14 Aug 2025Opens in a new window

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Cheap Flights from SeaTac (SEA) to Hilo (KOA)

Prices were available within the past 7 days and start at ฿6,485 for one-way flights and ฿19,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 31 Jul - Tue, 5 Aug
SEA
Seattle
KOA
Kona Coast
฿19,500 Return, found 8 hours ago
฿19,500
Return
found 8 hours ago
Select Delta flight, departing Thu, 31 Jul from Seattle to Kona Coast, returning Tue, 5 Aug, priced at ฿19,500 found 8 hours ago
American Airlines
Thu, 31 Jul - Tue, 5 Aug
SEA
Seattle
KOA
Kona Coast
฿22,910 Return, found 8 hours ago
฿22,910
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 31 Jul from Seattle to Kona Coast, returning Tue, 5 Aug, priced at ฿22,910 found 8 hours ago
Delta
Thu, 31 Jul - Tue, 5 Aug
SEA
Seattle
KOA
Kona Coast
฿22,935 Return, found 8 hours ago
฿22,935
Return
found 8 hours ago
Select Delta flight, departing Thu, 31 Jul from Seattle to Kona Coast, returning Tue, 5 Aug, priced at ฿22,935 found 8 hours ago
Delta
Thu, 31 Jul - Tue, 5 Aug
SEA
Seattle
KOA
Kona Coast
฿24,055 Return, found 8 hours ago
฿24,055
Return
found 8 hours ago
Select Delta flight, departing Thu, 31 Jul from Seattle to Kona Coast, returning Tue, 5 Aug, priced at ฿24,055 found 8 hours ago
United
Thu, 31 Jul - Tue, 5 Aug
SEA
Seattle
KOA
Kona Coast
฿25,845 Return, found 8 hours ago
฿25,845
Return
found 8 hours ago
Select United flight, departing Thu, 31 Jul from Seattle to Kona Coast, returning Tue, 5 Aug, priced at ฿25,845 found 8 hours ago
Alaska Airlines
Thu, 31 Jul - Tue, 5 Aug
SEA
Seattle
KOA
Kona Coast
฿29,040 Return, found 8 hours ago
฿29,040
Return
found 8 hours ago
Select Alaska Airlines flight, departing Thu, 31 Jul from Seattle to Kona Coast, returning Tue, 5 Aug, priced at ฿29,040 found 8 hours ago

Find the cheapest month to fly from Seattle (SEA) to Kailua-Kona (KOA)

September is typically the cheapest month to fly

From ฿6,242 - ฿12,147 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.