Cheapest return flights from Hong Kong to Seattle in December from $548

AirHint found the following cheapest return flights from Hong Kong (HKG) to Seattle (SEA) in December 2025 (see full year).

Return flights

06 Dec - 11 Dec Philippine Airlines
26 Dec - 31 Dec United
25 Dec - 03 Jan United
18 Dec - 10 Jan Philippine Airlines
28 Dec - 04 Jan Hong Kong Airlines
21 Dec - 29 Dec United
21 Dec - 28 Dec United
28 Dec - 31 Dec United
11 Dec - 15 Dec EVA Air
11 Dec - 18 Dec Philippine Airlines

Also check the deals for one-way flights from Hong Kong to Seattle in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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