AirHint found the following cheapest return flights from Hong Kong (HKG) to Seattle (SEA) in September 2026 (see full year).
Return flights
| 19 Sep - 29 Sep | EVA Air | ||
| 29 Sep - 07 Oct | China Airlines | ||
| 13 Sep - 20 Sep | EVA Air | ||
| 29 Sep - 07 Oct | Cathay Pacific | direct | |
| 18 Sep - 28 Sep | Air Canada | ||
| 19 Sep - 29 Sep | Cathay Pacific | direct |
Also check the deals for one-way flights from Hong Kong to Seattle in September.
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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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