Cheapest return flights from Singapore to Seattle in October from $672

AirHint found the following cheapest return flights from Singapore (SIN) to Seattle (SEA) in October 2025 (see full year).

Return flights

09 Oct - 13 Oct Air Canada
16 Oct - 30 Oct Air Canada
25 Oct - 28 Oct Air Canada
18 Oct - 06 Nov Air Canada
12 Oct - 19 Oct Air Canada
24 Oct - 27 Oct STARLUX Airlines
10 Oct - 14 Oct STARLUX Airlines
16 Oct - 08 Nov STARLUX Airlines
16 Oct - 30 Oct Singapore Airlines direct
16 Oct - 08 Nov Singapore Airlines direct
03 Oct - 08 Oct Delta

Also check the deals for one-way flights from Singapore to Seattle in October.

Skyscanner

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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