Cheapest one-way flights from Seattle to Singapore in October from 327€

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

One-Way flights

28 Oct Asiana Airlines
19 Oct Philippine Airlines
25 Oct United
20 Oct United
19 Oct Singapore Airlines direct
21 Oct Singapore Airlines direct
28 Oct Singapore Airlines direct
25 Oct Singapore Airlines direct

Also check the deals for return flights from Seattle to Singapore in October.

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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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