Cheapest one-way flights from Seattle to Singapore in May from 434€

Best time to book flights for Seattle (SEA) to Singapore (SIN) flights at AirHint

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

One-Way flights

05 May Delta
17 May Delta

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

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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