Cheapest one-way flights from Singapore to Seattle in June from $461
AirHint found the following cheapest one-way flights from Singapore (SIN) to Seattle (SEA) in June 2025 (see full year).
One-Way flights
Also check the deals for return flights from Singapore to Seattle in June.
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.
