Cheapest one-way flights from Singapore to Seattle in May from $479

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

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

One-Way flights

27 May STARLUX Airlines
24 May STARLUX Airlines
26 May STARLUX Airlines
22 May STARLUX Airlines
23 May STARLUX Airlines
25 May United
27 May Singapore Airlines direct
25 May Singapore Airlines direct
24 May Singapore Airlines direct
22 May Singapore Airlines direct

Also check the deals for return flights from Singapore to Seattle 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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