Cheapest return flights from Singapore to Seattle in August from $928

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

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

Return flights

14 Aug - 31 Aug STARLUX Airlines
14 Aug - 30 Aug STARLUX Airlines
03 Aug - 16 Aug STARLUX Airlines
09 Aug - 19 Aug Delta
14 Aug - 31 Aug Singapore Airlines direct
03 Aug - 16 Aug Singapore Airlines direct

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

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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