Cheapest return flights from Singapore to Seattle in July from $737

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 July 2025 (see full year).

Return flights

10 Jul - 20 Aug United
19 Jul - 28 Jul STARLUX Airlines
20 Jul - 29 Jul STARLUX Airlines
04 Jul - 11 Jul STARLUX Airlines
19 Jul - 27 Jul STARLUX Airlines
10 Jul - 15 Jul STARLUX Airlines
22 Jul - 25 Jul STARLUX Airlines
01 Jul - 08 Jul STARLUX Airlines
04 Jul - 19 Jul STARLUX Airlines
01 Jul - 06 Jul STARLUX Airlines
01 Jul - 07 Jul STARLUX Airlines
19 Jul - 16 Aug United

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

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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