Cheapest return flights from Seattle to Singapore in August from 569€

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

Return flights

04 Aug - 27 Aug United
05 Aug - 28 Aug United
12 Aug - 26 Aug United
19 Aug - 03 Sep United
02 Aug - 26 Aug United
22 Aug - 08 Sep United
05 Aug - 19 Aug Korean Air
17 Aug - 24 Aug Korean Air
01 Aug - 28 Aug United
05 Aug - 28 Aug Singapore Airlines direct

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