Cheapest one-way flights from Seattle to Singapore in August from 336€

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

One-Way flights

19 Aug Delta
12 Aug Delta
17 Aug United
23 Aug Alaska Airlines
16 Aug Hawaiian Airlines
01 Aug Korean Air
23 Aug Singapore Airlines direct
17 Aug Singapore Airlines direct
01 Aug Singapore Airlines direct

Also check the deals for return 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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Feel free to contact us with any feedback or request another flight research.