Cheapest one-way flights from Seattle to Singapore in June from $537

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

One-Way flights

16 Jun China Eastern
26 Jun Asiana Airlines
17 Jun Air Canada
29 Jun Asiana Airlines
27 Jun ANA
26 Jun Singapore Airlines direct
17 Jun Singapore Airlines direct
29 Jun Singapore Airlines direct
27 Jun Singapore Airlines direct

Also check the deals for return flights from Seattle to Singapore in June.

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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