Cheapest one-way flights from Seattle to Singapore in May from $467

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

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

One-Way flights

20 May Korean Air
13 May Asiana Airlines
08 May Air Canada
17 May Hawaiian Airlines
16 May Air Canada
23 May Air Canada
12 May Delta
08 May Singapore Airlines direct
20 May Singapore Airlines direct
17 May Singapore Airlines direct

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

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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