Cheapest one-way flights from Seattle to Singapore in March from $265

AirHint found the following cheapest one-way flights from Seattle (SEA) to Singapore (SIN) in March 2026 (see full year).

One-Way flights

15 Mar Singapore Airlines direct
17 Mar Singapore Airlines direct
01 Mar Singapore Airlines direct
19 Mar Singapore Airlines direct
07 Mar Singapore Airlines direct
22 Mar Philippine Airlines
22 Mar Singapore Airlines direct
26 Mar United
26 Mar Singapore Airlines direct

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

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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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