AirHint found the following cheapest return flights from Seattle (SEA) to Singapore (SIN) in November 2025 (see full year).
Return flights
| 12 Nov - 19 Nov | Philippine Airlines | ||
| 13 Nov - 20 Nov | Air Canada | ||
| 16 Nov - 23 Nov | Philippine Airlines | ||
| 21 Nov - 24 Nov | Asiana Airlines | ||
| 13 Nov - 20 Nov | Singapore Airlines | direct |
Also check the deals for one-way flights from Seattle to Singapore in November.
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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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