Cheapest return flights from Seattle to Singapore in January from 586€

AirHint found the following cheapest return flights from Seattle (SEA) to Singapore (SIN) in January 2026 (see full year).

Return flights

29 Jan - 08 Feb Asiana Airlines
24 Jan - 27 Jan Asiana Airlines
13 Jan - 20 Jan Asiana Airlines
15 Jan - 25 Jan Asiana Airlines
25 Jan - 26 Feb United
15 Jan - 27 Jan ANA
23 Jan - 26 Jan United
05 Jan - 19 Jan United
27 Jan - 21 Feb Delta
08 Jan - 08 Feb Turkish Airlines
07 Jan - 07 Feb Turkish Airlines
15 Jan - 27 Jan Singapore Airlines direct
15 Jan - 25 Jan Singapore Airlines direct
29 Jan - 08 Feb Singapore Airlines direct
08 Jan - 08 Feb Singapore Airlines direct

Also check the deals for one-way flights from Seattle to Singapore in January.

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