Cheapest return flights from Seattle to Singapore in March from 608€

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

Return flights

05 Mar - 11 Mar Philippine Airlines
05 Mar - 10 Mar Philippine Airlines
23 Mar - 30 Mar United
24 Mar - 31 Mar Singapore Airlines
08 Mar - 20 Mar United
08 Mar - 20 Mar Singapore Airlines direct
22 Mar - 29 Mar Philippine Airlines
05 Mar - 10 Mar Singapore Airlines direct
13 Mar - 22 Mar Philippine Airlines
25 Mar - 01 Apr Philippine Airlines
22 Mar - 29 Mar Singapore Airlines direct

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

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