Cheapest return flights from Seattle to Singapore in May from 526€

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

Return flights

01 May - 17 May Singapore Airlines direct
03 May - 17 May Singapore Airlines direct
08 May - 15 May Singapore Airlines direct
01 May - 19 May Singapore Airlines direct
02 May - 17 May Singapore Airlines direct
15 May - 23 May Singapore Airlines direct
01 May - 13 May Singapore Airlines
14 May - 11 Jun Singapore Airlines direct
15 May - 21 May Singapore Airlines direct
16 May - 21 May Singapore Airlines direct
21 May - 31 May Singapore Airlines direct
22 May - 04 Jun Singapore Airlines direct
31 May - 07 Jun Singapore Airlines direct

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

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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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