Cheapest return flights from Seattle to Singapore in June from $750

Best time to book flights for Seattle (SEA) to Singapore (SIN) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Singapore (SIN) in June 2025 (see full year).

Return flights

05 Jun - 10 Jun Air Canada
03 Jun - 10 Jun Air Canada
12 Jun - 19 Jun Air Canada
01 Jun - 15 Jun Air Canada
08 Jun - 15 Jun Air Canada
10 Jun - 17 Jun Air Canada
19 Jun - 26 Jun Air Canada
09 Jun - 16 Jun Korean Air
29 Jun - 13 Jul Air Canada
14 Jun - 26 Jun Alaska Airlines
03 Jun - 10 Jun Singapore Airlines direct

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

Skyscanner

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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