Cheapest return flights from Boston to Singapore in December from $1020

AirHint found the following cheapest return flights from Boston (BOS) to Singapore (SIN) in December 2025 (see full year).

Return flights

13 Dec - 19 Jan Turkish Airlines
13 Dec - 16 Jan Turkish Airlines
13 Dec - 17 Jan Turkish Airlines
20 Dec - 20 Jan Turkish Airlines
21 Dec - 25 Jan IndiGo
13 Dec - 04 Jan Iberia
18 Dec - 20 Jan Porter Airlines (Canada) Ltd
13 Dec - 06 Jan Turkish Airlines
18 Dec - 18 Jan Porter Airlines (Canada) Ltd
23 Dec - 05 Jan Turkish Airlines

Also check the deals for one-way flights from Boston to Singapore in December.

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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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