Cheapest return flights from Boston to Singapore in December from 769€

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

Return flights

03 Dec - 10 Dec United
11 Dec - 23 Dec Delta
11 Dec - 24 Dec Delta
11 Dec - 26 Dec Delta
11 Dec - 27 Dec Delta
11 Dec - 28 Dec Delta
01 Dec - 06 Dec Delta
12 Dec - 27 Dec Delta
19 Dec - 14 Jan IndiGo
18 Dec - 29 Dec IndiGo
18 Dec - 30 Dec Delta
20 Dec - 04 Jan Delta

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

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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