Cheapest return flights from Washington to Singapore in December from 1268€

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

Return flights

06 Dec - 07 Jan United
21 Dec - 05 Jan Delta
20 Dec - 31 Dec Delta
19 Dec - 09 Jan Delta
21 Dec - 02 Jan British Airways
17 Dec - 22 Dec British Airways
20 Dec - 04 Jan Emirates
17 Dec - 04 Jan British Airways

Also check the deals for one-way flights from Washington 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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