AirHint found the following cheapest return flights from Washington (DCA) to Singapore (SIN) in January 2026 (see full year).

Return flights

18 Jan - 25 Jan	Frontier Airlines
16 Jan - 20 Jan	United
05 Jan - 12 Jan	United
17 Jan - 22 Jan	British Airways
04 Jan - 19 Jan	British Airways
05 Jan - 10 Jan	British Airways
02 Jan - 07 Jan	British Airways

Also check the deals for one-way flights from Washington to Singapore in January.

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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Cheapest return flights from Washington to Singapore in January from 942€

Return flights