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

Return flights

03 Dec - 09 Dec	Virgin Atlantic
03 Dec - 16 Dec	Virgin Atlantic
09 Dec - 14 Jan	Virgin Atlantic
31 Dec - 11 Jan	Virgin Atlantic
05 Dec - 20 Dec	United
11 Dec - 07 Jan	Virgin Atlantic
10 Dec - 10 Jan	Virgin Atlantic
10 Dec - 26 Jan	Japan Airlines
08 Dec - 26 Jan	Japan Airlines
26 Dec - 17 Jan	Virgin Atlantic
27 Dec - 10 Jan	Virgin Atlantic
12 Dec - 07 Jan	Virgin Atlantic
10 Dec - 19 Jan	British Airways
04 Dec - 18 Dec	British Airways
06 Dec - 20 Dec	British Airways
20 Dec - 27 Dec	British Airways
19 Dec - 31 Dec	Air Canada
02 Dec - 16 Dec	British Airways
18 Dec - 29 Dec	British Airways
18 Dec - 28 Dec	British Airways

Also check the deals for one-way flights from Washington to Delhi in December.

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 Delhi in December from 636€

Return flights