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

Return flights

21 Dec - 05 Jan	IndiGo
18 Dec - 03 Jan	IndiGo
16 Dec - 04 Jan	IndiGo
25 Dec - 03 Jan	IndiGo
12 Dec - 31 Dec	IndiGo
25 Dec - 29 Dec	Finnair
23 Dec - 29 Dec	Finnair
12 Dec - 01 Jan	IndiGo
25 Dec - 02 Jan	LOT
13 Dec - 27 Dec	IndiGo
03 Dec - 10 Dec	Finnair
19 Dec - 26 Dec	Finnair
13 Dec - 21 Dec	IndiGo
05 Dec - 12 Dec	Finnair
13 Dec - 20 Dec	IndiGo
04 Dec - 11 Dec	Finnair

Also check the deals for one-way flights from Delhi to Brussels 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 Delhi to Brussels in December from $458

Return flights