AirHint found the following cheapest return flights from Delhi (DEL) to Lisbon (LIS) in October 2025 (see full year).

Return flights

29 Oct - 12 Nov	Finnair
30 Oct - 12 Nov	Finnair
29 Oct - 13 Nov	Finnair
30 Oct - 13 Nov	Finnair
29 Oct - 11 Nov	Finnair
06 Oct - 13 Oct	Finnair
28 Oct - 12 Nov	Finnair
01 Oct - 09 Oct	Finnair
19 Oct - 26 Nov	British Airways
02 Oct - 10 Oct	Finnair
28 Oct - 13 Nov	Finnair
19 Oct - 29 Oct	Finnair
01 Oct - 10 Oct	Finnair
21 Oct - 21 Nov	Finnair
19 Oct - 27 Oct	Finnair
22 Oct - 29 Oct	Finnair
01 Oct - 14 Oct	Finnair
02 Oct - 11 Oct	Finnair
19 Oct - 23 Oct	Finnair
18 Oct - 02 Nov	Finnair

Also check the deals for one-way flights from Delhi to Lisbon in October.

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 Lisbon in October from $536

Return flights