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

Return flights

16 Sep - 14 Oct	TAP
18 Sep - 23 Sep	easyJet
17 Sep - 29 Oct	Ryanair
18 Sep - 13 Oct	Ryanair
19 Sep - 14 Oct	easyJet
16 Sep - 05 Oct	TAP
14 Sep - 13 Oct	Wizz Air
27 Sep - 12 Oct	Wizz Air Malta
27 Sep - 30 Sep	Wizz Air Malta
24 Sep - 29 Sep	Wizz Air Malta
17 Sep - 06 Oct	Ryanair
15 Sep - 28 Oct	Wizz Air
02 Sep - 16 Sep	Etihad Airways
26 Sep - 12 Oct	Pegasus Airlines
25 Sep - 30 Sep	easyJet
03 Sep - 16 Sep	Eurowings
09 Sep - 30 Sep	Etihad Airways
13 Sep - 28 Sep	TAP
23 Sep - 30 Sep	Etihad Airways
16 Sep - 28 Sep	Etihad Airways

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

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 Lisbon to Delhi in September from 454€

Return flights