AirHint found the following cheapest return flights from Porto (OPO) to Delhi (DEL) in August 2025 (see full year).

Return flights

26 Aug - 08 Sep	Ryanair
26 Aug - 09 Sep	Ryanair
28 Aug - 04 Sep	Ryanair
09 Aug - 18 Sep	Lufthansa
07 Aug - 17 Sep	Ryanair
10 Aug - 16 Sep	Ryanair
25 Aug - 08 Sep	TAP
08 Aug - 17 Sep	Wizz Air Malta
15 Aug - 16 Sep	Ryanair
09 Aug - 17 Sep	Wizz Air Malta
11 Aug - 18 Aug	Ryanair
21 Aug - 28 Aug	Ryanair
05 Aug - 12 Aug	Ryanair
11 Aug - 23 Aug	Ryanair
04 Aug - 11 Aug	easyJet
08 Aug - 31 Aug	easyJet
11 Aug - 30 Aug	Ryanair
24 Aug - 31 Aug	TAP
16 Aug - 25 Aug	Ryanair
06 Aug - 13 Aug	Ryanair

Also check the deals for one-way flights from Porto to Delhi in August.

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 Porto to Delhi in August from $738

Return flights