AirHint found the following cheapest return flights from Lisbon (LIS) to Karachi (KHI) in August 2025 (see full year).

Return flights

28 Aug - 10 Sep	TAP
31 Aug - 07 Sep	Wizz Air
06 Aug - 09 Sep	Wizz Air Malta
04 Aug - 11 Aug	Eurowings
12 Aug - 19 Aug	Eurowings
06 Aug - 08 Sep	Ryanair
02 Aug - 06 Aug	Wizz Air Malta
07 Aug - 16 Aug	Brussels Airlines
04 Aug - 02 Sep	Vueling Airlines
18 Aug - 25 Aug	Pegasus Airlines
07 Aug - 23 Aug	Ryanair
04 Aug - 04 Sep	Vueling Airlines
05 Aug - 04 Sep	Ryanair
01 Aug - 31 Aug	Ryanair
06 Aug - 31 Aug	Ryanair
06 Aug - 06 Sep	Etihad Airways
02 Aug - 03 Sep	easyJet

Also check the deals for one-way flights from Lisbon to Karachi 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 Lisbon to Karachi in August from 594€

Return flights