AirHint found the following cheapest return flights from Frankfurt (FRA) to Karachi (KHI) in September 2025 (see full year).

Return flights

06 Sep - 21 Oct	Ryanair
29 Sep - 20 Oct	AJet
10 Sep - 25 Sep	Wizz Air
06 Sep - 06 Oct	Ryanair
06 Sep - 27 Sep	Ryanair
06 Sep - 11 Oct	Ryanair
19 Sep - 05 Oct	Wizz Air
01 Sep - 15 Sep	AJet
01 Sep - 20 Sep	AJet
01 Sep - 13 Oct	AJet
01 Sep - 31 Oct	AJet
15 Sep - 29 Sep	AJet
01 Sep - 30 Sep	Wizz Air
01 Sep - 27 Sep	AJet
24 Sep - 15 Oct	AJet
02 Sep - 01 Oct	AJet
11 Sep - 24 Sep	AJet
20 Sep - 15 Oct	Lufthansa

Also check the deals for one-way flights from Frankfurt to Karachi 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 Frankfurt to Karachi in September from 415€

Return flights