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

Return flights

25 Sep - 01 Oct	easyJet
27 Sep - 09 Oct	TAP
25 Sep - 03 Oct	easyJet
20 Sep - 25 Sep	Pegasus Airlines
22 Sep - 29 Sep	Ryanair
29 Sep - 03 Oct	Turkish Airlines
30 Sep - 05 Oct	Turkish Airlines
25 Sep - 01 Oct	Iberia	direct
30 Sep - 05 Oct	Iberia	direct
27 Sep - 09 Oct	Iberia	direct
22 Sep - 29 Sep	Qatar Airways	direct
20 Sep - 25 Sep	Qatar Airways	direct

Also check the deals for one-way flights from Lisbon to Doha 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 Doha in September from $497

Return flights