AirHint found the following cheapest return flights from Lisbon (LIS) to Helsinki (HEL) in July 2025 (see full year).

Return flights

17 Jul - 04 Aug	Ryanair
18 Jul - 04 Aug	easyJet
24 Jul - 28 Jul	Ryanair
24 Jul - 31 Jul	Ryanair
02 Jul - 07 Jul	Vueling Airlines
17 Jul - 21 Jul	Vueling Airlines
16 Jul - 27 Jul	Transavia France
02 Jul - 09 Jul	Vueling Airlines
20 Jul - 31 Jul	easyJet
13 Jul - 19 Jul	Ryanair
17 Jul - 03 Aug	Ryanair
29 Jul - 02 Aug	Ryanair
03 Jul - 06 Jul	Ryanair
06 Jul - 18 Jul	Ryanair
30 Jul - 05 Aug	Ryanair
18 Jul - 03 Aug	easyJet
25 Jul - 01 Aug	Air Europa
28 Jul - 05 Aug	Ryanair
26 Jul - 04 Aug	Ryanair
18 Jul - 03 Aug	Finnair	direct

Also check the deals for one-way flights from Lisbon to Helsinki in July.

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 Helsinki in July from $306

Return flights