AirHint found the following cheapest return flights from Porto (OPO) to Basel (BSL) in July 2025 (see full year).

Return flights

22 Jul - 29 Jul	easyJet
14 Jul - 29 Jul	easyJet
10 Jul - 16 Jul	easyJet
04 Jul - 08 Jul	easyJet
02 Jul - 09 Jul	easyJet
15 Jul - 18 Jul	easyJet
05 Jul - 07 Jul	easyJet
22 Jul - 29 Jul	easyJet	direct
14 Jul - 02 Aug	easyJet
16 Jul - 30 Jul	easyJet
04 Jul - 07 Jul	easyJet
14 Jul - 02 Aug	easyJet	direct
29 Jul - 04 Aug	easyJet	direct
28 Jul - 01 Aug	easyJet
28 Jul - 01 Aug	easyJet	direct

Also check the deals for one-way flights from Porto to Basel 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 Porto to Basel in July from 151€

Return flights