AirHint found the following cheapest return flights from Lajes (terceira Island) (TER) to Porto (OPO) in September 2025 (see full year).

Return flights

23 Sep - 07 Oct	Ryanair	direct
27 Sep - 07 Oct	Ryanair	direct
23 Sep - 04 Oct	Ryanair	direct
23 Sep - 11 Oct	Ryanair	direct
27 Sep - 11 Oct	Ryanair	direct
27 Sep - 18 Oct	Ryanair	direct
23 Sep - 14 Oct	Ryanair	direct
27 Sep - 14 Oct	Ryanair	direct
23 Sep - 30 Sep	Ryanair	direct
27 Sep - 30 Sep	Ryanair	direct
30 Sep - 07 Oct	Ryanair	direct
30 Sep - 04 Oct	Ryanair	direct
28 Sep - 29 Sep	TAP
25 Sep - 26 Sep	TAP
28 Sep - 29 Sep	Azores Airlines	direct

Also check the deals for one-way flights from Lajes (terceira Island) to Porto 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 Lajes (terceira Island) to Porto in September from 48€

Return flights