Metro Z4 €2.30 (+€0.60 card) ~25–30 min to Trindade; Line E every 15 min from 7 Sep 2026.

Follow Metro signs from arrivals into the Aeroporto station attached to the terminal — no shuttle hop. Line E (Violet) runs toward Estádio do Dragão via Trindade. Metro do Porto’s 7 Sep 2026 timetable change put Line E at every 15 minutes; ignore the airport page’s leftover 20–30 min wording. Airport→centre is Andante zone Z4: €2.30 per single title from 1 Jan 2026 plus a €0.60 reusable Andante Azul card if you do not already have one — validate before boarding. A Z4 title is valid 1h15 after first validation. Tour 1 is €7.75 / 24h and Tour 3 is €16.55 / 72h (not the old €7.50 / €16 figures). Taxi rank and ride-hail (Bolt / Uber / Free Now) sit outside arrivals; daytime centre rides are often in the low-to-mid €20s on the meter and frequently cheaper on apps — ask for an estimate.

Classic 100 ml rules; Fast Track €11 online / €12 kiosk, 04:00–23:00.

ANA’s Porto liquids page still requires ≤100 ml containers in one resealable transparent bag (~20×20 cm / ~1 L). Do not assume a cabin-liquid waiver. Paid Fast Track is €11 online / €12 at the kiosk (IVA included, Guia de Taxas Comerciais Extra-Aviação); channel open 04:00–23:00; children up to 2 years free with a paying adult. Buy only via store.ana.pt / the ANA app or your airline — ANA warns about illicit third-party QR codes. Fast Track does not skip check-in, bag drop, or boarding.

Level 3 / gates 31–32; PP + LoungeKey + DragonPass N00384; €38 walk-in; toilets on floor 0 during works.

After security, take lifts/escalators to Level 3 near departure gates 31–32. Operator hours 04:00–21:00. Priority Pass and LoungeKey (OPO) list the same hours; children under 1 free on those programmes. Live DragonPass A10057/N00384 also lists 04:00–21:00 but admits children under 2 free. ANA caps paid stays at three hours; adult walk-in is €38 IVA included (child 3–12 €19). LoungeKey notes peak capacity restrictions. Operator copy says lounge toilets are closed during works — use the signed floor-0 facilities next to the stairs. TAP’s own lounge page lists branded TAP Premium Lounges in Lisbon and Paris-Orly only. CIP is a separate paid meet-and-greet / landside rooms product, not a second airside lounge.

Free dispensers left after security; none past non-Schengen passport control.

Traveler reports through December 2025 still find twin free multi-temperature water dispensers immediately after security on the left. Bring an empty bottle through screening. There is no official ANA fountain map, and reports typically find no refill stations after passport control in the non-Schengen gate pocket (roughly gates 1–13) — ask a café to fill a bottle or buy sealed water. Do not count on an unpublished vending-machine price. Toilet tap water in Porto is generally potable if you need a backup.