Portugal is small, the trains cover the spine of it cheaply, and there is exactly one region where a car becomes necessary. That combination makes multi-day organised tours here largely a purchase of logistics you can arrange in an afternoon.
The week that works
Fly into Porto, out of Faro. Open-jaw tickets cost about the same as returns and save a day of backtracking.
Days 1–3, Porto and the Douro. Porto's Ribeira, São Bento station's azulejos, the port lodges across the river in Gaia. Then the train to Pinhão — two hours, under €15, with the last 45 minutes beside the river through terraced vineyards. Two nights at a quinta.
Day 4, south by train. Coimbra for the old university and the Joanina Library, or straight to Lisbon.
Days 5–7, Lisbon and Sintra. Alfama and the viewpoints, Belém, and Sintra as a full day.
Extend to ten days and add the Alentejo by car, and the Algarve at the end.
The fares
| Leg | Time | Cost |
|---|---|---|
| Porto → Pinhão | ~2h | €13–15 |
| Porto → Lisbon (AP) | 2h45 | €25–35 ahead |
| Porto → Coimbra | 1h10 | €15–22 |
| Lisbon → Sintra | 40 min | €2.30 |
| Lisbon → Lagos | ~4h | €22–30 |
Book Alfa Pendular a week or more ahead; walk-up fares are roughly double.
Sintra, which needs planning not guiding
Forty minutes by train from Rossio for €2.30, with shuttle buses between the palaces.
What matters is booking Pena Palace ahead and arriving early. Sintra receives enormous day-trip volume and by midday the shuttle queues are substantial. Two palaces is a realistic day — Pena and Quinta da Regaleira are the strongest pairing.
A tour solves the transport and does not solve the crowding, which is the actual problem.
Where a car is genuinely needed
The Alentejo. Évora is reachable by bus, but Monsaraz on its hilltop, the marble towns of Estremoz and Vila Viçosa, and the Alqueva dark-sky area have minimal connections.
Rent in Lisbon for two or three days and return it before heading to the Algarve.
The historical villages of the Beira interior — Monsanto, Piódão, Sortelha — likewise.
Portugal's electronic tolls are barrier-free with no cash option on many motorways. Request an active transponder at the rental desk or fines arrive later with an administration fee.
Where a tour does earn its place
Douro wine quintas, if you want to taste properly rather than drive.
Foz Côa rock art, which is visited by guided jeep only and must be booked.
Multi-quinta port tastings in Gaia, where a guide adds context about the styles.
Two costs that catch people
Couvert. The bread, olives and cheese put on your table are charged if eaten — €2–5. Normal practice, and waving them away is entirely acceptable.
City tax, €2 per person per night in Lisbon and Porto, charged at check-in and not in the booking price.
Timing
April to June and September to October. July and August are hot and busy on the Algarve, and Lisbon accommodation rises sharply.
Winter is mild on the coast and cheap, with the caveat that Portuguese buildings are frequently unheated — a cheap January room can be colder indoors than out.