Overview
This route treats Portugal and northern Spain as one region rather than two separate trips, which is how the geography and the trains actually connect them. It stays on the coast, keeps travel days short (nothing over 3.5 hours by train), and leaves two full rest days with no plan at all – the kind of pacing that’s easy to describe in a sentence and hard to hand-build yourself without over-scheduling.
The figures below are illustrative, per-person estimates for a mid-range trip (private rooms, sit-down meals, a mix of trains and local transit) – not live pricing. Run this same route through the planner for current, itemized numbers.
Day by day
| Day | Stop | Notes | Est. cost (USD) |
|---|---|---|---|
| 1–3 | Lisbon | Alfama and Belém on foot; one day trip to Sintra | 280–460 |
| 4–5 | Porto | Direct train from Lisbon, ~2h45; port wine cellars in Vila Nova de Gaia | 210–340 |
| 6 | Santiago de Compostela | Train via Vigo; old town, no fixed itinerary | 100–170 |
| 7–8 | San Sebastián | Bus or train via Bilbao; pintxos crawl, Playa de la Concha | 240–410 |
| 9–10 | San Sebastián (rest days) | Deliberately unplanned | 150–370 |
Total does not include international flights in/out, since those vary too widely by origin city to give a useful range here.
Why this route works
Lisbon and Porto are the obvious anchors, but most itineraries either stop there or bolt on a rushed day trip into Spain. Santiago de Compostela sits almost exactly between Porto and San Sebastián on the rail network, so it becomes a natural one-night stop instead of a detour – and San Sebastián gives the trip a genuinely different register (Basque food, a proper beach) to close on, rather than ending on the same Portuguese-city rhythm it started with.
FAQ
Is October a good time for this route? Yes – shoulder season keeps Lisbon and Porto walkable without July/August crowds and heat, and San Sebastián’s beach weather usually still holds into early October.
Do I need to rent a car? No. Every leg above runs on train or long-distance bus; a car adds cost and parking hassle without much benefit for this coastal route.
Can I compress this to 7 days? Yes, by dropping the two rest days and Santiago de Compostela to a same-day layover instead of an overnight – describe that version to the planner and it’ll re-price it.