Madrid, Valencia, Barcelona in seven nights

01Standing rules

Memorise these four. They decide every departure time in this document, so you never have to recalculate on the road.

Rule 1 — Trains: be on the platform 30 minutes before departure

Spanish long-distance stations run a luggage X-ray and a boarding-pass check before the platform. Gates shut roughly two minutes before departure and the train leaves without you. Thirty minutes is the standing figure for Sants, Atocha and Joaquín Sorolla.

Rule 2 — Leave the hotel 60 minutes before the train

30 minutes of station buffer plus 30 minutes of city transfer. If the hotel is a five-minute walk from the station, 45 minutes is enough — but only if you are already packed.

Rule 3 — The flight home: be inside Terminal 1 by 08:15

This is a non-Schengen departure, so you clear an exit border check with biometric registration on top of normal security. 08:15 for a 10:45 flight gives you 2h30. Do not shave it.

Rule 4 — Buy the flexible train fare on 20 October only

That is the one leg where an upstream delay (the aircraft, the border queue) can make you miss a train. Renfe's Básico fare is not refundable and changes cost extra; Elige allows one free change. Pay the difference on leg 1 and use the cheap fare on legs 2 and 3.

02Where to buy, in this order

Grouped by where you buy. The three items with the red edge (the Euromed, the Sagrada Família slot and the changeable Sants→Madrid fare) sell out or break the plan if you leave them — buy those first; everything else can be bought the week before. Tick as you go — the list remembers itself on this device.

03The three rail legs

All three are direct high-speed services. Times below are the published range — pick the exact service when you book and write it into the day schedules.

04Day by day

Each block gives the clock, the destination and the one departure time that matters. Red times are hard.

05Airport transfers, for reference

Use the taxi both times — arriving with luggage and a booked train, and leaving before dawn. These are the fallbacks.

06If something breaks

You will miss the 13:30 to Madrid

Go to the Renfe Atención al Cliente desk at Sants, not the ticket machines. With the Elige fare you change once for free. Trains to Madrid run every thirty minutes, so the cost is an evening, not a day. If you land on a later train, drop the Gran Vía walk and go straight to dinner.

You will miss the 10:00 Euromed from València

There is no half-hourly fallback here. Two options: take the next Euromed and accept losing the Barcelona afternoon, or go València → Madrid → Barcelona on two high-frequency high-speed legs, which is longer in distance but often faster in practice because of the frequency. Decide at the ticket desk, not on the platform.

Sagrada Família sold out before you booked

Check the official site again at around 08:00 Spanish time — returned and cancelled slots are released back. Failing that, take any slot on Saturday afternoon or Sunday and rearrange around it; with three nights in Barcelona you now have the room to do that. Do not buy from a street reseller.

Someone's luggage does not arrive in Barcelona

File the claim at the airport before leaving — you cannot do it later. Give the Madrid hotel address as the delivery address, not the Barcelona one, and keep the reference number.

07Before you leave Baku

• Passports valid at least three months beyond 27 October, with the Schengen visa dates covering 20–27 October.
• Every train ticket, museum ticket and hotel confirmation downloaded as a PDF or screenshot — station and museum entrances scan the QR code, and phone signal inside Atocha and Sants is poor.
• Travel insurance certificate and the EU-standard emergency number: 112, which works from any phone anywhere in Spain.
• One EU plug adapter per device that matters. Spain uses Type F, the same as Azerbaijan — no adapter needed. Bring a multi-port charger instead.
• Comfortable shoes that are already worn in. This itinerary is roughly 12–15 km of walking a day, much of it on cobbles.
• A light rain layer. Late October in Barcelona and València sits in the low twenties and is the wettest month on that coast; Madrid is cooler, drier and colder after dark.
• Cards work everywhere, but carry €100–150 in cash for market stalls, small bars and the Montserrat rack railway.

08Billeting

One rule decides all three hotels: you must be able to walk to the station you leave from, carrying your bags, in under twenty minutes. That single constraint also puts you inside the historic centre in each city, which is where you want to be anyway. Named properties below are starting points, not endorsements — check current reviews before you book.

The shortlist for two

Seven nights for two, at the lower end of each band: roughly €520–700 for the whole trip, plus about €40 of Barcelona tourist tax. The extra Barcelona night is the most expensive of the seven. Bands are indicative for late October — confirm against live rates.

Madrid, 2 nights (20–22 Oct) — Barrio de las Letras

The literary quarter between Puerta del Sol and the Prado. Atocha is a flat 12–15 minute walk, the Prado 8 minutes, Sol 7, the Royal Palace 20. Every single item on days 2 and 3 starts on foot from here, and the best tapas streets in the city are underneath you.

• €55–80 a night — Hostal Persal, Hostal Marlasca, Hostal Gonzalo. Spanish hostales are small family-run two-star hotels with private en-suite rooms, not dormitories. This is where the real value sits in Madrid.
• €80–110 — Petit Palace Posada del Peine, B&B Hotel Madrid Centro, Hotel Europa.
• Cheaper by 10–15% — shift south to Lavapiés or the Atocha side: Artrip, Hotel Mediodía (directly opposite Atocha station), ibis budget Madrid Centro Lavapiés. Slightly rougher edges, same walking distances.
• Do not book on Gran Vía itself. The street runs at full volume until 3am and the older buildings have no sound insulation. Two blocks off it is quiet.
• Ask for an interior or patio-facing room wherever you book in central Madrid.

València, 2 nights (22–24 Oct) — Ruzafa or the Nord/Ayuntamiento strip

València is the cheapest of the three cities and the most compact. Ruzafa is the neighbourhood locals would send you to: ten to fifteen minutes on foot from Joaquín Sorolla, and about fifteen from the cathedral. The strip between Estació del Nord and Plaza del Ayuntamiento is even closer to the trains and a little more anonymous.

• €55–85 — Casual Vintage València (old town, beside the Silk Exchange and the market), Sweet Hotel Continental.
• €85–110 — Petit Palace Ruzafa, Líbere València Ruzafa, Senator Parque Central.
• Do not book at the beach. El Cabanyal and Malvarrosa look close on a map and are not. It would put a bus ride between you and the 10:00 Euromed on Saturday morning.

Barcelona, 3 nights (24–27 Oct) — right Eixample, between Plaça Catalunya and Plaça Universitat

This one is chosen by the flight home, not by the sights. The Aerobús to the airport leaves from Plaça Catalunya, Plaça Universitat, Gran Via–Urgell and Plaça Espanya. Sleep within five minutes of one of those stops and your 07:15 departure on Tuesday needs no taxi and no booking. Arriving from Sants on Saturday is metro line 3, four stops, about ten minutes.

The same patch puts the Gothic Quarter five minutes south, Passeig de Gràcia five minutes north, and Sagrada Família a twenty-minute walk or two metro stops away.

• €70–95 — Hostal Central Barcelona and the cluster of hostales on Carrer de Pelai and Ronda Universitat.
• €95–140 — the Praktik group (Praktik Rambla, Praktik Èssens, Praktik Bakery), Hotel Catalunya, Dorma Plaza Catalunya, Hotel Reding Croma near Urgell.
• Avoid lower Raval, south of Carrer de l'Hospital, after dark — and avoid Gràcia or Poblenou on a two-night stay, however pleasant, because they add a commute to every movement.
• Barcelona is the most expensive of the three. Budget roughly double what you pay in València.

Four booking rules

• Book the free-cancellation rate, even at a few euros more. Late October is shoulder season and prices often drift down — you can rebook.
• Search on the map, not the list. Drop a pin on Atocha, Joaquín Sorolla and Plaça Catalunya and only look at what falls inside a 15-minute walk. Ignore the words "city centre" in listings entirely.
• Find it on the aggregator, then check the hotel's own site. Small Spanish hostales and the Praktik group often match or beat the price direct and give you a better room for booking with them.
• Specify the bed. Spanish booking pages default to dos camas — two singles. Ask for a cama de matrimonio in the special-requests box or you will get twins, especially in the hostales.
• Book all three now, in one sitting. Barcelona on the nights of 24, 25 and 26 October is the tightest of the three — the Saturday night especially, and the Gaudí centenary year has kept the city full all season.

09Where to click

Official sellers only. Spain has an unusually aggressive resale industry around its landmarks, and the copycat sites rank above the real ones in search results. The rule: if the words tickets or entradas appear in the domain name itself, it is a reseller.

Trains

• renfe.com — the national operator. Sells the AVE and Avlo services on all three of your legs, the Euromed to Barcelona, and it is the only seller of that Euromed. Its payment page rejects non-EU cards at random; PayPal often works where a card does not.
• iryo.eu — private operator, Barcelona–Madrid and Madrid–València. Newest trains on the network, site works properly in English.
• thetrainline.com — sells Renfe, Ouigo and iryo seats in one search at the same fares, with a small booking fee and payment handling that actually works from outside the EU. Use this if Renfe refuses you.
• omio.com — the same idea, second opinion on price.

Madrid

• museodelprado.es — the Prado.
• museoreinasofia.es — Reina Sofía, for Guernica.
• museothyssen.org — Thyssen-Bornemisza, the alternative to Reina Sofía.
• tickets.patrimonionacional.es — Royal Palace. This is the state body's own shop, despite the word in the address.
• teatroreal.es — check the programme for Tuesday 20 and Wednesday 21.

València

• visitvalencia.com — the city tourist board's own shop, and the place to buy the Cathedral, the Miguelete and the City of Arts attractions.
• cac.es and entradas.oceanografic.org — City of Arts and Sciences, and the aquarium.
• La Lonja de la Seda costs €2 at the door and is free on Sundays — no booking needed.

Barcelona

• sagradafamilia.org/en/tickets — the only real seller. Several convincing imitations exist.
• parkguell.barcelona — Park Güell monumental zone.
• casabatllo.es and lapedrera.com — Casa Batlló and La Pedrera. Note two l's in Batlló.
• palaumusica.cat — Palau de la Música, tours and concerts.
• museupicasso.bcn.cat — Museu Picasso, Saturday afternoon.
• liceubarcelona.cat — the opera house, worth a look for Saturday or Sunday night.

Official Catalan sites end in .barcelona, .cat or .es. A .co, .info or .org domain with the monument's name in it is almost always a reseller charging a markup.

Hotels

I am not linking individual hotel pages, because deep links to booking sites expire and I would rather not send you to a dead or wrong page. Search the exact names on booking.com, filter to free cancellation, and switch to map view to confirm the walking distance yourself:

• Madrid — Hostal Persal, Hostal Gonzalo, Hotel Mediodía
• València — Casual Vintage València, Petit Palace Ruzafa, Sweet Hotel Continental
• Barcelona — Hostal Central Barcelona, Praktik Rambla, Praktik Bakery, Hotel Catalunya

Once you have picked one, search its name plus "official site" and book direct if the price matches — the hostales and the Praktik group usually give a better room for it.