How This Route Works

Three weeks is enough time to see four very different versions of Spain without spending half your trip on trains. This itinerary moves in one direction: Madrid, up to Barcelona and Valencia on the coast, down into Andalusia for the Moorish south, then a flight north to the Basque Country before looping back to Madrid to fly home. Nothing is doubled back on, and every city gets at least two nights.

I’ve built in one flexible day (day 20) for whichever place pulled you in hardest, because it always happens somewhere. Maybe it’s an extra afternoon in the Alhambra gardens, maybe it’s a second night of pintxos crawling in San Sebastián. Leave it open.

Days 1–3: Madrid & Toledo

Gran Vía, Madrid’s main avenue, is a good first walk to shake off jet lag. Photo: Jorge Fernández Salas / Unsplash.

Madrid doesn’t try to charm you the way Barcelona or Seville do. It’s a working capital with wide boulevards, three world-class museums within walking distance of each other, and some of the best late-night food culture in the country. Two full days is the minimum to get a real feel for it.

Day 1: Arrival and the historic center

If you land at Madrid-Barajas in the morning, the Cercanías C1 line gets you into Atocha station in about 25 minutes. Spend the afternoon on foot: Puerta del Sol, Plaza Mayor, and the narrow streets of La Latina, which fills up with vermouth bars by early evening. Save your energy for dinner after 9pm, which is normal here, not late.

Day 2: The Golden Triangle of art

If you have any appetite left for art, the Thyssen-Bornemisza and Reina Sofía (home to Picasso’s Guernica) sit within a ten-minute walk of the Prado, forming what locals call the Paseo del Arte. Trying to do all three in one day is a good way to stop looking at anything closely, so pick two. Finish the afternoon in Retiro Park, especially around the Crystal Palace and the boating lake.

Day 3: Day trip to Toledo

Toledo’s old town sits on a rocky bend of the Tagus River, about 30 minutes from Madrid by train. Photo: Alex Quezada / Unsplash.

Toledo was Spain’s capital before Madrid and still carries the layered history of a city where Christian, Muslim, and Jewish communities coexisted for centuries. The AVE from Madrid’s Atocha station takes about 30 minutes and drops you a short walk from the old town walls. A day is enough to see the Cathedral, the Alcázar, and Santo Tomé’s El Greco painting, then wander the old Jewish quarter before the last train back.

Days 4–7: Barcelona & Valencia

La Sagrada Família, still under construction after more than 140 years. Photo: Chrishaun Byrom / Unsplash.

Day 4: Madrid to Barcelona

The AVE covers the roughly 500 km between Madrid and Barcelona in as little as 2 hours 30 minutes on the fastest direct services, though most direct AVE trains run closer to 3 hours. With around 30-plus daily departures split across Renfe, Avlo, iryo, and Ouigo, fares range widely: promotional seats can start around €35, while a same-week Renfe AVE Tourist ticket often runs €60–€95. Book at least two to three weeks ahead if your dates are fixed.

Day 5: Gaudí day

Pair the basilica with Park Güell in the morning or evening light, then walk the Passeig de Gràcia to see Casa Batlló and La Pedrera from the outside, both worth a look even if you skip the entry fee.

Day 6: Gothic Quarter and the coast

Spend the morning in the Barri Gòtic and El Born, where Roman ruins sit beneath medieval streets, then walk down to Barceloneta for lunch by the water. The beach here isn’t Spain’s best, but an afternoon swim after two museum-heavy days does something for morale that no cathedral can.

Day 7: Barcelona to Valencia

Valencia’s City of Arts and Sciences sits on the site of the old Turia riverbed. Photo: Diego Olguín / Unsplash.

The high-speed train to Valencia takes under two hours. Valencia is where paella actually comes from, and it shows: this is the one city on the route where I’d tell you to book a lunch reservation ahead rather than wing it. Spend the afternoon at the City of Arts and Sciences, Santiago Calatrava’s cluster of white, futurist buildings built over the old riverbed, then walk the old town’s Cathedral and Central Market before dinner.

Days 8–13: Granada, Seville, Córdoba & Ronda

This is the heart of the trip for most people, and it’s also the stretch where advance planning matters most, because the Alhambra sells out.

Day 8: Valencia to Granada

There’s no direct high-speed line between Valencia and Granada, so you’ll typically connect through Madrid (roughly 5 to 5.5 hours total) or fly. Either way, arrive with enough daylight to walk the Albaicín, Granada’s old Moorish quarter, for sunset views of the Alhambra from the Mirador de San Nicolás.

Day 9: The Alhambra

The Alhambra complex includes the Nasrid Palaces, the Alcazaba fortress, and the Generalife gardens. Photo: David Vives / Unsplash.

Give this a full day. The Nasrid Palaces alone reward slow walking through the Court of the Lions and the Court of the Myrtles, and the Generalife gardens are worth the extra time even in midsummer heat, since the water channels and cypress hedges keep it noticeably cooler than the streets below.

Day 10: Granada to Seville

Direct trains between Granada and Seville run in a little under three hours. Use the afternoon for a first pass at the Seville Cathedral (the largest Gothic cathedral in the world) and the Real Alcázar, still a working royal residence and one of the best surviving examples of Mudéjar architecture in Spain.

Day 11: Seville proper

Plaza de España, built for the 1929 Ibero-American Exposition. Photo: Taisia Karaseva / Unsplash.

Plaza de España, in María Luisa Park, is worth an unhurried morning walk along its tiled alcoves, each representing a different Spanish province. In the evening, book a flamenco show in Triana, the neighborhood where the art form has some of its deepest roots, rather than one of the tourist-menu venues near the cathedral.

Day 12: Day trip to Córdoba

The forest of striped arches inside the Mezquita-Catedral, built over more than two centuries starting in 785 CE.

The AVE from Seville to Córdoba takes about 45 minutes, which makes this an easy day trip. The Mezquita-Catedral is the reason to come: a mosque converted into a cathedral, where a 16th-century Renaissance nave sits, almost jarringly, in the middle of hundreds of horseshoe arches. Add an hour for the old Jewish Quarter nearby before heading back to Seville for the night.

Day 13: Day trip to Ronda

Puente Nuevo spans a 120-metre gorge and took 34 years to build, finishing in 1793.

Ronda sits on either side of a cliff-top gorge, connected by the Puente Nuevo bridge. It’s reachable from Seville by direct train or bus in about two hours. Walk both sides of the gorge, including the path down into it for the classic view of the bridge from below, and try the local wine at one of the bodegas near the old bullring, one of Spain’s oldest.

Days 14–18: San Sebastián & Bilbao

There’s no practical overland route from Andalusia to the Basque Country that doesn’t eat a full day on connections, so this leg starts with a flight, usually Seville to Bilbao, with a bus or train onward to San Sebastián in about an hour.

Days 14–16: San Sebastián

La Concha Bay, seen from Urgull Mount, is one of Europe’s better urban beaches. Photo: Quick PS / Unsplash.

San Sebastián is built around La Concha, a curved, sheltered beach that sits right against the old town. This city has more Michelin stars per capita than almost anywhere in the world, but the real food culture lives in the pintxos bars of the Parte Vieja, where you order two or three small plates standing at the bar, then move on to the next place. Spend one day walking the coastal path to Monte Igueldo, one on Zurriola beach if you surf or want to watch people who do, and reserve a proper evening for a pintxos crawl through the old town.

Days 17–18: Bilbao

The Guggenheim Museum Bilbao, designed by Frank Gehry and opened in 1997, remade the city’s riverfront. Photo: Hans-Jürgen Weinhardt / Unsplash.

Beyond the museum, Casco Viejo (the old town) has its own pintxos scene worth comparing to San Sebastián’s, and it’s noticeably less crowded. If the weather’s decent, take the century-old Bilbao funicular up Artxanda for a full city view.

Days 19–21: Back to Madrid

The AVE from Bilbao to Madrid runs a little over 5 hours; flying takes about 1 hour 10 minutes and is often the better choice if you’re short on time by this point in the trip. Use day 19 for the return journey, keep day 20 open as your flex day for wherever you fell behind or fell in love, and treat day 21 as departure day, with a final Madrid breakfast before heading to the airport.

Full 21-Day Itinerary at a Glance

Budget Guide

Andalusia and Valencia run noticeably cheaper than Barcelona, San Sebastián, or Bilbao, so these figures are trip-wide averages rather than fixed daily rates. They cover accommodation, food, local transport, and one paid attraction, but not the long-distance trains and flights covered in the transport table below.

Museum and monument entry adds up fast on this route. Budget roughly €120–€150 per person just for the Alhambra, Sagrada Família, Prado, and Guggenheim if you plan to see all four, more if you add tower access or guided tours.

Getting Between Cities

Renfe, iryo, Avlo, and Ouigo all serve the Madrid–Barcelona corridor, and comparison sites make it easy to check all four at once. On routes with only one operator, book earlier for a better price; fares climb as departure gets closer, same as airline pricing.

Food Guide

Paella Valenciana, best eaten in Valencia at lunch, its traditional time of day.

Spain’s food culture changes by region as much as its architecture does, and it’s worth eating with that in mind rather than ordering the same dishes everywhere.

• Madrid: cocido madrileño (chickpea and meat stew), bocadillo de calamares. Vegetarian options are improving but still limited outside the city center.
• Barcelona & Valencia: paella (a lunch dish, traditionally, not dinner), pa amb tomàquet, fideuà for a seafood-and-noodle variation.
• Andalusia: gazpacho and salmorejo in summer, jamón ibérico everywhere, fried fish (pescaíto frito) along the coast.
• Basque Country: pintxos rather than tapas (smaller, usually served on bread, and you keep your toothpicks to tally the bill), plus bacalao al pil-pil and txuletón steak.

Halal options are limited outside the largest cities; Madrid and Barcelona have the most reliable availability. Vegetarian travelers will eat well in Barcelona and Valencia and need to plan ahead more carefully in smaller Andalusian towns.

Entry Rules, Packing & Practical Tips

Entry requirements

Spain is part of the Schengen Area, and most visitors from visa-exempt countries can still enter with just a valid passport, as of mid-2026. That’s changing: the EU’s ETIAS travel authorization is expected to launch in a soft-launch phase in the last quarter of 2026, after the Entry/Exit System (EES) beds in at land, sea, and air borders. Once ETIAS is required, it will cost around €20 for most applicants, cover stays of up to 90 days in any 180-day period, and take about 20 minutes to apply for online. It has been delayed multiple times before, so treat any specific date with some skepticism and check the official EU travel portal close to your departure date. Spain’s own entry conditions, including proof-of-funds guidance, are listed on the Spanish Ministry of Foreign Affairs consular site.

SIM cards and connectivity

EU-based SIMs and eSIMs from providers like Orange, Vodafone, or Movistar are easy to buy on arrival at either Madrid or Barcelona airport. If your home carrier offers EU roaming, check the data allowance before you go, since Spain’s cities involve a lot of map-checking.

Tipping

Tipping isn’t obligatory in Spain the way it is in the US. Rounding up or leaving 5–10% for good restaurant service is appreciated but not expected, and it’s rarely done at all for bars or pintxos counters.

Family, solo & digital nomad notes

Families will find Barcelona and Valencia the easiest going, with beaches and interactive science museums to break up the culture-heavy days. Solo travelers tend to gravitate toward Seville and Granada, where hostel culture and free walking tours make it easy to meet people. Digital nomads will find San Sebastián and Bilbao quieter and better set up for reliable co-working cafés than the more tourist-saturated south, though Madrid still has the widest choice of dedicated coworking spaces.

Sustainability

Choosing the train over short domestic flights cuts emissions substantially on every leg of this route except the Andalusia-to-Basque-Country jump, where flying is close to unavoidable given the distance and lack of a direct line. Andalusia in particular has struggled with overtourism pressure on water resources in recent years, so shorter showers and reusable water bottles go further there than they might elsewhere.

Safety & accessibility

Spain is, broadly, a safe country for visitors, and violent crime against tourists is rare. Pickpocketing is the main practical risk, concentrated around Barcelona’s Ramblas, the Barcelona metro, and busy squares in Madrid and Seville; keep bags zipped and in front of you in crowds. For accessibility, Madrid and Barcelona have the most wheelchair-accessible metro networks; smaller Andalusian old towns, with their cobblestones and steps, are considerably harder going, and the Alhambra in particular has limited step-free routing through parts of the Nasrid Palaces.

Frequently Asked Questions