I Let AI Plan My Entire 10-Day Trip — Here's What Happened

Last October, I did something that would've made 2019-me cringe: I handed my entire 10-day Portugal trip to an AI and booked almost everything it suggested. No Reddit deep-dives. No 47-tab browser sessions. No color-coded spreadsheet. Just a prompt, a plan, and a one-way ticket to Lisbon. This is my honest ai planned trip review — what worked, what flopped, and why I'll probably never plan a trip the old way again.

The Setup

I've been to Europe a handful of times but never Portugal. Knew the basics — pasteis de nata, port wine, tile everything — but had no real itinerary instincts for the country. Perfect test case.

I opened Voyaige's Discovery tool and typed something like: "10 days in Portugal, mid-October, mix of cities and coast, good food matters more than museums, budget around €120/day not counting flights."

Within minutes, I had a day-by-day itinerary covering Lisbon (4 nights), Sintra (day trip), a train to Porto (3 nights), a Douro Valley day trip, and the Algarve coast (2 nights) before flying home from Faro. It split things into morning, afternoon, and evening blocks — not in an overbearing way, more like a friend who's been there saying "here's what I'd do."

I tweaked a few things using the Vet feature to sanity-check logistics. Then I booked it. All of it.

Here's what actually happened.

Day-by-Day Highlights

Not going to bore you with all ten days. Here are the moments that stood out.

Day 2: Getting Lost in Alfama (On Purpose)

The AI suggested skipping Belem until afternoon and spending the morning wandering Alfama with no fixed agenda — just "walk uphill, follow the sound of fado, eat when hungry." Honestly? Best travel advice I've ever received from any source, human or machine.

I ended up at Taberna Sal Grosso, a tiny spot around the corner from Santa Apolonia station that still feels like a neighborhood secret. Chalkboard menu, petiscos-style plates, and a glass of vinho verde for about €20 total. The kind of place you'd never find on a curated "Top 10 Lisbon" listicle, but exactly where you want to be on a Tuesday at 1 PM.

My Airbnb in Alfama was €68/night — small terrace, view of the Tagus, a 10-minute walk to everything. The AI specifically recommended staying in Alfama or Mouraria over the trendier Principe Real neighborhood, noting that October prices in the historic quarters drop 20-30% compared to summer. It was right.

Day 4: The Sintra Half-Day

Here's where it did something smart: it only scheduled Sintra for a half day. Every human travel blogger I've read treats Sintra as a full-day commitment. The suggestion: "Visit Pena Palace first thing (book the 9:30 timed entry, €10 for gardens), then take the 434 bus back to the station by noon and train to Cascais for the afternoon."

This was genius. Pena Palace is gorgeous but you're done in two hours. The crowds get brutal by 11 AM. By the time the tour groups were clogging the narrow paths, I was already on a train to Cascais eating a bifana on the seafront. Two destinations in one day, neither felt rushed.

One tip it missed: avoid the touts outside Sintra train station. They're aggressive and overpriced. Just walk past them and take the public bus.

Day 6: Lisbon to Porto on the Alfa Pendular

The itinerary had me on the Alfa Pendular high-speed train from Santa Apolonia to Porto Campanha — 2 hours 48 minutes, €34 in second class. It even flagged that I should book a few days early because October trains sell out, especially the morning departures.

Porto hit different from Lisbon. Grittier, more compact, less polished in the best way. My guesthouse was in Miragaia, a residential neighborhood on the river about a 15-minute walk from the Ribeira tourist zone. Nightly rate was roughly €30 cheaper than staying in Ribeira itself, and the neighborhood had better restaurants.

Day 7: Douro Valley

This was Voyaige's Discovery tool at its best. It suggested a specific self-guided approach: take the morning train from Porto Campanha to Peso da Regua (about 2 hours, €20 round trip), visit two quintas for tastings, and catch the late afternoon train back. Most blogs push the €90-150 guided tour packages. Voyaige calculated that I could do it independently for about €55 total including train, two tastings, and lunch.

Was it as seamless as a guided tour? No. I had to figure out the local bus from the station to the first quinta, and there was a 40-minute gap where I just sat on a bench overlooking the terraced vineyards eating bread and cheese I'd bought at the station. But that gap turned into one of my favorite moments of the entire trip. Sometimes the best travel experiences are the ones nobody planned.

Day 9: Lagos and the Algarve Coast

The plan routed me from Porto to Lagos via a budget flight to Faro (about €45 on TAP) and then a regional train to Lagos. Smart move — the overland route would've eaten an entire day.

Lagos in October is a different planet from Lagos in July. The beaches were empty. I walked the cliffs above Praia Dona Ana without seeing another person for twenty minutes. Dinner at A Forja, a local institution for no-frills grilled fish, came to about €18 including wine. It'd been flagged as a "local favorite, not a tourist spot" — accurate.

What the AI Got Right

Pacing. This is the big one. The itinerary never had me sprinting between eight attractions in a day. It built in buffer time, wandering time, "sit in a cafe and do nothing" time. Most human-planned itineraries I've used pack too much in. It seemed to understand that travel fatigue is real.

Neighborhood picks. Alfama over Principe Real in Lisbon. Miragaia over Ribeira in Porto. Both saved me money and put me closer to actual local life. It weighted "walkability to key areas" against "price per night" and found the sweet spots.

Logistics sequencing. The south-to-north-to-south routing (Lisbon, Porto, Algarve, fly out of Faro) sounds counterintuitive, but it avoided backtracking to Lisbon for a return flight and saved about €80 compared to a round-trip from Lisbon.

Hidden gems. The Douro Valley self-guided approach. The Sintra half-day hack. Suggesting I eat lunch at tascas (traditional taverns) where the prato do dia — a full three-course lunch with drink — runs €8-12. These weren't generic suggestions. They felt like advice from someone who'd actually been there and done the math.

What It Missed

I want to be honest here because no ai planned trip review should pretend the technology is flawless.

Restaurant specificity was hit-or-miss. Neighborhood-level dining recommendations were spot on (eat in Mouraria, avoid the Ribeira waterfront restaurants in Porto) but some specific restaurant names either didn't exist anymore or had changed names. One "traditional tasca" in Porto turned out to have been converted into a co-working space. I learned to use the restaurant picks as starting points, not gospel — walk to the neighborhood it suggests, then look for the place with the most locals inside.

It underestimated Lisbon's hills. The walking routes looked reasonable on a flat map. In reality, Lisbon is vertical. A "15-minute walk" from Baixa to the Miradouro da Graca is 15 minutes of steep cobblestone climbing. It should've flagged this and suggested the 28 tram or at least warned me to wear proper shoes on day one. I learned the hard way in sandals.

No local event awareness. There was a wine festival happening in Porto the weekend I was there. The itinerary didn't mention it. Only found out because the guesthouse owner told me. This is where AI still lags behind a knowledgeable local — it can optimize logistics, but it doesn't always know what's happening on the ground right now.

Algarve felt slightly rushed. Two nights in Lagos wasn't enough. The itinerary optimized for covering three regions in ten days, which is the right instinct, but I would've cut one Lisbon night and given it to the Algarve. The coast deserves slow time.

The Verdict

Would I let AI plan my trip again? Yes. Without hesitation.

But I'd use it differently now. The AI is great at the structural work — routing, pacing, budget optimization, neighborhood selection, logistics. It's the best first draft of a trip I've ever had. What it needs is a human layer on top: your preferences, your willingness to deviate, and a quick sanity check against current local conditions.

Think of it less like "AI replaces travel planning" and more like "AI does in 10 minutes what used to take me 10 hours, and I spend the saved time on the parts that actually matter — reading up on the culture, learning a few Portuguese phrases, and actually getting excited instead of stressed."

My Portugal trip cost roughly €1,350 all-in for ten days (excluding flights), which breaks down to about €135/day. That covered accommodation, food, transport, activities, and a few too many glasses of port in Porto. The plan kept me close to my €120/day target, and honestly, the places where I went over budget were my own choices (that second bottle of Douro red wasn't in the plan, but it was necessary).

The 10-hour planning sessions I used to do? The spreadsheet anxiety? The fear that I was missing something obvious? Gone.

Plan Your Own Trip

If this sounds like the way you want to travel — with a smart starting point and the freedom to make it your own — give Voyaige a shot. The Discovery tool builds your itinerary. Field Notes let you capture the changes you make on the ground. And Vet checks your plan for logistical red flags before you book anything.

I went to Portugal expecting to test an AI travel planner. I came home a convert.

Ready to let AI plan your next trip? Start with Voyaige.