AI Trip Planners Are Great at the Wrong 90% of Travel

Look, I've been to 40-something countries on a budget that would make a financial advisor cry, and I've tested every AI trip planner that's launched in the last two years. Here's the thing nobody says out loud: they're all excellent at the part of travel that doesn't matter.

Forty-one percent of travelers now say they use AI to plan trips. That's a real number, from real surveys, and it's climbing. So this isn't a niche thing anymore. It's how people book.

And they're all getting the same trip.

That's the problem. Ask five AI planners for three days in Lisbon and you'll get five itineraries that are 80% identical: Belém, Time Out Market, a tuk-tuk tour someone's cousin runs, sunset at a miradouro. All fine. All correct. All the same trip that three million other people are taking at the same time.

The 90% AI nails is logistics. Flight times, visa rules, currency, transit passes, opening hours. That's genuinely useful and I'm not being sarcastic. Ten years ago I spent whole evenings in hostels cross-referencing bus timetables by hand. I do not miss it.

The 10% AI cannot do is the part you actually remember.

The four-hour window problem

Most AI itineraries fail on a single mechanical detail: they don't model energy.

They'll happily schedule you for a museum at 10am, a walking tour at 1pm, a food market at 4pm, and dinner at 7pm. Four things. Reasonable on paper. Completely unrealistic on day two of a trip when your body is still on Lagos time and you've walked 14km.

Nobody tells you this because it doesn't fit in a blog post: travel is a physical activity with a cognitive load, and the planner tools treat you like a resource with unlimited throughput.

My rule, tested across four continents, is two anchor activities per day. One morning, one evening. Everything in between is slack. When I plan trips by hand I always leave that slack and it always gets used, either by something I found walking around or by a nap I badly needed.

AI planners will fill the slack every single time, because empty time looks like an incomplete answer.

What they get wrong about money

Ask an AI for a budget for two weeks in Thailand and you'll get a number. That number is usually wrong in a specific direction: it's the number for the trip as designed by someone optimizing for a spreadsheet review, not for a human having a good time.

It'll tell you $40 a day is comfortable. It will not tell you that the $40-a-day version of the trip means eating the same three meals, staying in a room with no window, and skipping the one thing you came for because it costs $60.

The budget isn't the issue. The variance is. Plan for a base and a blowout. Base covers bed, food, transport. Blowout covers the thing you'll regret skipping. AI never plans blowouts.

Where the tools are actually strong

Be fair to them. Use AI for:

• Visa and entry requirements. It's genuinely faster than embassy websites, and it's been right every time I've checked it against the official page in the last year. Still verify. But it gets you to the right page.
• Transit logic. "How do I get from Kansai Airport to Namba with a heavy bag at 11pm" is a question AI answers better than any forum thread.
• Drafting the shell. Let it build the skeleton. Two anchors a day, then you fill.

The one metric that beats every planner

Track how many hours of your trip were spent doing something you didn't plan. If it's zero, you didn't travel. You executed. The planners will happily help you execute, because execution is measurable and wandering isn't.

What to do differently

Plan backwards. Pick the two things you'd be gutted to miss in each city. Put those in. Then let AI fill the connective tissue, and delete half of what it adds.

Bring a local. Not a guide, a person. Message someone who lives there, or use a tool that connects you with one. The best meals I've had in 40 countries were all recommended by someone standing in front of me, and none of them were in an itinerary.

And budget for the unplanned. Ten percent, minimum. Not as a cushion, as an actual line item. The unplanned thing is the trip. Everything else is transport between the moments you'll actually talk about.

AI got very good at the scaffolding. It's still useless at the thing you'll remember in ten years, which is the afternoon you threw the plan away because someone said come with us.

And one more thing, because I've made this mistake twice. Book the first night somewhere boring and easy. Not the beautiful place up the hill with the view. Somewhere near transit, with a real door, where a tired person can arrive at midnight and sleep. You can have the beautiful place on night three when you actually know where you are.

Stay curious, stay paranoid.