Plan smarter trips with data, not guesswork.
Fin the fastest, most cost-effective way to travel across Spain and Portugal, based on real travel data.
- Train vs flight to save 45 minutes from Madrid to Barcelona
- Easily find low-cost hotels that match your route
- Calculate CO₂ and traveler costs for informed decisions
FEATURED EVENT
World Cup 2026 Travel Tools
Plan match days with realistic timing, stadium-area strategy, and practical transport tools.
These tools use the same assumptions as our Cost, Time and Carbon comparison pages.
Transport Insights
Occasional analysis on time, cost, and carbon in Iberian Travel.
Explore our tools
Star with the live tools below. New modules launch in stages.
Hotel Transportation Carbon Calculator
Estimate transport-related CO₂e influenced by hotels.
Featured comparison
A decision-ready route breakdown you can trust-built with transparent assumptions.
- Transparent assumptions (no hidden math)
- Door-to-door logic (airport buffers included)
- Research Desk sources (documented & versioned)
- Updated quarterly so comparisons stay current
See our methodology →
Platform status
- Carbon Calculator Hub — Live
- Hotel Transportation Calculator — Live
- Comparisons Hub — Rolling out
- Trip Planner — In development
- Interactive Maps — In development
Start with one question
What’s the lowest carbon option that still fits your time and budget?
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