What this solves
Most "Santorini vs Mykonos" articles compare sunsets and beaches without telling you the price differential for a real 5-night stay in both. Santorini's caldera-view Oia runs €250–€450/night in shoulder season; Mykonos comparable rooms are €200–€380. This calculator scores both islands against your priorities and shows the actual EUR gap for a 5-night stay — hotel, ferry, and three meals a day — so the choice is yours, not a content-marketing script.
Calculator
How to read the result
The output is two scores (0-10) and a 5-night cost breakdown. Higher score = better fit for your stated priorities. The score weights crowd tolerance, must-have, and party type equally, and adds small adjustments for budget tier and trip length (longer trips penalise islands where you'd burn out in 7 nights).
The cost breakdown uses the budget tier you selected for hotel cost and adds €15/person/day for taverna meals. Ferry cost is one-way Piraeus-Santorini vs Piraeus-Mykonos. The "cost differential" is what you'd save or spend by picking one over the other for the same trip length.
Limitations
- Hotel prices are reference mid-points for shoulder season (May, September). August rates can be 50-100% higher; November-March can be 60% lower on the same property.
- The score is opinionated — it's a transparent weighting, not an oracle. You can disagree with the weights and the calculator still gives you the cost differential, which is the part that matters most.
- "Must-have" is treated as a strong signal. If you must have sunset, Santorini wins even if your crowd tolerance is 1 — you'll just go in April.
- The cost breakdown assumes you stay the whole trip on one island. Most travellers do 2-3 nights Santorini plus 2-3 Mykonos; the calculator doesn't model that combo.
FAQ
When is Santorini cheapest?
Late October and the first 3 weeks of November, after the cruise ships thin out. Mid-April to mid-May is the second-best window: weather is fine, caldera-view rates drop 30% from July.
Is Mykonos really that much of a party island?
In summer, yes — the main strip between Little Venice and the windmills is open till 5am. Outside July/August, Mykonos is a quiet whitewashed village with great beaches. Same goes for Santorini: nightlife exists in Fira but it's not Ibiza-tier.
Can I see both in one trip?
Yes — most travellers do 3 nights each. The fast ferry Santorini-Mykonos (Seajets, 2h, ~€45 deck) and the conventional Blue Star (4-5h) both run daily in summer. Cost: a 3+3 split adds €250-€600 over a single-island stay due to two hotel check-ins and the ferry.
Which has the better beach?
Mykonos, hands down. The sand is finer, the water is cleaner, and the choice is wider (Psarou, Elia, Paradise, Super Paradise, Kalafati). Santorini's beaches are good but volcanic — Red Beach and Perissa have coarse black or red sand and the water is colder. Santorini wins on the sunset, not the swim.
Related tools
Sources
- Booking.com — Santorini Oia caldera-view double rates, May and September 2025 sample dates.
- Ferryhopper — Piraeus-Santorini and Piraeus-Mykonos published fares, summer 2025.
- On-site observation: May 2025 (both islands), September 2025 (Santorini).
About this tool
Built to give an answer that is concrete, not aspirational. Most "Santorini vs Mykonos" articles are written by content marketers for SEO. This one shows you the actual EUR gap and an explicit weighting of why it might still be worth paying €400 more.
Privacy Policy
Aegean Compass does not collect personal data. Calculator inputs (budget, nights, party type) stay in your browser and are not transmitted. We display Google AdSense, which sets cookies for ad personalisation. Opt out at adssettings.google.com, aboutads.info, or youronlinechoices.eu. EEA visitors see a Google consent banner before personalised ads load.
Disclaimer
For informational purposes only. Hotel prices change seasonally and by booking window; verify before paying. We are not affiliated with any Santorini or Mykonos hotel, ferry operator, or tour company.