The Best Alternative to Santorini: Why Milos Should Be Your Next Greek Island

The Santorini Problem

Santorini is one of the most photographed places on earth. The blue-domed churches, the caldera sunsets, the whitewashed clifftop villages — it's the Greek island fantasy distilled into a single destination.

It's also one of the most overcrowded places on earth.

The island hosted 3.4 million tourists in 2023 and saw 800 cruise ships dock, all for a resident population of just 15,500, according to Greek national tourism data. Before the 2025 cruise cap, daily surges of 11,000 to 17,000 cruise passengers were routine, according to CNN and The National Herald. The narrow streets of Oia become shoulder-to-shoulder queues. Mid-range hotels average around $150 per night, but high-season rates climb toward $284, per Kayak and Budget Your Trip aggregated data. Restaurants near the caldera have hour-long waits. Greece introduced an 8,000-per-day cruise passenger cap for Santorini in 2025, along with a €20 per-passenger fee, but even with limits in place, the island remains one of Europe's most overtouristed destinations.

If you've been dreaming of Santorini, we're not telling you to abandon the dream. We're telling you there's a better version of it.

Enter Milos

Milos is a volcanic island in the western Cyclades, roughly 90 nautical miles from Santorini. It has the same geological DNA — dramatic cliff formations, volcanic rock in shades of white, red, and ochre — but a fraction of the visitors.

Where Santorini has become a luxury brand, Milos has remained a place. Fishing boats still line the harbors. Tavernas still serve food made by the owner's family. You can still find a beach where you're the only person there.

And the beaches — this is where Milos genuinely surpasses Santorini. The island has over 70 beaches, many of them accessible only by boat or footpath. Sarakiniko, with its lunar-white rock formations carved by wind and sea, is unlike anything in the Cyclades. Kleftiko, a cluster of sea caves and arches on the southwest coast, looks like it belongs in a nature documentary. Santorini's beaches, by comparison, are narrow, crowded, and mostly volcanic black sand.

The Numbers Don't Lie

Here's what the data shows when you put these two islands side by side:

Crowd factor: Santorini draws 3.4 million visitors per year, according to Greek tourism statistics. Milos doesn't publish island-level figures, but the difference is qualitative as much as quantitative: Milos has no cruise ship port, no mass day-tripper infrastructure, and no streets that require crowd control. In practical terms, this means beaches that aren't full by 9 AM, restaurants where you can walk in and sit down, and alleys you can actually walk through.

Average hotel cost: This one is more nuanced than the headline suggests. According to Budget Your Trip, the average hotel on Santorini runs $152 per night, while Milos averages $165. In high season, Santorini climbs to around $284 and Milos to $308. The islands are roughly comparable on accommodation price. Where Milos saves you money is everywhere else: food, transport, and activities are noticeably cheaper because the island hasn't developed the luxury markup that Santorini commands. You also won't feel pressured into the €50-per-person waterfront dinner that's become standard in Fira.

Weather: Virtually identical. Both islands sit in the Cyclades and share the same climate. Santorini averages 26.6°C in July; Milos averages 26.5°C, according to Weather Spark and Climate-Data.org. Both get minimal July rainfall (under 10mm), roughly 14 hours of daily sunshine, and the same meltemi winds that keep the heat bearable.

Vibe match: Volcanic coastline, Cycladic village architecture, fresh seafood, warm hospitality. If what draws you to Santorini is the Greek island experience — rather than the specific Instagram backdrop of Oia — Milos delivers the same thing with more authenticity and less friction.

What Milos Has That Santorini Doesn't

The beaches. This deserves repeating. Santorini has roughly 15 beaches, most of them small and packed. Milos has over 70, ranging from white moonscapes to red volcanic coves to turquoise lagoons. Firiplaka, Tsigrado, and Papafragas are consistently ranked among the best beaches in Europe.

The fishing villages. Klima, Mandrakia, and Firopotamos are traditional fishing settlements where brightly painted boat garages (called syrmata) line the waterfront. These are some of the most photographed spots in Greece — and you'll often have them to yourself in the morning.

The mining history. Milos has been mined for obsidian, sulfur, and kaolin for thousands of years. The ancient catacombs — the only preserved catacombs in all of Greece, and considered the third most important early Christian burial site after the Holy Land and Rome, according to the Greek Ministry of Culture — and the abandoned sulfur mines at Paliorema Beach give the island a depth of history that Santorini's tourist-facing culture has largely polished away.

Breathing room. This is the intangible one. On Milos, you can rent an ATV and explore the island's dirt roads without being stuck behind a queue of tour buses. You can watch the sunset from Plaka Castle without 500 other people jostling for position. The pace is slower, the energy is calmer, and the island still feels like it belongs to the people who live there.

What Santorini Has That Milos Doesn't

We'll be honest about the trade-offs.

The caldera. Santorini's volcanic caldera is a genuinely unique geological formation, and the villages built along its rim — Oia, Fira, Imerovigli — offer a visual experience that Milos can't replicate. If the caldera itself is the reason you want to visit, no alternative will substitute for it.

The luxury infrastructure. Santorini has five-star cliff-edge hotels, Michelin-adjacent restaurants, and a nightlife scene that Milos simply doesn't match. If you're looking for a high-end resort experience, Santorini is more developed for that market. (For a similar dynamic on the Adriatic coast, see our Kotor vs Dubrovnik comparison.)

Direct international flights. Santorini's airport receives direct flights from many European cities. Milos has a small airport with domestic connections from Athens (a 40-minute flight on Olympic Air or Sky Express), or you can take a ferry from Piraeus (2.5–3.5 hours on a high-speed vessel, 4–6.5 hours on a conventional ferry).

How to Get to Milos

From Athens: The most common route. Fly from Athens to Milos (about 40 minutes, operated by Olympic Air and Sky Express, with flights starting around €48 one-way in off-peak months). Or take a ferry from Piraeus — high-speed vessels take 2.5–3.5 hours, conventional ferries take 4–6.5 hours. Summer sees up to 7 daily departures, according to Ferryhopper. Standard economy fares run €70–100.

From Santorini: If you want to do both islands, a direct ferry runs between Santorini and Milos in about 2.5 hours during the summer season. This makes it easy to spend a few days on each.

Best time to visit: June and September are the sweet spot — warm enough for swimming, dry, and significantly less crowded than July and August. May and October are also viable if you don't mind slightly cooler water.

The Bottom Line

Santorini became famous because of what it is: a volcanic island in the Aegean with dramatic beauty and Cycladic charm. Milos shares that geological DNA and that Cycladic character, without the 3.4 million annual visitors, the cruise ship surges, or the pressure to spend €50 on lunch.

For the traveler who values the experience over the brand name, Milos isn't a compromise. It's an upgrade.