With nearly 23.8 million international air arrivals between January and September 2025, Greece is experiencing a 5.5% compared to the same period in 2024. These figures, published by the INSETE , confirm that summer 2025 will be anything but ordinary for the Greek tourism sector. For tourism professionals, this is a clear signal: Greece is repositioning itself at a higher level.
Summary
Why summer 2025 is a game changer for Greece
According to INSETE, activity increased by 4.8% in the first quarter and 5.9% in the second, while the July-September period saw a total of 13.5 million arrivals (+5.3%). This growth reflects a dual reality: continued strong demand, both from Europe and long-haul markets, and a supply capable of absorbing increasing volume without major imbalances. For tourism stakeholders, this means that volume alone is no longer enough: differentiation now relies on quality, geographical diversification, and moving upmarket.
Key events of summer 2025
- Athens (AIA) : 7 million international passengers, i.e. +9.6%.
- Thessaloniki : +10% with 2.1 million arrivals.
- Peloponnese (Kalamata, Araxos): +11%, confirming the rise of continental circuits.
- Crete : approximately 4.9 million arrivals (+4.6%).
- Cyclades : decline of -6.4%, particularly in Santorini (-12.8%), due to restrictions on tourist traffic.
What this changes for tourism stakeholders
The INSETE report notes that this is a "mature market, capable of withstanding economic fluctuations while attracting investors." In other words, Greece is consolidating its position as a premium, multi-site destination. For professionals, this presents an opportunity: to adjust products, strengthen margins, and align with a sustainable, high-quality model.
5 concrete actions to take right now
- Map your Greek products and identify areas with high potential (mainland, secondary islands, new air hubs).
- Adapt your marketing messages: "Summer 2025: Greece breaks its records" becomes a key argument to anticipate 2026.
- Check the supply chain: hotel capacity, air and sea links, inter-island transfers.
- Segment your audiences: calm vs dynamism, combined Crete + Peloponnese vs Cyclades.
- Monitor the islands under pressure (Cyclades) to anticipate flow regulations or restrictions.
Table: Three scenarios for Greece after summer 2025
| Scenario | Assumption | Implications for a professional |
|---|---|---|
| Confirmation | Growth continues in 2026 | Accelerate launches, strengthen the premium presence and image. |
| Stabilization | Growth slowed but high level maintained | Optimize yield and prioritize margins over volume. |
| Decline or saturation | Infrastructural pressures or regulations | Diversify the offering and prepare alternatives outside of Greece. |
Frequently Asked Questions
Why talk about summer 2025 right now?
Because the arrival figures between July and September (+5.3%) constitute a strong signal to prepare for the 2026 season.
Should I review all my offers to Greece?
Not necessarily, but flagship products must evolve to adapt to the move upmarket and diversified demand.
Should we prioritize the islands or the mainland?
The mainland (Peloponnese, Thessaloniki) is experiencing strong growth (+10% to +11%). The major islands remain solid, but some areas like the Cyclades are facing tourism restrictions.
What trends can we anticipate for 2026?
More regional airports, upgraded accommodations, diversification towards continental and secondary regions.
How to leverage this "Summer 2025 wave" in communication?
By promoting performance as a guarantee of reliability: "Record-breaking destination, book now." Urgency must remain measured and credible.
Concrete example: the Cyclades are declining
While Greece saw a 5.5% increase in arrivals, the Cyclades experienced a 6.4% decline, particularly Santorini (down 12.8%). For tour operators, this is a warning sign: they must be careful not to rely solely on Santorini or Mykonos. The challenge now is to diversify into less crowded islands.
Key takeaways and actions
- Incorporate the keyword Summer 2025 into your content to capitalize on the trend.
- Review your Greek portfolio: reposition key offers.
- Communicating about performance: "23.8 million arrivals Jan–Sept 2025" is a strong argument.
- Emphasize value and experience, not just volume.
- Anticipating regulations in saturated areas.
- Think ahead to 2026-2027: plan your investments and partnerships now.
Updates
The INSETE bulletin (October 2025) confirms 23.8 million international arrivals from January to September 2025 (+1.2 million compared to 2024). Tourism receipts are projected to reach €16.7 billion from January to August 2025 (+12% according to the Bank of Greece).
Sources
https://news.gtp.gr/2025/10/30/greek-tourism-on-record-breaking-path-in-2025-with-1-2-million-more-air-arrivals/
https://www.tornosnews.gr/en/greek-news/economy/54025-greek-tourism-flying-record-arrivals-revenues-and-short-term-rentals-in-9-months.html
🧔 After turning the entire site pink for Breast Cancer Awareness Month, we're following up with another major initiative: the entire InfosTourisme website is going Movember!
https://infostourisme.com/a-la-une/movember-quand-le-tourisme-saffiche-et-fait-oeuvre-de-prevention/2025/
➡️ Discover our AI tool “Bullshit Alert” to stay informed and avoid being ripped off:
https://infostourisme.com/alertebullshit
