The cheapest round-trip from Athens to Madrid is about 132 EUR, usually in June 2026; August 2026 is priciest, so booking the low month saves around 40 EUR (~24%). Typical fare ~132 EUR, from 148 priced fares. Flightmussy live data, updated 2026-06-13.
Cheap flights from Athens (ATH) to Madrid (MAD). Free, no signup, no ads, no tracking. Compare every airline across 12 months of fares on one heatmap — including low-cost carriers Google Flights often deprioritises.
Cheapest round-trip seen: 132 EUR, usually around June 2026. Typical fare ~132 EUR. Across the year prices range roughly 132–172 EUR — about 24% cheaper in the low season than the peak (August 2026). Carriers on this route include Iberia, ITA, Tap Air Portugal, Aegean.
Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-13. Prices change constantly — search live for current fares.
The lowest round-trip fare we found for each month over the coming year — low season versus peak at a glance. June 2026 is cheapest; August 2026 is priciest.
| Jun 2026 | 132 EUR | |
|---|---|---|
| Jul 2026 | 132 EUR | |
| Aug 2026 | 172 EUR | |
| Feb 2027 | 132 EUR | |
| Mar 2027 | 132 EUR | |
| Apr 2027 | 132 EUR | |
| May 2027 | 132 EUR |
Share this finding: post on X · image card for Instagram / WhatsApp.
Flightmussy is a free, independent flight search for travellers anywhere in the world. No signup, no ads, no tracking — email is optional, only for route price alerts. Compare fares across every airline and see 12 months of prices at a glance, including the low-cost carriers Google Flights often buries. Book directly with the airline or a trusted partner — we never add a markup.
Flightmussy runs its own 12-month forward fare scans across thousands of routes worldwide and publishes the data openly. Read the cheapest month to fly almost anywhere → — a global study of when fares are lowest — or browse the cheapest destinations from a city: