The cheapest round-trip from Athens to Lisbon is about 144 EUR, usually in January 2027; June 2026 is priciest, so booking the low month saves around 102 EUR (~42%). Typical fare ~159 EUR, from 330 priced fares. Flightmussy live data, updated 2026-06-13.
Cheap flights from Athens (ATH) to Lisbon (LIS). 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: 144 EUR, usually around January 2027. Typical fare ~159 EUR. Across the year prices range roughly 144–246 EUR — about 42% cheaper in the low season than the peak (June 2026). Carriers on this route include Vueling, Aegean, Air France, Lufthansa.
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. January 2027 is cheapest; June 2026 is priciest.
| Jun 2026 | 246 EUR | |
|---|---|---|
| Jul 2026 | 233 EUR | |
| Aug 2026 | 219 EUR | |
| Sep 2026 | 184 EUR | |
| Oct 2026 | 159 EUR | |
| Nov 2026 | 153 EUR | |
| Dec 2026 | 149 EUR | |
| Jan 2027 | 144 EUR | |
| Feb 2027 | 151 EUR | |
| Mar 2027 | 149 EUR | |
| Apr 2027 | 158 EUR | |
| May 2027 | 191 EUR |
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