The cheapest round-trip from Brussels to Geneva is about 90 EUR, usually in September 2026; May 2027 is priciest, so booking the low month saves around 61 EUR (~41%). Typical fare ~95 EUR, from 270 priced fares. Flightmussy live data, updated 2026-06-05.
Cheap flights from Brussels (BRU/CRL) to Geneva (GVA). 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: 90 EUR, usually around September 2026. Typical fare ~95 EUR. Across the year prices range roughly 90–151 EUR — about 41% cheaper in the low season than the peak (May 2027). Carriers on this route include easyJet, Brussels Airlines, SWISS.
Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-05. Prices change constantly — search live for current fares.
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