The cheapest round-trip from Dublin to Brussels is about 44 EUR, usually in August 2026; January 2027 is priciest, so booking the low month saves around 42 EUR (~49%). Typical fare ~69 EUR, from 263 priced fares. Flightmussy live data, updated 2026-06-05.
Cheap flights from Dublin (DUB) to Brussels (BRU/CRL). 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: 44 EUR, usually around August 2026. Typical fare ~69 EUR. Across the year prices range roughly 44–86 EUR — about 49% cheaper in the low season than the peak (January 2027). Carriers on this route include Ryanair, Aer Lingus, British Airways, 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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