The cheapest round-trip from Brussels to Cologne is about 245 EUR, usually in July 2026; June 2026 is priciest, so booking the low month saves around 61 EUR (~20%). Typical fare ~284 EUR, from 60 priced fares. Flightmussy live data, updated 2026-06-04.
Cheap flights from Brussels (BRU/CRL) to Cologne (CGN). 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: 245 EUR, usually around July 2026. Typical fare ~284 EUR. Across the year prices range roughly 245–306 EUR — about 20% cheaper in the low season than the peak (June 2026). Carriers on this route include Brussels Airlines, Austrian, Eurowings, Air Baltic.
Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-04. Prices change constantly — search live for current fares.
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