The best time to book your flight from Cologne to Brussels is 42 days before departure. See how prices for flights change on the Cologne to Brussels route.
Prices are for one-way tickets for one passenger from Cologne to Brussels per month. Insights are sourced from fares found by Omio users in the last 12 months. Current prices may differ as prices vary depending on the time of day, class or how far in advance you book your flight from Cologne to Brussels.