The cheapest round-trip from Frankfurt to Cologne is about 327 EUR, usually in June 2026; April 2027 is priciest, so booking the low month saves around 3005 EUR (~90%). Typical fare ~2207 EUR, from 239 priced fares. Flightmussy live data, updated 2026-06-13.
Cheap flights from Frankfurt (FRA/HHN) 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: 327 EUR, usually around June 2026. Typical fare ~2207 EUR. Across the year prices range roughly 327–3332 EUR — about 90% cheaper in the low season than the peak (April 2027). Carriers on this route include Eurowings, Air Cairo, Lufthansa, Austrian.
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. June 2026 is cheapest; April 2027 is priciest.
| Jun 2026 | 327 EUR | |
|---|---|---|
| Jul 2026 | 387 EUR | |
| Aug 2026 | 3330 EUR | |
| Sep 2026 | 3330 EUR | |
| Oct 2026 | 880 EUR | |
| Nov 2026 | 2207 EUR | |
| Feb 2027 | 2208 EUR | |
| Mar 2027 | 1759 EUR | |
| Apr 2027 | 3332 EUR | |
| May 2027 | 3332 EUR |
Flightmussy is a free flight meta-search built by one person in Oslo. No signup, no ads, no tracking — email is optional, only for route price alerts. Compare fares across airlines and see 12 months of prices at a glance — including low-cost carriers Google Flights often deprioritises (Widerøe, Wizz Air, Norwegian, Ryanair). Pay with a card at the airline, or use the Crypto button on any result to check out in BTC, ETH, USDT, BNB or AVA via Travala.
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