The cheapest month to fly from Cologne to Basel is November, with fares from €23. The most expensive period is August, when prices can reach €46+ — a difference of €23 per ticket. Booking on a Saturday and travelling off-peak can save you significantly on the 365 km CGN–BSL sector.
Estimated seasonal guide, not live fare data: we do not yet have enough observed fares on this route to show real monthly prices. Use the live fares above for actual pricing.
| Month | From price | vs cheapest | Verdict |
|---|---|---|---|
| January | €24 | +€1 | Best value |
| February | €26 | +€3 | Best value |
| March | €29 | +€6 | Best value |
| April | €33 | +€10 | Best value |
| May | €31 | +€8 | Best value |
| June | €37 | +€14 | Average |
| July | €44 | +€21 | Expensive |
| August | €46 | +€23 | Expensive |
| September | €30 | +€7 | Best value |
| October | €27 | +€4 | Best value |
| November | €23 | Cheapest | Best value |
| December | €36 | +€13 | Average |
On the Cologne–Basel route, Saturdays are typically the cheapest day to fly, while Fridays are most expensive. Mid-week departures (Tuesday, Wednesday) save an average of 15–25% compared to weekend travel.
Top-rated tours and experiences in Basel, ranked by traveller rating. Prices are per person and change with date and group size.
Nightly rates in Basel for a sample two-night stay for two adults from 29 Sep 2026, cheapest first. Rates move with your dates — check availability for a live quote.
