Cheap flights from Cologne to Basel, Switzerland/Mulhouse

Cheapest current fares: $75 in June 2026 on connecting flights.

Last updated · By

Live fares · CGN → BSL

Cheapest month-by-month fares

Lowest available fare per calendar month from Cologne (CGN) to Basel, Switzerland/Mulhouse (BSL). Refreshed daily.

Cologne (CGN) → Basel, Switzerland/Mulhouse (BSL)

  1. June 2026 $75
  2. May 2026 $173

Frequently asked questions

  • What is the cheapest month to fly from Cologne to Basel, Switzerland/Mulhouse?

    Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Cologne (CGN) to Basel, Switzerland/Mulhouse (BSL), with fares starting from $75.

  • What is the lowest current fare from CGN to BSL?

    The lowest currently-listed fare from Cologne (CGN) to Basel, Switzerland/Mulhouse (BSL) is $75 on 2026-06-18.

  • Is there a direct flight from Cologne to Basel, Switzerland/Mulhouse?

    There is currently no non-stop service from CGN to BSL. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: CGN → BSL Cheapest month to fly to Basel, Switzerland/Mulhouse All flights from Cologne All flights to Basel, Switzerland/Mulhouse Flights to France Visa-free with Germany passport