The nearest airports are the airport of Kloten (Zurich) and the EuroAirport of Basel. From the airports you can take the train to Solothurn.
If you buy a ticket at the SBB-desk, please show your confirmation of participation and you will receive a SBB seminar ticket, with which you can get a discount of 20 percent on the ticket price. This ticket is valid for 5 days.
For further information and ticket reservation please enter the sites of the SBB.