It is our pleasure to inform you that Air France-KLM as ‘official carriers’ offer participants of ICAS 11 a discounted price (the discount varies per departing country and dates of travel). To search for tickets please click here. Terms and condition can be found on the booking website. Please note that depending on your departure country, other airline companies may offer lower fares.


Leiden is conveniently located in the western part of the Netherlands. It is easy to reach Leiden from nearby cities such as Amsterdam, The Hague and Delft (the train stations are in 15-40 minutes reach of Leiden Central) and it is close to coastal villages as Katwijk and Noordwijk (only 20-30 minutes by bus).You can check on google maps how long the journey will take to Leiden by public transport (when you have decided on the route, click on the train symbol) or via the public transport planner. Oegstgeest (10-15 minutes by bus to Leiden Central) also offers a number of hotels e.g. Castle-hotel Oud Poelgeest or Bastion Hotel Leiden.

Leiden has a number of accommodation options ranging from B&Bs to hotels in different price categories. ICAS 11 will take place in the summer, which is tourist high season. It is therefore recommended to book your accommodation in time.

Our official hotel partner organisation is Preferred Hotel Reservations, which has secured rooms for ICAS 11 participants in hotels located in or near Leiden. Please check the hotel website for an overview of the selected conference hotels.
If rooms are no longer available in your preferred hotel, please check the hotel's website if they may still have rooms available or a hotel booking website as booking.com.

Other accommodation options in Leiden and nearby towns and cities include for example hostels, bed & breakfasts, holiday apartments or AirBNB

Hello Holland offers day tours, evening-sightseeing tours, and weekend tours before, during, and after the ICAS event. They also have secured a number of hotel rooms in/near Leiden.

Please note: All participants are requested to make their own accommodation bookings.

Travel Insurance

It is strongly recommended to obtain comprehensive travel insurance which will cover all international medical costs, including medical repatriation/evacuation, repatriation of remains and legal costs.