Car service from Malpensa to Arona

There is a bus 6 times a day between Malpensa and Arona, Cost is 7 EUR. and takes 35 minutes from Terminal 1.
https://www.safduemila.com/linee/alibus-malpensa-lago-maggiore/

You can also look at car services on the the Malpensa airport site.
https://www.milanomalpensa-airport.com/en/from-to/car-hire-with-driver

The Lago Maggiore bus service runs until October 13 this year and starts up again early April. Must be reserved in advance and paid for with credit card.

What time of year?