Changes

When you get out of the airport, turn left and walk for 5 minutes or so pass Illy Café Route de l'Aéroport street until you get to a roundabout. At this roundabout turn left and you will see a dirt area to the right side of the road D1001 (150 metres before Rue de Tillé). Here it should be dead easy to get lifts, and will save you the ridiculous 15 euro ticket into the city. It's probably best to turn down lifts going into the town of Beauvais, because then it can be difficult to get back to the highway. Just be patient and eventually you will get a car going directly to Paris.