I got a CO mileage award, flights on US. Took leg 1, DCA-PHL, no problem. Leg 2 was cxl, PHL-IPT. US says: "This flight has been cancelled. The aircraft is unavailable because of a prior cancellation due to weather conditions." but of the continuation, it says: "Due to weather conditions moving through the Philadelphia area this flight has been cancelled." Both of these statements are actually untrue, as we got on the first flight and had taxiied out to the deice pad but were called back, because, apparently, strange though this sounds, IPT didn't have the appropriate deicing equipment, and though we could have got there ok, US (or Piedmont) was not confident that the plane would get back. Our pilot, quite frustrated by the events, explicitly told us "If they tell you they canceled because of weather, they are lying." At the gate they told us that the subsequent flight had been cancelled, and there were no flights out with space available until Monday (today, 2 days later). So I hooked up with a guy renting a car, and we arrived at IPT a jolly 10 hours late, at some expense to ourselves. 1. Am I due any reimbursement or compensation from either US or CO? 2. Do I have to check with US or CO or both to make sure that the rest of my itinerary isn't cancelled? I am obvious not taking whatever they have given me.