Accommodations in Jasper are generally cheaper than Banff, but that's not really saying much. The town's limited hotel and hostel rooms iill up quickly in summer, as do the cabins, bungalows and campgrounds in the surrounding countryside.
Jasper's 11 park campgrounds (four of which accept reservations) are open from mid-May to September or October, with one (Wapiti) staying open year-round. For information, visit the Parks Canada Jasper Information Centre.
The Alpine Club of Canada (ACC) operates a nationwide network of backcountry huts for hikers, climbers and mountaineers, including several in Jasper National Park. Make reservations through the Alpine Club of Canada's reservation line or in person at the Clubhouse in Canmore (28km east of Banff). All hut users are required to have a Parks Canada wilderness pass; ACC members get a substantial discount on hut overnight fees.