She says many operators will prohibit travellers from boarding small aircraft if they're not dressed appropriately. Sometimes the airline will have warm clothes on hand that travellers can borrow. Mr. Roberts says it's especially important to pay attention to footwear. And be prepared for weather-related delays. Northern weather can change dramatically within five minutes.
Travellers are wise to check an airline's Web site or to phone ahead.
Many northern airlines have Web sites where schedules and weather information are regularly updated, and there are suggestions about what clothes to pack.