Alliance Air, a subsidiary of Air India, is to launch a four-times-a-week flight between Pant Nagar and Dehradun from January 4. The flight is being launched under the regional connectivity scheme of the government. In a statement, the airline said the flight would operate on Wednesdays, Fridays, Saturdays and Sundays. The airline will use an ATR-42 aircraft which will offer 70 seats. The airline has launched a promotional fare starting at Rs 1,590.