India, Feb. 14 -- Air India has announced expansion plans for the peak summer schedule starting March 30 to boost connectivity on several key international routes, the airline said in a statement on Thursday.

As part of its plans, the airline is ramping up services to the United Kingdom, including Delhi-Heathrow where the airline will add three weekly flights, bringing the total to 24 weekly flights from the current 21. The expanded services will have a combination of Air India's Airbus A350-900 and the upgraded Boeing 787-9 aircraft, it stated.

Its frequency on the Amritsar-Birmingham route will also increase from three to four weekly flights and on the Amritsar-London Gatwick route, from three to four weekly flights. Similarly, flight...