Budget carrier IndiGo today announced a four-day summer sale, putting 10 lakh seats up for grabs as part of its summer sale. Flight tickets start from 999 on IndiGo’s domestic route in the latest sale. Under the discount offer, IndiGo is also offering tickets from 3,499 on overseas routes, the airline mentioned on its website. The booking period for IndiGo's summer sale offer that started on 11 June will end on 14 June, and is applicable for travel between 26 June and 28 September on domestic and international routes, the airline said in a statement.

IndiGo said discounts on seats are subjected to availability and “the offer is valid for bookings made during the offer period, at least 15 days prior to the date of departure, provided that the date of travel is no later than September 28, 2019."

Under this offer, IndiGo is offering Delhi-Ahmedabad flight tickets starting from 1,799, Delhi-Bengaluru 3,299, Delhi-Chandigarh 1,299, Delhi-Jaipur 1,499 , Jaipur-Delhi 1,799, Goa-Hyderabad 1,499, Hyderabad-Bengaluru 1,899 and Delhi-Dehradun 1,999.

Internationally, the routes include Delhi-Abu Dhabi 6,799, Bengaluru-Bangkok 6,899, Kolkata- Bangkok 5099, Hyderabad-Dubai 8,999, Delhi-Dubai 7,799 and Delhi-Kuala Lumpur 6,599.

IndiGo said that there is a limited inventory under the offer and therefore discounts are subject to availability of seats.

IndiGo also that the latest 899 and 3,499 offer is applicable for flight bookings made through all channels during the offer period.

“This offer cannot be clubbed with any other offer, scheme, or promotion, and is non-transferable, non-exchangeable and non-encashable. The offer is not valid on IndiGo’s group bookings," it added.

With almost 50% share in domestic passenger market, IndiGo is the largest airline in India. It operates around 1,400 daily flights and connects 53 domestic destinations and 17 international destinations.

IndiGo also announced daily non-stop flights on the Kolkata-Hong Kong route from 20 August, providing both business and leisure travellers more options to choose from.