The upgrade is planned to take place from October 23 to 24.
The airline said over the past several months it has been putting the necessary plans in place, and it’s all systems go for the upgrade.
The carrier is advising its customers and the public in general that its reservations system will be unavailable from 6 pm on October 23 until approximately 9 am on October 24.
As a result, customers wishing to make a new booking or to make a change to an existing booking will need to do so outside of those hours.
LIAT explained that the planned systems upgrade will enable the company to improve its interline capability, which could facilitate seamless connections with other carriers.
The new CRS also has the capability for new features such as web check-in, which the airline said will be added over time, and will vastly improve the customer experience.
Although no major hiccups are expected during the migration to the new CRS, LIAT has cautioned that even the best planned cut-over could result in unforeseen challenges.
The company is therefore urging customers who are scheduled to travel on flights departing from 6:00 pm on October 23, through to 12:00 noon on October 24, to adhere to its required check-in of at least two hours before departure.
Customers are also required to present a copy of their latest itinerary at the check-in counter to accelerate the process.
LIAT has disclosed that network contingency procedures will be in place, and additional customer service personnel will be available to ensure the needs of customers are met.
The regional airline said, customers needing assistance may also call the its Call Centre from Antigua on 1-268-480-5582; toll free from the rest of the Caribbean on 1-888-844-5428; from Puerto Rico and the US Virgin Islands on 1-866-549-5428; and from the United Kingdom on 0-808-234-2329.