Hawaii-bound travellers will soon have four classes of service to choose from on Hawaiian Airlines, which is adding its own version of “basic economy” in 2019.

KHON-TV reports that airline officials announced the plan to add Main Cabin Basic to its current of Premium Cabin, Extra Comfort, and Main Cabin service in a call with investors.

Main Cabin Basic passengers will board aircraft last and won’t be able to make changes to tickets or fly standby, get seat assignments before checking in for flights, or earn bonus miles on the airline’s frequent-flyer programme.

The airline also announced that it will add a pair of new flights in 2019 — Boston-Honolulu and Sacramento-Maui — and will make improvements at its Honolulu hub, adding new ticket counters, security checkpoints, gates, and an improved baggage system at Daniel K. Inouye International Airport. The project is slated for completion in 2021.

“This is an airline that continues to grow, and they’ll run into growth pains if airport growth doesn’t keep up with the airlines,” said aviation expert Peter Forman, who noted that some Asia-bound travellers connect to their international flights in Honolulu.