Hawaiian Airlines has expanded its frequent flyer partnership with American Airlines, allowing members of its HawaiianMiles programme to earn miles on all American flights except those between Hawaii and the US mainland.
Members of Hawaiian's programme can also redeem miles for travel on routes throughout Fort Worth-based American's route network, Hawaiian announced on 26 June.
Previously, members of American's AAdvantage programme could earn miles on Hawaiian flights, excluding Hawaii-mainland flights served by both carriers, but HawaiianMiles members could not earn miles on American, according to Hawaiian.
The announcement comes on the heels of other cooperative agreements between Hawaiian and other carriers.
In April, Hawaiian's vice-president of planning and revenue management Andrew Watterson told Flightglobal that the airline will begin codesharing with Taiwan's China Airlines on that carrier's flights via Taipei.
He did not say when the agreement would start, but did say it would cover China Airlines' flights from Taipei to Manila in the Philippines.
Hawaiian will end its Honolulu-Manila service due to poor performance on 1 August, Hawaiian has said.
In 2012, Hawaiian also added partnerships with Air China, All Nippon Airways (ANA), JetBlue Airways and Virgin America.