CALGARY — WestJet has signed a deal to serve McDonald’s coffee aboard its flights.

The airline says it will start serving the coffee on a flight from Toronto to Calgary today and expand service across its fleet.

WestJet says it also plans to offer McDonald’s coffee on its regional airline, WestJet Encore.

McDonald’s has been working to improve its coffee in recent years with its McCafe brand.

The deal is similar to other arrangements airlines have struck with coffee companies.

Air Canada serves Second Cup coffee on its flights, while Porter Airlines serves Starbucks coffee in its lounges and on its aircraft.