The airline mileage accrual loyalty system manages the relationship between an airlines and a hotel. The airlines give credit to hotel about frequent flier miles when a hotel refers existing customers to airlines. the airlines captures the data when a flight is booked by hotel or by a passenger giving reference of the hotel. The hotel get the credit for the same in the form of a file format of which differs from airlines to airlines. When hotel receives these credits, it needs to check the credit with the existing records and reconcile the same with the airlines for which it will export the data in the format which is required by the airlines. This also may be different from airlines to airlines. the actual financial exchange takes place out of the system. System only tracks the data of flyer miles accrued to the hotel. System is developed using .net and grid computing with SQL server as back end.