Yes, there is alternate option to complete this trip. Instead of taking helicopter from Kathmandu , you can take a flight via plane to Lukla and then start the helicopter tour from there. This way you will save some money . From there the helicopter will take you to Kalapatthar, stops there for 15 minutes and fly you to Everest VIew Hotel for breakfast. After spending some time at the hotel , the helicopter will fly you back to Lukla and drops you there. Here you have the options to stay one night and explore the area or you can take a flight back to Kathmandu via plane.