China Airline's frequent flyer program is called Dynasty Flyer. Partner airlines are Mandarin Airlines and China Southern Airlines.
Apply on the airlines website
The vast majority of the major airlines around the world have frequent flier programs.
I am from England but live in the USA. I travel frequently. Enroll in one or more airlines frequent flier program and book on their wenbsite and you will start accruing frequent flyer miles
American Airlines Advantage, Delta Sky Miles, and US Airways Dividend Miles are rated as very good programs by Business Travellogue. The tell you what the rewards are and how to get them at http://www.businesstravellogue.com/best-frequent-flyer-programs.
The easiest way is to apply on-line at the airlines website.
There are roughly 20 different airlines that are partners in the WorlPerks Frequent Flyer Program. Some of the included airlines are: Aloha, Horizon Air, Kenya, and Trans States. There are a number of hotels and rental car companies that also participate.
All frequent flyer numbers for Emirates Airlines consists of 7 numbers and begin with the number 6. An example is; 6834214.
All of the major airlines allow you to give your frequent flyer miles to friends and family or transfer the miles to another account holder with the same airline
Frequent travelers typically are members of one or two frequent flyer clubs. They try to minimize the number of airlines that they use so as to easily and quickly accrue large amounts of frequent flier miles on the one or two airlines. By default, then the frequent flier miles quickly accumulate in one frequent flyer program therefore enabling the frequent flyer to have free flights sooner.Airports typically have one or two airlines that are the largest or that have the most flights that arrive or depart from that airport.A frequent flier that travels for business will typically use those airlines because they provide the most options to fit the schedule they need to either fly out or fly home (for example in Dallas, American Airlines would be the choice at the DFW International Airport, while in Atlanta it would be Delta). Since the business frequent flier will be able to get reimbursed for the cost of their flight from their employer, the price of the flight, while important, will many times be a secondary concern. Most companies will have a travel policy that will provide guidelines on the costs that an employee (business frequent flier) can pay for a flight.Additionally, the frequent flier that travels for leisure will try to pay for their flight using their frequent flier miles that they have earned/accrued. If they do not have enough to exchange (a domestic flight is will typically cost 25,000 miles from the freq flier account) then a leisure frequent flier will probably try to balance a low price flight with the schedule that they are trying to achieve.
Yes - they are both part of Star Alliance and have reciprocal arrangements
No, most airlines will not let you convert your frequent flyer miles into cash. This is because the airlines would like for you to fly with them again, and if they instead give you cash then you are able to spend it wherever you would like.