United limits frequent-flier miles

I guess I'll have to fly United one more time -- to deplete my frequent flyer miles... 

UAL Corp.'s United Airlines, the world's second-largest carrier, said Friday that it will cancel frequent-flier miles for customers who go 18 months without using the program.

Travelers can keep their accounts active and retain their miles by flying the airline, using a United-branded credit card or using or donating miles, the Elk Grove Township, Ill.-based airline said.

Source: United limits frequent-flier miles