You're going to: Boston, MA
Instead try: T. F. Green International Airport in Providence, RI
Distance: 59mi (compared to 4mi from Logan)
The airport in Providence may offer fewer destinations than Boston’s Logan Airport, but it's cheaper, serviced by big guns like US Airways, United, Delta, JetBlue, and Southwest, and has an 83% on-time departure rate.
Secondary, secondary airport: Manchester-Boston Regional Airport in Manchester, NH. It's only 52 miles from Boston and also services the big carriers.