Out-of-towners should fly into Pittsburgh International Airport (PIT). PIT is the greatest airport ever: it has a mall in the terminals (and there is no sales tax on clothing in PA), a tram, and is always empty.
For the lucky New Yorkers and Bostonians, JetBlue flies direct to Pittsburgh. For those traveling from LAX, USAirways flies direct to PIT (and United via USAir).
PIT is fairly far outside of Pittsburgh, which is not known for its public transportation. A cab ride from PIT to the North Shore (site of wedding + Springhill Suites Marriott Hotel) will be approximately $35-38. The hotel has also recommended the use of an Express Shuttle from the airport. The cost for this shuttle is $19 one way per person or $34 per person round trip.
We encourage you to comment on this blog to organize carpools or splitting cabs with other out-of-towner guests.