Originally posted by MRLIMO:
... Checked Luggage
Point-to-point requires checked luggage to be claimed and rechecked at each point. Thru routings may be checked to your final destination. ...
Actually, you can check luggage through on different tickets if it's on the same carrier. One time I bought an open jaw EWR-DFW;IAH-EWR, and then later I bought a round trip IAH-DFW-IAH (Continental), where the return flight arrives in IAH in time to catch the IAH-EWR flight (not being needed in Houston, it was cheaper to buy the roundtrip than change the first ticket). CO happily checked my bags from DFW to EWR via IAH.