Bonus points? Cash back? JetBlue's latest promotion has both.

To earn 20 bonus TrueBlue points plus a $50 voucher for a future JetBlue ticket, book a round-trip JetBlue flight by September 18 and complete travel by November 15.

The $50 voucher is redeemable for travel on JetBlue between December 1, 2007, and February 13, 2008.

This is a good deal if the JetBlue ticket price is competitive. But do compare other airlines' prices: JetBlue isn't always the price leader they'd like consumers to think they are.