For the seasoned mileage runner or leisure traveler, United has had some killer deals out of San Diego this year and today's Atlanta - San Diego r/t for $169+ takes the cake. Heck, even business travelers may wish to make speculative bookings based on this cheap price (noting that with United's increased changes fees, there would be no value for a cancelled ticket).
Route via Washington and San Francisco for maximum miles and you are looking at 6,798 base miles for $180. If you are a ...