Through December 31, Northwest is offering new members enrolling in Worldperks up to 7000 miles:
- Earn 1,000 Bonus Miles: complete your first flight (one-way or roundtrip)
- Earn 5,000 Bonus Miles: complete a second flight (roundtrip only)
- Earn 1,000 Bonus Miles: subscribe to NWA E-mail for two consecutive months.
Flights must be completed within six months of enrolling to earn the bonuses, and the offer is available to accounts with North American addresses only.
(Hat tip to Flyertalk’s slippahs.)