Terms and Conditions:

Eligibility: To participate in this offer, SkyMiles members must register online at nwa.com/offers/pileonmiles between April 22 and June 22, 2009. Registration must be completed before any activities take place to be valid for this promotion. This offer is valid only for SkyMiles members residing in North America and the Caribbean. SkyMiles members residing in Asia do not qualify for this promotion.

Offer:Earn up to 25,000 Bonus Miles. Earn Bonus Miles in the following increments for each level of unique partner activities between April 22 and June 22, 2009, up to a maximum of 25,000 Bonus Miles. 4 unique partner activities = 4,000 Bonus Miles; 6 unique partner activities = 6,000 Bonus Miles; 8 unique partner activities = 8,000 Bonus Miles; 15 unique partner activities = 15,000 Bonus Miles; 25 unique partner activities = 25,000 Bonus Miles. Only one activity per partner will qualify, including one Buy Miles transaction, one Gift Miles transaction and one Transfer Miles transaction. These Bonus Miles are awarded in addition to the SkyMiles miles earned from standard mileage earning activities. Partner offers subject to the terms and conditions of each individual offer.

Unique Partner Activity: A unique partner activity is defined as one partner transaction, or a SkyMiles Buy Miles, Gift Miles, or Transfer Miles transaction between April 22 and June 22, 2009. Note that only one mileage-earning hotel partner stay/activity with a partner hotel family will count regardless of the number of different hotel stays within the family. For example, multiple stays at different Hilton Family brands (e.g., Doubletree, Embassy Suites and Hilton Hotels) will count as only one eligible activity; however, normal Miles may still be earned as a result of such multiple activities. One stay/activity at different hotel families (e.g., Hilton, Marriott, InterContinental, etc.) will each count as an eligible activity for the threshold bonus promotion. A SkyMiles Buy or Gift Miles purchase and a partner points to miles conversion transaction are considered unique activities and are eligible. Converting hotel partner points to miles and a stay/activity with the same hotel partner do not count as two activities. Flight activity on Northwest or partner airlines is not eligible for this promotion. Purchases with Bose, Sealy, SkyMall Inc, Tesoro, MyStockFund, or 1-800wine do not qualify for this promotion. Purchases on the SkyMiles Mall^® do not qualify for this promotion.

Promotion Partner List:

Hotel Partners: Hilton HHonors^® (one stay among Hilton^®, Conrad^® Hotels & Resorts, Doubletree^®, Embassy Suites Hotel^®, Hampton Inn^®, Hampton Inn & Suites^®, Hilton Garden Inn^®, Hilton Grand Vacations^TM, Homewood Suites by Hilton^®, the Waldorf Astoria^TM or the Waldorf Astoria Collection^TM); Marriott (one stay among Marriott^® Hotels & Resorts, JW Marriott^® Hotels & Resorts, Renaissance^® Hotels & Resorts, Courtyard by Marriott^®, Fairfield Inn by Marriott^®, Springhill Suites by Marriott^®, Residence Inn by Marriott^®, TownePlace Suites by Marriott^®, Marriott Vacation Club^SM International, or Marriott Executive Apartments^®); InterContinental (one stay among Candlewood Suites^®, Crowne Plaza^® Hotels & Resorts, Holiday Inn^®, Holiday Inn Express^®, Hotel Indigo^®, InterContinental^® Hotels & Resorts or Staybridge Suites^®); Starwood Hotels & Resorts (one stay among Aloft, Element, Four Points by Sheraton, Le Meridien, The Luxury Collection^®, Sheraton^®, St. Regis, W or Westin^® hotels); Hyatt (one stay among Park Hyatt^®, Andaz, Grand Hyatt^®, Hyatt Regency^®, Hyatt Place^® or Hyatt Summerfield Suites^®); Wyndham Hotel Group (one stay among Baymont Inn & Suites^®, Days Inn^®, Hawthorn Suites^®, Howard Johnson^®, Knights Inn^®, Microtel Inn & Suites^®, Ramada^® Worldwide, Super 8^®, Travelodge^®, Wingate^® by Wyndham or Wyndham Hotels and Resorts^®); Best Western International: Choice Hotels (one stay among Ascend Collection, Cambria Suites^®, Clarion^®, Comfort Inn^®, Comfort Suites^®, Econo Lodge^®, MainStay Suites^®, Quality Inn^®, Rodeway Inn^®, Sleep Inn^® or Suburban Extended Stay Hotel^®); Carlson Family of Hotels: (one stay among Country Inns & Suites By Carlson^SM, Park Inn^®, Park Plaza^® Hotels & Resorts, Regents Hotels and Resorts or Radisson^® Hotels & Resorts); Accor (one stay among Sofitel, Novotel, Pullmann, MGallery or Mecure); New Otani Hotels; Pan Pacific Hotels & Resorts (one stay among Pan Pacific Hotels and Resorts or Tokyu Hotels); JAL Hotels (one stay among Nikko Hotels International or Hotel JAL City); WORLDHOTELS; Okura Hotels and Resorts; Shangri-La Hotels (one stay among Shangri-La Hotels and Resorts or Traders Hotels).

Car Rental and Ground Transportation Partners: Alamo^®, Avis, Budget, Checker Sedan, Dollar Rent A Car, Hertz, National Car Rental^®, SuperShuttle, and Thrifty Car Rental.

Dining, Retail & Other Partners: e-Rewards (one e-Rewards currency redemption for miles), e-Miles^®, Energy Plus, FTD, 1-800-Flowers.com, Track It Back, Teleflora's Flower Club, Travelling Connect, Vinesse LLC, Dining For Miles^®, Thanks Again, and Bensinger's Fine Cleaners.

SkyMiles Programs: Buy Miles, Gift Miles or Transfer Miles transactions will be credited one unique partner activity for each, up to a total of three unique partner activities. Only the purchaser of the miles will be credited the unique partner activity.

Communication Partners: SkyMiles Wireless.

Real Estate, Insurance & Financial Partners: LendingTree, 21st Century Auto Insurance, iNest, Sentry Insurance, HomeLoanCenter.com, and LifeLock.

Vacation & Cruise Partners: Cruise Locators^® , Delta Vacations^® .

Threshold Bonus Miles: Bonus Miles under this offer will only be awarded in the stated increments for the activity levels described. For example, 9 unique partner activities would result in only 8,000 Bonus Miles. Please allow 10 to 12 weeks after the promotion end date for all Bonus Miles to post to your SkyMiles account.

Miscellaneous: Offers void where prohibited by law. Other restrictions may apply. Bonus Miles are awarded in addition to the SkyMiles miles earned from normal mileage earning activities. Bonus Miles count as banked miles not Elite Qualifying Miles. Participation in SkyMiles is subject to the terms and conditions of the SkyMiles program. To review the rules of the SkyMiles program, please visit nwa.com/worldperks. All participating partner program terms and conditions apply. Partners have the right to prohibit purchases or enrollment into their program. Northwest Airlines reserves the right to modify any portion of this promotion with or without notification, including participating partners, points to Bonus Miles conversion, and the description of qualifying activities. This offer may not be combined with any other offers or activities. Only those activities denoted within these terms and conditions qualify for miles per the qualifying activity descriptions. Northwest Airlines is not responsible for any malfunctions associated with the web registration process that result in late registration or incomplete information. Northwest Airlines prohibits any automated systems and/or users from accessing our system with the intention of enrolling multiple members into the SkyMiles program and/or registering members for promotional offerings. Prohibited methods include but are not limited to, using robots, automated registration or enrollment generating tools, third-party services that enroll or register on others' behalf, or any other software. Northwest Airlines reserves the right to disqualify enrollments or promotion registrations made using such methods. Northwest Airlines is the final authority on all disputes and the interpretation of these rules. All disputes should be sent in writing to the SkyMiles Service Center, 601 Oak Street, Chisholm, MN 55719-1995. Additional restrictions and considerations may apply.

Reference Code: GNWPAPPSP09