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How do I Combine Northwest & Delta Miles?

In late 2008, Delta Air Lines, Inc. merged with Northwest Airlines. As is common in airline mergers, the new carrier offered its customers the option to merge their loyalty program accounts. If you didn't take advantage of this service within the required time frame, however, Delta simply converted your Northwest WorldPerks account into a Delta SkyMiles account, regardless of whether or not you already had one. In order to combine your two accounts, you'll need to request that Delta merge them online.

Instructions

- 1
  Point your browser to the link listed in Resources. Click the dark blue "Merge Accounts Now" button.
- 2
  Enter your primary SkyMiles account number and its corresponding PIN. Do the same for your secondary SkyMiles account. Look over your information to confirm that it's correct and click "Validate."
- 3
  Decide which SkyMiles account number you'd like to keep. Chances are you'll want to keep your primary account, since your secondary account was created by default. Click the "Continue" button.
- 4
  Review your information to ensure that it's correct. Click the "Submit Merge Request" button. Check your email over the next few days for confirmation that the merge was successful.

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