Delta Introduces Comfort+ Upgrade Seat Preferences - One Mile at a

Delta has improved Comfort+ upgrades, so that you can now elect to only be upgraded when certain types of seats are available. Here's how it works.
Delta has improved Comfort+ upgrades, so that you can now elect to only be upgraded when certain types of seats are available. Here's how it works.

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Delta Introduces Comfort+ Upgrade Seat Preferences - One Mile at a Time

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