Is it helpful to use a mileage card when collecting airplane mileage?

There is a credit card type of mileage, and there are people who purposely find this kind of mileage card.

Is it helpful to use this mileage card when collecting airplane mileage?

I just thought getting on the plane would stack up faster.

Doesn't it almost stack up like other card points?

434 2018-11-02 Gentleman

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