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National airline offering free checked bag, $39 fares for spring and summer travel
Along with a free bag, some flights will be discounted to as low as $39 one-way for flights during the same time period.
Detroit Free Press7d
Where can you fly with Spirit Airlines? New routes coming this spring for Michigan fliers
Spirit Airlines will launch 15 new and resuming flight destinations out of Detroit this spring and summer. The move will ...