Share this postSpirit Airlines has round-trip Detroit-to-Philadelphia flights at $55 for travel August through November!www.greatlakestraveldeals.comCopy linkFacebookEmailNoteOtherSpirit Airlines has round-trip Detroit-to-Philadelphia flights at $55 for travel August through November!Great Lakes Travel DealsJul 31, 2023∙ PaidShare this postSpirit Airlines has round-trip Detroit-to-Philadelphia flights at $55 for travel August through November!www.greatlakestraveldeals.comCopy linkFacebookEmailNoteOtherShareThis post is for paid subscribersSubscribeAlready a paid subscriber? Sign in