What if the airfare is cheaper than dinner or what you’ll spend on Ubers or taxis?

Say, Boston-Orlando in mid-June for $41 (that’s round trip, including taxes), according to data from airfare research firm 3Victors, or Philadelphia-Las Vegas between now and early November for $73 round trip? Maybe you’re tempted by $177 from New York to Los Angeles and back in early June, or $345 round trip Los Angeles-London in August, September or October.

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