Airfares are cheaper than they’ve been in decades. How long can prices stay so low?

For less than $100, travelers from the Chicago area can buy a roundtrip ticket to New York, Las Vegas, Orlando, Phoenix, Miami, Los Angeles and several other major cities. Around $200 will get you to such places as Puerto Rico, Cancun and the U.S. Virgin Islands. (aviationrepublic.com) 更多...