Round-trip

Service Description Mileage/Cost per mile 7-Day Unlimited MetroCard 168 hours riding the A train 2,520 miles/1.1 cent Megabus Round-trip fare to Washington, D.C. 550 miles/5.2 cents N.J.

Stretching $29 to Its Limits Anne Kadet 2011

Round-trip fares on that route typically cost $1,500 to $2,000.

The World's Longest Flight, in Coach Scott McCartney 2012

Round-trip airfare from Reagan National in early October was recently $442 on Delta with one convenient connection, while fares for one-connection flights into Fairbanks cost $1,057.

Denali and Fairbanks, Alaska, for $2,500 to $3,000 2010

Round-trip fare for travel Nov. 1-Dec. 10 or Jan. 7-March 14 is $989, including $90 taxes; fare on other airlines starts at $1,287.

Best travel deals: hotels, airfares, cruises, packages 2010

'Round-trip' your carbon: In this variation of the classic tax scam, a new company is set up specifically to create carbon offsets.

Combating Complexities Of Carbon Fraud 2010

Round-trip airfare to Springfield, Mo.: $450 (driving may cost less)

The Ozark Escape Tim Romano 2007

Round-trip Y-Up fares generally run $500 to $1,200 -- several hundred dollars more than a typical coach ticket, but significantly less than a first-class fare.

It's Never Been Easier to Leave Coach Behind 2009

Round-trip fares for Los Angeles or San Francisco start at $218; Dallas/Fort Worth starts at $198; Chicago, $168; and Miami, $138.

Travel Deals for Hawaii, New York 2009

Round-trip airfare to nassau: $360; plus approximately $150 to Long Island

The Bonefish Bargain Tim Romano 2007

Round-trip airfare to San Antonio: $280 accommodations: Camping at $8 per night

Bass on the Border Tim Romano 2007