The route furthermore links to the eastern terminus of Interstate 670 near Gahanna and provides indirect access to John Glenn Columbus International Airport.

I-270 provides access to several suburbs and towns surrounding Columbus, including Grove City, Westerville, Worthington, Hilliard, and Dublin.

It then makes its way clockwise around the city with three lanes, intersecting U.S. Route 62 (US 62), Georgesville Road, and US 40 before its next major interchange, with I-70.

After intersecting I-670, the freeway makes a hard turn left and then right to avoid both John Glenn Columbus International Airport and Gahanna.

This interchange is planned to be entirely reconstructed to construct two flyover ramps, as well as unweave and widen I-70, as part of the Far East Freeway Study.

Through vigorous lobbying throughout 1961, and with the help of Ohio Governor Michael DiSalle, residents were able to get the outerbelt relocated to pass north of Worthington.

[4] Another contentious issue involved the routing of the eastern portion of the outerbelt between Port Columbus International Airport and the city of Gahanna.

[14] In February 1974, three trucks traveling on I-270 on the south side near US 33 were struck by gunfire during a violent Teamsters Strike.

The first trial with death penalty charges resulted in a hung jury on May 9, 2005, most likely due to McCoy's severe mental illness.

On January 23, 2017, a gas tanker carrying 8,000 US gallons (6,700 imp gal; 30,000 L) of gasoline tipped over while exiting from US 33/SR 161 onto I-270 west in Dublin.

Noise barriers have been slowly added around the length of the 55-mile-long (89 km) belt as development has crowded up to the noisy road.

As in other sizeable cities across America, the effect of this outerbelt driven development was to hasten the decline of the Columbus core.

The south portion of I-270 was much slower to develop due to the location of sewage treatment and landfill facilities, as well as quarries and the flood prone Scioto River.

The code's text cites the dense population of the Columbus area, and local law firms note that police frequently pull over trucks with HazMat placards to check the trucker's papers.