With fuel prices high, smaller cities could see cuts in airline service that has been subsidized by the federal government since the industry was deregulated three decades ago. So far this year airlines have asked to opt out of subsidy contracts to 20 places – nearly matching the total of 24 from all of last year.

Here are the communities:

? Altoona, Pa.; Colgan Air.

? Clarksburg, W.Va.; Colgan Air.

? Columbia, Mo.; Air Midwest.

? El Dorado, Ark.; Air Midwest.

? Grand Island, Neb.; Air Midwest.

? Harrison, Ark.; Air Midwest.

? Hot Springs, Ark.; Air Midwest.

? Johnstown, Pa.; Colgan Air.

? Jonesboro, Ark.; Air Midwest.

? Joplin, Mo.; Air Midwest.

? Kingman, Ariz.; Air Midwest.

? Kirksville, Mo.; Air Midwest.

? Manhattan, Kan.; Air Midwest.

? McCook, Neb.; Air Midwest.

? Meridian, Miss.; Atlantic Southeast Airlines.

? Morgantown, W.Va.; Colgan Air.

? Parkersburg, W.Va.; Colgan Air.

? Prescott, Ariz.; Air Midwest.

? Presque Isle, Maine; Colgan Air.

? Salina, Kan.; Air Midwest.

Air Midwest has since shut down, canceling all service to these cities by June 30.

Source: Department of Transportation