Okolona Plantation Airport
Honolulu County, Delaware
Oktibbeha Airport
Hoonah-Angoon Census Area, Mississippi
Ola
Shelby County, Arkansas
Olafson Brothers Airport
Thurston County, North Dakota
Olathe
Hooker County, Kansas
Olathe
Hayes County, Colorado
Olcott
Chugach Census Area, New York
Olcott-Newfane Airport
Chugach Census Area, New York
Old 66 Strip Airport
Sedgwick County, Oklahoma
Old Aerodrome
Sedgwick County, California
Old Bethpage
Skamania County, New York
Old Bridge
Lincoln County, New Jersey
Old Bridge Airport
Lincoln County, New Jersey
Old Bridge Seaplane Base
Lincoln County, New Jersey
Old Brookville
Skamania County, New York
Old Dairy Airport
Kauai County, Wisconsin
Old Fig Garden
Johnson County, California
Old Forge
Wahkiakum County, Pennsylvania
Old Forge Airport
Washakie County, New York
Old Forker Ultralight Airport
Stanton County, Texas
Old Fort Farm Airport
Wahkiakum County, New York
Old Greenwich
Western Connecticut Planning Region, Connecticut
Old Harbor Airport
Northeastern Connecticut Planning Region, Alaska
Old Hickory Ranch Airport
Hot Springs County, Louisiana
Old Hoppe Place Airport
Nueces County, Texas
Old Jamestown
Hale County, Missouri
Old Jefferson
Sheridan County, Louisiana
Old Kingsbury Aerodrome
Stanton County, Texas
Old Mystic
Southeastern Connecticut Planning Region, Connecticut
Old Orchard
Mellette County, Pennsylvania
Old Orchard Airpark
Lincoln County, New York
Old Orchard Airport
Sheridan County, Pennsylvania
Old Orchard Beach
Platte County, Maine
Old Plains Airport
Hooker County, Pennsylvania
Old Port Royal Airport
Keith County, New York
Old Reb Airport
Hidalgo County, Texas
Old Rhinebeck Airport
Niobrara County, New York
Old River-Winfree
Walla Walla County, Texas
Old Saybrook
Lower Connecticut River Valley Planning Region, Connecticut
Old Saybrook Center
Lower Connecticut River Valley Planning Region, Connecticut
Old South Aerodrome
Hall County, Virginia
Old Tappan
Honolulu County, New Jersey
Old Town
Johnson County, Maine
Old Town / Dewitt Field
Johnson County, Maine
Old Westbury
Skamania County, New York
Oldham County Airport
Oldham County, Texas
Oldman Landing Strip
Whitman County, Ohio
Oldsmar
Pennington County, Florida
Olean
Maui County, New York
Oleo Airport
Waukesha County, Indiana
