Air Transportation Service Companies
| Sbs Farm Svc Inc (Hanford, CA)
Primarily Serving: Tulare, CA - Visalia, CA - Fresno, CA - Clovis, CA |
| Scenic Airlines (Boulder City, NV)
Primarily Serving: Henderson, NV - Las Vegas, NV - North Las Vegas, NV - Lake Havasu City, AZ |
| Schenker International Inc (Erlanger, KY)
Primarily Serving: Cincinnati, OH - Hamilton, OH - Middletown, OH - Dayton, OH |
| Schertz Aerial Svc Inc (Hudson, IL)
Primarily Serving: Normal, IL - Bloomington, IL - Peoria, IL - Champaign, IL |
| Schilpp Industriag Ag Svc (Harmon, IL)
Primarily Serving: Rockford, IL - Davenport, IA - Aurora, IL - Elgin, IL |
| Schneider Studio (Wheeling, WV)
Primarily Serving: Pittsburgh, PA - Canton, OH - Youngstown, OH - Akron, OH |
| Schrimmer Advertising (Costa Mesa, CA)
Primarily Serving: Newport Beach, CA - Fountain Valley, CA - Huntington Beach, CA - Santa Ana, CA |
| Schroeder Air Spray (Ayr, ND)
Primarily Serving: Fargo, ND - Grand Forks, ND - Bismarck, ND - Saint Cloud, MN |
| Schumacher Cargo Lines (San Leandro, CA)
Primarily Serving: Hayward, CA - Castro Valley, CA - Alameda, CA - Oakland, CA |
| Schwanz Aerial Spraying (Crosby, ND)
Primarily Serving: Bismarck, ND |
| Scott's Air Ag (Milbank, SD)
Primarily Serving: Sioux Falls, SD - Fargo, ND - Saint Cloud, MN - Minnetonka, MN |
| Scotty's Flying Svc (Patten, ME)
Primarily Serving: Portland, ME |
| Seacoast Airlines (Clearwater, FL)
Primarily Serving: Largo, FL - Palm Harbor, FL - Saint Petersburg, FL - Tampa, FL |
| Seawind Aviation (Ketchikan, AK) |
| Seibu Transporting Inc (Valley Stream, NY)
Primarily Serving: Hempstead, NY - Levittown, NY - Brooklyn, NY - Bronx, NY |
| Seko Worldwide (Erlanger, KY)
Primarily Serving: Cincinnati, OH - Hamilton, OH - Middletown, OH - Dayton, OH |
| Seko Worldwide (Portland, OR)
Primarily Serving: Beaverton, OR - Clackamas, OR - Vancouver, WA - Gresham, OR |
| Seko Worldwide (Gardendale, AL)
Primarily Serving: Birmingham, AL - Tuscaloosa, AL - Decatur, AL - Tanner, AL |
| Seko Worldwide (Cranston, RI)
Primarily Serving: Providence, RI - Warwick, RI - Pawtucket, RI - Fall River, MA |
| Senath Aviation (Senath, MO)
Primarily Serving: Jonesboro, AR - Memphis, TN - Jackson, TN - Conway, AR |
| Serra International Inc (Springfield Gard, NY) |
| Servicargo (Pleasantville, NJ)
Primarily Serving: Vineland, NJ - Toms River, NJ - Camden, NJ - Philadelphia, PA |
| Service By Air (Revere, MA)
Primarily Serving: Malden, MA - Lynn, MA - Boston, MA - Somerville, MA |
| Service By Air (Juneau, AK) |
| Sherman Oaks Mail Svc (Sherman Oaks, CA)
Primarily Serving: Burbank, CA - Santa Monica, CA - Glendale, CA - Los Angeles, CA |
