| 1 | LTO | LTU Billa Lufttransport Unternehmen GmbH | IATA: L3, Callsign: Billatransport, | A | AVCODES |
| 2 | LTO | LTU Austria | IATA: L3 | | ICAO1 |
| 3 | LTOA | LA TORTILLERIA | | | SCAC4 |
| 4 | LTOB | LAURA TOURS BUS SERVICES | | | SCAC3 |
| 5 | LTOC | LAM TRANSPORTATION CORPORATION | | | SCAC3 |
| 6 | LTOC | L & T OIL CO INC | | | SCAC4 |
| 7 | LTOE | LOTTO EXPRESS INC | | | SCAC3 |
| 8 | LTOF | LITTON FURNITURE INC | | | SCAC3 |
| 9 | LTOF | LITTON FURNITURE INCORPORATED | | | SCAC4 |
| 10 | LTOG | Lokaltog A/S | Lokaltog was formed on 1 July 2015 as a merger of Lokalbanen A/S and Regionstog A/S. | DK | TRAFFIC |
| 11 | LTOK | LITOS TRUCKING SERVICE INC | | | SCAC4 |
| 12 | LTOL | LEDGER TRANSPORT LTD | | | SCAC3 |
| 13 | LTOM | LANE TOURS INC | | | SCAC3 |
| 14 | LTOM | LANGE, TOM COMPANY INC | | | SCAC4 |
| 15 | LTON | LINTON & SON TRUCKING | | | SCAC3 |
| 16 | LTOP | LANDTROP EXPRESS INC | | | SCAC4 |
| 17 | LTOR | LIBRA TRANSPORTATION CO INC | | | SCAC4 |
| 18 | LTOS | L A B TOURS & CHARTERS | | | SCAC4 |
| 19 | LTOT | LANASA, TONY TOURS | | | SCAC3 |
| 20 | LTOV | LOU-TIN OILFIELD SERVICE | | | SCAC4 |
