| 1 | JF | L.A.B. Flying Service, Inc. | ICAO: LAB, Callsign: LAB, IATA Prefix: 510, Founded in 1956. Ceased operations in 2008. Designator JF reinstated by IATA | USA | AVCODES |
| 2 | JF | Jet Fret SA | ICAO: JFT, Callsign: Jet Fret, | F | AVCODES |
| 3 | JF | Air Logistics Ltd. | | GB | AVCODES |
| 4 | JF | Johnsons Flying Service, Inc. | Callsign: Johnson Service, | USA | AVCODES |
| 5 | JF | Creat Aviation | ICAO: TJF, Callsign: Trehaven, | GB | AVCODES |
| 6 | JF | Jet Asia Airways Company Limited dba Jet Asia | ICAO: JAA, Callsign: Jet Asia, IATA Prefix: 884, Ceased operations during September 2020. | T | AVCODES |
| 7 | JF | OTT Airlines Co., Ltd. | ICAO: OTT, Callsign: OTT Airlines, Subsidiary of China Eastern Airlines. Planned to operate Comac C919 and ARJ21. | PRC | AVCODES |
| 8 | JF | | | DK | TRAFFIC |
| 9 | JFA | Aviones Ejecutivos J.F.A. | Callsign: Avejecutivos, | MEX | AVCODES |
| 10 | JFA | Jetfly Aviation S.A. | Callsign: Mosquito, | L | AVCODES |
| 11 | JFAC | JORDAN FIRST (1ST) AUTO TRANSPORT L | | | SCAC4 |
| 12 | JFBD | JACKSON LOGISTICS INC | | | SCAC4 |
| 13 | JFBS | JAKES FREIGHT BROKERAGE SERVICE LLC | | | SCAC4 |
| 14 | JFC | LTV Jet Fleet Corp. | Callsign: Jet-Fleet, | USA | AVCODES |
| 15 | JFC | LTV Jet Fleet Corporation | | | ICAO1 |
| 16 | JFCC | JEFFCO CARTAGE COMPANY INC | | | SCAC4 |
| 17 | JFCL | JEFFCLO TRANS INC | | | SCAC4 |
| 18 | JFCO | JEFFCO FIBRES INC | | | SCAC4 |
| 19 | JFCR | J & F CARRIERS LLC | | | SCAC4 |
| 20 | JFCZ | JACKSON FARMERS COOP | | | PWRC |
| 21 | JFDS | JET FAST DELIVERY SERVICE | | | SCAC4 |
| 22 | JFDX | W.K. Horney | added 4/1975; 1/1980; eliminated 1/1985 | | NAKINA |
| 23 | JFDX | Jack F. Duckworth | added 1/1972; 1/1975; eliminated 4/1975 | | NAKINA |
| 24 | JFDX | Jack F. Duckworth | added 1/72; 1/75; eliminated 4/75 | | NRHS |
| 25 | JFDX | W.K. Horney | added 4/75; 1/80; eliminated 1/85 | | NRHS |
| 26 | JFDX | W. K. HORNEY [JACK F. DUCKWORTH] | | | PWRC |
| 27 | JFDX | W. K. Horney (First Union Rail) | | | RSRV |
| 28 | JFE | Jamaica Far East Limited | IATA: JW, Callsign: Jamaica Cargo, IATA Prefix: 751, | JA | AVCODES |
| 29 | JFEG | J F ENERGY CORPORATION | | | SCAC4 |
| 30 | JFEN | J F ENTERPRISES INC | | | SCAC4 |
| 31 | JFEQ | JACOBS FARM EQUIPMENT LTD | | | SCAC4 |
| 32 | JFFC | JETSTREAM FREIGHT SERVICES INC | | | SCAC4 |
| 33 | JFFE | JOYCE FUEL & FEEDS INC | | | SCAC4 |
| 34 | JFFF | JEFFS FAST FREIGHT INC | | | SCAC4 |
| 35 | JFFG | JAGUAR FAST FREIGHT, INC | | | SCAC1 |
| 36 | JFFG | JEFFERSON FORWARDING INC | | | SCAC4 |
| 37 | JFFI | J & F FARMS INC | | | SCAC4 |
| 38 | JFFK | JUST FOUR (4) FUN TRUCKING LLC | | | SCAC4 |
| 39 | JFFT | JEFFREY TRANSPORTATON COMPANY | | | SCAC4 |
| 40 | JFGC | J F FREIGHT COMPANY | | | SCAC4 |
| 41 | JFGH | JEFFERYS GREENHOUSES INC | | | SCAC4 |
| 42 | JFGR | JFG RV TRANSPORT COMPANY LLC | | | SCAC4 |
| 43 | JFGV | JUSTISS FREIGHT SERVICE INC | | | SCAC4 |
| 44 | JFIN | JOURNEY FREIGHT INTERNATIONAL INC | | | SCAC4 |
| 45 | JFIS | JEFFS FARMS INC | | | SCAC4 |
| 46 | JFIV | J FIVE (J5) OIL & TRUCKING INC | | | SCAC4 |
| 47 | JFJ | Jysk-Fyenske Jernbaner | 1862 - 1893 | DK | jernbanen.dk |
| 48 | JFJ | Jysk-Fyenske Jernbaner | 1868-1893 Later connected to SFJ and renamed to DSB | DK | TRAFFIC |
| 49 | JFJF | JFJ FUEL INC | | | SCAC4 |
| 50 | JFJM | JFJ MOLD PROCESSORS 1988 LTD | | | SCAC4 |
| 51 | JFJR | J FIVE (J5) RANCH | | | SCAC4 |
| 52 | JFJT | JFJ TRANSPORTATION INC | | | SCAC4 |
| 53 | JFK | Keenair Charter Ltd. | IATA: 5Q, Callsign: Keenair, | GB | AVCODES |
| 54 | JFK | Keenair Charter Ltd. | Callsign: Keenair, | GB | AVCODES |
| 55 | JFK | Keenair Charter | | | ICAO1 |
| 56 | JFKG | JOHNSON FARMS TRUCKING INC | | | SCAC4 |
| 57 | JFKT | JFK TRUCKING INC | | | SCAC4 |
| 58 | JFL | Jetfly Airlines GmbH | Callsign: Lineflyer, ICAO Callsign changed to Blue Danube. | A | AVCODES |
| 59 | JFL | Jetfly Airlines GmbH | Callsign: Blue Danube, ICAO Callsign changed from Lineflyer. | A | AVCODES |
| 60 | JFL | Jetfly Airlines | | | ICAO1 |
| 61 | JFLC | JOHNSON FREIGHT LINE CO INC | | | PWRC |
| 62 | JFLC | JETEX FREIGHT LLC | | | SCAC4 |
| 63 | JFLL | J & | | | SCAC4 |
| 64 | JFLN | JEFFERSON LINES | | | SCAC4 |
| 65 | JFMC | J F MACHINING CO INC | | | SCAC4 |
| 66 | JFMG | J F M TRUCKING INC | | | SCAC4 |
| 67 | JFMI | JOEY FREIGHT MANAGEMENT INC | | | SCAC4 |
| 68 | JFML | JONES FEED MILLS LTD | | | SCAC4 |
| 69 | JFMS | JEFFERY'S MOTOR SERVICE, INC | | | SCAC1 |
| 70 | JFMT | JAFTECH MANUFACTURING LTD | | | SCAC4 |
| 71 | JFMV | JFMIV TRANSPORT SERVICE | | | SCAC4 |
| 72 | JFNR | JEFFRIES NURSERIES LTD | | | SCAC4 |
| 73 | JFNU | JOYFULNESS GLOBAL PTE. LTD. | | SGP | BIC |
| 74 | JFOQ | JOHNSON, FORDE OIL CO | | | SCAC4 |
| 75 | JFPI | JOLLY FARMER TRANSPORT INC | | | SCAC4 |
| 76 | JFPM | JOES FUEL COMPANY INC | | | SCAC4 |
| 77 | JFRA | JOY, FRANK | | | SCAC4 |
| 78 | JFRM | JUNCTION FARMS LTD | | | SCAC4 |
| 79 | JFRT | JFR TRANSPORTATION INC | | | SCAC4 |
| 80 | JFS | Juanda Flying School | Callsign: Jaemco, | RI | AVCODES |
| 81 | JFS | Juanda Flying School | | | ICAO1 |
| 82 | JFSH | JTS FREIGHT SYSTEMS LLC | | | SCAC4 |
| 83 | JFSI | JAVA FARM SUPPLY INC | | | SCAC4 |
| 84 | JFSM | JEFFS MOVERS INC | | | SCAC4 |
| 85 | JFSN | JF STOLL NORTH AMERICA INC | | | SCAC4 |
| 86 | JFSQ | JASMIN FREIGHT SYSTEMS INC | | | SCAC4 |
| 87 | JFST | JFS TRANSPORTES | | | SCAC4 |
| 88 | JFSU | ST JOHN FREIGHT SYSTEMS LTD | | IND | BIC |
| 89 | JFSU | ST JOHN FREIGHT SYSTEMS LTD | | | SCAC4 |
| 90 | JFSX | Fruit Growers Express Co. | 1/1941-1/1946 | | NAKINA |
| 91 | JFSX | Fruit Growers Express Co. (reporting mark for John F. Stegner Co.) | 7/1937-4/1938 | | NAKINA |
| 92 | JFSX | John F. Stegner | 7/1935 | | NAKINA |
| 93 | JFSX | John F. Stegner Co. (National Car Co.) | Apr-38 | | NRHS |
| 94 | JFSX | *FRUIT GROWERS EXPRESS CO. (JOHN F. STEGNER CO.) | | | PWRC |
| 95 | JFSX | +JFS RAILCAR, INC. | | | PWRC |
| 96 | JFSX | JFS RAILCAR INC | | | SCAC4 |
| 97 | JFT | Jet Fret SA | IATA: JF, Callsign: Jet Fret, | F | AVCODES |
| 98 | JFTB | J F TRANSPORT TRUCKING CORP | | | SCAC4 |
| 99 | JFTD | JF TRANSPORT INC | | | SCAC4 |
| 100 | JFTI | JETSPEED INC | | | SCAC4 |
