Airplanes.live

KSDF · SDF · Louisville, Kentucky

Planes near SDF: live flight tracking at Louisville Muhammad Ali International

Louisville Muhammad Ali International (SDF / KSDF) serves Louisville, Kentucky, United States. The other great overnight freight field, with the same inverted daily rhythm.

38.171°N, 85.735°W · snapshot written

The live map

Aircraft the volunteer receiver network can currently hear around Louisville. The frame is fixed on the field; tap or click an aircraft to open its full details.

Nothing here is filtered. Military aircraft, aircraft in the FAA's LADD privacy programme and aircraft using temporary addresses all appear the same way anything else does. Open the full map to pan, zoom and switch layers.

Movements we watched happen

Snapshot written . This page refreshes by itself while it is open.

These are transitions the receiver network actually observed at SDF, each with the time it was seen. Nothing here is guessed from a timetable.

Why there may be fewer departures than arrivals

A departure is only counted once a receiver has seen the aircraft on the ground here first. That guard stops us inventing takeoffs for aircraft that merely flew overhead, and it costs us real ones: hearing an aircraft sitting on an airport surface needs a receiver with line of sight to that surface, which is the hardest reception there is. An arrival only needs the aircraft to have been seen airborne, and airborne coverage is very good.

So at any airport without a clear view of the ground, this list will show fewer departures than actually happened. If you see more arrivals than departures below, read that as a fact about where the antennas are, not about the airport.

Most recent first. Times are UTC. Recording is continuous, so a short list here means quiet hours or a thin view of the surface, not a quiet airport.
TimeMovement FlightAircraft
No movements have been watched here in the current recording window. This list fills continuously, and a short one usually means quiet hours or a thin view of the airport surface rather than an empty airport.

Nothing recorded here yet in the current window.

What appears to be inbound and outbound right now

Where the aircraft in range right now are most likely heading, worked out from their callsigns rather than watched happening.

How this list is built

We take the aircraft the receiver network can currently hear, read the callsign each one is broadcasting, and look that callsign up in an index of the routes it has actually flown before. An entry means this callsign's most commonly observed route ends at SDF. That is a good guide to where a flight is going. It is not a flight plan: nobody has told us today's routing, and we would rather say that than dress an inference up as a schedule.

The consequences are worth knowing. A diversion or an unusual routing will be listed wrong. A charter, a positioning leg, or any flight the index has not seen before is missing entirely. You will occasionally see an aircraft here sitting on the ground on the far side of a continent, which is the method showing its working rather than hiding it. There are no scheduled times or arrival estimates on this page because neither can be computed honestly from what we hold.

For gates, delays and cancellations the airline and the airport are authoritative. This page is for what is actually in the air.

Inbound nearest 20 of 60

Aircraft whose callsign most often ends at SDF, nearest first. Distance is straight line from the field, not track miles.
FlightFrom Altitude Ground speed Distance
UPS1337B763 · N376UPTampaKTPA / TPA8,225 ft276 kt27 nmSE of the field
UPS901B763 · N353UPOntarioKONT / ONT11,950 ft340 kt37 nmSW of the field
UPS1291A306 · N174UPColumbiaKCAE / CAE10,925 ft312 kt39 nmSE of the field
UPS617B763 · N348UPChicago/RockfordKRFD / RFD12,825 ft356 kt40 nmWNW of the field
UPS733B763 · N341UPOklahoma CityKOKC / OKC14,875 ft359 kt44 nmSW of the field
UPS1329B763 · N916UPOrlandoKMCO / MCO17,200 ft405 kt54 nmSE of the field
UPS1481A306 · N124UPDetroitKDTW / DTW23,000 ft454 kt83 nmNE of the field
FRG1953E120 · N124HLSouth BendKSBN / SBN21,000 ft306 kt99 nmN of the field
SNC1255SH36 · N688ANBeaverKBKW / BKW7,825 ft200 kt117 nmE of the field
UPS1139B752 · N402UPSyracuseKSYR / SYR30,775 ft481 kt121 nmNNE of the field
EDV5070CRJ7 · N340CAMinneapolisKMSP / MSP29,000 ft461 kt142 nmNW of the field
UPS1219B763 · N385UPDullesKIAD / IAD32,025 ft451 kt143 nmE of the field
AAL647A319 · N807AWMiamiKMIA / MIA32,600 ft473 kt152 nmSE of the field
UPS1375A306 · N158UPKnoxville/MaryvilleKTYS / TYS10,675 ft301 kt155 nmSSE of the field
SNC1259SH36 · N476RWCharlestonKCRW / CRW6,250 ft157 kt181 nmE of the field
UPS1357B752 · N444UPHuntsvilleKHSV / HSV20,550 ft395 kt192 nmS of the field
UPS1391B752 · N418UPJacksonKJAN / JAN29,000 ft416 kt200 nmSSW of the field
UPS541A306 · N127UPMilwaukeeKMKE / MKE21,975 ft458 kt201 nmNNW of the field
UPS1189B763 · N383UPPhiladelphiaKPHL / PHL32,025 ft433 kt216 nmE of the field
UPS705B752 · N420UPLafayetteKLFT / LFT31,000 ft461 kt239 nmSW of the field

Outbound 9 aircraft

Aircraft whose callsign most often begins at SDF, nearest first. Distance is straight line from the field, not track miles.
FlightTo Altitude Ground speed Distance
RPA3694E75L · N751YXNewarkKEWR / EWR29,200 ft455 kt168 nmNW of the field
UAL1510B38M · N17336DenverKDEN / DEN37,000 ft505 kt231 nmNE of the field
SKW5603CRJ7 · N788SKChicagoKORD / ORDon the ground0 kt250 nmNNW of the field
AAL1325A319 · N814AWMiamiKMIA / MIA31,975 ft363 kt287 nmE of the field
MXY753BCS3 · N257BZFort MyersKRSW / RSW39,550 ft452 kt549 nmSSE of the field
UPS72B748 · N615UPAnchoragePANC / ANC40,000 ft437 kt2,522 nmNW of the field
AAL399A21N · N436ANDallas-Fort WorthKDFW / DFW15,375 ft295 kt2,680 nmNW of the field
UPS64B748 · N634UPAnchoragePANC / ANC40,000 ft477 kt5,873 nmNW of the field
UPS108B744 · N582UPNaritaRJAA / NRT36,000 ft502 kt5,930 nmNNW of the field

About Louisville Muhammad Ali International

  • ICAO codeKSDF
  • IATA codeSDF
  • ServesLouisville
  • RegionKentucky, United States
  • Coordinates38.171°N, 85.735°W

Louisville Muhammad Ali International sits south of the city near the Ohio River. Like Memphis it is built around an overnight parcel operation, and like Memphis its busiest hours are the ones when most airports are empty. The aircraft mix leans heavily toward freighters, including types that no longer carry passengers anywhere.

The best time to watch is between midnight and dawn local time. Arrivals converge from across the continent within a narrow window, which is a genuinely striking thing to see played out on a map.

What the codes mean

Airports carry two identifiers and they are not interchangeable. SDF is the IATA code: three letters, the one printed on a boarding pass and a baggage tag, assigned for commercial purposes and reused across the world without any geographic logic. KSDF is the ICAO code: four letters, used by air traffic control, flight planning systems and trackers like this one. Its first letter, K, marks the contiguous United States, because ICAO allocates the code space by region.

The callsigns in the lists above are a third thing again. A callsign is what the crew typed into the transponder for this leg, so it changes flight by flight, while the registration and the 24-bit hex address stay with the airframe. When a callsign and a registration disagree, the registration is usually the more reliable of the two.

How to read the numbers

Altitude is pressure altitude, which is what the aircraft's air data system reads with a standard pressure setting. It is not height above the ground and it is not always the altitude the crew is flying to. Near Louisville that gap is most obvious on approach, when a tracker can show a figure that does not match what is on the flight deck.

Ground speed is speed across the earth, not through the air. A strong tailwind can add a hundred knots or more to it without the aircraft flying any faster, which is why two aircraft at the same level going opposite ways can show wildly different numbers. Track is the direction of travel over the ground, which is not the direction the nose is pointing when there is any crosswind at all.

Aircraft go missing from this map for reasons that have nothing to do with the aircraft. Reception is line of sight, so terrain and distance cut it off abruptly; a good deal of light aviation in the United States broadcasts on 978 MHz rather than 1090 MHz; and plenty of aircraft, including gliders and older light types, carry no ADS-B at all and are not required to. How ADS-B works covers all of that properly.

Other airports on the map

The nearest fields with their own live page:

Watch it happen live

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