28 active days
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Tracked directional route
BFI → SDF
King County International Airport → Louisville International Airport
BFI
KBFIKing County International AirportOpen live airport profile →DestinationSDF
KSDFLouisville International AirportOpen live airport profile →View return routeSDF → BFIAnalysis window
Aug 20 – Sep 24, 2026
Every derived statistic, trend, operator and tail number breakdown, flight observation, and mapped path below uses this flight-date window.
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1,920 mi avg per flight
3 hr 26 min average
Average across flights included in analytics
5 flight numbers
Tracked activity
Aug 20 – Sep 24, 2026 · 28 active days
Flights38
Aug 20
Aug 21
Aug 22
Aug 23
Aug 25
Aug 26
Aug 27
Aug 28
Aug 29
Aug 30
Sep 1
Sep 2
Sep 3
Sep 4
Sep 5
Sep 6
Sep 8
Sep 9
Sep 10
Sep 11
Sep 12
Sep 13
Sep 15
Sep 17
Sep 18
Sep 20
Sep 22
Sep 23
Observed operators
Operators tracked on BFI → SDF
Operator activity within Aug 20 – Sep 24, 2026.
| Operator | Flights | Flight numbers | Tail numbers | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
UPS (5X)UPS | 38 | 5 | 28 | 72,946 mi | Aug 20, 2026, 12:47 PM UTC | Sep 23, 2026, 5:27 PM UTC |
Observed services
Flight numbers tracked on BFI → SDF
Open a flight number for its complete tracked profile.
| Flight number | Flights | Tail numbers | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|
| 21 | 17 | 40,329 mi | Aug 21, 2026, 1:27 PM UTC | Sep 23, 2026, 5:27 PM UTC | |
| 8 | 7 | 15,451 mi | Aug 20, 2026, 12:47 PM UTC | Sep 22, 2026, 4:25 PM UTC | |
| 4 | 3 | 7,602 mi | Aug 22, 2026, 1:18 PM UTC | Sep 12, 2026, 4:25 PM UTC | |
| 3 | 3 | 5,793 mi | Aug 28, 2026, 12:57 PM UTC | Sep 11, 2026, 4:15 PM UTC | |
| 2 | 2 | 3,772 mi | Aug 22, 2026, 2:28 PM UTC | Aug 29, 2026, 6:08 PM UTC |
Observed tail numbers
Tail numbers tracked on BFI → SDF
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Flight numbers | Tracked distance | Last observed |
|---|---|---|---|---|---|
| B763 | 3 | 2 | 5,576 mi | Sep 12, 2026, 4:25 PM UTC | |
| B763 | 3 | 2 | 5,692 mi | Sep 5, 2026, 4:39 PM UTC | |
| B763 | 2 | 1 | 3,904 mi | Sep 22, 2026, 5:44 PM UTC | |
| B763 | 2 | 1 | 3,740 mi | Sep 10, 2026, 5:01 PM UTC | |
| B752 | 2 | 1 | 3,841 mi | Sep 10, 2026, 4:07 PM UTC | |
| B763 | 2 | 2 | 3,827 mi | Sep 8, 2026, 5:33 PM UTC |
Observed aircraft types
Aircraft types tracked on BFI → SDF
Observed flights grouped by aircraft designator and matched to the aircraft reference catalog.
Observation log
Flight observations
Latest 100 flights on BFI → SDF within Aug 20 – Sep 24, 2026