On-time performance

Labcorp (SKQ) on-time performance, September 2026

1,162 scheduled Labcorp departures in US airspace in September 2026, 75.8% of them on time. Measured from FAA departure data, updated every morning.

1 September to 30 September 2026 · Free to quote with credit to PlaneTrack (CC BY 4.0)

1,162
departures
75.8%
on time (within 15 min)
11.7%
45+ min late
13.9 min
average departure delay

On time, day by day

Share of Labcorp departures within 15 minutes of schedule, by day. Light bars show each day's departures for context. Worst day: Monday 7 September at 33.3%. Best: Tuesday 8 September at 100.0%.

50%70%90%2026-09-01: 51 departures, 72.5% on time2026-09-02: 54 departures, 81.5% on time2026-09-03: 54 departures, 83.3% on time2026-09-04: 55 departures, 65.5% on time2026-09-05: 47 departures, 59.6% on time2026-09-06: 10 departures, 90.0% on time2026-09-07: 3 departures, 33.3% on time2026-09-08: 12 departures, 100.0% on time2026-09-09: 55 departures, 76.4% on time2026-09-10: 52 departures, 67.3% on time2026-09-11: 53 departures, 75.5% on time2026-09-12: 45 departures, 73.3% on time2026-09-13: 10 departures, 80.0% on time2026-09-14: 12 departures, 66.7% on time2026-09-15: 54 departures, 75.9% on time2026-09-16: 53 departures, 66.0% on time2026-09-17: 60 departures, 81.7% on time2026-09-18: 52 departures, 71.2% on time2026-09-19: 41 departures, 75.6% on time2026-09-20: 11 departures, 100.0% on time2026-09-21: 13 departures, 84.6% on time2026-09-22: 52 departures, 82.7% on time2026-09-23: 53 departures, 69.8% on time2026-09-24: 51 departures, 78.4% on time2026-09-25: 49 departures, 83.7% on time2026-09-26: 46 departures, 82.6% on time2026-09-27: 9 departures, 88.9% on time2026-09-28: 14 departures, 57.1% on time2026-09-29: 45 departures, 82.2% on time2026-09-30: 46 departures, 78.3% on time2026-09-01: 72.5% on time (51 departures)012026-09-02: 81.5% on time (54 departures)2026-09-03: 83.3% on time (54 departures)2026-09-04: 65.5% on time (55 departures)042026-09-05: 59.6% on time (47 departures)2026-09-06: 90.0% on time (10 departures)2026-09-07: 33.3% on time (3 departures)072026-09-08: 100.0% on time (12 departures)2026-09-09: 76.4% on time (55 departures)2026-09-10: 67.3% on time (52 departures)102026-09-11: 75.5% on time (53 departures)2026-09-12: 73.3% on time (45 departures)2026-09-13: 80.0% on time (10 departures)132026-09-14: 66.7% on time (12 departures)2026-09-15: 75.9% on time (54 departures)2026-09-16: 66.0% on time (53 departures)162026-09-17: 81.7% on time (60 departures)2026-09-18: 71.2% on time (52 departures)2026-09-19: 75.6% on time (41 departures)192026-09-20: 100.0% on time (11 departures)2026-09-21: 84.6% on time (13 departures)2026-09-22: 82.7% on time (52 departures)222026-09-23: 69.8% on time (53 departures)2026-09-24: 78.4% on time (51 departures)2026-09-25: 83.7% on time (49 departures)252026-09-26: 82.6% on time (46 departures)2026-09-27: 88.9% on time (9 departures)2026-09-28: 57.1% on time (14 departures)282026-09-29: 82.2% on time (45 departures)2026-09-30: 78.3% on time (46 departures)30

Airports, ranked by on-time share

Airports with at least 30 Labcorp departures in the month.

AirportDeparturesOn time45+ min lateAvg delay (min)
BWI Baltimore4192.7%0.0%-14.2
USA Concord3488.2%0.0%-10.0
PWK Chicago/Prospect Heights/Wheeling6385.7%3.2%-1.3
CRW Charleston3982.1%0.0%-0.6
SAV Savannah4580.0%2.2%1.6
CAE Colombia4379.1%0.0%-1.5
RIC Richmond6070.0%25.0%27.2
BHM Birmingham7865.4%25.6%42.1

Least punctual routes

Routes with at least 20 Labcorp departures, lowest on-time share first.

RouteFlightsOn timeAvg delay
SDF to KOSU Louisville to 2133.3%21.3
KPAH to SDF to Louisville2138.1%23.5
TPA to OPF Tampa to Miami2347.8%112.1
RIC to KPGV Richmond to 3557.1%55.9
KOSU to PWK to Chicago/Prospect Heights/Wheeling5360.4%54.8
KOSU to STL to St. Louis2466.7%60.8
KOSU to KBUY to 4269.0%18.0
KBUY to RIC to Richmond2070.0%24.0
ABE to KBUY Allentown to 2572.0%9.0
SAV to CAE Savannah to Colombia4180.5%-0.9

Busiest routes

The ten routes Labcorp flew most this month.

RouteFlightsOn timeAvg delay
KBUY to KHEF to 6283.9%0.1
PWK to KOSU Chicago/Prospect Heights/Wheeling to 6287.1%-1.9
KOSU to PWK to Chicago/Prospect Heights/Wheeling5360.4%54.8
KHEF to KBUY to 4983.7%-7.1
KBUY to SAV to Savannah4292.9%2.1
KOSU to KBUY to 4269.0%18.0
BWI to KBUY Baltimore to 4192.7%-14.2
SAV to CAE Savannah to Colombia4180.5%-0.9
CRW to KOSU Charleston to 3982.1%-0.6
CAE to USA Colombia to Concord3984.6%-3.8

Go deeper: every flight behind these numbers

The airport month-pack has the whole month for one airport: movements by operator and aircraft type, go-arounds, holding, and departure delays by airline and destination, as a web report, PDF and CSV. No account needed.

Get the full month-pack for BHM, $49 Free 7-day sample See a sample month-pack (SFO)

Other months for Labcorp

September 2026

Airport pages for September 2026

BHMRICSAVCAEBWI

All US airports and airlines, September 2026

How we measure

On time means the aircraft took off within 15 minutes of its scheduled departure, after subtracting the departure airport's normal taxi time (FAA SWIM reports wheels-off, not push-back, so the median taxi time of the last 30 days is taken off every flight first). Average delay is the mean of that taxi-adjusted delay over all departures; early departures count as negative minutes, so an operator that routinely leaves early can show a negative average. 45+ min late is the share of departures that left 45 minutes or more behind schedule, the point at which most connections are at risk.

Scope: scheduled airlines only, the same set as the monthly State of the Sky report (operators with published routes; private, fractional and charter operators are left out), so the two publications give the same numbers for the same month. Departures are counted by scheduled day (UTC). Each day's flights are rolled up overnight and published the next morning; the newest day keeps filling in for a day or two and is only shown once it is substantially complete. Figures can differ by a few tenths of a point from the State of the Sky report for the same month: that report is frozen on the 2nd of the following month, while these pages are rebuilt from the live rollup, which recomputes each airport's taxi baseline nightly and re-rolls the last week of the month as late departure times arrive (September 2026 at SFO: 16,398 departures in both, 69.2% on time here against 69.5% in the report).

Source: FAA System Wide Information Management (SWIM) flight plans and departure times, processed by PlaneTrack. Free to quote with credit to PlaneTrack (CC BY 4.0).