On-time performance

Key Lime Air (LYM) on-time performance, September 2026

1,952 scheduled Key Lime Air departures in US airspace in September 2026, 80.6% 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)

1,952
departures
80.6%
on time (within 15 min)
6.9%
45+ min late
3.9 min
average departure delay

On time, day by day

Share of Key Lime Air departures within 15 minutes of schedule, by day. Light bars show each day's departures for context. Worst day: Saturday 19 September at 67.2%. Best: Monday 14 September at 94.5%.

60%70%80%90%100%2026-09-01: 66 departures, 72.7% on time2026-09-02: 61 departures, 82.0% on time2026-09-03: 85 departures, 81.2% on time2026-09-04: 75 departures, 77.3% on time2026-09-05: 64 departures, 79.7% on time2026-09-06: 51 departures, 90.2% on time2026-09-07: 61 departures, 77.0% on time2026-09-08: 48 departures, 85.4% on time2026-09-09: 64 departures, 79.7% on time2026-09-10: 78 departures, 83.3% on time2026-09-11: 80 departures, 81.2% on time2026-09-12: 60 departures, 90.0% on time2026-09-13: 54 departures, 85.2% on time2026-09-14: 55 departures, 94.5% on time2026-09-15: 59 departures, 76.3% on time2026-09-16: 64 departures, 82.8% on time2026-09-17: 74 departures, 78.4% on time2026-09-18: 79 departures, 78.5% on time2026-09-19: 64 departures, 67.2% on time2026-09-20: 65 departures, 89.2% on time2026-09-21: 54 departures, 90.7% on time2026-09-22: 68 departures, 76.5% on time2026-09-23: 61 departures, 90.2% on time2026-09-24: 73 departures, 82.2% on time2026-09-25: 72 departures, 68.1% on time2026-09-26: 74 departures, 74.3% on time2026-09-27: 58 departures, 79.3% on time2026-09-28: 57 departures, 78.9% on time2026-09-29: 64 departures, 79.7% on time2026-09-30: 64 departures, 76.6% on time2026-09-01: 72.7% on time (66 departures)012026-09-02: 82.0% on time (61 departures)2026-09-03: 81.2% on time (85 departures)2026-09-04: 77.3% on time (75 departures)042026-09-05: 79.7% on time (64 departures)2026-09-06: 90.2% on time (51 departures)2026-09-07: 77.0% on time (61 departures)072026-09-08: 85.4% on time (48 departures)2026-09-09: 79.7% on time (64 departures)2026-09-10: 83.3% on time (78 departures)102026-09-11: 81.2% on time (80 departures)2026-09-12: 90.0% on time (60 departures)2026-09-13: 85.2% on time (54 departures)132026-09-14: 94.5% on time (55 departures)2026-09-15: 76.3% on time (59 departures)2026-09-16: 82.8% on time (64 departures)162026-09-17: 78.4% on time (74 departures)2026-09-18: 78.5% on time (79 departures)2026-09-19: 67.2% on time (64 departures)192026-09-20: 89.2% on time (65 departures)2026-09-21: 90.7% on time (54 departures)2026-09-22: 76.5% on time (68 departures)222026-09-23: 90.2% on time (61 departures)2026-09-24: 82.2% on time (73 departures)2026-09-25: 68.1% on time (72 departures)252026-09-26: 74.3% on time (74 departures)2026-09-27: 79.3% on time (58 departures)2026-09-28: 78.9% on time (57 departures)282026-09-29: 79.7% on time (64 departures)2026-09-30: 76.6% on time (64 departures)30

Airports, ranked by on-time share

Airports with at least 30 Key Lime Air departures in the month.

AirportDeparturesOn time45+ min lateAvg delay (min)
PHX Phoenix3697.2%2.8%-9.9
MSP Minneapolis7893.6%1.3%-3.0
PUB Pueblo Memorial5793.0%0.0%-3.3
CEZ Cortez10287.3%2.9%1.0
DFW Dallas-Fort Worth5186.3%5.9%7.6
TVF Thief River Falls5284.6%1.9%6.4
DEN Denver57279.4%8.0%1.0
MKL Jackson5678.6%10.7%10.7
ORD Chicago10671.7%13.2%8.2
MKG Muskegon5271.2%11.5%19.3
BFF Scottsbluff3770.3%5.4%8.6
ATL Atlanta4969.4%6.1%12.3
CYS Cheyenne3033.3%6.7%21.5

Least punctual routes

Routes with at least 20 Key Lime Air departures, lowest on-time share first.

RouteFlightsOn timeAvg delay
DEN to KRIW Denver to 2133.3%21.7
CYS to DEN Cheyenne to Denver2638.5%20.8
ATL to KGLH Atlanta to 2458.3%19.8
ORD to MKL Chicago to Jackson2759.3%16.3
DEN to MTJ Denver to Montrose2161.9%11.9
BFF to DEN Scottsbluff to Denver2166.7%12.5
ORD to MKG Chicago to Muskegon5068.0%9.7
MKL to ORD Jackson to Chicago2568.0%13.6
MKG to ORD Muskegon to Chicago5170.6%19.7
KMCK to DEN to Denver5172.5%10.2

Busiest routes

The ten routes Key Lime Air flew most this month.

RouteFlightsOn timeAvg delay
DEN to CEZ Denver to Cortez7284.7%-3.0
CEZ to DEN Cortez to Denver7181.7%2.2
DEN to KAIA Denver to 6686.4%-6.0
KAIA to DEN to Denver6381.0%3.0
PUB to DEN Pueblo Memorial to Denver5492.6%-3.6
DEN to PUB Denver to Pueblo Memorial5392.5%-12.5
DEN to KCDR Denver to 5290.4%-6.6
DEN to KALS Denver to 5288.5%-3.6
MSP to TVF Minneapolis to Thief River Falls5194.1%-3.6
KCDR to DEN to Denver5178.4%5.1

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 DEN, $49 Free 7-day sample See a sample month-pack (SFO)

Other months for Key Lime Air

September 2026

Airport pages for September 2026

DENORDMSPDFWATLPHX

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).