Best time to fly out of Montgomery (Dannelly ) (MGM)
The early-flight folk wisdom holds up at Montgomery (Dannelly ): departures in the 6–8am band left on time 87% of the time, against 67.6% in the 6–8pm band. These are historical odds, not forecasts. The records say what happened on this schedule over three years; they know nothing about tomorrow’s thunderstorm.
Data through June 2026 · Bureau of Transportation Statistics
On-time rate by hour and day
On this page, “on time” means a departure that pushed back less than 15 minutes behind its scheduled time — the Bureau of Transportation Statistics definition, and the one airlines are held to.
| Departure time | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| Before 6am | – | – | – | – | – | – | – |
| 6–8am | 87 | 90 | 89 | 88 | 90 | 84 | 82 |
| 8–10am | – | – | – | – | – | – | – |
| 10am–12pm | – | – | – | – | – | – | – |
| 12–2pm | 76 | 80 | 80 | 79 | 71 | – | 66 |
| 2–4pm | – | – | – | – | – | 81 | – |
| 4–6pm | 72 | 74 | 65 | 71 | 66 | 72 | 62 |
| 6–8pm | 70 | 73 | 73 | 67 | 65 | – | 57 |
| 8–10pm | – | – | – | – | – | – | – |
| 10pm–12am | – | – | – | – | – | – | – |
The steadiest stretch at MGM was 6–8am — 87% of departures left on time across 1,863 flights. The weakest was 6–8pm at 67.6%. 6–8am departures from MGM left on time 87% of the time across 1,863 flights; 6–8pm departures, 67.6% across 858. That is a gap of 19.4 points, and it is the whole case for the early flight.
The year at MGM
May was the hard month at MGM: 69.4% of departures left on time, across 616 flights. October was the easy one at 86.7%. Each month pools three years of that month, so a single bad week does not decide it.
| Month | Share departures that left on time | Flights |
|---|---|---|
| January | 75.3% | 490 |
| February | 74.4% | 465 |
| March | 77.2% | 518 |
| April | 78.2% | 551 |
| May | 69.4% | 616 |
| June | 71.9% | 590 |
| July | 72% | 622 |
| August | 79.7% | 612 |
| September | 84.6% | 600 |
| October | 86.7% | 619 |
| November | 83.4% | 557 |
| December | 72.4% | 535 |
Airlines at MGM
Every airline with at least 100 departures from MGM, busiest first. These are that airline’s departures from this airport only — its record across the country sits on its own page.
| Airline | Left on time | Typical delay | Cancelled | Departures |
|---|---|---|---|---|
| PSA Airlines | 71.5% | 137 min | 6.5% | 2,206 |
| SkyWest Airlines | 76% | 112 min | 1.2% | 2,103 |
| Endeavor Air | 83.7% | 71 min | 0.6% | 1,261 |
| Envoy Air | 82.4% | 74 min | 0.7% | 1,205 |
What delays out of MGM were put down to
Airlines file a reason with every arrival running 15 minutes late or more. Across 1,570 flights that departed MGM and ran 15 minutes late or more, the delay minutes break down with 43.7% put down to airline operations and 30% to late-arriving aircraft.
- Late-arriving aircraft 30%
- Airline operations 43.7%
- Air traffic & airport volume 11%
- Severe weather 15.1%
- Security 0.2%
Late-arriving aircraft is the knock-on category: the plane came in late, so it went out late again. It is why a 7am problem in Newark is still a problem in Denver at dinnertime, and why it is usually the biggest slice on the bar.
If you are connecting through MGM
Of 6,774 scheduled arrivals into MGM, 76.1% reached the gate less than 15 minutes behind schedule. Of the 1,452 arrivals that ran late, 45.2% were no more than 45 minutes behind — which is the difference between a tight connection and a new boarding pass.
Work out a specific layover — pick the airport and the minutes you have, and the tool reads the same arrival records back as a share.
Busiest routes out of MGM
Ranked by flights, with the share that arrived on time at the far end. Where a route carries enough flights for a page of its own the chip goes there; otherwise it goes to the destination airport.
MGM in one number
Montgomery (Dannelly ) (MGM)
Rank 191 of 363 US airports by departures. Steadiest stretch of the day: 6–8am. Hardest month: May.
Questions about MGM
- What is the best time of day to fly out of Montgomery (Dannelly )?
- 6–8am. Departures in that band left on time 87% of the time across 1,863 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 6–8pm band was the weakest at 67.6%.
- Is the early flight out of MGM really more reliable?
- 6–8am departures from MGM left on time 87% of the time across 1,863 flights; 6–8pm departures, 67.6% across 858. That is a gap of 19.4 points, and it is the whole case for the early flight.
- What is the worst month to fly out of MGM?
- May: 69.4% of the departures that flew left on time, with 616 scheduled. October was the other end of the year at 86.7%. Each figure pools three years of that calendar month.
- Which airline is most on time at MGM?
- Endeavor Air — 83.7% of its 1,261 departures from MGM left on time. PSA Airlines sat at the other end at 71.5% over 2,206 flights. Only airlines with at least 100 departures here are ranked.
- How often are flights cancelled at MGM?
- 2.7% of scheduled departures were cancelled over July 2023 through June 2026. Cancellations are counted against everything scheduled, not against everything that flew — a rate that looks small still adds up to real people in a rebooking line.