Best time to fly out of Henry E. Rohlsen (STX)
The early-flight folk wisdom bends at Henry E. Rohlsen: the steadiest stretch was the 2–4pm band at 73.4%, while 4–6pm departures managed 72.8%. 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 | – | – | – | – | – | – | – |
| 8–10am | – | – | – | – | – | – | – |
| 10am–12pm | – | – | – | – | – | – | – |
| 12–2pm | – | – | – | – | – | – | – |
| 2–4pm | 78 | 75 | 81 | 76 | 78 | 64 | 68 |
| 4–6pm | 67 | 79 | 79 | 75 | 74 | 71 | 68 |
| 6–8pm | – | – | – | – | – | – | – |
| 8–10pm | – | – | – | – | – | – | – |
| 10pm–12am | – | – | – | – | – | – | – |
The steadiest stretch at STX was 2–4pm — 73.4% of departures left on time across 1,680 flights. The weakest was 4–6pm at 72.8%.
The year at STX
July was the hard month at STX: 69.1% of departures left on time, across 330 flights. September was the easy one at 81.6%. 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 | 73.2% | 454 |
| February | 73.7% | 405 |
| March | 75.9% | 448 |
| April | 80.4% | 347 |
| May | 81% | 321 |
| June | 72% | 325 |
| July | 69.1% | 330 |
| August | 69.5% | 271 |
| September | 81.6% | 141 |
| October | 74.9% | 169 |
| November | 76.7% | 267 |
| December | 74% | 389 |
Airlines at STX
Every airline with at least 100 departures from STX, 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 |
|---|---|---|---|---|
| American Airlines | 77.1% | 125 min | 0.7% | 2,262 |
| Spirit Airlines | 69.4% | 68 min | 1.9% | 684 |
| JetBlue Airways | 78.6% | 53 min | 0.8% | 513 |
| Delta Air Lines | 66.9% | 48 min | 2.4% | 375 |
What delays out of STX were put down to
Airlines file a reason with every arrival running 15 minutes late or more. Across 963 flights that departed STX and ran 15 minutes late or more, the delay minutes break down with 50.8% put down to late-arriving aircraft and 31.6% to airline operations.
- Late-arriving aircraft 50.8%
- Airline operations 31.6%
- Air traffic & airport volume 14.2%
- Severe weather 0.8%
- Security 2.7%
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 STX
Of 3,867 scheduled arrivals into STX, 74.3% reached the gate less than 15 minutes behind schedule. Of the 955 arrivals that ran late, 57% 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 STX
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.
STX in one number
Henry E. Rohlsen (STX)
Rank 219 of 363 US airports by departures. Steadiest stretch of the day: 2–4pm. Hardest month: July.
Questions about STX
- What is the best time of day to fly out of Henry E. Rohlsen?
- 2–4pm. Departures in that band left on time 73.4% of the time across 1,680 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 4–6pm band was the weakest at 72.8%.
- What is the worst month to fly out of STX?
- July: 69.1% of the departures that flew left on time, with 330 scheduled. September was the other end of the year at 81.6%. Each figure pools three years of that calendar month.
- Which airline is most on time at STX?
- JetBlue Airways — 78.6% of its 513 departures from STX left on time. Delta Air Lines sat at the other end at 66.9% over 375 flights. Only airlines with at least 100 departures here are ranked.
- How often are flights cancelled at STX?
- 1.1% 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.