Best time to fly out of Friedman Memorial (SUN)
The early-flight folk wisdom holds up at Friedman Memorial: departures in the 6–8am band left on time 95.3% of the time, against 79.1% in the 8–10am 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 | 95 | 96 | 95 | 96 | 94 | 96 | 95 |
| 8–10am | – | – | – | – | – | 83 | 76 |
| 10am–12pm | – | – | – | – | – | – | – |
| 12–2pm | 90 | 90 | 85 | 86 | 82 | 84 | 82 |
| 2–4pm | 84 | 86 | 87 | 82 | 86 | 88 | 83 |
| 4–6pm | – | – | – | – | – | – | – |
| 6–8pm | – | – | – | – | – | – | – |
| 8–10pm | – | – | – | – | – | – | – |
| 10pm–12am | – | – | – | – | – | – | – |
The steadiest stretch at SUN was 6–8am — 95.3% of departures left on time across 1,817 flights. The weakest was 8–10am at 79.1%.
The year at SUN
February was the hard month at SUN: 82.7% of departures left on time, across 778 flights. November was the easy one at 98%. 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 | 83.1% | 872 |
| February | 82.7% | 778 |
| March | 85.2% | 857 |
| April | 91% | 378 |
| May | 89.9% | 387 |
| June | 86.4% | 560 |
| July | 87.6% | 635 |
| August | 86.8% | 607 |
| September | 93.6% | 436 |
| October | 94.6% | 388 |
| November | 98% | 294 |
| December | 83.3% | 642 |
Airlines at SUN
Every airline with at least 100 departures from SUN, 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 |
|---|---|---|---|---|
| SkyWest Airlines | 87.2% | 123 min | 1% | 6,834 |
What delays out of SUN were put down to
Airlines file a reason with every arrival running 15 minutes late or more. Across 972 flights that departed SUN and ran 15 minutes late or more, the delay minutes break down with 45.4% put down to airline operations and 20.9% to severe weather.
- Late-arriving aircraft 14.1%
- Airline operations 45.4%
- Air traffic & airport volume 19.6%
- Severe weather 20.9%
- Security 0%
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 SUN
Of 6,836 scheduled arrivals into SUN, 85.4% reached the gate less than 15 minutes behind schedule. Of the 867 arrivals that ran late, 51.6% 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 SUN
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.
SUN in one number
Friedman Memorial (SUN)
Rank 190 of 363 US airports by departures. Steadiest stretch of the day: 6–8am. Hardest month: February.
Questions about SUN
- What is the best time of day to fly out of Friedman Memorial?
- 6–8am. Departures in that band left on time 95.3% of the time across 1,817 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 8–10am band was the weakest at 79.1%.
- What is the worst month to fly out of SUN?
- February: 82.7% of the departures that flew left on time, with 778 scheduled. November was the other end of the year at 98%. Each figure pools three years of that calendar month.
- How often are flights cancelled at SUN?
- 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.