Best time to fly out of Roberts (RDM)
The early-flight folk wisdom holds up at Roberts: departures in the 6–8am band left on time 91.4% of the time, against 75.1% in the 12–2pm 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 | 90 | 92 | 91 | 91 | 91 | 90 | 91 |
| 6–8am | 89 | 92 | 92 | 92 | 95 | 90 | 91 |
| 8–10am | 90 | 84 | 90 | 89 | 87 | 87 | 92 |
| 10am–12pm | 91 | 90 | 88 | 87 | 86 | 92 | 87 |
| 12–2pm | 69 | 77 | 76 | 78 | 78 | 74 | 73 |
| 2–4pm | 85 | 86 | 87 | 83 | 81 | 86 | 83 |
| 4–6pm | 82 | 83 | 82 | 82 | 81 | 83 | 78 |
| 6–8pm | 77 | 82 | 87 | 76 | 73 | 83 | 76 |
| 8–10pm | – | – | – | – | – | – | – |
| 10pm–12am | – | – | – | – | – | – | – |
The steadiest stretch at RDM was 6–8am — 91.4% of departures left on time across 2,524 flights. The weakest was 12–2pm at 75.1%. 6–8am departures from RDM left on time 91.4% of the time across 2,524 flights; 6–8pm departures, 78.7% across 2,001. That is a gap of 12.7 points, and it is the whole case for the early flight.
The year at RDM
July was the hard month at RDM: 79.2% of departures left on time, across 1,604 flights. October was the easy one at 89.4%. 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 | 80.2% | 1,433 |
| February | 79.7% | 1,353 |
| March | 84.6% | 1,562 |
| April | 86.8% | 1,462 |
| May | 85.1% | 1,560 |
| June | 79.4% | 1,620 |
| July | 79.2% | 1,604 |
| August | 85.6% | 1,633 |
| September | 88.4% | 1,627 |
| October | 89.4% | 1,556 |
| November | 87.4% | 1,480 |
| December | 80.9% | 1,486 |
Airlines at RDM
Every airline with at least 100 departures from RDM, 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 | 86.2% | 97 min | 1.4% | 11,407 |
| United Airlines | 75.7% | 81 min | 0.8% | 3,527 |
| Alaska Airlines | 82.7% | 57 min | 1.6% | 1,647 |
| Envoy Air | 91.7% | 113 min | 0.5% | 1,568 |
| American Airlines | 54.5% | 146 min | 1.3% | 227 |
What delays out of RDM were put down to
Airlines file a reason with every arrival running 15 minutes late or more. Across 3,158 flights that departed RDM and ran 15 minutes late or more, the delay minutes break down with 38.1% put down to airline operations and 22.9% to late-arriving aircraft.
- Late-arriving aircraft 22.9%
- Airline operations 38.1%
- Air traffic & airport volume 20.8%
- Severe weather 18.1%
- Security 0.1%
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 RDM
Of 18,378 scheduled arrivals into RDM, 82.3% reached the gate less than 15 minutes behind schedule. Of the 2,953 arrivals that ran late, 61.1% 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 RDM
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.
- SEA 83.6% on time · 5,323 flights
- SFO 72.4% on time · 3,441 flights
- PHX 90.2% on time · 2,322 flights
- SLC 90.2% on time · 2,202 flights
- DEN 82.8% on time · 2,188 flights
- LAX 83.1% on time · 1,384 flights
- SAN 77.8% on time · 728 flights
- PDX 88.9% on time · 319 flights
- BUR 83.7% on time · 247 flights
- DFW 56.1% on time · 222 flights
RDM in one number
Roberts (RDM)
Rank 126 of 363 US airports by departures. Steadiest stretch of the day: 6–8am. Hardest month: July.
Questions about RDM
- What is the best time of day to fly out of Roberts?
- 6–8am. Departures in that band left on time 91.4% of the time across 2,524 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 12–2pm band was the weakest at 75.1%.
- Is the early flight out of RDM really more reliable?
- 6–8am departures from RDM left on time 91.4% of the time across 2,524 flights; 6–8pm departures, 78.7% across 2,001. That is a gap of 12.7 points, and it is the whole case for the early flight.
- What is the worst month to fly out of RDM?
- July: 79.2% of the departures that flew left on time, with 1,604 scheduled. October was the other end of the year at 89.4%. Each figure pools three years of that calendar month.
- Which airline is most on time at RDM?
- Envoy Air — 91.7% of its 1,568 departures from RDM left on time. American Airlines sat at the other end at 54.5% over 227 flights. Only airlines with at least 100 departures here are ranked.
- How often are flights cancelled at RDM?
- 1.2% 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.