Route on-time record
MRY to DEN: most on-time flights and the best time to fly
Monterey (Monterey Regional Airport) to Denver (Denver International Airport). 729 nonstop flights in Jun 2025 to May 2026, 93% arrived within 15 minutes and 0.1% were cancelled. The most reliable flight number was SkyWest 5587 at 5:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
MRY → DEN
Monterey to Denver: 729 nonstop flights a year
On time (12 months)
93%
Cancelled
0.1%
avg delay 6 min
Best time to leave
Before 9 AM
96% on time vs 90% noon to 3 PM
Most reliable airline
SkyWest
93% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 5587 · sold as United Express, Delta Connection, American Eagle or Alaska
5:00 AM → 8:46 AM2h 46m nonstop
Local times, typical schedule. Last flown 2026-05-20.
96%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 97% of the time (351 flights, Jun 2025 to May 2026).
- Never cancelled in 352 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; Noon to 3 PM: 90%).
Strong track record · 351 flights
Find 5:00 AM flight fares Opens this date on Aviasales#2 · United 2771
5:00 AM → 8:32 AM2h 32m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; Noon to 3 PM: 90%).
- Short track record (11 flights), so its score leans on the route's record at this hour.
Limited track record · 11 flights
Find United 2771 fares Opens this date on Aviasales#3 · SkyWest 4713 · sold as United Express, Delta Connection, American Eagle or Alaska
12:40 PM → 4:25 PM2h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.3%
- Avg arrival delay
- 8 min
- Arrived on time 90% of the time (360 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 90% on time; Before 9 AM: 96%).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Strong track record · 360 flights
Find 12:40 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)93%
718 flights · 93% on time as flown · 0.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
364 flights · avg delay 5 min
- Noon to 3 PM90%
364 flights · avg delay 8 min
Best day: Saturday (93%). Worst: Monday (87%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)39%
- Air traffic control and airport volume27%
- Late-arriving aircraft22%
- Severe weather12%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
MRY to DEN questions
- What time of day is best to fly MRY to DEN?
- Before 9 AM: 96% of flights arrived on time, against 90% for departures noon to 3 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from MRY to DEN?
- SkyWest, with a season-adjusted 93% chance of operating and arriving on time over 718 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on MRY to DEN?
- August (83% on time); the best was October (96%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from MRY
- DEN to MRY (return)
- MRY to PHX 81%
- MRY to LAX 88%
- MRY to SFO 74%
- MRY to SAN 80%
Live status: FAA delays and ground stops