Oakland (OAK) to Denver (DEN): On-Time Performance
Data through July 2026
When you fly OAK to DEN matters as much as anything else about the booking: the route swung from 93% on-time in November 2024 to just 62% in June 2026. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 70%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.2%
- Flights/day
- 4.4
- last 12 months
- Duration
- 2h 28m
- scheduled
- Distance
- 957 mi
Monthly on-time trend
Best time to fly from OAK to DEN
Aim for departures around 7 a.m. (96% on-time); avoid 2 p.m. departures (52%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 14 min |
| Tuesday | 79% | 12 min |
| Wednesday | 80% | 10 min |
| Thursday | 76% | 13 min |
| Friday | 74% | 15 min |
| Saturdaybest | 81% | 8 min |
| Sunday | 76% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations31%
- National airspace system26%
- Weather5%
Frequently asked questions
- How often are flights from OAK to DEN delayed?
- 23% of OAK–DEN flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 12 minutes.
- What is the best time of day to fly from OAK to DEN?
- Departures around 7 a.m. have the best record (96% on-time), while departures around 2 p.m. have the worst (52%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from OAK to DEN?
- The scheduled OAK–DEN flight time averages 2h 28m over 957 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are OAK to DEN flights cancelled?
- 0.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from OAK to DEN?
- June 2026 was the roughest month in this dataset, with only 62% of arrivals on time. The best was November 2024 at 93%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 3,518 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.