Denver (DEN) to Oklahoma City (OKC): On-Time Performance
Data through May 2026
When you fly DEN to OKC matters as much as anything else about the booking: the route swung from 88% on-time in October 2024 to just 64% in July 2025. Across the full period the route averages 76% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 68%), which matters most in the rough months.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 8.7
- last 12 months
- Duration
- 1h 41m
- scheduled
- Distance
- 495 mi
Best airline from DEN to OKC
4 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 82% | 11 min | 0.8% | 263 |
| SkyWest Airlines | 79% | 16 min | 0.6% | 2,929 |
| Frontier Airlines | 75% | 16 min | 0.9% | 673 |
| Southwest Airlines | 73% | 17 min | 0.6% | 2,421 |
Monthly on-time trend
Best time to fly from DEN to OKC
Aim for departures around 7 a.m. (89% on-time); avoid 10 p.m. departures (56%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 15 min |
| Tuesdaybest | 80% | 14 min |
| Wednesday | 78% | 13 min |
| Thursday | 76% | 15 min |
| Friday | 74% | 18 min |
| Saturday | 78% | 19 min |
| Sunday | 75% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft43%
- Airline operations34%
- National airspace system17%
- Weather6%
Frequently asked questions
- How often are flights from DEN to OKC delayed?
- 24% of DEN–OKC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 16 minutes.
- Which airline is most reliable from DEN to OKC?
- United Airlines has the best on-time record on this route at 82%, based on 263 flights. 4 airlines flew DEN–OKC frequently enough to compare in this period.
- What is the best time of day to fly from DEN to OKC?
- Departures around 7 a.m. have the best record (89% on-time), while departures around 10 p.m. have the worst (56%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to OKC?
- The scheduled DEN–OKC flight time averages 1h 41m over 495 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are DEN to OKC flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to OKC?
- July 2025 was the roughest month in this dataset, with only 64% of arrivals on time. The best was October 2024 at 88%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 6,286 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.