Oklahoma City (OKC) to Denver (DEN): On-Time Performance
Data through July 2026
When you fly OKC to DEN matters as much as anything else about the booking: the route swung from 90% on-time in November 2025 to just 61% in June 2025. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (84% vs 67%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 8.6
- last 12 months
- Duration
- 1h 50m
- scheduled
- Distance
- 495 mi
Best airline from OKC to DEN
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 78% | 18 min | 0.9% | 2,996 |
| Southwest Airlines | 78% | 14 min | 0.7% | 2,556 |
| Frontier Airlines | 76% | 18 min | 1.0% | 707 |
| United Airlines | 74% | 13 min | 0.8% | 362 |
Monthly on-time trend
Best time to fly from OKC to DEN
Aim for departures around 5 a.m. (98% on-time); avoid 4 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 16 min |
| Tuesdaybest | 80% | 16 min |
| Wednesday | 79% | 16 min |
| Thursday | 78% | 15 min |
| Friday | 76% | 16 min |
| Saturday | 77% | 17 min |
| Sunday | 77% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft28%
- Airline operations35%
- National airspace system31%
- Weather6%
Frequently asked questions
- How often are flights from OKC to DEN delayed?
- 23% of OKC–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 16 minutes.
- Which airline is most reliable from OKC to DEN?
- SkyWest Airlines has the best on-time record on this route at 78%, based on 2,996 flights. 4 airlines flew OKC–DEN frequently enough to compare in this period.
- What is the best time of day to fly from OKC to DEN?
- Departures around 5 a.m. have the best record (98% on-time), while departures around 4 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from OKC to DEN?
- The scheduled OKC–DEN flight time averages 1h 50m over 495 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are OKC to DEN flights cancelled?
- 0.8% 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 OKC to DEN?
- June 2025 was the roughest month in this dataset, with only 61% of arrivals on time. The best was November 2025 at 90%. If your dates are flexible, that 29-point gap is worth planning around.
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Based on 6,621 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.