Denver (DEN) to Riverton/Lander (RIW): On-Time Performance
Data through July 2026
When you fly DEN to RIW matters as much as anything else about the booking: the route swung from 93% on-time in November 2025 to just 68% in June 2025. Across the full period the route averages 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 2.0
- last 12 months
- Duration
- 1h 18m
- scheduled
- Distance
- 296 mi
Monthly on-time trend
Best time to fly from DEN to RIW
Aim for departures around 12 p.m. (84% on-time); avoid 8 p.m. departures (74%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 23 min |
| Tuesday | 80% | 15 min |
| Wednesday | 81% | 22 min |
| Thursday | 79% | 19 min |
| Friday | 73% | 27 min |
| Saturdaybest | 85% | 17 min |
| Sunday | 82% | 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 operations46%
- National airspace system11%
- Weather6%
Frequently asked questions
- How often are flights from DEN to RIW delayed?
- 20% of DEN–RIW 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 19 minutes.
- What is the best time of day to fly from DEN to RIW?
- Departures around 12 p.m. have the best record (84% on-time), while departures around 8 p.m. have the worst (74%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to RIW?
- The scheduled DEN–RIW flight time averages 1h 18m over 296 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are DEN to RIW flights cancelled?
- 0.7% 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 DEN to RIW?
- June 2025 was the roughest month in this dataset, with only 68% of arrivals on time. The best was November 2025 at 93%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 1,519 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.