Denver (DEN) to Cedar Rapids/Iowa City (CID): On-Time Performance
Data through July 2026
Denver (DEN) to Cedar Rapids/Iowa City (CID) effectively runs on two schedules. In November 2025, 90% of arrivals were on time; in July 2025 that fell to 64% — a 26-point seasonal swing. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 72%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 3.1
- last 12 months
- Duration
- 1h 58m
- scheduled
- Distance
- 692 mi
Best airline from DEN to CID
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 83% | 13 min | 0.7% | 421 |
| Frontier Airlines | 81% | 13 min | 1.5% | 398 |
| United Airlines | 77% | 19 min | 0.6% | 1,537 |
Monthly on-time trend
Best time to fly from DEN to CID
Aim for departures around 9 p.m. (94% on-time); avoid 3 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 20 min |
| Tuesdaybest | 83% | 13 min |
| Wednesday | 81% | 13 min |
| Thursday | 77% | 15 min |
| Friday | 76% | 18 min |
| Saturday | 79% | 15 min |
| Sunday | 78% | 21 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft47%
- Airline operations33%
- National airspace system15%
- Weather5%
Frequently asked questions
- How often are flights from DEN to CID delayed?
- 21% of DEN–CID 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 17 minutes.
- Which airline is most reliable from DEN to CID?
- SkyWest Airlines has the best on-time record on this route at 83%, based on 421 flights. 3 airlines flew DEN–CID frequently enough to compare in this period.
- What is the best time of day to fly from DEN to CID?
- Departures around 9 p.m. have the best record (94% on-time), while departures around 3 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DEN to CID?
- The scheduled DEN–CID flight time averages 1h 58m over 692 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are DEN to CID 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 DEN to CID?
- July 2025 was the roughest month in this dataset, with only 64% of arrivals on time. The best was November 2025 at 90%. If your dates are flexible, that 26-point gap is worth planning around.
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Based on 2,356 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.