CID to DEN flight delays & on-time performance
Nonstop flights from The Eastern Iowa Airport to Denver International Airport · 692 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at CID or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Cedar Rapids/Iowa City (CID) to Denver (DEN) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.1% were cancelled, and 8% arrived an hour or more late.
- Frontier Airlines was the most punctual airline here (81% on time); SkyWest Airlines was the least (76%).
- Departures scheduled around 5am did best (94% on time); around 6pm did worst (67%).
- Tuesday was the most reliable day to fly (85% on time) and Monday the least (74%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).
Which airline is most on time from CID to DEN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Frontier Airlines | 81% | 1.2% | 14 min | 9.7% | 167 |
| United Airlines | 79% | 1.2% | 22 min | 8.1% | 726 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 76% | 0.4% | 22 min | 7.7% | 234 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am94%71 flights
- 8am81%253 flights
- 9am83%112 flights
- 1pm87%23 flights
- 2pm94%16 flights
- 3pm76%237 flights
- 4pm80%149 flights
- 5pm74%19 flights
- 6pm67%143 flights
- 7pm80%26 flights
- 8pm78%78 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday74%1.7% cancelled
- Tuesday85%0.0% cancelled
- Wednesday77%0.7% cancelled
- Thursday78%1.1% cancelled
- Friday81%0.0% cancelled
- Saturday77%3.1% cancelled
- Sunday82%1.1% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)41%
- Late-arriving aircraft27%
- Air traffic control & airport congestion21%
- Extreme weather11%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)50%
- Extreme weather42%
- Air traffic control & airport congestion8%
- Security0%
CID to DEN: common questions
- How often are CID to DEN flights on time?
- 79% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Cedar Rapids/Iowa City to Denver cancelled?
- 1.1% of scheduled flights were cancelled (12 of 1,127).
- How long are typical delays?
- Across all flights the average arrival delay was 21 min (early arrivals count as zero). Flights that were late arrived 96 min behind schedule on average, and 8.3% of flights were an hour or more late.
- How long is taxi time at CID?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to CID — 80% on time
More flights from Cedar Rapids/Iowa City
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: CID → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.