ATW to DEN flight delays & on-time performance
Nonstop flights from Appleton International Airport to Denver International Airport · 883 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATW or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Appleton (ATW) to Denver (DEN) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1% were cancelled, and 7% arrived an hour or more late.
- United Airlines was the most punctual airline here (89% on time); Allegiant Air was the least (74%).
- Departures scheduled around 8am did best (83% on time); around 4pm did worst (71%).
- Saturday was the most reliable day to fly (86% on time) and Wednesday the least (75%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (60%).
Which airline is most on time from ATW 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 |
|---|---|---|---|---|---|
| United Airlines | 89% | 0.0% | 7 min | 1.4% | 71 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 81% | 1.4% | 17 min | 6.6% | 293 |
| Allegiant Air | 74% | 0.0% | 22 min | 17.0% | 47 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am83%364 flights
- 3pm67%12 flights
- 4pm71%21 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday84%1.6% cancelled
- Tuesday81%1.9% cancelled
- Wednesday75%0.0% cancelled
- Thursday81%0.0% cancelled
- Friday83%0.0% cancelled
- Saturday86%1.9% cancelled
- Sunday81%1.5% 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)60%
- Air traffic control & airport congestion21%
- Extreme weather15%
- Late-arriving aircraft4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
ATW to DEN: common questions
- How often are ATW to DEN flights on time?
- 82% 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 Appleton to Denver cancelled?
- 1.0% of scheduled flights were cancelled (4 of 411).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 81 min behind schedule on average, and 6.9% of flights were an hour or more late.
- How long is taxi time at ATW?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to ATW — 70% on time
More flights from Appleton
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ATW → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.