ATW to DEN flight delays
Appleton, WI (ATW) Denver, CO (DEN) · 883 miles
433 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
78.79%
Arrived on time
Within 15 minutes of schedule
0.92%
Cancelled
Share of scheduled flights
81 min
When late, late by
Average across delayed arrivals
18 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 81 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The season swings this route hard. In May it ran 23.7 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The two directions do not behave alike. DEN to ATW arrives on time 7.6 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Only SkyWest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over January 2025 – August 2026, SkyWest Airlines arrived on time most often on ATW to DEN. Flights ran closest to schedule in May and worst in July.
Every airline on ATW to DEN
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 341 | 78.34% | 1.17% | 85 min | C |
| Allegiant Air | 52 | 75% | 0% | 73 min | — |
| United Airlines | 40 | 87.5% | 0% | 53 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
DEN to ATW Denver back to Appleton 71.19% on time DOther routes from Appleton
Common questions
Are flights from Appleton to Denver usually delayed?
78.79% of flights on the ATW to DEN route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Appleton to Denver?
Only SkyWest Airlines appears in the published record on this route, with 341 flights and 78.34% arriving on time.
How often are ATW to DEN flights cancelled?
0.92% of scheduled flights did not operate — about 9 in every thousand. That is in the normal range.
What is the best month to fly Appleton to Denver?
May, when 88.2% of flights arrived on time. The worst was July at 64.5%.
When ATW to DEN flights are late, how late are they?
About 81 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on ATW to DEN during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →