Route reliability record
ASE→DFW
Aspen to Dallas-Fort Worth
- Flights
- 1,185
- Period
- September 2025 to August 2026
- Distance
- 701 mi
- Carriers
- 1
This route carries a cancellation problem, not just a delay problem: 7.0% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,185 ASE to DFW flights, with a median arrival 7 minutes early.
Best time to fly ASE to DFW: a 5pm–8pm departure, ideally on a Wednesday. Flights in that window arrived on time 82.4% of the time and Wednesday flights 82.0%, against 68.3% for the route overall.
The national on-time rate over the same period is 77.3%, so this route runs 9 points behind the country as a whole. Across a thousand flights that is about 90 extra late arrivals.
Key figures
On time
68.3%
Arrivals under 15 minutes late, of 1,093 completed flights
Avg delay
97 min
Across delayed arrivals only, not all flights
Cancelled
7.00%
National rate is 1.89%
Best carrier
SkyWest
68.3% on time across 1,185 flights
These figures cover 1,185 flights between September 2025 and August 2026. Beyond the headline rate, 15.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Which airline is most reliable on ASE to DFW
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 1,185 | 68.3% | 97 min | 7.00% | C− |
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Best ways to make this trip
The most reliable ways to fly Aspen to Dallas-Fort Worth
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 1 of the top 2 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. EGE → DFWEagle to Dallas-Fort Worth | American Airlines | 66.5% | 68.2% | 2.51% | 5am–8am, Wed | — |
| 2. ASE → DFWAspen to Dallas-Fort Worth | SkyWest Airlines | 63.5% | 68.3% | 7.00% | 5pm–8pm, Wed | — |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 26 points, against half a point between the best and worst carrier.
- 5am–8am256 flights80.9%
- 8am–11am204 flights69.1%
- 11am–2pm390 flights66.8%
- 2pm–5pm297 flights56.4%
- 5pm–8pm38 flights82.4%
- 8pm–5am—
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is the strongest at 82.4% on time. The full set of windows spans 26 points.
Explore
Filter ASE to DFW by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On ASE to DFW, the best departure window is 5pm–8pm at 82.4% on time and the worst is 2pm–5pm at 56.4%, a wide gap of 26.0 points. All US flights leaving 5pm–8pm ran 68.0%.
- 5–8am80.9%
- 8–11am69.1%
- 11am–2pm66.8%
- 2–5pm56.4%
- 5–8pm82.4%
- 8pm–5am—
best all US flightsScale 50% to 95%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 28 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
January is the weak month at 56.0% on time, against 83.9% in November. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. January was the busiest month here, with 160 flights.
Across the week, Wednesday is the strongest day at 82.0% on time and Saturday the weakest at 57.3%, a spread of 25 points.
Delay causes
Why this route gets delayed
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 34,000 reported delay minutes.
- 36%Extreme weather
- 31%Carrier
- 19%Late-arriving aircraft
- 13%National Airspace System
- 1%Security
Extreme weather accounts for 36% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 6.0 times the usual weather exposure. The split is drawn from 33,698 reported delay minutes.
Cancellations run at 7.00%, against 1.89% nationally. That is about one flight in fifteen cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here actually costs
15.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 701 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg runs 68.4% on time across 1,187 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,185 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in DFW after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 7.00% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5pm–8pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,093 completed flights over 12 months sit behind that.
Common questions
ASE to DFW questions
How often is ASE to DFW delayed?
About one flight in three arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 31.7% of the 1,185 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
How reliable is ASE to DFW compared with the rest of the country?
68.3% of flights arrive on time here against a national 77.3%, a difference of 9 points against it. That is worth a C− on this site's grading scale.
What time of day has the fewest delays on ASE to DFW?
The 5pm–8pm departure window is the strongest at 82.4% on time. The 2pm–5pm window is the weakest at 56.4%, 26 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are January delays on ASE to DFW?
January is the weakest month at 56.0% on time, compared with 83.9% in November. Across the year that is 28 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- DFW to ASE — the return legseparate record
- Dallas/Fort Worth International (DFW) delay statistics
- ASE to DEN, a related route76.7%
- ORD to DFW, a related route70.4%
- ASE to LAX, a related route73.9%
- SkyWest Airlines on-time record68.3%
- Flying to ski country: which routes into the mountains run on time
- The US routes with the most cancellations
Direction matters. ASE to DFW and DFW to ASE are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.