Route Reliability
Chicago → Aspen
ORD–ASE · 1,013 miles · Chicago O'Hare International Airport to Aspen/Pitkin County Airport
- 62%
- Arrive within 15 minutes
- 33 min
- Average arrival delay
- 2.6%
- Cancelled
- 1,042
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines69%654 flights
- 2.American Airlines50%388 flights
What the data says
The late departure is the smart one here.
ORD–ASE flights departing between 6–9 PM arrived on time 75% of the time, versus 50% between 12–3 PM.
Friday is doing you no favors.
ORD–ASE flights arrived on time 73% of the time on Wednesdays and just 49% on Fridays. That gap is worth planning around.
United Airlines has a clear lead on this route.
United Airlines arrived on time 69% of the time on this route; American Airlines managed 50%.
Trending in the right direction.
ORD–ASE flights arrived on time 73% of the time over the last three months in the data, compared with 49% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon64%(141 flights)
- Tue70%(122 flights)
- Wed73%(118 flights)
- Thu66%(148 flights)
- Fri49%(133 flights)
- Sat55%(151 flights)
- Sun60%(142 flights)
- 6–9 AM67%(132 flights)
- 9 AM–12 PM59%(426 flights)
- 12–3 PM50%(137 flights)
- 3–6 PM64%(115 flights)
- 6–9 PM75%(145 flights)
Jun 55% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 55% | 47 |
| July 2025 | 62% | 50 |
| August 2025 | 76% | 67 |
| September 2025 | 83% | 90 |
| October 2025 | 71% | 52 |
| December 2025 | 46% | 108 |
| January 2026 | 51% | 132 |
| February 2026 | 50% | 147 |
| March 2026 | 68% | 186 |
| April 2026 | 64% | 55 |
| May 2026 | 86% | 21 |
Keep nerding
Based on 1,042 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.