Aspen-Pitkin County Airport (Sardy Field) (ASE): Delays & On-Time Performance
Data through July 2026
Aspen-Pitkin County Airport (Sardy Field) (ASE) is a tale of two seasons: departures ran 89% on-time in November 2025 but sank to 57% in June 2025. Across the year it averages 69% against a national 78%, over roughly 22 departures a day to 10 destinations.
- Departures on-time
- 69%
- left <15 min late
- Avg dep delay
- 33 min
- Arrivals on-time
- 68%
- Cancelled
- 5.9%
- Destinations
- 10
- nonstop
- Airlines
- 1
Plan your departure from ASE
The choices most likely to improve your odds, based on this airport’s historical record.
- Best departure time
- Around 8 p.m.
- 87% on-time
- Best day to fly
- Wednesday
- 76% on-time
- Cancellation risk
- 5.9%
- above the US average
Monthly on-time trend
Best time of day to depart from ASE
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 66% | 36 min |
| Tuesday | 75% | 23 min |
| Wednesdaybest | 76% | 20 min |
| Thursday | 70% | 30 min |
| Friday | 66% | 34 min |
| Saturday | 64% | 47 min |
| Sunday | 63% | 38 min |
Busiest routes from ASE
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| ASE → DEN (Denver) | 2,725 | 74% | 26 min |
| ASE → LAX (Los Angeles) | 1,235 | 71% | 35 min |
| ASE → DFW (Dallas/Fort Worth) | 1,185 | 66% | 36 min |
| ASE → ORD (Chicago) | 1,133 | 62% | 40 min |
| ASE → IAH (Houston) | 626 | 67% | 33 min |
| ASE → ATL (Atlanta) | 450 | 64% | 41 min |
| ASE → SFO (San Francisco) | 376 | 65% | 34 min |
| ASE → AUS (Austin) | 184 | 55% | 44 min |
| ASE → PHX (Phoenix) | 110 | 62% | 35 min |
Where flights into ASE come from
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| DEN (Denver) → ASE | 2,724 | 73% | 27 min |
| LAX (Los Angeles) → ASE | 1,234 | 70% | 29 min |
| DFW (Dallas/Fort Worth) → ASE | 1,187 | 67% | 22 min |
| ORD (Chicago) → ASE | 1,134 | 57% | 37 min |
| IAH (Houston) → ASE | 624 | 68% | 29 min |
| ATL (Atlanta) → ASE | 450 | 66% | 25 min |
| SFO (San Francisco) → ASE | 378 | 66% | 38 min |
| AUS (Austin) → ASE | 184 | 65% | 27 min |
What causes delays at ASE
Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing ASE.
- Late-arriving aircraft22%
- Airline operations26%
- National airspace system22%
- Weather31%
Alternative airports near Aspen
Other airports within 120 miles, compared on departure reliability.
| Airport | Distance | On-time departures | Avg delay |
|---|---|---|---|
| EGE — Eagle County Regional Airport | 29 mi | 72% | 27 min |
| GUC — Gunnison Crested Butte Regional Airport | 48 mi | 83% | 21 min |
| MTJ — Montrose Regional Airport | 74 mi | 78% | 23 min |
| HDN — Yampa Valley Airport | 89 mi | 73% | 24 min |
| GJT — Grand Junction Regional Airport | 89 mi | 84% | 16 min |
Compare the airport-level record first, then check the exact route you plan to book.
Frequently asked questions
- How often are flights delayed at ASE?
- 31% of departures from Aspen-Pitkin County Airport (Sardy Field) left 15+ minutes late between 2024-07 and 2026-07, with an average departure delay of 33 minutes. The national on-time average over the same period was 78%.
- What is the best time of day to depart from ASE?
- Flights scheduled around 8 p.m. depart on time 87% of the time at ASE, versus 59% around 4 p.m.. Booking before noon is the usual rule of thumb here.
- What is the worst month for delays at ASE?
- In this dataset, June 2025 was the weakest month at ASE, with 57% of departures on time.
- How often are flights cancelled at ASE?
- 5.9% of scheduled departures from ASE were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Related guides
Based on 16,551 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.