FlightRecord

Aspen-Pitkin County Airport (Sardy Field) (ASE): Delays & On-Time Performance

Data through May 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 70% against a national 78%, over roughly 22 departures a day to 10 destinations.

Departures on-time
70%
left <15 min late
Avg dep delay
32 min
Arrivals on-time
69%
Cancelled
6.1%
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
Tuesday
77% on-time
Nearest alternative
EGE — Eagle
29 miles away
Cancellation risk
6.1%
above the US average
Check routes from ASE ↓Compare nearby airports ↓

Monthly on-time trend

Monthly departure on-time percentage at ASE50%75%100%June 2024: 76% on-time (696 flights)76Jun 2024July 2024: 78% on-time (711 flights)78August 2024: 72% on-time (648 flights)72September 2024: 75% on-time (549 flights)75Sep 2024October 2024: 85% on-time (498 flights)85November 2024: 77% on-time (410 flights)77December 2024: 62% on-time (765 flights)62Dec 2024January 2025: 64% on-time (1,025 flights)64February 2025: 61% on-time (930 flights)61March 2025: 62% on-time (1,081 flights)62Mar 2025April 2025: 71% on-time (502 flights)71May 2025: 78% on-time (55 flights)78June 2025: 57% on-time (596 flights)57Jun 2025July 2025: 62% on-time (709 flights)62August 2025: 66% on-time (659 flights)66September 2025: 85% on-time (550 flights)85Sep 2025October 2025: 78% on-time (447 flights)78November 2025: 89% on-time (328 flights)89December 2025: 61% on-time (803 flights)61Dec 2025January 2026: 68% on-time (1,037 flights)68February 2026: 62% on-time (1,012 flights)62March 2026: 74% on-time (1,188 flights)74Mar 2026April 2026: 79% on-time (481 flights)79May 2026: 87% on-time (182 flights)87

Best time of day to depart from ASE

On-time percentage by scheduled departure hour at ASE7 a.m.: 80% on-time (1,949 flights)78 a.m.: 77% on-time (740 flights)89 a.m.: 77% on-time (1,063 flights)910 a.m.: 77% on-time (1,143 flights)1011 a.m.: 70% on-time (1,221 flights)1112 p.m.: 66% on-time (2,517 flights)121 p.m.: 64% on-time (2,162 flights)132 p.m.: 63% on-time (1,212 flights)143 p.m.: 61% on-time (1,244 flights)154 p.m.: 59% on-time (874 flights)165 p.m.: 79% on-time (367 flights)176 p.m.: 71% on-time (766 flights)187 p.m.: 64% on-time (384 flights)198 p.m.: 87% on-time (220 flights)20scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday66%35 min
Tuesdaybest77%21 min
Wednesday77%19 min
Thursday70%30 min
Friday66%35 min
Saturday64%44 min
Sunday64%36 min

Next: compare the busiest routes from ASE ↓

Busiest routes from ASE

RouteFlights/12moOn-timeAvg delay
ASE → DEN (Denver)2,71574%24 min
ASE → LAX (Los Angeles)1,27272%33 min
ASE → DFW (Dallas/Fort Worth)1,20366%36 min
ASE → ORD (Chicago)1,04062%39 min
ASE → IAH (Houston)60067%34 min
ASE → ATL (Atlanta)44863%42 min
ASE → SFO (San Francisco)37670%31 min
ASE → AUS (Austin)18057%44 min
ASE → PHX (Phoenix)11062%35 min

Where flights into ASE come from

RouteFlights/12moOn-timeAvg delay
DEN (Denver) → ASE2,71774%24 min
LAX (Los Angeles) → ASE1,27071%28 min
DFW (Dallas/Fort Worth) → ASE1,20568%21 min
ORD (Chicago) → ASE1,04257%36 min
IAH (Houston) → ASE59869%29 min
ATL (Atlanta) → ASE44966%26 min
SFO (San Francisco) → ASE38067%38 min
AUS (Austin) → ASE18066%28 min

Most reliable routes

  1. ASE → DEN74%
  2. ASE → LAX72%
  3. ASE → SFO70%
  4. ASE → IAH67%
  5. ASE → DFW66%

Most delay-prone routes

  1. ASE → AUS57%
  2. ASE → ORD62%
  3. ASE → PHX62%
  4. ASE → ATL63%
  5. ASE → DFW66%

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 aircraft20%
  • Airline operations27%
  • National airspace system22%
  • Weather30%

Alternative airports near Aspen

Other airports within 120 miles, compared on departure reliability.

AirportDistanceOn-time departuresAvg delay
EGE — Eagle County Regional Airport29 mi72%26 min
GUC — Gunnison Crested Butte Regional Airport48 mi83%21 min
MTJ — Montrose Regional Airport74 mi78%22 min
HDN — Yampa Valley Airport89 mi73%24 min
GJT — Grand Junction Regional Airport89 mi84%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?
30% of departures from Aspen-Pitkin County Airport (Sardy Field) left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 32 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?
6.1% 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 15,862 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.