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1,361 km · Domestic

Aspen-Pitkin County Airport (Sardy Field) (ASE) – San Francisco (SFO)

In July 2026, 79 flights operated between Aspen-Pitkin County Airport (Sardy Field) and San Francisco (both directions), and 43.0% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods16 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January121116▼ 4.1%
February120132▲ 10.0%
March156117▼ 25.0%
April3021▼ 30.0%
May–21–
June6360▼ 4.8%
July7579▲ 5.3%
August74––
September48––
October––in progress
November–––
December56––

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods16 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January72.7%78.4%▲ 7.8%
February71.7%61.4%▼ 14.4%
March66.0%78.6%▲ 19.1%
April83.3%61.9%▼ 25.7%
May–52.4%–
June77.8%36.7%▼ 52.8%
July68.0%43.0%▼ 36.8%
August73.0%––
September100.0%––
October––in progress
November–––
December41.1%––

Cancelled flights by month

The most recent periods16 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January38▲ 166.7%
February1512▼ 20.0%
March146▼ 57.1%
April23▲ 50.0%
May–0–
June00–
July30▼ 100.0%
August0––
September0––
October––in progress
November–––
December1––

By direction

ASE → SFO

Scheduled flights
708
Flights operated
659
Cancelled
49 · 6.9%
On-time departures
63.4%

SFO → ASE

Scheduled flights
713
Flights operated
691
Cancelled
22 · 3.1%
On-time departures
69.6%

ASE → SFO and SFO → ASE counted separately.

Airlines on this route

Dec 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 1,421 100.0% 66.6% 71

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Dec 12, 2024 → Jul 31, 2026

Lowest average delay09:00–10:0031.0min · 209 recorded · 203 measured
Gap to highest-delay hour11.9min09:00 ↔ 16:00
Recorded flights1,421ASE–SFO

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 181 recorded · 180 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 125 recorded · 122 measured · Source: the US BTS 09:00 · 56.2% · 209 recorded · 203 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 54 recorded · 52 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 106 recorded · 100 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 54 recorded · 49 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 16 recorded · 15 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 33 recorded · 26 measured · Source: the US BTS 16:00 · 67.8% · 339 recorded · 329 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 184 recorded · 161 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 119 recorded · 112 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 181 recorded · 180 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 125 recorded · 122 measured · Source: the US BTS 09:00 · 31.0 min · 209 recorded · 203 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 54 recorded · 52 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 106 recorded · 100 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 54 recorded · 49 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 16 recorded · 15 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 33 recorded · 26 measured · Source: the US BTS 16:00 · 42.9 min · 339 recorded · 329 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 184 recorded · 161 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 119 recorded · 112 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 181 · 181 recorded · 180 measured · Source: the US BTS 08:00 · 125 · 125 recorded · 122 measured · Source: the US BTS 09:00 · 209 · 209 recorded · 203 measured · Source: the US BTS 10:00 · 54 · 54 recorded · 52 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 106 · 106 recorded · 100 measured · Source: the US BTS 13:00 · 54 · 54 recorded · 49 measured · Source: the US BTS 14:00 · 16 · 16 recorded · 15 measured · Source: the US BTS 15:00 · 33 · 33 recorded · 26 measured · Source: the US BTS 16:00 · 339 · 339 recorded · 329 measured · Source: the US BTS 17:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 18:00 · 184 · 184 recorded · 161 measured · Source: the US BTS 19:00 · 119 · 119 recorded · 112 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00No observations———
06:00No observations———
07:00Fewer than 200 measured departures—180181
08:00Fewer than 200 measured departures—122125
09:0056.2%31.0 min203209
10:00Fewer than 200 measured departures—5254
11:00No observations———
12:00Fewer than 200 measured departures—100106
13:00Fewer than 200 measured departures—4954
14:00Fewer than 200 measured departures—1516
15:00Fewer than 200 measured departures—2633
16:0067.8%42.9 min329339
17:00Fewer than 200 measured departures—11
18:00Fewer than 200 measured departures—161184
19:00Fewer than 200 measured departures—112119
20:00No observations———
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · Fewer than 200 measured departures · 196 recorded · 188 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 172 recorded · 163 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 180 recorded · 175 measured · Source: the US BTS Thursday · Fewer than 200 measured departures · 205 recorded · 198 measured · Source: the US BTS Friday · Fewer than 200 measured departures · 213 recorded · 199 measured · Source: the US BTS Saturday · 65.7% · 232 recorded · 213 measured · Source: the US BTS Sunday · 61.2% · 223 recorded · 214 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · Fewer than 200 measured departures · 196 recorded · 188 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 172 recorded · 163 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 180 recorded · 175 measured · Source: the US BTS Thursday · Fewer than 200 measured departures · 205 recorded · 198 measured · Source: the US BTS Friday · Fewer than 200 measured departures · 213 recorded · 199 measured · Source: the US BTS Saturday · 36.9 min · 232 recorded · 213 measured · Source: the US BTS Sunday · 37.8 min · 223 recorded · 214 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 196 · 196 recorded · 188 measured · Source: the US BTS Tuesday · 172 · 172 recorded · 163 measured · Source: the US BTS Wednesday · 180 · 180 recorded · 175 measured · Source: the US BTS Thursday · 205 · 205 recorded · 198 measured · Source: the US BTS Friday · 213 · 213 recorded · 199 measured · Source: the US BTS Saturday · 232 · 232 recorded · 213 measured · Source: the US BTS Sunday · 223 · 223 recorded · 214 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—188196
TuesdayFewer than 200 measured departures—163172
WednesdayFewer than 200 measured departures—175180
ThursdayFewer than 200 measured departures—198205
FridayFewer than 200 measured departures—199213
Saturday65.7%36.9 min213232
Sunday61.2%37.8 min214223

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · 75.5% · 248 recorded · 237 measured · Source: the US BTS Feb · 66.3% · 279 recorded · 252 measured · Source: the US BTS Mar · 71.4% · 293 recorded · 273 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 56 recorded · 51 measured · Source: the US BTS May · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 123 recorded · 123 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 157 recorded · 154 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 74 recorded · 74 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 48 recorded · 48 measured · Source: the US BTS Oct · No observations · 0 recorded · 0 measured · Source: the US BTS Nov · No observations · 0 recorded · 0 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 122 recorded · 117 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 24.9 min · 248 recorded · 237 measured · Source: the US BTS Feb · 34.7 min · 279 recorded · 252 measured · Source: the US BTS Mar · 24.1 min · 293 recorded · 273 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 56 recorded · 51 measured · Source: the US BTS May · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 123 recorded · 123 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 157 recorded · 154 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 74 recorded · 74 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 48 recorded · 48 measured · Source: the US BTS Oct · No observations · 0 recorded · 0 measured · Source: the US BTS Nov · No observations · 0 recorded · 0 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 122 recorded · 117 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 248 · 248 recorded · 237 measured · Source: the US BTS Feb · 279 · 279 recorded · 252 measured · Source: the US BTS Mar · 293 · 293 recorded · 273 measured · Source: the US BTS Apr · 56 · 56 recorded · 51 measured · Source: the US BTS May · 21 · 21 recorded · 21 measured · Source: the US BTS Jun · 123 · 123 recorded · 123 measured · Source: the US BTS Jul · 157 · 157 recorded · 154 measured · Source: the US BTS Aug · 74 · 74 recorded · 74 measured · Source: the US BTS Sep · 48 · 48 recorded · 48 measured · Source: the US BTS Oct · No observations · 0 recorded · 0 measured · Source: the US BTS Nov · No observations · 0 recorded · 0 measured · Source: the US BTS Dec · 122 · 122 recorded · 117 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan75.5%24.9 min237248
Feb66.3%34.7 min252279
Mar71.4%24.1 min273293
AprFewer than 200 measured departures—5156
MayFewer than 200 measured departures—2121
JunFewer than 200 measured departures—123123
JulFewer than 200 measured departures—154157
AugFewer than 200 measured departures—7474
SepFewer than 200 measured departures—4848
OctNo observations———
NovNo observations———
DecFewer than 200 measured departures—117122

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 63.3% 899
  • Delayed >15 min 31.7% 451
  • Cancelled 5.0% 71
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

14
14 of 14
Flight numbersBy direction DeparturesOn time
OO5745 ASE → SFO 252 52.7%
OO5330 SFO → ASE 172 60.7%
OO5496 SFO → ASE 171 78.0%
OO5855 ASE → SFO 115 78.1%
OO5977 ASE → SFO 115 63.5%
OO5711 SFO → ASE 113 50.9%
OO5480 ASE → SFO 57 70.0%
OO6028 SFO → ASE 54 60.8%
OO4657 ASE → SFO 53 80.0%
OO5829 SFO → ASE 53 84.8%
OO5862 SFO → ASE 51 83.0%
OO5258 ASE → SFO 49 70.5%
OO4651 ASE → SFO 33 65.4%
OO5784 SFO → ASE 33 87.9%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 79 +5.3% 0 43.0%
June 2026 60 −4.8% 0 36.7%
May 2026 21 0 52.4%
April 2026 21 −30.0% 3 61.9%
March 2026 117 −25.0% 6 78.6%
February 2026 132 +10.0% 12 61.4%
January 2026 116 −4.1% 8 78.4%
December 2025 56 −8.2% 1 41.1%
September 2025 48 0 100.0%
August 2025 74 0 73.0%
July 2025 75 3 68.0%
June 2025 63 0 77.8%
April 2025 30 2 83.3%
March 2025 156 14 66.0%
February 2025 120 15 71.7%
January 2025 121 3 72.7%
December 2024 61 4 45.9%

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