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1,627 km · Domestic

Aspen-Pitkin County Airport (Sardy Field) (ASE) – Chicago O'Hare (ORD)

In July 2026, 239 flights operated between Aspen-Pitkin County Airport (Sardy Field) and Chicago O'Hare (both directions), and 76.2% 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 periods18 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January280273▼ 2.5%
February247298▲ 20.6%
March333380▲ 14.1%
April98116▲ 18.4%
May841▲ 412.5%
June107158▲ 47.7%
July114239▲ 109.6%
August146––
September180––
October111–in progress
November–––
December225––
Year to date (Jan–Jul)1,1871,505▲ 26.8%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods18 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January64.6%55.3%▼ 14.4%
February54.7%56.4%▲ 3.1%
March56.5%70.8%▲ 25.3%
April71.4%70.7%▼ 1.0%
May87.5%95.1%▲ 8.7%
June49.5%67.7%▲ 36.8%
July60.5%76.2%▲ 26.0%
August70.5%––
September82.2%––
October75.7%–in progress
November–––
December50.2%––
Year-to-date average (Jan–Jul)63.5%70.3%▲ 10.7%

Cancelled flights by month

The most recent periods18 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January619▲ 216.7%
February1824▲ 33.3%
March1928▲ 47.4%
April72▼ 71.4%
May00–
June313▲ 333.3%
July109▼ 10.0%
August4––
September0––
October0–in progress
November–––
December1––
Year to date (Jan–Jul)6395▲ 50.8%

By direction

ASE → ORD

Scheduled flights
1,878
Flights operated
1,758
Cancelled
120 · 6.4%
On-time departures
62.6%

ORD → ASE

Scheduled flights
1,879
Flights operated
1,824
Cancelled
55 · 2.9%
On-time departures
65.2%

ASE → ORD and ORD → ASE counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 3,757 100.0% 63.9% 175

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 · Oct 12, 2024 → Jul 31, 2026

Lowest average delay07:00–08:0022.4min · 247 recorded · 239 measured
Gap to highest-delay hour45.4min07:00 ↔ 13:00
Recorded flights3,757ASE–ORD

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 · 79.1% · 247 recorded · 239 measured · Source: the US BTS 08:00 · 70.3% · 312 recorded · 306 measured · Source: the US BTS 09:00 · 73.3% · 763 recorded · 752 measured · Source: the US BTS 10:00 · 48.3% · 220 recorded · 211 measured · Source: the US BTS 11:00 · 59.1% · 269 recorded · 257 measured · Source: the US BTS 12:00 · 64.3% · 796 recorded · 750 measured · Source: the US BTS 13:00 · 38.7% · 270 recorded · 248 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 44 recorded · 38 measured · Source: the US BTS 15:00 · 58.7% · 260 recorded · 242 measured · Source: the US BTS 16:00 · 56.9% · 268 recorded · 246 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 68.6% · 301 recorded · 287 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 7 recorded · 6 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 · 22.4 min · 247 recorded · 239 measured · Source: the US BTS 08:00 · 29.3 min · 312 recorded · 306 measured · Source: the US BTS 09:00 · 24.1 min · 763 recorded · 752 measured · Source: the US BTS 10:00 · 43.7 min · 220 recorded · 211 measured · Source: the US BTS 11:00 · 37.9 min · 269 recorded · 257 measured · Source: the US BTS 12:00 · 34.9 min · 796 recorded · 750 measured · Source: the US BTS 13:00 · 67.8 min · 270 recorded · 248 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 44 recorded · 38 measured · Source: the US BTS 15:00 · 33.0 min · 260 recorded · 242 measured · Source: the US BTS 16:00 · 38.7 min · 268 recorded · 246 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 59.7 min · 301 recorded · 287 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 7 recorded · 6 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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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 · 247 · 247 recorded · 239 measured · Source: the US BTS 08:00 · 312 · 312 recorded · 306 measured · Source: the US BTS 09:00 · 763 · 763 recorded · 752 measured · Source: the US BTS 10:00 · 220 · 220 recorded · 211 measured · Source: the US BTS 11:00 · 269 · 269 recorded · 257 measured · Source: the US BTS 12:00 · 796 · 796 recorded · 750 measured · Source: the US BTS 13:00 · 270 · 270 recorded · 248 measured · Source: the US BTS 14:00 · 44 · 44 recorded · 38 measured · Source: the US BTS 15:00 · 260 · 260 recorded · 242 measured · Source: the US BTS 16:00 · 268 · 268 recorded · 246 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 301 · 301 recorded · 287 measured · Source: the US BTS 20:00 · 7 · 7 recorded · 6 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———
07:0079.1%22.4 min239247
08:0070.3%29.3 min306312
09:0073.3%24.1 min752763
10:0048.3%43.7 min211220
11:0059.1%37.9 min257269
12:0064.3%34.9 min750796
13:0038.7%67.8 min248270
14:00Fewer than 200 measured departures—3844
15:0058.7%33.0 min242260
16:0056.9%38.7 min246268
17:00No observations———
18:00No observations———
19:0068.6%59.7 min287301
20:00Fewer than 200 measured departures—67
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 · 66.5% · 545 recorded · 525 measured · Source: the US BTS Tuesday · 71.3% · 455 recorded · 432 measured · Source: the US BTS Wednesday · 69.6% · 488 recorded · 477 measured · Source: the US BTS Thursday · 65.8% · 567 recorded · 546 measured · Source: the US BTS Friday · 60.1% · 571 recorded · 529 measured · Source: the US BTS Saturday · 55.0% · 571 recorded · 540 measured · Source: the US BTS Sunday · 61.2% · 560 recorded · 533 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
Monday · 28.5 min · 545 recorded · 525 measured · Source: the US BTS Tuesday · 30.0 min · 455 recorded · 432 measured · Source: the US BTS Wednesday · 29.6 min · 488 recorded · 477 measured · Source: the US BTS Thursday · 29.4 min · 567 recorded · 546 measured · Source: the US BTS Friday · 43.1 min · 571 recorded · 529 measured · Source: the US BTS Saturday · 51.0 min · 571 recorded · 540 measured · Source: the US BTS Sunday · 42.8 min · 560 recorded · 533 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 545 · 545 recorded · 525 measured · Source: the US BTS Tuesday · 455 · 455 recorded · 432 measured · Source: the US BTS Wednesday · 488 · 488 recorded · 477 measured · Source: the US BTS Thursday · 567 · 567 recorded · 546 measured · Source: the US BTS Friday · 571 · 571 recorded · 529 measured · Source: the US BTS Saturday · 571 · 571 recorded · 540 measured · Source: the US BTS Sunday · 560 · 560 recorded · 533 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday66.5%28.5 min525545
Tuesday71.3%30.0 min432455
Wednesday69.6%29.6 min477488
Thursday65.8%29.4 min546567
Friday60.1%43.1 min529571
Saturday55.0%51.0 min540571
Sunday61.2%42.8 min533560

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 · 60.0% · 578 recorded · 553 measured · Source: the US BTS Feb · 55.6% · 587 recorded · 545 measured · Source: the US BTS Mar · 64.1% · 760 recorded · 713 measured · Source: the US BTS Apr · 71.0% · 223 recorded · 214 measured · Source: the US BTS May · Fewer than 200 measured departures · 49 recorded · 49 measured · Source: the US BTS Jun · 60.4% · 281 recorded · 265 measured · Source: the US BTS Jul · 71.1% · 372 recorded · 353 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 150 recorded · 146 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 170 recorded · 170 measured · Source: the US BTS Nov · No observations · 0 recorded · 0 measured · Source: the US BTS Dec · 52.0% · 407 recorded · 394 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 · 36.1 min · 578 recorded · 553 measured · Source: the US BTS Feb · 39.1 min · 587 recorded · 545 measured · Source: the US BTS Mar · 34.6 min · 760 recorded · 713 measured · Source: the US BTS Apr · 22.7 min · 223 recorded · 214 measured · Source: the US BTS May · Fewer than 200 measured departures · 49 recorded · 49 measured · Source: the US BTS Jun · 61.6 min · 281 recorded · 265 measured · Source: the US BTS Jul · 34.0 min · 372 recorded · 353 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 150 recorded · 146 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 170 recorded · 170 measured · Source: the US BTS Nov · No observations · 0 recorded · 0 measured · Source: the US BTS Dec · 57.8 min · 407 recorded · 394 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 578 · 578 recorded · 553 measured · Source: the US BTS Feb · 587 · 587 recorded · 545 measured · Source: the US BTS Mar · 760 · 760 recorded · 713 measured · Source: the US BTS Apr · 223 · 223 recorded · 214 measured · Source: the US BTS May · 49 · 49 recorded · 49 measured · Source: the US BTS Jun · 281 · 281 recorded · 265 measured · Source: the US BTS Jul · 372 · 372 recorded · 353 measured · Source: the US BTS Aug · 150 · 150 recorded · 146 measured · Source: the US BTS Sep · 180 · 180 recorded · 180 measured · Source: the US BTS Oct · 170 · 170 recorded · 170 measured · Source: the US BTS Nov · No observations · 0 recorded · 0 measured · Source: the US BTS Dec · 407 · 407 recorded · 394 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan60.0%36.1 min553578
Feb55.6%39.1 min545587
Mar64.1%34.6 min713760
Apr71.0%22.7 min214223
MayFewer than 200 measured departures—4949
Jun60.4%61.6 min265281
Jul71.1%34.0 min353372
AugFewer than 200 measured departures—146150
SepFewer than 200 measured departures—180180
OctFewer than 200 measured departures—170170
NovNo observations———
Dec52.0%57.8 min394407

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 60.9% 2,289
  • Delayed >15 min 34.4% 1,293
  • Cancelled 4.7% 175
  • 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

33
33 of 33
Flight numbersBy direction DeparturesOn time
OO4669 ASE → ORD 442 71.3%
OO5956 ASE → ORD 411 69.1%
OO5876 ORD → ASE 349 73.1%
OO6427 ORD → ASE 251 66.5%
OO4757 ORD → ASE 143 73.6%
OO5992 ORD → ASE 122 59.1%
OO5963 ASE → ORD 118 48.1%
OO6506 ORD → ASE 110 38.7%
OO5988 ORD → ASE 103 46.9%
OO5969 ASE → ORD 98 68.9%
OO6250 ORD → ASE 98 50.0%
OO6502 ASE → ORD 98 44.7%
OO6460 ASE → ORD 95 53.0%
OO4891 ASE → ORD 83 46.1%
OO6203 ASE → ORD 82 59.0%
OO5320 ORD → ASE 76 60.8%
OO5254 ORD → ASE 72 73.5%
OO6437 ASE → ORD 68 33.3%
OO5347 ASE → ORD 56 79.6%
OO6206 ASE → ORD 48 42.9%
OO6186 ORD → ASE 44 64.1%
OO6386 ASE → ORD 44 72.5%
OO6225 ASE → ORD 43 82.9%
OO6324 ORD → ASE 40 69.2%
OO5279 ORD → ASE 37 89.2%
OO5496 ASE → ORD 37 86.1%
OO6007 ORD → ASE 37 76.5%
OO4646 ORD → ASE 34 88.2%
OO5895 ORD → ASE 34 78.1%
OO4947 ASE → ORD 33 72.7%
OO5738 ORD → ASE 33 90.6%
OO5961 ASE → ORD 31 63.0%
OO5383 ORD → ASE 30 50.0%

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 239 +109.6% 9 76.2%
June 2026 158 +47.7% 13 67.7%
May 2026 41 +412.5% 0 95.1%
April 2026 116 +18.4% 2 70.7%
March 2026 380 +14.1% 28 70.8%
February 2026 298 +20.6% 24 56.4%
January 2026 273 −2.5% 19 55.3%
December 2025 225 +33.1% 1 50.2%
October 2025 111 +88.1% 0 75.7%
September 2025 180 0 82.2%
August 2025 146 4 70.5%
July 2025 114 10 60.5%
June 2025 107 3 49.5%
May 2025 8 0 87.5%
April 2025 98 7 71.4%
March 2025 333 19 56.5%
February 2025 247 18 54.7%
January 2025 280 6 64.6%
December 2024 169 12 54.4%
October 2024 59 0 81.4%

How to read this chart

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