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145 km · Domestic

Cheyenne Regional Jerry Olson Field (CYS) – Denver (DEN)

In July 2026, 124 flights operated between Cheyenne Regional Jerry Olson Field and Denver (both directions), and 84.7% 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 periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January116122▲ 5.2%
February111108▼ 2.7%
March122118▼ 3.3%
April117120▲ 2.6%
May122123▲ 0.8%
June118120▲ 1.7%
July139124▼ 10.8%
August123––
September120––
October124–in progress
November118––
December126––
Year to date (Jan–Jul)845835▼ 1.2%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January79.3%80.3%▲ 1.3%
February67.6%77.8%▲ 15.1%
March86.9%81.4%▼ 6.3%
April83.8%75.8%▼ 9.5%
May77.9%82.1%▲ 5.4%
June66.9%78.3%▲ 17.0%
July70.5%84.7%▲ 20.1%
August74.0%––
September89.2%––
October87.1%–in progress
November95.8%––
December82.5%––
Year-to-date average (Jan–Jul)76.1%80.1%▲ 5.2%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January02–
February14▲ 300.0%
March26▲ 200.0%
April30▼ 100.0%
May21▼ 50.0%
June20▼ 100.0%
July50▼ 100.0%
August1––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)1513▼ 13.3%

By direction

CYS → DEN

Scheduled flights
1,310
Flights operated
1,293
Cancelled
17 · 1.3%
On-time departures
84.5%

DEN → CYS

Scheduled flights
1,310
Flights operated
1,294
Cancelled
16 · 1.2%
On-time departures
78.2%

CYS → DEN and DEN → CYS counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 2,620 100.0% 81.4% 33

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 delay14:00–15:003.9min · 219 recorded · 217 measured
Gap to highest-delay hour32.8min14:00 ↔ 21:00
Recorded flights2,620CYS–DEN

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 · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS 06:00 · 87.4% · 584 recorded · 578 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 12:00 · 80.6% · 641 recorded · 633 measured · Source: the US BTS 13:00 · 78.3% · 432 recorded · 423 measured · Source: the US BTS 14:00 · 87.1% · 219 recorded · 217 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · 75.9% · 655 recorded · 647 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 · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS 06:00 · 11.4 min · 584 recorded · 578 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 12:00 · 9.5 min · 641 recorded · 633 measured · Source: the US BTS 13:00 · 18.1 min · 432 recorded · 423 measured · Source: the US BTS 14:00 · 3.9 min · 219 recorded · 217 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · 36.7 min · 655 recorded · 647 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 · 72 · 72 recorded · 72 measured · Source: the US BTS 06:00 · 584 · 584 recorded · 578 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 09:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 12:00 · 641 · 641 recorded · 633 measured · Source: the US BTS 13:00 · 432 · 432 recorded · 423 measured · Source: the US BTS 14:00 · 219 · 219 recorded · 217 measured · Source: the US BTS 15:00 · 10 · 10 recorded · 10 measured · Source: the US BTS 16:00 · 1 · 1 recorded · 1 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · 655 · 655 recorded · 647 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———
05:00Fewer than 200 measured departures—7272
06:0087.4%11.4 min578584
07:00No observations———
08:00Fewer than 200 measured departures—22
09:00Fewer than 200 measured departures—22
10:00No observations———
11:00Fewer than 200 measured departures—22
12:0080.6%9.5 min633641
13:0078.3%18.1 min423432
14:0087.1%3.9 min217219
15:00Fewer than 200 measured departures—1010
16:00Fewer than 200 measured departures—11
17:00No observations———
18:00No observations———
19:00No observations———
20:00No observations———
21:0075.9%36.7 min647655
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 · 84.3% · 382 recorded · 382 measured · Source: the US BTS Tuesday · 84.7% · 378 recorded · 372 measured · Source: the US BTS Wednesday · 79.0% · 378 recorded · 376 measured · Source: the US BTS Thursday · 80.0% · 376 recorded · 369 measured · Source: the US BTS Friday · 77.4% · 380 recorded · 367 measured · Source: the US BTS Saturday · 81.5% · 344 recorded · 340 measured · Source: the US BTS Sunday · 82.7% · 382 recorded · 381 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 · 9.6 min · 382 recorded · 382 measured · Source: the US BTS Tuesday · 26.2 min · 378 recorded · 372 measured · Source: the US BTS Wednesday · 22.1 min · 378 recorded · 376 measured · Source: the US BTS Thursday · 19.5 min · 376 recorded · 369 measured · Source: the US BTS Friday · 17.2 min · 380 recorded · 367 measured · Source: the US BTS Saturday · 15.0 min · 344 recorded · 340 measured · Source: the US BTS Sunday · 13.6 min · 382 recorded · 381 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 · 382 · 382 recorded · 382 measured · Source: the US BTS Tuesday · 378 · 378 recorded · 372 measured · Source: the US BTS Wednesday · 378 · 378 recorded · 376 measured · Source: the US BTS Thursday · 376 · 376 recorded · 369 measured · Source: the US BTS Friday · 380 · 380 recorded · 367 measured · Source: the US BTS Saturday · 344 · 344 recorded · 340 measured · Source: the US BTS Sunday · 382 · 382 recorded · 381 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday84.3%9.6 min382382
Tuesday84.7%26.2 min372378
Wednesday79.0%22.1 min376378
Thursday80.0%19.5 min369376
Friday77.4%17.2 min367380
Saturday81.5%15.0 min340344
Sunday82.7%13.6 min381382

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 · 79.8% · 240 recorded · 238 measured · Source: the US BTS Feb · 72.6% · 224 recorded · 219 measured · Source: the US BTS Mar · 84.2% · 248 recorded · 240 measured · Source: the US BTS Apr · 79.8% · 240 recorded · 237 measured · Source: the US BTS May · 80.0% · 248 recorded · 245 measured · Source: the US BTS Jun · 72.7% · 240 recorded · 238 measured · Source: the US BTS Jul · 77.2% · 268 recorded · 263 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 124 recorded · 123 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 120 recorded · 120 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 198 recorded · 198 measured · Source: the US BTS Nov · 93.3% · 228 recorded · 224 measured · Source: the US BTS Dec · 88.0% · 242 recorded · 242 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 · 17.0 min · 240 recorded · 238 measured · Source: the US BTS Feb · 34.1 min · 224 recorded · 219 measured · Source: the US BTS Mar · 21.7 min · 248 recorded · 240 measured · Source: the US BTS Apr · 18.4 min · 240 recorded · 237 measured · Source: the US BTS May · 24.3 min · 248 recorded · 245 measured · Source: the US BTS Jun · 24.6 min · 240 recorded · 238 measured · Source: the US BTS Jul · 17.7 min · 268 recorded · 263 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 124 recorded · 123 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 120 recorded · 120 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 198 recorded · 198 measured · Source: the US BTS Nov · -2.0 min · 228 recorded · 224 measured · Source: the US BTS Dec · 10.3 min · 242 recorded · 242 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 · 240 · 240 recorded · 238 measured · Source: the US BTS Feb · 224 · 224 recorded · 219 measured · Source: the US BTS Mar · 248 · 248 recorded · 240 measured · Source: the US BTS Apr · 240 · 240 recorded · 237 measured · Source: the US BTS May · 248 · 248 recorded · 245 measured · Source: the US BTS Jun · 240 · 240 recorded · 238 measured · Source: the US BTS Jul · 268 · 268 recorded · 263 measured · Source: the US BTS Aug · 124 · 124 recorded · 123 measured · Source: the US BTS Sep · 120 · 120 recorded · 120 measured · Source: the US BTS Oct · 198 · 198 recorded · 198 measured · Source: the US BTS Nov · 228 · 228 recorded · 224 measured · Source: the US BTS Dec · 242 · 242 recorded · 242 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan79.8%17.0 min238240
Feb72.6%34.1 min219224
Mar84.2%21.7 min240248
Apr79.8%18.4 min237240
May80.0%24.3 min245248
Jun72.7%24.6 min238240
Jul77.2%17.7 min263268
AugFewer than 200 measured departures—123124
SepFewer than 200 measured departures—120120
OctFewer than 200 measured departures—198198
Nov93.3%-2.0 min224228
Dec88.0%10.3 min242242

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 80.3% 2,105
  • Delayed >15 min 18.4% 482
  • Cancelled 1.3% 33
  • 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

11
11 of 11
Flight numbersBy direction DeparturesOn time
OO5083 DEN → CYS 637 75.7%
OO5036 CYS → DEN 620 87.6%
OO5024 CYS → DEN 378 81.5%
OO5024 DEN → CYS 348 77.8%
OO5084 CYS → DEN 241 81.9%
OO5033 DEN → CYS 68 86.8%
OO5054 DEN → CYS 56 79.6%
OO5032 DEN → CYS 53 75.0%
OO5095 DEN → CYS 41 85.4%
OO5063 CYS → DEN 37 91.9%
OO5141 DEN → CYS 36 91.7%

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 124 −10.8% 0 84.7%
June 2026 120 +1.7% 0 78.3%
May 2026 123 +0.8% 1 82.1%
April 2026 120 +2.6% 0 75.8%
March 2026 118 −3.3% 6 81.4%
February 2026 108 −2.7% 4 77.8%
January 2026 122 +5.2% 2 80.3%
December 2025 126 +8.6% 0 82.5%
November 2025 118 +11.3% 0 95.8%
October 2025 124 +67.6% 0 87.1%
September 2025 120 0 89.2%
August 2025 123 1 74.0%
July 2025 139 5 70.5%
June 2025 118 2 66.9%
May 2025 122 2 77.9%
April 2025 117 3 83.8%
March 2025 122 2 86.9%
February 2025 111 1 67.6%
January 2025 116 0 79.3%
December 2024 116 0 94.0%
November 2024 106 4 90.6%
October 2024 74 0 87.8%

How to read this chart

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