754 km · Domestic

Denver (DEN) – Yellowstone (WYS)

In July 2026, 88 flights operated between Denver and Yellowstone (both directions), and 77.3% left on time, according to the US BTS.

Flights operated · latest month88▲ 22.2%vs July 2025
On-time departures78.5%Average delay 17.4 min
Cancelled0.3%2 of 616 scheduled flights
Airlines1
Rank in country#2,446

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

Flights per month

Partial coverage: only airlines that report on-time data to the US DOT · 9 of 9 periods have data

May 2025 July 2025 September 2025 May 2026 July 2026

Short series — DEN–WYS has only 9 months so far. Enough to show the level now, not enough to read a trend.

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

The most recent periods9 periods

Period	Flights operated 2025	Flights operated 2026	Change vs last year
January	–	–	–
February	–	–	–
March	–	–	–
April	–	–	–
May	59	68	▲ 15.3%
June	70	84	▲ 20.0%
July	72	88	▲ 22.2%
August	73	–	–
September	70	–	–
October	30	–	in progress
November	–	–	–
December	–	–	–

On-time departures by month

Partial coverage: only airlines that report on-time data to the US DOT · 9 of 9 periods have data

May 2025 July 2025 September 2025 May 2026 July 2026

Short series — DEN–WYS has only 9 months so far. Enough to show the level now, not enough to read a trend.

Departures within 15 minutes of schedule.

The most recent periods9 periods

Period	On-time departures 2025	On-time departures 2026	Change vs last year
January	–	–	–
February	–	–	–
March	–	–	–
April	–	–	–
May	83.1%	76.5%	▼ 7.9%
June	70.0%	85.7%	▲ 22.4%
July	75.0%	77.3%	▲ 3.1%
August	68.5%	–	–
September	92.9%	–	–
October	76.7%	–	in progress
November	–	–	–
December	–	–	–

Cancelled flights by month

Partial coverage: only airlines that report on-time data to the US DOT · 9 of 9 periods have data

May 2025 July 2025 September 2025 May 2026 July 2026

Short series — DEN–WYS has only 9 months so far. Enough to show the level now, not enough to read a trend.

The most recent periods9 periods

Period	Cancelled flights 2025	Cancelled flights 2026	Change vs last year
January	–	–	–
February	–	–	–
March	–	–	–
April	–	–	–
May	1	0	▼ 100.0%
June	0	0	–
July	0	0	–
August	1	–	–
September	0	–	–
October	0	–	in progress
November	–	–	–
December	–	–	–

By direction

DEN → WYS

Scheduled flights: 308
Flights operated: 308
Cancelled: 0 · 0.0%
On-time departures: 82.1%

WYS → DEN

Scheduled flights: 308
Flights operated: 306
Cancelled: 2 · 0.6%
On-time departures: 74.8%

DEN → WYS and WYS → DEN counted separately.

Airlines on this route

May 1, 2025 – Jul 31, 2026

Airline	Scheduled flights	Share	On-time departures	Cancelled
SkyWest Airlines OO	616	100.0%	78.5%	2

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 · May 6, 2025 → Jul 31, 2026

Lowest average delay11:00–12:009.4min · 252 recorded · 252 measured

Recorded flights616DEN–WYS

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT

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

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

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

View the figures

Departure hour	On-time departures	Average departure delay	With departure time	Recorded flights
00:00	No observations	—	—	—
01:00	No observations	—	—	—
02:00	No observations	—	—	—
03:00	No observations	—	—	—
04:00	No observations	—	—	—
05:00	No observations	—	—	—
06:00	No observations	—	—	—
07:00	Fewer than 200 measured departures	—	17	17
08:00	Fewer than 200 measured departures	—	8	8
09:00	No observations	—	—	—
10:00	Fewer than 200 measured departures	—	23	23
11:00	81.4%	9.4 min	252	252
12:00	No observations	—	—	—
13:00	Fewer than 200 measured departures	—	108	109
14:00	Fewer than 200 measured departures	—	173	174
15:00	No observations	—	—	—
16:00	No observations	—	—	—
17:00	Fewer than 200 measured departures	—	33	33
18:00	No observations	—	—	—
19:00	No observations	—	—	—
20:00	No observations	—	—	—
21:00	No observations	—	—	—
22:00	No observations	—	—	—
23:00	No observations	—	—	—

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT

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

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures

Day of week	On-time departures	Average departure delay	With departure time	Recorded flights
Monday	Fewer than 200 measured departures	—	70	70
Tuesday	Fewer than 200 measured departures	—	76	76
Wednesday	Fewer than 200 measured departures	—	73	74
Thursday	Fewer than 200 measured departures	—	72	72
Friday	Fewer than 200 measured departures	—	98	98
Saturday	Fewer than 200 measured departures	—	129	130
Sunday	Fewer than 200 measured departures	—	96	96

Month of year

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

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT

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

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures

Month of year	On-time departures	Average departure delay	With departure time	Recorded flights
Jan	No observations	—	—	—
Feb	No observations	—	—	—
Mar	No observations	—	—	—
Apr	No observations	—	—	—
May	Fewer than 200 measured departures	—	127	128
Jun	Fewer than 200 measured departures	—	154	154
Jul	Fewer than 200 measured departures	—	160	160
Aug	Fewer than 200 measured departures	—	73	74
Sep	Fewer than 200 measured departures	—	70	70
Oct	Fewer than 200 measured departures	—	30	30
Nov	No observations	—	—	—
Dec	No observations	—	—	—

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 78.2% 482
Delayed >15 min 21.4% 132
Cancelled 0.3% 2
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

Flight numbers	By direction	Departures	On time
OO5139	DEN → WYS	163	78.5%
OO5056	WYS → DEN	112	73.9%
OO6063	WYS → DEN	61	77.1%
OO6063	DEN → WYS	50	88.0%
OO6062	DEN → WYS	37	83.8%
OO5082	WYS → DEN	35	62.9%
OO6064	DEN → WYS	33	78.8%

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

Period	Flights operated	Change vs last year	Cancelled	On-time departures
July 2026	88	+22.2%	0	77.3%
June 2026	84	+20.0%	0	85.7%
May 2026	68	+15.3%	0	76.5%
October 2025	30		0	76.7%
September 2025	70		0	92.9%
August 2025	73		1	68.5%
July 2025	72		0	75.0%
June 2025	70		0	70.0%
May 2025	59		1	83.1%

Denver (DEN) – Yellowstone (WYS)

Flights per month

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On-time departures by month

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Cancelled flights by month

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By direction

DEN → WYS

WYS → DEN

Airlines on this route

Flight timing & delays

Departure hour

Day of week

Month of year

Recorded outcomes

Flight numbers on this route

How to read this chart