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1,092 km · Domestic

Denver (DEN) – Missoula Montana (MSO)

In July 2026, 244 flights operated between Denver and Missoula Montana (both directions), and 83.6% 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
January170183▲ 7.6%
February156166▲ 6.4%
March176186▲ 5.7%
April1801800.0%
May1861860.0%
June207192▼ 7.2%
July263244▼ 7.2%
August260––
September194––
October244–in progress
November178––
December185––
Year to date (Jan–Jul)1,3381,337▼ 0.1%

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
January78.8%82.5%▲ 4.7%
February85.3%88.6%▲ 3.9%
March86.9%76.9%▼ 11.5%
April81.7%92.2%▲ 12.9%
May71.5%88.2%▲ 23.4%
June73.4%77.6%▲ 5.7%
July74.9%83.6%▲ 11.6%
August76.9%––
September87.6%––
October90.2%–in progress
November89.9%––
December71.4%––
Year-to-date average (Jan–Jul)78.9%84.2%▲ 6.7%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January03–
February00–
March00–
April00–
May20▼ 100.0%
June10▼ 100.0%
July10▼ 100.0%
August0––
September0––
October0–in progress
November4––
December3––
Year to date (Jan–Jul)43▼ 25.0%

Airlines on this route

  1. United Airlines 62.3%
  2. SkyWest Airlines 35.9%
  3. Frontier Airlines 1.8%

Oct 1, 2024 – Jul 31, 2026

By direction

DEN → MSO

Scheduled flights
2,123
Flights operated
2,117
Cancelled
6 · 0.3%
On-time departures
82.9%

MSO → DEN

Scheduled flights
2,123
Flights operated
2,113
Cancelled
10 · 0.5%
On-time departures
82.3%

DEN → MSO and MSO → DEN counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 2,644 62.3% 83.2% 3
SkyWest Airlines OO 1,524 35.9% 81.3% 13
Frontier Airlines F9 78 1.8% 84.6% 0

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 delay11:00–12:005.8min · 650 recorded · 649 measured
Gap to highest-delay hour16.0min11:00 ↔ 17:00
Recorded flights4,246DEN–MSO

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 · 93.2% · 651 recorded · 650 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 153 recorded · 153 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 30 recorded · 30 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 153 recorded · 153 measured · Source: the US BTS 11:00 · 88.0% · 650 recorded · 649 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 28 recorded · 28 measured · Source: the US BTS 13:00 · 82.3% · 502 recorded · 498 measured · Source: the US BTS 14:00 · 77.2% · 788 recorded · 786 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 17:00 · 75.0% · 605 recorded · 597 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 75.4% · 651 recorded · 651 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 · 6.4 min · 651 recorded · 650 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 153 recorded · 153 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 30 recorded · 30 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 153 recorded · 153 measured · Source: the US BTS 11:00 · 5.8 min · 650 recorded · 649 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 28 recorded · 28 measured · Source: the US BTS 13:00 · 12.9 min · 502 recorded · 498 measured · Source: the US BTS 14:00 · 15.5 min · 788 recorded · 786 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 17:00 · 21.8 min · 605 recorded · 597 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 16.2 min · 651 recorded · 651 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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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 · 651 · 651 recorded · 650 measured · Source: the US BTS 07:00 · 153 · 153 recorded · 153 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 30 · 30 recorded · 30 measured · Source: the US BTS 10:00 · 153 · 153 recorded · 153 measured · Source: the US BTS 11:00 · 650 · 650 recorded · 649 measured · Source: the US BTS 12:00 · 28 · 28 recorded · 28 measured · Source: the US BTS 13:00 · 502 · 502 recorded · 498 measured · Source: the US BTS 14:00 · 788 · 788 recorded · 786 measured · Source: the US BTS 15:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 16:00 · 33 · 33 recorded · 33 measured · Source: the US BTS 17:00 · 605 · 605 recorded · 597 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 651 · 651 recorded · 651 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———
06:0093.2%6.4 min650651
07:00Fewer than 200 measured departures—153153
08:00No observations———
09:00Fewer than 200 measured departures—3030
10:00Fewer than 200 measured departures—153153
11:0088.0%5.8 min649650
12:00Fewer than 200 measured departures—2828
13:0082.3%12.9 min498502
14:0077.2%15.5 min786788
15:00Fewer than 200 measured departures—22
16:00Fewer than 200 measured departures—3333
17:0075.0%21.8 min597605
18:00No observations———
19:0075.4%16.2 min651651
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 · 80.9% · 648 recorded · 648 measured · Source: the US BTS Tuesday · 85.8% · 589 recorded · 583 measured · Source: the US BTS Wednesday · 82.4% · 598 recorded · 592 measured · Source: the US BTS Thursday · 83.9% · 596 recorded · 596 measured · Source: the US BTS Friday · 80.5% · 642 recorded · 640 measured · Source: the US BTS Saturday · 82.7% · 575 recorded · 573 measured · Source: the US BTS Sunday · 82.3% · 598 recorded · 598 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 · 13.7 min · 648 recorded · 648 measured · Source: the US BTS Tuesday · 10.4 min · 589 recorded · 583 measured · Source: the US BTS Wednesday · 9.7 min · 598 recorded · 592 measured · Source: the US BTS Thursday · 13.2 min · 596 recorded · 596 measured · Source: the US BTS Friday · 13.6 min · 642 recorded · 640 measured · Source: the US BTS Saturday · 12.6 min · 575 recorded · 573 measured · Source: the US BTS Sunday · 12.9 min · 598 recorded · 598 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 · 648 · 648 recorded · 648 measured · Source: the US BTS Tuesday · 589 · 589 recorded · 583 measured · Source: the US BTS Wednesday · 598 · 598 recorded · 592 measured · Source: the US BTS Thursday · 596 · 596 recorded · 596 measured · Source: the US BTS Friday · 642 · 642 recorded · 640 measured · Source: the US BTS Saturday · 575 · 575 recorded · 573 measured · Source: the US BTS Sunday · 598 · 598 recorded · 598 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday80.9%13.7 min648648
Tuesday85.8%10.4 min583589
Wednesday82.4%9.7 min592598
Thursday83.9%13.2 min596596
Friday80.5%13.6 min640642
Saturday82.7%12.6 min573575
Sunday82.3%12.9 min598598

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 · 80.7% · 356 recorded · 353 measured · Source: the US BTS Feb · 87.0% · 322 recorded · 322 measured · Source: the US BTS Mar · 81.8% · 362 recorded · 362 measured · Source: the US BTS Apr · 86.9% · 360 recorded · 360 measured · Source: the US BTS May · 79.8% · 374 recorded · 372 measured · Source: the US BTS Jun · 75.4% · 400 recorded · 399 measured · Source: the US BTS Jul · 79.1% · 508 recorded · 507 measured · Source: the US BTS Aug · 76.9% · 260 recorded · 260 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 194 recorded · 194 measured · Source: the US BTS Oct · 90.1% · 374 recorded · 374 measured · Source: the US BTS Nov · 87.9% · 362 recorded · 356 measured · Source: the US BTS Dec · 80.9% · 374 recorded · 371 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 · 16.6 min · 356 recorded · 353 measured · Source: the US BTS Feb · 9.1 min · 322 recorded · 322 measured · Source: the US BTS Mar · 12.1 min · 362 recorded · 362 measured · Source: the US BTS Apr · 8.5 min · 360 recorded · 360 measured · Source: the US BTS May · 14.0 min · 374 recorded · 372 measured · Source: the US BTS Jun · 14.6 min · 400 recorded · 399 measured · Source: the US BTS Jul · 19.7 min · 508 recorded · 507 measured · Source: the US BTS Aug · 15.8 min · 260 recorded · 260 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 194 recorded · 194 measured · Source: the US BTS Oct · 3.9 min · 374 recorded · 374 measured · Source: the US BTS Nov · 5.0 min · 362 recorded · 356 measured · Source: the US BTS Dec · 15.4 min · 374 recorded · 371 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 · 356 · 356 recorded · 353 measured · Source: the US BTS Feb · 322 · 322 recorded · 322 measured · Source: the US BTS Mar · 362 · 362 recorded · 362 measured · Source: the US BTS Apr · 360 · 360 recorded · 360 measured · Source: the US BTS May · 374 · 374 recorded · 372 measured · Source: the US BTS Jun · 400 · 400 recorded · 399 measured · Source: the US BTS Jul · 508 · 508 recorded · 507 measured · Source: the US BTS Aug · 260 · 260 recorded · 260 measured · Source: the US BTS Sep · 194 · 194 recorded · 194 measured · Source: the US BTS Oct · 374 · 374 recorded · 374 measured · Source: the US BTS Nov · 362 · 362 recorded · 356 measured · Source: the US BTS Dec · 374 · 374 recorded · 371 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan80.7%16.6 min353356
Feb87.0%9.1 min322322
Mar81.8%12.1 min362362
Apr86.9%8.5 min360360
May79.8%14.0 min372374
Jun75.4%14.6 min399400
Jul79.1%19.7 min507508
Aug76.9%15.8 min260260
SepFewer than 200 measured departures—194194
Oct90.1%3.9 min374374
Nov87.9%5.0 min356362
Dec80.9%15.4 min371374

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 82.3% 3,493
  • Delayed >15 min 17.4% 737
  • Cancelled 0.4% 16
  • 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

38
38 of 38
Flight numbersBy direction DeparturesOn time
UA1092 DEN → MSO 522 75.9%
UA639 DEN → MSO 431 87.0%
UA2045 MSO → DEN 319 93.7%
UA1436 MSO → DEN 241 73.9%
OO5950 DEN → MSO 219 81.7%
UA1026 MSO → DEN 169 94.1%
UA1898 MSO → DEN 155 70.3%
OO5654 MSO → DEN 116 87.9%
OO5706 DEN → MSO 116 92.2%
OO5922 MSO → DEN 116 67.8%
OO5462 DEN → MSO 114 85.0%
OO5500 MSO → DEN 109 83.0%
OO5941 MSO → DEN 103 58.4%
OO5228 DEN → MSO 81 76.5%
OO4700 MSO → DEN 77 84.4%
UA1662 MSO → DEN 77 84.4%
UA2357 DEN → MSO 77 89.6%
OO4783 DEN → MSO 71 85.9%
UA2411 MSO → DEN 55 78.2%
OO4667 DEN → MSO 53 88.7%
OO5851 DEN → MSO 52 81.6%
OO5577 MSO → DEN 43 86.1%
UA510 DEN → MSO 40 77.5%
F993101 DEN → MSO 39 84.6%
F993102 MSO → DEN 39 84.6%
OO4697 DEN → MSO 37 97.3%
OO5484 MSO → DEN 37 100.0%
UA1183 DEN → MSO 37 86.5%
UA1342 DEN → MSO 37 94.6%
UA1460 MSO → DEN 37 91.9%
UA1653 MSO → DEN 37 94.6%
UA2174 MSO → DEN 37 83.8%
UA2246 MSO → DEN 37 78.4%
UA2338 MSO → DEN 37 86.1%
OO5298 MSO → DEN 36 77.1%
UA601 DEN → MSO 36 50.0%
UA705 DEN → MSO 35 91.4%
OO5632 MSO → DEN 30 70.0%

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 244 −7.2% 0 83.6%
June 2026 192 −7.2% 0 77.6%
May 2026 186 +0.0% 0 88.2%
April 2026 180 +0.0% 0 92.2%
March 2026 186 +5.7% 0 76.9%
February 2026 166 +6.4% 0 88.6%
January 2026 183 +7.6% 3 82.5%
December 2025 185 −0.5% 3 71.4%
November 2025 178 +0.0% 4 89.9%
October 2025 244 +87.7% 0 90.2%
September 2025 194 0 87.6%
August 2025 260 0 76.9%
July 2025 263 1 74.9%
June 2025 207 1 73.4%
May 2025 186 2 71.5%
April 2025 180 0 81.7%
March 2025 176 0 86.9%
February 2025 156 0 85.3%
January 2025 170 0 78.8%
December 2024 186 0 90.3%
November 2024 178 2 86.0%
October 2024 130 0 90.0%

How to read this chart

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