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937 km · Domestic

Denver (DEN) – Williston Basin (XWA)

In July 2026, 221 flights operated between Denver and Williston Basin (both directions), and 80.5% 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
January220179▼ 18.6%
February198193▼ 2.5%
March228230▲ 0.9%
April230175▼ 23.9%
May259227▼ 12.4%
June298222▼ 25.5%
July304221▼ 27.3%
August298––
September274––
October240–in progress
November218––
December229––
Year to date (Jan–Jul)1,7371,447▼ 16.7%

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
January70.0%77.7%▲ 11.0%
February70.7%80.8%▲ 14.3%
March86.4%74.8%▼ 13.4%
April78.3%78.9%▲ 0.8%
May79.9%81.5%▲ 2.0%
June72.5%76.1%▲ 5.0%
July75.0%80.5%▲ 7.3%
August77.9%––
September89.8%––
October88.3%–in progress
November89.9%––
December66.8%––
Year-to-date average (Jan–Jul)76.1%78.6%▲ 3.3%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January214▲ 600.0%
February61▼ 83.3%
March07–
April20▼ 100.0%
May220.0%
June20▼ 100.0%
July41▼ 75.0%
August2––
September0––
October0–in progress
November6––
December2––
Year to date (Jan–Jul)1825▲ 38.9%

By direction

DEN → XWA

Scheduled flights
2,551
Flights operated
2,520
Cancelled
31 · 1.2%
On-time departures
79.6%

XWA → DEN

Scheduled flights
2,551
Flights operated
2,516
Cancelled
35 · 1.4%
On-time departures
79.2%

DEN → XWA and XWA → DEN counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 5,102 100.0% 79.4% 66

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 delay11:00–12:009.9min · 1,028 recorded · 1,021 measured
Gap to highest-delay hour24.6min11:00 ↔ 17:00
Recorded flights5,102DEN–XWA

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 · 34 recorded · 34 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 84 recorded · 84 measured · Source: the US BTS 07:00 · 88.3% · 935 recorded · 922 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 39 recorded · 39 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 159 recorded · 158 measured · Source: the US BTS 11:00 · 82.0% · 1,028 recorded · 1,021 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 81.4% · 437 recorded · 435 measured · Source: the US BTS 14:00 · 77.4% · 356 recorded · 350 measured · Source: the US BTS 15:00 · 73.8% · 483 recorded · 477 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 159 recorded · 157 measured · Source: the US BTS 17:00 · 61.2% · 265 recorded · 260 measured · Source: the US BTS 18:00 · 72.6% · 271 recorded · 263 measured · Source: the US BTS 19:00 · 69.7% · 257 recorded · 254 measured · Source: the US BTS 20:00 · 85.0% · 262 recorded · 254 measured · Source: the US BTS 21:00 · 79.4% · 277 recorded · 272 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 · 34 recorded · 34 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 84 recorded · 84 measured · Source: the US BTS 07:00 · 12.4 min · 935 recorded · 922 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 39 recorded · 39 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 159 recorded · 158 measured · Source: the US BTS 11:00 · 9.9 min · 1,028 recorded · 1,021 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 10.3 min · 437 recorded · 435 measured · Source: the US BTS 14:00 · 16.3 min · 356 recorded · 350 measured · Source: the US BTS 15:00 · 28.0 min · 483 recorded · 477 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 159 recorded · 157 measured · Source: the US BTS 17:00 · 34.5 min · 265 recorded · 260 measured · Source: the US BTS 18:00 · 25.2 min · 271 recorded · 263 measured · Source: the US BTS 19:00 · 20.6 min · 257 recorded · 254 measured · Source: the US BTS 20:00 · 23.9 min · 262 recorded · 254 measured · Source: the US BTS 21:00 · 22.3 min · 277 recorded · 272 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 · 34 · 34 recorded · 34 measured · Source: the US BTS 06:00 · 84 · 84 recorded · 84 measured · Source: the US BTS 07:00 · 935 · 935 recorded · 922 measured · Source: the US BTS 08:00 · 56 · 56 recorded · 56 measured · Source: the US BTS 09:00 · 39 · 39 recorded · 39 measured · Source: the US BTS 10:00 · 159 · 159 recorded · 158 measured · Source: the US BTS 11:00 · 1,028 · 1,028 recorded · 1,021 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 437 · 437 recorded · 435 measured · Source: the US BTS 14:00 · 356 · 356 recorded · 350 measured · Source: the US BTS 15:00 · 483 · 483 recorded · 477 measured · Source: the US BTS 16:00 · 159 · 159 recorded · 157 measured · Source: the US BTS 17:00 · 265 · 265 recorded · 260 measured · Source: the US BTS 18:00 · 271 · 271 recorded · 263 measured · Source: the US BTS 19:00 · 257 · 257 recorded · 254 measured · Source: the US BTS 20:00 · 262 · 262 recorded · 254 measured · Source: the US BTS 21:00 · 277 · 277 recorded · 272 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—3434
06:00Fewer than 200 measured departures—8484
07:0088.3%12.4 min922935
08:00Fewer than 200 measured departures—5656
09:00Fewer than 200 measured departures—3939
10:00Fewer than 200 measured departures—158159
11:0082.0%9.9 min1,0211,028
12:00No observations———
13:0081.4%10.3 min435437
14:0077.4%16.3 min350356
15:0073.8%28.0 min477483
16:00Fewer than 200 measured departures—157159
17:0061.2%34.5 min260265
18:0072.6%25.2 min263271
19:0069.7%20.6 min254257
20:0085.0%23.9 min254262
21:0079.4%22.3 min272277
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 · 76.5% · 768 recorded · 763 measured · Source: the US BTS Tuesday · 80.4% · 746 recorded · 731 measured · Source: the US BTS Wednesday · 80.3% · 750 recorded · 741 measured · Source: the US BTS Thursday · 80.1% · 750 recorded · 743 measured · Source: the US BTS Friday · 79.0% · 765 recorded · 746 measured · Source: the US BTS Saturday · 81.4% · 574 recorded · 570 measured · Source: the US BTS Sunday · 78.6% · 749 recorded · 742 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 · 19.7 min · 768 recorded · 763 measured · Source: the US BTS Tuesday · 16.8 min · 746 recorded · 731 measured · Source: the US BTS Wednesday · 16.7 min · 750 recorded · 741 measured · Source: the US BTS Thursday · 15.5 min · 750 recorded · 743 measured · Source: the US BTS Friday · 16.2 min · 765 recorded · 746 measured · Source: the US BTS Saturday · 19.2 min · 574 recorded · 570 measured · Source: the US BTS Sunday · 22.9 min · 749 recorded · 742 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 · 768 · 768 recorded · 763 measured · Source: the US BTS Tuesday · 746 · 746 recorded · 731 measured · Source: the US BTS Wednesday · 750 · 750 recorded · 741 measured · Source: the US BTS Thursday · 750 · 750 recorded · 743 measured · Source: the US BTS Friday · 765 · 765 recorded · 746 measured · Source: the US BTS Saturday · 574 · 574 recorded · 570 measured · Source: the US BTS Sunday · 749 · 749 recorded · 742 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday76.5%19.7 min763768
Tuesday80.4%16.8 min731746
Wednesday80.3%16.7 min741750
Thursday80.1%15.5 min743750
Friday79.0%16.2 min746765
Saturday81.4%19.2 min570574
Sunday78.6%22.9 min742749

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 · 73.4% · 415 recorded · 399 measured · Source: the US BTS Feb · 75.7% · 398 recorded · 391 measured · Source: the US BTS Mar · 80.6% · 465 recorded · 458 measured · Source: the US BTS Apr · 78.5% · 407 recorded · 405 measured · Source: the US BTS May · 80.7% · 490 recorded · 486 measured · Source: the US BTS Jun · 74.0% · 522 recorded · 520 measured · Source: the US BTS Jul · 77.3% · 530 recorded · 525 measured · Source: the US BTS Aug · 77.9% · 300 recorded · 298 measured · Source: the US BTS Sep · 89.8% · 274 recorded · 274 measured · Source: the US BTS Oct · 88.7% · 399 recorded · 399 measured · Source: the US BTS Nov · 85.0% · 443 recorded · 426 measured · Source: the US BTS Dec · 75.8% · 459 recorded · 455 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 · 20.6 min · 415 recorded · 399 measured · Source: the US BTS Feb · 23.1 min · 398 recorded · 391 measured · Source: the US BTS Mar · 14.1 min · 465 recorded · 458 measured · Source: the US BTS Apr · 21.9 min · 407 recorded · 405 measured · Source: the US BTS May · 12.9 min · 490 recorded · 486 measured · Source: the US BTS Jun · 22.4 min · 522 recorded · 520 measured · Source: the US BTS Jul · 19.2 min · 530 recorded · 525 measured · Source: the US BTS Aug · 19.1 min · 300 recorded · 298 measured · Source: the US BTS Sep · 2.6 min · 274 recorded · 274 measured · Source: the US BTS Oct · 4.5 min · 399 recorded · 399 measured · Source: the US BTS Nov · 19.9 min · 443 recorded · 426 measured · Source: the US BTS Dec · 30.6 min · 459 recorded · 455 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 · 415 · 415 recorded · 399 measured · Source: the US BTS Feb · 398 · 398 recorded · 391 measured · Source: the US BTS Mar · 465 · 465 recorded · 458 measured · Source: the US BTS Apr · 407 · 407 recorded · 405 measured · Source: the US BTS May · 490 · 490 recorded · 486 measured · Source: the US BTS Jun · 522 · 522 recorded · 520 measured · Source: the US BTS Jul · 530 · 530 recorded · 525 measured · Source: the US BTS Aug · 300 · 300 recorded · 298 measured · Source: the US BTS Sep · 274 · 274 recorded · 274 measured · Source: the US BTS Oct · 399 · 399 recorded · 399 measured · Source: the US BTS Nov · 443 · 443 recorded · 426 measured · Source: the US BTS Dec · 459 · 459 recorded · 455 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan73.4%20.6 min399415
Feb75.7%23.1 min391398
Mar80.6%14.1 min458465
Apr78.5%21.9 min405407
May80.7%12.9 min486490
Jun74.0%22.4 min520522
Jul77.3%19.2 min525530
Aug77.9%19.1 min298300
Sep89.8%2.6 min274274
Oct88.7%4.5 min399399
Nov85.0%19.9 min426443
Dec75.8%30.6 min455459

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 78.4% 3,998
  • Delayed >15 min 20.3% 1,038
  • Cancelled 1.3% 66
  • 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

27
27 of 27
Flight numbersBy direction DeparturesOn time
OO5367 XWA → DEN 655 88.8%
OO5528 XWA → DEN 601 74.8%
OO5685 XWA → DEN 492 84.7%
OO5261 DEN → XWA 491 82.9%
OO5461 DEN → XWA 416 78.5%
OO5463 DEN → XWA 365 80.7%
OO5293 DEN → XWA 352 86.9%
OO5302 DEN → XWA 201 83.4%
OO5906 XWA → DEN 146 72.3%
OO5953 XWA → DEN 118 85.6%
OO5620 XWA → DEN 115 58.9%
OO5456 XWA → DEN 102 65.7%
OO5945 DEN → XWA 89 56.8%
OO5222 DEN → XWA 84 69.5%
OO5847 XWA → DEN 78 73.3%
OO5344 XWA → DEN 77 82.9%
OO5354 DEN → XWA 63 68.3%
OO5282 DEN → XWA 37 66.7%
OO4793 DEN → XWA 36 62.9%
OO5307 XWA → DEN 36 61.1%
OO4795 DEN → XWA 35 90.9%
OO5255 DEN → XWA 35 85.7%
OO5965 DEN → XWA 35 88.6%
OO5368 DEN → XWA 33 80.7%
OO4789 DEN → XWA 32 78.1%
OO5260 XWA → DEN 32 64.5%
OO5547 DEN → XWA 30 75.9%

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 221 −27.3% 1 80.5%
June 2026 222 −25.5% 0 76.1%
May 2026 227 −12.4% 2 81.5%
April 2026 175 −23.9% 0 78.9%
March 2026 230 +0.9% 7 74.8%
February 2026 193 −2.5% 1 80.8%
January 2026 179 −18.6% 14 77.7%
December 2025 229 +1.3% 2 66.8%
November 2025 218 +4.8% 6 89.9%
October 2025 240 +50.9% 0 88.3%
September 2025 274 0 89.8%
August 2025 298 2 77.9%
July 2025 304 4 75.0%
June 2025 298 2 72.5%
May 2025 259 2 79.9%
April 2025 230 2 78.3%
March 2025 228 0 86.4%
February 2025 198 6 70.7%
January 2025 220 2 70.0%
December 2024 226 2 85.0%
November 2024 208 11 79.8%
October 2024 159 0 89.3%

How to read this chart

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