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2,325 km · Domestic

Denver (DEN) – Jacksonville (JAX)

In July 2026, 173 flights operated between Denver and Jacksonville (both directions), and 71.1% 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
January135176▲ 30.4%
February145153▲ 5.5%
March193189▼ 2.1%
April1821820.0%
May164182▲ 11.0%
June126170▲ 34.9%
July124173▲ 39.5%
August124––
September132––
October184–in progress
November182––
December190––
Year to date (Jan–Jul)1,0691,225▲ 14.6%

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
January74.1%90.3%▲ 21.9%
February86.9%83.0%▼ 4.5%
March85.5%73.5%▼ 14.0%
April81.9%80.2%▼ 2.1%
May74.4%80.2%▲ 7.8%
June71.4%67.6%▼ 5.3%
July76.6%71.1%▼ 7.2%
August81.5%––
September85.6%––
October86.4%–in progress
November91.2%––
December74.7%––
Year-to-date average (Jan–Jul)78.7%78.0%▼ 0.9%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January20▼ 100.0%
February01–
March110.0%
April00–
May20▼ 100.0%
June00–
July01–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)53▼ 40.0%

Airlines on this route

  1. United Airlines 62.1%
  2. Southwest Airlines 37.9%

Oct 1, 2024 – Jul 31, 2026

By direction

DEN → JAX

Scheduled flights
1,792
Flights operated
1,790
Cancelled
2 · 0.1%
On-time departures
77.0%

JAX → DEN

Scheduled flights
1,792
Flights operated
1,786
Cancelled
6 · 0.3%
On-time departures
84.0%

DEN → JAX and JAX → DEN counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 2,224 62.1% 85.0% 3
Southwest Airlines WN 1,360 37.9% 73.1% 5

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 delay09:00–10:003.4min · 427 recorded · 427 measured
Gap to highest-delay hour16.6min09:00 ↔ 17:00
Recorded flights3,584DEN–JAX

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 · 95 recorded · 95 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 65 recorded · 64 measured · Source: the US BTS 08:00 · 92.7% · 687 recorded · 685 measured · Source: the US BTS 09:00 · 89.5% · 427 recorded · 427 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 166 recorded · 166 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 119 recorded · 119 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 13:00 · 73.2% · 262 recorded · 261 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 138 recorded · 138 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 194 recorded · 193 measured · Source: the US BTS 16:00 · 78.0% · 753 recorded · 751 measured · Source: the US BTS 17:00 · 67.8% · 501 recorded · 500 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 81 recorded · 81 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 41 recorded · 41 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 · Fewer than 200 measured departures · 95 recorded · 95 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 65 recorded · 64 measured · Source: the US BTS 08:00 · 3.5 min · 687 recorded · 685 measured · Source: the US BTS 09:00 · 3.4 min · 427 recorded · 427 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 166 recorded · 166 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 119 recorded · 119 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 13:00 · 12.8 min · 262 recorded · 261 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 138 recorded · 138 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 194 recorded · 193 measured · Source: the US BTS 16:00 · 13.4 min · 753 recorded · 751 measured · Source: the US BTS 17:00 · 19.9 min · 501 recorded · 500 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 81 recorded · 81 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 41 recorded · 41 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.

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 · 95 · 95 recorded · 95 measured · Source: the US BTS 06:00 · 33 · 33 recorded · 33 measured · Source: the US BTS 07:00 · 65 · 65 recorded · 64 measured · Source: the US BTS 08:00 · 687 · 687 recorded · 685 measured · Source: the US BTS 09:00 · 427 · 427 recorded · 427 measured · Source: the US BTS 10:00 · 166 · 166 recorded · 166 measured · Source: the US BTS 11:00 · 119 · 119 recorded · 119 measured · Source: the US BTS 12:00 · 22 · 22 recorded · 22 measured · Source: the US BTS 13:00 · 262 · 262 recorded · 261 measured · Source: the US BTS 14:00 · 138 · 138 recorded · 138 measured · Source: the US BTS 15:00 · 194 · 194 recorded · 193 measured · Source: the US BTS 16:00 · 753 · 753 recorded · 751 measured · Source: the US BTS 17:00 · 501 · 501 recorded · 500 measured · Source: the US BTS 18:00 · 81 · 81 recorded · 81 measured · Source: the US BTS 19:00 · 41 · 41 recorded · 41 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———
05:00Fewer than 200 measured departures—9595
06:00Fewer than 200 measured departures—3333
07:00Fewer than 200 measured departures—6465
08:0092.7%3.5 min685687
09:0089.5%3.4 min427427
10:00Fewer than 200 measured departures—166166
11:00Fewer than 200 measured departures—119119
12:00Fewer than 200 measured departures—2222
13:0073.2%12.8 min261262
14:00Fewer than 200 measured departures—138138
15:00Fewer than 200 measured departures—193194
16:0078.0%13.4 min751753
17:0067.8%19.9 min500501
18:00Fewer than 200 measured departures—8181
19:00Fewer than 200 measured departures—4141
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 · 81.8% · 516 recorded · 515 measured · Source: the US BTS Tuesday · 83.8% · 478 recorded · 476 measured · Source: the US BTS Wednesday · 83.0% · 484 recorded · 483 measured · Source: the US BTS Thursday · 79.7% · 514 recorded · 513 measured · Source: the US BTS Friday · 79.1% · 518 recorded · 517 measured · Source: the US BTS Saturday · 81.1% · 556 recorded · 554 measured · Source: the US BTS Sunday · 75.5% · 518 recorded · 518 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 · 8.1 min · 516 recorded · 515 measured · Source: the US BTS Tuesday · 8.1 min · 478 recorded · 476 measured · Source: the US BTS Wednesday · 8.2 min · 484 recorded · 483 measured · Source: the US BTS Thursday · 10.3 min · 514 recorded · 513 measured · Source: the US BTS Friday · 14.7 min · 518 recorded · 517 measured · Source: the US BTS Saturday · 10.1 min · 556 recorded · 554 measured · Source: the US BTS Sunday · 14.7 min · 518 recorded · 518 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 · 516 · 516 recorded · 515 measured · Source: the US BTS Tuesday · 478 · 478 recorded · 476 measured · Source: the US BTS Wednesday · 484 · 484 recorded · 483 measured · Source: the US BTS Thursday · 514 · 514 recorded · 513 measured · Source: the US BTS Friday · 518 · 518 recorded · 517 measured · Source: the US BTS Saturday · 556 · 556 recorded · 554 measured · Source: the US BTS Sunday · 518 · 518 recorded · 518 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday81.8%8.1 min515516
Tuesday83.8%8.1 min476478
Wednesday83.0%8.2 min483484
Thursday79.7%10.3 min513514
Friday79.1%14.7 min517518
Saturday81.1%10.1 min554556
Sunday75.5%14.7 min518518

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 · 83.3% · 313 recorded · 311 measured · Source: the US BTS Feb · 84.9% · 299 recorded · 298 measured · Source: the US BTS Mar · 79.6% · 384 recorded · 382 measured · Source: the US BTS Apr · 81.0% · 364 recorded · 364 measured · Source: the US BTS May · 77.5% · 348 recorded · 346 measured · Source: the US BTS Jun · 69.3% · 296 recorded · 296 measured · Source: the US BTS Jul · 73.4% · 298 recorded · 297 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 124 recorded · 124 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 132 recorded · 132 measured · Source: the US BTS Oct · 86.9% · 290 recorded · 290 measured · Source: the US BTS Nov · 86.1% · 360 recorded · 360 measured · Source: the US BTS Dec · 80.1% · 376 recorded · 376 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 · 7.0 min · 313 recorded · 311 measured · Source: the US BTS Feb · 9.1 min · 299 recorded · 298 measured · Source: the US BTS Mar · 10.3 min · 384 recorded · 382 measured · Source: the US BTS Apr · 9.3 min · 364 recorded · 364 measured · Source: the US BTS May · 14.8 min · 348 recorded · 346 measured · Source: the US BTS Jun · 18.7 min · 296 recorded · 296 measured · Source: the US BTS Jul · 18.5 min · 298 recorded · 297 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 124 recorded · 124 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 132 recorded · 132 measured · Source: the US BTS Oct · 7.1 min · 290 recorded · 290 measured · Source: the US BTS Nov · 4.9 min · 360 recorded · 360 measured · Source: the US BTS Dec · 10.7 min · 376 recorded · 376 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 · 313 · 313 recorded · 311 measured · Source: the US BTS Feb · 299 · 299 recorded · 298 measured · Source: the US BTS Mar · 384 · 384 recorded · 382 measured · Source: the US BTS Apr · 364 · 364 recorded · 364 measured · Source: the US BTS May · 348 · 348 recorded · 346 measured · Source: the US BTS Jun · 296 · 296 recorded · 296 measured · Source: the US BTS Jul · 298 · 298 recorded · 297 measured · Source: the US BTS Aug · 124 · 124 recorded · 124 measured · Source: the US BTS Sep · 132 · 132 recorded · 132 measured · Source: the US BTS Oct · 290 · 290 recorded · 290 measured · Source: the US BTS Nov · 360 · 360 recorded · 360 measured · Source: the US BTS Dec · 376 · 376 recorded · 376 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan83.3%7.0 min311313
Feb84.9%9.1 min298299
Mar79.6%10.3 min382384
Apr81.0%9.3 min364364
May77.5%14.8 min346348
Jun69.3%18.7 min296296
Jul73.4%18.5 min297298
AugFewer than 200 measured departures—124124
SepFewer than 200 measured departures—132132
Oct86.9%7.1 min290290
Nov86.1%4.9 min360360
Dec80.1%10.7 min376376

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% 2,879
  • Delayed >15 min 19.4% 697
  • Cancelled 0.2% 8
  • 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

45
45 of 45
Flight numbersBy direction DeparturesOn time
UA1451 DEN → JAX 269 85.9%
UA1485 DEN → JAX 186 86.6%
UA667 DEN → JAX 166 65.1%
UA671 JAX → DEN 165 90.9%
UA2172 DEN → JAX 133 89.5%
UA1384 JAX → DEN 132 90.9%
UA1770 JAX → DEN 108 76.9%
UA1593 JAX → DEN 102 79.4%
WN3614 DEN → JAX 100 65.7%
UA1100 DEN → JAX 71 85.9%
WN1644 DEN → JAX 64 65.6%
WN1705 JAX → DEN 64 78.1%
WN3233 JAX → DEN 61 75.4%
WN2557 DEN → JAX 60 70.0%
WN2053 JAX → DEN 58 82.8%
WN2176 DEN → JAX 58 71.9%
WN2500 JAX → DEN 58 86.2%
WN4862 DEN → JAX 58 84.5%
WN930 JAX → DEN 58 81.0%
WN951 DEN → JAX 58 53.5%
WN4384 DEN → JAX 57 56.1%
UA2748 JAX → DEN 56 73.2%
UA2104 JAX → DEN 53 67.9%
UA1356 DEN → JAX 52 82.7%
WN4766 JAX → DEN 52 98.0%
UA1762 JAX → DEN 51 82.0%
WN2478 DEN → JAX 50 82.0%
WN2520 JAX → DEN 42 88.1%
UA1264 DEN → JAX 37 81.1%
UA1283 DEN → JAX 37 91.9%
UA1682 JAX → DEN 37 97.3%
UA785 JAX → DEN 37 97.3%
UA1731 JAX → DEN 36 94.3%
UA2737 JAX → DEN 36 86.1%
UA1235 JAX → DEN 35 91.4%
WN1363 JAX → DEN 33 93.9%
WN2161 JAX → DEN 33 33.3%
WN2542 DEN → JAX 33 51.5%
WN3100 JAX → DEN 33 65.6%
WN3871 DEN → JAX 33 39.4%
UA2622 JAX → DEN 32 87.5%
UA1403 DEN → JAX 31 96.8%
UA2742 JAX → DEN 31 93.6%
WN3165 JAX → DEN 30 90.0%
WN3859 DEN → JAX 30 76.7%

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 173 +39.5% 1 71.1%
June 2026 170 +34.9% 0 67.6%
May 2026 182 +11.0% 0 80.2%
April 2026 182 +0.0% 0 80.2%
March 2026 189 −2.1% 1 73.5%
February 2026 153 +5.5% 1 83.0%
January 2026 176 +30.4% 0 90.3%
December 2025 190 +2.2% 0 74.7%
November 2025 182 +2.2% 0 91.2%
October 2025 184 +73.6% 0 86.4%
September 2025 132 0 85.6%
August 2025 124 0 81.5%
July 2025 124 0 76.6%
June 2025 126 0 71.4%
May 2025 164 2 74.4%
April 2025 182 0 81.9%
March 2025 193 1 85.5%
February 2025 145 0 86.9%
January 2025 135 2 74.1%
December 2024 186 0 85.5%
November 2024 178 0 80.9%
October 2024 106 0 87.7%

How to read this chart

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