1,927 km · Domestic

Hartsfield Jackson Atlanta (ATL) – Denver (DEN)

In July 2026, 1,048 flights operated between Hartsfield Jackson Atlanta and Denver (both directions), and 70.2% left on time, according to the US BTS.

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
January846839▼ 0.8%
February789819▲ 3.8%
March889893▲ 0.4%
April891882▼ 1.0%
May954957▲ 0.3%
June1,0041,028▲ 2.4%
July1,0431,048▲ 0.5%
August982––
September899––
October948–in progress
November887––
December903––
Year to date (Jan–Jul)6,4166,466▲ 0.8%

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
January75.7%82.4%▲ 8.9%
February76.2%81.6%▲ 7.1%
March81.4%76.4%▼ 6.1%
April74.2%81.7%▲ 10.1%
May70.0%74.9%▲ 7.0%
June69.1%77.7%▲ 12.4%
July69.2%70.2%▲ 1.4%
August76.9%––
September85.2%––
October82.6%–in progress
November85.7%––
December68.9%––
Year-to-date average (Jan–Jul)73.7%77.8%▲ 5.6%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January3521▼ 40.0%
February03–
March426▲ 550.0%
April42▼ 50.0%
May38▲ 166.7%
June103▼ 70.0%
July815▲ 87.5%
August8––
September1––
October0–in progress
November12––
December13––
Year to date (Jan–Jul)6478▲ 21.9%

Airlines on this route

  1. Delta Air Lines 49.5%
  2. Southwest Airlines 20.2%
  3. United Airlines 17.6%
  4. Frontier Airlines 12.7%

Oct 1, 2024 – Jul 31, 2026

By direction

ATL → DEN

Scheduled flights
10,113
Flights operated
10,015
Cancelled
98 · 1.0%
On-time departures
77.5%

DEN → ATL

Scheduled flights
10,106
Flights operated
10,024
Cancelled
82 · 0.8%
On-time departures
77.5%

ATL → DEN and DEN → ATL counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 10,015 49.5% 81.1% 97
Southwest Airlines WN 4,076 20.2% 68.5% 35
United Airlines UA 3,568 17.6% 84.3% 19
Frontier Airlines F9 2,560 12.7% 68.2% 29

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 delay06:00–07:003.4min · 1,062 recorded · 1,050 measured
Gap to highest-delay hour32.1min06:00 ↔ 19:00
Recorded flights20,219ATL–DEN

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · 82.0% · 690 recorded · 683 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 · 92.0% · 366 recorded · 362 measured · Source: the US BTS 06:00 · 92.4% · 1,062 recorded · 1,050 measured · Source: the US BTS 07:00 · 86.9% · 1,541 recorded · 1,524 measured · Source: the US BTS 08:00 · 91.5% · 977 recorded · 965 measured · Source: the US BTS 09:00 · 85.4% · 1,196 recorded · 1,190 measured · Source: the US BTS 10:00 · 80.2% · 1,912 recorded · 1,893 measured · Source: the US BTS 11:00 · 84.4% · 1,199 recorded · 1,192 measured · Source: the US BTS 12:00 · 79.3% · 1,325 recorded · 1,320 measured · Source: the US BTS 13:00 · 78.7% · 2,016 recorded · 2,002 measured · Source: the US BTS 14:00 · 71.7% · 1,016 recorded · 1,007 measured · Source: the US BTS 15:00 · 72.3% · 708 recorded · 705 measured · Source: the US BTS 16:00 · 73.4% · 1,860 recorded · 1,846 measured · Source: the US BTS 17:00 · 66.2% · 924 recorded · 920 measured · Source: the US BTS 18:00 · 61.2% · 958 recorded · 948 measured · Source: the US BTS 19:00 · 50.7% · 668 recorded · 663 measured · Source: the US BTS 20:00 · 61.2% · 597 recorded · 590 measured · Source: the US BTS 21:00 · 70.4% · 466 recorded · 460 measured · Source: the US BTS 22:00 · 75.6% · 403 recorded · 390 measured · Source: the US BTS 23:00 · 62.0% · 335 recorded · 329 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 · 6.2 min · 690 recorded · 683 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 · 8.9 min · 366 recorded · 362 measured · Source: the US BTS 06:00 · 3.4 min · 1,062 recorded · 1,050 measured · Source: the US BTS 07:00 · 10.7 min · 1,541 recorded · 1,524 measured · Source: the US BTS 08:00 · 5.0 min · 977 recorded · 965 measured · Source: the US BTS 09:00 · 6.9 min · 1,196 recorded · 1,190 measured · Source: the US BTS 10:00 · 11.2 min · 1,912 recorded · 1,893 measured · Source: the US BTS 11:00 · 7.2 min · 1,199 recorded · 1,192 measured · Source: the US BTS 12:00 · 10.4 min · 1,325 recorded · 1,320 measured · Source: the US BTS 13:00 · 11.3 min · 2,016 recorded · 2,002 measured · Source: the US BTS 14:00 · 14.5 min · 1,016 recorded · 1,007 measured · Source: the US BTS 15:00 · 16.7 min · 708 recorded · 705 measured · Source: the US BTS 16:00 · 18.0 min · 1,860 recorded · 1,846 measured · Source: the US BTS 17:00 · 24.4 min · 924 recorded · 920 measured · Source: the US BTS 18:00 · 23.5 min · 958 recorded · 948 measured · Source: the US BTS 19:00 · 35.5 min · 668 recorded · 663 measured · Source: the US BTS 20:00 · 25.6 min · 597 recorded · 590 measured · Source: the US BTS 21:00 · 21.5 min · 466 recorded · 460 measured · Source: the US BTS 22:00 · 16.0 min · 403 recorded · 390 measured · Source: the US BTS 23:00 · 22.9 min · 335 recorded · 329 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 · 690 · 690 recorded · 683 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 · 366 · 366 recorded · 362 measured · Source: the US BTS 06:00 · 1,062 · 1,062 recorded · 1,050 measured · Source: the US BTS 07:00 · 1,541 · 1,541 recorded · 1,524 measured · Source: the US BTS 08:00 · 977 · 977 recorded · 965 measured · Source: the US BTS 09:00 · 1,196 · 1,196 recorded · 1,190 measured · Source: the US BTS 10:00 · 1,912 · 1,912 recorded · 1,893 measured · Source: the US BTS 11:00 · 1,199 · 1,199 recorded · 1,192 measured · Source: the US BTS 12:00 · 1,325 · 1,325 recorded · 1,320 measured · Source: the US BTS 13:00 · 2,016 · 2,016 recorded · 2,002 measured · Source: the US BTS 14:00 · 1,016 · 1,016 recorded · 1,007 measured · Source: the US BTS 15:00 · 708 · 708 recorded · 705 measured · Source: the US BTS 16:00 · 1,860 · 1,860 recorded · 1,846 measured · Source: the US BTS 17:00 · 924 · 924 recorded · 920 measured · Source: the US BTS 18:00 · 958 · 958 recorded · 948 measured · Source: the US BTS 19:00 · 668 · 668 recorded · 663 measured · Source: the US BTS 20:00 · 597 · 597 recorded · 590 measured · Source: the US BTS 21:00 · 466 · 466 recorded · 460 measured · Source: the US BTS 22:00 · 403 · 403 recorded · 390 measured · Source: the US BTS 23:00 · 335 · 335 recorded · 329 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:0082.0%6.2 min683690
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0092.0%8.9 min362366
06:0092.4%3.4 min1,0501,062
07:0086.9%10.7 min1,5241,541
08:0091.5%5.0 min965977
09:0085.4%6.9 min1,1901,196
10:0080.2%11.2 min1,8931,912
11:0084.4%7.2 min1,1921,199
12:0079.3%10.4 min1,3201,325
13:0078.7%11.3 min2,0022,016
14:0071.7%14.5 min1,0071,016
15:0072.3%16.7 min705708
16:0073.4%18.0 min1,8461,860
17:0066.2%24.4 min920924
18:0061.2%23.5 min948958
19:0050.7%35.5 min663668
20:0061.2%25.6 min590597
21:0070.4%21.5 min460466
22:0075.6%16.0 min390403
23:0062.0%22.9 min329335

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 75.5% · 2,987 recorded · 2,973 measured · Source: the US BTS Tuesday · 80.2% · 2,857 recorded · 2,844 measured · Source: the US BTS Wednesday · 82.6% · 2,788 recorded · 2,776 measured · Source: the US BTS Thursday · 76.9% · 2,949 recorded · 2,938 measured · Source: the US BTS Friday · 76.5% · 3,005 recorded · 2,948 measured · Source: the US BTS Saturday · 76.9% · 2,665 recorded · 2,624 measured · Source: the US BTS Sunday · 74.1% · 2,968 recorded · 2,936 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 · 15.3 min · 2,987 recorded · 2,973 measured · Source: the US BTS Tuesday · 11.5 min · 2,857 recorded · 2,844 measured · Source: the US BTS Wednesday · 9.4 min · 2,788 recorded · 2,776 measured · Source: the US BTS Thursday · 13.7 min · 2,949 recorded · 2,938 measured · Source: the US BTS Friday · 13.7 min · 3,005 recorded · 2,948 measured · Source: the US BTS Saturday · 13.5 min · 2,665 recorded · 2,624 measured · Source: the US BTS Sunday · 18.0 min · 2,968 recorded · 2,936 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 · 2,987 · 2,987 recorded · 2,973 measured · Source: the US BTS Tuesday · 2,857 · 2,857 recorded · 2,844 measured · Source: the US BTS Wednesday · 2,788 · 2,788 recorded · 2,776 measured · Source: the US BTS Thursday · 2,949 · 2,949 recorded · 2,938 measured · Source: the US BTS Friday · 3,005 · 3,005 recorded · 2,948 measured · Source: the US BTS Saturday · 2,665 · 2,665 recorded · 2,624 measured · Source: the US BTS Sunday · 2,968 · 2,968 recorded · 2,936 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday75.5%15.3 min2,9732,987
Tuesday80.2%11.5 min2,8442,857
Wednesday82.6%9.4 min2,7762,788
Thursday76.9%13.7 min2,9382,949
Friday76.5%13.7 min2,9483,005
Saturday76.9%13.5 min2,6242,665
Sunday74.1%18.0 min2,9362,968

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 · 79.0% · 1,741 recorded · 1,685 measured · Source: the US BTS Feb · 78.9% · 1,611 recorded · 1,608 measured · Source: the US BTS Mar · 78.9% · 1,812 recorded · 1,782 measured · Source: the US BTS Apr · 78.0% · 1,779 recorded · 1,773 measured · Source: the US BTS May · 72.5% · 1,922 recorded · 1,911 measured · Source: the US BTS Jun · 73.5% · 2,045 recorded · 2,032 measured · Source: the US BTS Jul · 69.7% · 2,114 recorded · 2,091 measured · Source: the US BTS Aug · 76.9% · 990 recorded · 982 measured · Source: the US BTS Sep · 85.2% · 900 recorded · 899 measured · Source: the US BTS Oct · 83.3% · 1,586 recorded · 1,585 measured · Source: the US BTS Nov · 86.1% · 1,829 recorded · 1,814 measured · Source: the US BTS Dec · 74.7% · 1,890 recorded · 1,877 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
Jan · 13.2 min · 1,741 recorded · 1,685 measured · Source: the US BTS Feb · 12.3 min · 1,611 recorded · 1,608 measured · Source: the US BTS Mar · 11.6 min · 1,812 recorded · 1,782 measured · Source: the US BTS Apr · 12.9 min · 1,779 recorded · 1,773 measured · Source: the US BTS May · 17.8 min · 1,922 recorded · 1,911 measured · Source: the US BTS Jun · 18.2 min · 2,045 recorded · 2,032 measured · Source: the US BTS Jul · 20.7 min · 2,114 recorded · 2,091 measured · Source: the US BTS Aug · 14.4 min · 990 recorded · 982 measured · Source: the US BTS Sep · 6.1 min · 900 recorded · 899 measured · Source: the US BTS Oct · 7.6 min · 1,586 recorded · 1,585 measured · Source: the US BTS Nov · 6.4 min · 1,829 recorded · 1,814 measured · Source: the US BTS Dec · 15.8 min · 1,890 recorded · 1,877 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 · 1,741 · 1,741 recorded · 1,685 measured · Source: the US BTS Feb · 1,611 · 1,611 recorded · 1,608 measured · Source: the US BTS Mar · 1,812 · 1,812 recorded · 1,782 measured · Source: the US BTS Apr · 1,779 · 1,779 recorded · 1,773 measured · Source: the US BTS May · 1,922 · 1,922 recorded · 1,911 measured · Source: the US BTS Jun · 2,045 · 2,045 recorded · 2,032 measured · Source: the US BTS Jul · 2,114 · 2,114 recorded · 2,091 measured · Source: the US BTS Aug · 990 · 990 recorded · 982 measured · Source: the US BTS Sep · 900 · 900 recorded · 899 measured · Source: the US BTS Oct · 1,586 · 1,586 recorded · 1,585 measured · Source: the US BTS Nov · 1,829 · 1,829 recorded · 1,814 measured · Source: the US BTS Dec · 1,890 · 1,890 recorded · 1,877 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan79.0%13.2 min1,6851,741
Feb78.9%12.3 min1,6081,611
Mar78.9%11.6 min1,7821,812
Apr78.0%12.9 min1,7731,779
May72.5%17.8 min1,9111,922
Jun73.5%18.2 min2,0322,045
Jul69.7%20.7 min2,0912,114
Aug76.9%14.4 min982990
Sep85.2%6.1 min899900
Oct83.3%7.6 min1,5851,586
Nov86.1%6.4 min1,8141,829
Dec74.7%15.8 min1,8771,890

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 76.8% 15,528
  • Delayed >15 min 22.3% 4,511
  • Cancelled 0.9% 180
  • 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

117
117 of 117
Flight numbersBy direction DeparturesOn time
DL341 DEN → ATL 658 93.5%
DL431 DEN → ATL 658 90.0%
DL519 ATL → DEN 658 72.8%
UA235 ATL → DEN 653 81.7%
DL746 ATL → DEN 646 68.6%
UA1305 DEN → ATL 610 73.7%
F993293 ATL → DEN 603 72.3%
DL530 ATL → DEN 575 82.5%
DL995 DEN → ATL 556 78.4%
DL706 ATL → DEN 553 86.2%
F993294 DEN → ATL 551 74.0%
DL346 DEN → ATL 514 78.2%
UA340 ATL → DEN 509 91.3%
DL493 ATL → DEN 505 72.6%
DL840 DEN → ATL 487 72.8%
DL956 ATL → DEN 448 76.9%
F993600 DEN → ATL 428 73.0%
UA1327 ATL → DEN 419 87.8%
F991449 ATL → DEN 410 56.3%
DL995 ATL → DEN 408 84.8%
DL957 DEN → ATL 397 78.8%
UA2415 DEN → ATL 355 88.5%
DL2235 DEN → ATL 337 87.8%
DL346 ATL → DEN 322 91.8%
F991450 DEN → ATL 299 67.4%
UA1671 DEN → ATL 289 82.3%
DL302 DEN → ATL 275 86.7%
DL706 DEN → ATL 269 76.9%
F993599 ATL → DEN 256 57.0%
DL2235 ATL → DEN 248 93.5%
UA2424 DEN → ATL 226 85.3%
DL396 DEN → ATL 147 73.8%
DL957 ATL → DEN 145 82.8%
DL1675 ATL → DEN 136 83.6%
DL1035 DEN → ATL 131 80.9%
DL530 DEN → ATL 122 75.2%
WN1668 ATL → DEN 120 93.2%
WN1123 DEN → ATL 105 68.9%
WN979 DEN → ATL 103 71.6%
DL396 ATL → DEN 96 79.8%
DL840 ATL → DEN 91 83.5%
DL2181 ATL → DEN 90 82.2%
UA221 ATL → DEN 89 88.8%
WN339 DEN → ATL 83 89.0%
DL519 DEN → ATL 78 65.8%
WN760 ATL → DEN 73 72.2%
DL704 DEN → ATL 67 86.6%
WN2451 ATL → DEN 64 79.0%
UA604 DEN → ATL 62 80.3%
WN2467 DEN → ATL 61 39.3%
WN3400 DEN → ATL 61 71.7%
WN1519 DEN → ATL 59 93.2%
WN365 ATL → DEN 59 65.5%
WN1249 ATL → DEN 58 27.6%
WN1472 DEN → ATL 58 5.2%
WN202 ATL → DEN 58 75.9%
WN203 ATL → DEN 58 85.7%
WN2258 DEN → ATL 58 69.0%
WN2404 DEN → ATL 58 53.5%
WN2647 ATL → DEN 58 96.6%
WN3002 ATL → DEN 58 29.3%
WN3237 DEN → ATL 58 69.0%
WN3711 DEN → ATL 58 46.6%
WN3745 DEN → ATL 58 37.9%
WN371 ATL → DEN 57 79.0%
WN374 ATL → DEN 57 68.4%
WN204 ATL → DEN 56 84.9%
DL824 DEN → ATL 55 70.4%
DL399 DEN → ATL 52 100.0%
WN3873 DEN → ATL 52 69.2%
WN1521 ATL → DEN 51 66.7%
WN2925 ATL → DEN 51 88.0%
WN1777 DEN → ATL 50 54.0%
WN2325 ATL → DEN 50 84.0%
WN432 DEN → ATL 50 66.0%
WN2615 DEN → ATL 49 83.7%
WN1722 DEN → ATL 47 69.6%
WN3139 DEN → ATL 47 87.0%
WN3206 DEN → ATL 47 63.0%
UA2131 DEN → ATL 46 93.5%
WN2797 DEN → ATL 46 79.6%
WN3130 DEN → ATL 46 52.2%
WN367 ATL → DEN 46 81.4%
WN376 ATL → DEN 44 79.6%
WN2114 ATL → DEN 42 100.0%
WN377 ATL → DEN 42 39.0%
WN543 ATL → DEN 42 50.0%
WN700 ATL → DEN 42 81.0%
WN1888 ATL → DEN 40 87.2%
DL488 ATL → DEN 38 94.4%
UA2476 DEN → ATL 38 100.0%
UA262 DEN → ATL 37 88.6%
UA2082 ATL → DEN 36 86.1%
WN2199 ATL → DEN 36 80.6%
WN2643 ATL → DEN 36 80.6%
UA1183 DEN → ATL 35 82.9%
DL2781 DEN → ATL 34 73.5%
WN2591 DEN → ATL 34 85.3%
WN1228 ATL → DEN 33 66.7%
WN1752 DEN → ATL 33 51.5%
WN1755 ATL → DEN 33 100.0%
WN1767 DEN → ATL 33 90.9%
WN3099 DEN → ATL 33 69.7%
WN3369 ATL → DEN 33 78.8%
WN4548 ATL → DEN 33 65.6%
DL623 DEN → ATL 32 81.3%
UA1273 ATL → DEN 32 93.8%
WN1881 DEN → ATL 32 46.9%
DL564 DEN → ATL 31 77.4%
UA1974 DEN → ATL 31 80.0%
WN2418 DEN → ATL 31 29.0%
WN363 DEN → ATL 31 93.6%
WN407 ATL → DEN 31 74.2%
DL724 DEN → ATL 30 76.7%
UA1378 ATL → DEN 30 90.0%
WN2855 DEN → ATL 30 70.0%
WN4054 ATL → DEN 30 90.0%

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 1,048 +0.5% 15 70.2%
June 2026 1,028 +2.4% 3 77.7%
May 2026 957 +0.3% 8 74.9%
April 2026 882 −1.0% 2 81.7%
March 2026 893 +0.4% 26 76.4%
February 2026 819 +3.8% 3 81.6%
January 2026 839 −0.8% 21 82.4%
December 2025 903 −7.3% 13 68.9%
November 2025 887 −4.3% 12 85.7%
October 2025 948 +48.8% 0 82.6%
September 2025 899 1 85.2%
August 2025 982 8 76.9%
July 2025 1,043 8 69.2%
June 2025 1,004 10 69.1%
May 2025 954 3 70.0%
April 2025 891 4 74.2%
March 2025 889 4 81.4%
February 2025 789 0 76.2%
January 2025 846 35 75.7%
December 2024 974 0 80.1%
November 2024 927 3 86.4%
October 2024 637 1 84.3%

How to read this chart

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