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1,903 km · Domestic

Hartsfield Jackson Atlanta (ATL) – City of Colorado Springs (COS)

In July 2026, 124 flights operated between Hartsfield Jackson Atlanta and City of Colorado Springs (both directions), and 71.8% 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
January5958▼ 1.7%
February56560.0%
March82101▲ 23.2%
April84110▲ 31.0%
May94116▲ 23.4%
June108120▲ 11.1%
July113124▲ 9.7%
August106––
September98––
October106–in progress
November100––
December63––
Year to date (Jan–Jul)596685▲ 14.9%

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
January69.5%72.4%▲ 4.2%
February80.4%85.7%▲ 6.6%
March85.4%80.2%▼ 6.1%
April85.7%80.9%▼ 5.6%
May91.5%85.3%▼ 6.8%
June71.3%90.8%▲ 27.3%
July74.3%71.8%▼ 3.4%
August84.9%––
September95.9%––
October93.4%–in progress
November87.0%––
December82.5%––
Year-to-date average (Jan–Jul)79.7%81.0%▲ 1.6%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January440.0%
February00–
March02–
April02–
May02–
June00–
July10▼ 100.0%
August2––
September0––
October2–in progress
November4––
December2––
Year to date (Jan–Jul)510▲ 100.0%

By direction

ATL → COS

Scheduled flights
1,008
Flights operated
996
Cancelled
12 · 1.2%
On-time departures
79.7%

COS → ATL

Scheduled flights
1,008
Flights operated
995
Cancelled
13 · 1.3%
On-time departures
86.9%

ATL → COS and COS → ATL counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 2,016 100.0% 83.3% 25

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 delay11:00–12:004.8min · 440 recorded · 433 measured
Gap to highest-delay hour8.9min11:00 ↔ 19:00
Recorded flights2,016ATL–COS

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 · 92.5% · 513 recorded · 507 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 85.9% · 440 recorded · 433 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 54 recorded · 54 measured · Source: the US BTS 13:00 · 82.7% · 421 recorded · 415 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 73 recorded · 72 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 15 recorded · 15 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 7 recorded · 7 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 75.2% · 423 recorded · 419 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 68 recorded · 67 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · 7.0 min · 513 recorded · 507 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 4.8 min · 440 recorded · 433 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 54 recorded · 54 measured · Source: the US BTS 13:00 · 8.9 min · 421 recorded · 415 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 73 recorded · 72 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 15 recorded · 15 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 7 recorded · 7 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 13.6 min · 423 recorded · 419 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 68 recorded · 67 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 513 · 513 recorded · 507 measured · Source: the US BTS 07:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 440 · 440 recorded · 433 measured · Source: the US BTS 12:00 · 54 · 54 recorded · 54 measured · Source: the US BTS 13:00 · 421 · 421 recorded · 415 measured · Source: the US BTS 14:00 · 73 · 73 recorded · 72 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · 15 · 15 recorded · 15 measured · Source: the US BTS 17:00 · 7 · 7 recorded · 7 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 423 · 423 recorded · 419 measured · Source: the US BTS 20:00 · 68 · 68 recorded · 67 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · 1 · 1 recorded · 1 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———
06:0092.5%7.0 min507513
07:00Fewer than 200 measured departures—11
08:00No observations———
09:00No observations———
10:00No observations———
11:0085.9%4.8 min433440
12:00Fewer than 200 measured departures—5454
13:0082.7%8.9 min415421
14:00Fewer than 200 measured departures—7273
15:00No observations———
16:00Fewer than 200 measured departures—1515
17:00Fewer than 200 measured departures—77
18:00No observations———
19:0075.2%13.6 min419423
20:00Fewer than 200 measured departures—6768
21:00No observations———
22:00Fewer than 200 measured departures—11
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 80.5% · 301 recorded · 298 measured · Source: the US BTS Tuesday · 87.5% · 274 recorded · 272 measured · Source: the US BTS Wednesday · 86.1% · 274 recorded · 274 measured · Source: the US BTS Thursday · 87.6% · 309 recorded · 306 measured · Source: the US BTS Friday · 86.3% · 312 recorded · 306 measured · Source: the US BTS Saturday · 83.2% · 228 recorded · 220 measured · Source: the US BTS Sunday · 73.0% · 318 recorded · 315 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 · 14.0 min · 301 recorded · 298 measured · Source: the US BTS Tuesday · 8.0 min · 274 recorded · 272 measured · Source: the US BTS Wednesday · 4.8 min · 274 recorded · 274 measured · Source: the US BTS Thursday · 5.9 min · 309 recorded · 306 measured · Source: the US BTS Friday · 4.2 min · 312 recorded · 306 measured · Source: the US BTS Saturday · 7.6 min · 228 recorded · 220 measured · Source: the US BTS Sunday · 17.1 min · 318 recorded · 315 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 · 301 · 301 recorded · 298 measured · Source: the US BTS Tuesday · 274 · 274 recorded · 272 measured · Source: the US BTS Wednesday · 274 · 274 recorded · 274 measured · Source: the US BTS Thursday · 309 · 309 recorded · 306 measured · Source: the US BTS Friday · 312 · 312 recorded · 306 measured · Source: the US BTS Saturday · 228 · 228 recorded · 220 measured · Source: the US BTS Sunday · 318 · 318 recorded · 315 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday80.5%14.0 min298301
Tuesday87.5%8.0 min272274
Wednesday86.1%4.8 min274274
Thursday87.6%5.9 min306309
Friday86.3%4.2 min306312
Saturday83.2%7.6 min220228
Sunday73.0%17.1 min315318

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 · Fewer than 200 measured departures · 125 recorded · 117 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 112 recorded · 112 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 185 recorded · 183 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 196 recorded · 194 measured · Source: the US BTS May · 88.1% · 212 recorded · 210 measured · Source: the US BTS Jun · 81.6% · 228 recorded · 228 measured · Source: the US BTS Jul · 73.0% · 238 recorded · 237 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 108 recorded · 106 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 98 recorded · 98 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 174 recorded · 172 measured · Source: the US BTS Nov · 86.3% · 208 recorded · 204 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 132 recorded · 130 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 · Fewer than 200 measured departures · 125 recorded · 117 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 112 recorded · 112 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 185 recorded · 183 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 196 recorded · 194 measured · Source: the US BTS May · 7.2 min · 212 recorded · 210 measured · Source: the US BTS Jun · 9.5 min · 228 recorded · 228 measured · Source: the US BTS Jul · 14.9 min · 238 recorded · 237 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 108 recorded · 106 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 98 recorded · 98 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 174 recorded · 172 measured · Source: the US BTS Nov · 5.7 min · 208 recorded · 204 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 132 recorded · 130 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 · 125 · 125 recorded · 117 measured · Source: the US BTS Feb · 112 · 112 recorded · 112 measured · Source: the US BTS Mar · 185 · 185 recorded · 183 measured · Source: the US BTS Apr · 196 · 196 recorded · 194 measured · Source: the US BTS May · 212 · 212 recorded · 210 measured · Source: the US BTS Jun · 228 · 228 recorded · 228 measured · Source: the US BTS Jul · 238 · 238 recorded · 237 measured · Source: the US BTS Aug · 108 · 108 recorded · 106 measured · Source: the US BTS Sep · 98 · 98 recorded · 98 measured · Source: the US BTS Oct · 174 · 174 recorded · 172 measured · Source: the US BTS Nov · 208 · 208 recorded · 204 measured · Source: the US BTS Dec · 132 · 132 recorded · 130 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—117125
FebFewer than 200 measured departures—112112
MarFewer than 200 measured departures—183185
AprFewer than 200 measured departures—194196
May88.1%7.2 min210212
Jun81.6%9.5 min228228
Jul73.0%14.9 min237238
AugFewer than 200 measured departures—106108
SepFewer than 200 measured departures—9898
OctFewer than 200 measured departures—172174
Nov86.3%5.7 min204208
DecFewer than 200 measured departures—130132

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% 1,659
  • Delayed >15 min 16.5% 332
  • Cancelled 1.2% 25
  • 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

11
11 of 11
Flight numbersBy direction DeparturesOn time
DL1507 ATL → COS 367 75.5%
DL2427 ATL → COS 239 83.8%
DL2427 COS → ATL 239 80.0%
DL1634 COS → ATL 206 90.7%
DL1182 ATL → COS 167 87.9%
DL1182 COS → ATL 167 84.2%
DL1214 COS → ATL 163 93.8%
DL971 ATL → COS 146 72.4%
DL1074 COS → ATL 145 93.8%
DL1006 ATL → COS 88 83.9%
DL1006 COS → ATL 88 78.2%

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 124 +9.7% 0 71.8%
June 2026 120 +11.1% 0 90.8%
May 2026 116 +23.4% 2 85.3%
April 2026 110 +31.0% 2 80.9%
March 2026 101 +23.2% 2 80.2%
February 2026 56 +0.0% 0 85.7%
January 2026 58 −1.7% 4 72.4%
December 2025 63 −6.0% 2 82.5%
November 2025 100 −3.8% 4 87.0%
October 2025 106 +60.6% 2 93.4%
September 2025 98 0 95.9%
August 2025 106 2 84.9%
July 2025 113 1 74.3%
June 2025 108 0 71.3%
May 2025 94 0 91.5%
April 2025 84 0 85.7%
March 2025 82 0 85.4%
February 2025 56 0 80.4%
January 2025 59 4 69.5%
December 2024 67 0 91.0%
November 2024 104 0 85.6%
October 2024 66 0 83.3%

How to read this chart

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