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997 km · Domestic

Hartsfield Jackson Atlanta (ATL) – Harrisburg (MDT)

In July 2026, 216 flights operated between Hartsfield Jackson Atlanta and Harrisburg (both directions), and 74.5% 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
January112139▲ 24.1%
February154150▼ 2.6%
March172166▼ 3.5%
April172164▼ 4.7%
May173167▼ 3.5%
June165178▲ 7.9%
July175216▲ 23.4%
August165––
September162––
October176–in progress
November164––
December111––
Year to date (Jan–Jul)1,1231,180▲ 5.1%

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
January81.3%83.5%▲ 2.7%
February75.3%84.7%▲ 12.5%
March86.6%72.3%▼ 16.5%
April82.0%85.4%▲ 4.1%
May82.1%91.6%▲ 11.6%
June66.7%86.0%▲ 28.9%
July77.1%74.5%▼ 3.4%
August81.2%––
September88.3%––
October84.1%–in progress
November86.0%––
December80.2%––
Year-to-date average (Jan–Jul)78.7%82.6%▲ 4.9%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January712▲ 71.4%
February06–
March06–
April04–
May17▲ 600.0%
June40▼ 100.0%
July16▲ 500.0%
August3––
September0––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)1341▲ 215.4%

Airlines on this route

  1. Delta Air Lines 97.3%
  2. Endeavor Air 2.4%
  3. SkyWest Airlines 0.3%

Oct 1, 2024 – Jul 31, 2026

By direction

ATL → MDT

Scheduled flights
1,792
Flights operated
1,764
Cancelled
28 · 1.6%
On-time departures
81.6%

MDT → ATL

Scheduled flights
1,792
Flights operated
1,761
Cancelled
31 · 1.7%
On-time departures
82.6%

ATL → MDT and MDT → ATL counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 3,488 97.3% 82.1% 59
Endeavor Air 9E 87 2.4% 81.6% 0
SkyWest Airlines OO 9 0.3% 88.9% 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 delay06:00–07:003.1min · 638 recorded · 624 measured
Gap to highest-delay hour13.6min06:00 ↔ 18:00
Recorded flights3,584ATL–MDT

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 · 93.4% · 638 recorded · 624 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 19 recorded · 18 measured · Source: the US BTS 09:00 · 88.5% · 385 recorded · 382 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 133 recorded · 131 measured · Source: the US BTS 11:00 · 82.8% · 324 recorded · 320 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 179 recorded · 177 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 156 recorded · 153 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 57 recorded · 56 measured · Source: the US BTS 15:00 · 80.7% · 490 recorded · 482 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 40 recorded · 39 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 69 recorded · 68 measured · Source: the US BTS 18:00 · 73.0% · 422 recorded · 415 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 65 recorded · 64 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 65 recorded · 64 measured · Source: the US BTS 21:00 · 76.1% · 448 recorded · 440 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 93 recorded · 91 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · 3.1 min · 638 recorded · 624 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 19 recorded · 18 measured · Source: the US BTS 09:00 · 3.9 min · 385 recorded · 382 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 133 recorded · 131 measured · Source: the US BTS 11:00 · 11.3 min · 324 recorded · 320 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 179 recorded · 177 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 156 recorded · 153 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 57 recorded · 56 measured · Source: the US BTS 15:00 · 7.4 min · 490 recorded · 482 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 40 recorded · 39 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 69 recorded · 68 measured · Source: the US BTS 18:00 · 16.7 min · 422 recorded · 415 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 65 recorded · 64 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 65 recorded · 64 measured · Source: the US BTS 21:00 · 15.5 min · 448 recorded · 440 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 93 recorded · 91 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · 638 · 638 recorded · 624 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 19 · 19 recorded · 18 measured · Source: the US BTS 09:00 · 385 · 385 recorded · 382 measured · Source: the US BTS 10:00 · 133 · 133 recorded · 131 measured · Source: the US BTS 11:00 · 324 · 324 recorded · 320 measured · Source: the US BTS 12:00 · 179 · 179 recorded · 177 measured · Source: the US BTS 13:00 · 156 · 156 recorded · 153 measured · Source: the US BTS 14:00 · 57 · 57 recorded · 56 measured · Source: the US BTS 15:00 · 490 · 490 recorded · 482 measured · Source: the US BTS 16:00 · 40 · 40 recorded · 39 measured · Source: the US BTS 17:00 · 69 · 69 recorded · 68 measured · Source: the US BTS 18:00 · 422 · 422 recorded · 415 measured · Source: the US BTS 19:00 · 65 · 65 recorded · 64 measured · Source: the US BTS 20:00 · 65 · 65 recorded · 64 measured · Source: the US BTS 21:00 · 448 · 448 recorded · 440 measured · Source: the US BTS 22:00 · 93 · 93 recorded · 91 measured · Source: the US BTS 23:00 · 1 · 1 recorded · 1 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———
06:0093.4%3.1 min624638
07:00No observations———
08:00Fewer than 200 measured departures—1819
09:0088.5%3.9 min382385
10:00Fewer than 200 measured departures—131133
11:0082.8%11.3 min320324
12:00Fewer than 200 measured departures—177179
13:00Fewer than 200 measured departures—153156
14:00Fewer than 200 measured departures—5657
15:0080.7%7.4 min482490
16:00Fewer than 200 measured departures—3940
17:00Fewer than 200 measured departures—6869
18:0073.0%16.7 min415422
19:00Fewer than 200 measured departures—6465
20:00Fewer than 200 measured departures—6465
21:0076.1%15.5 min440448
22:00Fewer than 200 measured departures—9193
23:00Fewer than 200 measured departures—11

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 77.7% · 544 recorded · 537 measured · Source: the US BTS Tuesday · 85.0% · 542 recorded · 539 measured · Source: the US BTS Wednesday · 87.7% · 532 recorded · 528 measured · Source: the US BTS Thursday · 83.4% · 534 recorded · 530 measured · Source: the US BTS Friday · 79.8% · 536 recorded · 529 measured · Source: the US BTS Saturday · 85.1% · 376 recorded · 362 measured · Source: the US BTS Sunday · 76.8% · 520 recorded · 500 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 · 12.7 min · 544 recorded · 537 measured · Source: the US BTS Tuesday · 6.2 min · 542 recorded · 539 measured · Source: the US BTS Wednesday · 7.1 min · 532 recorded · 528 measured · Source: the US BTS Thursday · 8.9 min · 534 recorded · 530 measured · Source: the US BTS Friday · 11.7 min · 536 recorded · 529 measured · Source: the US BTS Saturday · 3.8 min · 376 recorded · 362 measured · Source: the US BTS Sunday · 16.3 min · 520 recorded · 500 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 · 544 · 544 recorded · 537 measured · Source: the US BTS Tuesday · 542 · 542 recorded · 539 measured · Source: the US BTS Wednesday · 532 · 532 recorded · 528 measured · Source: the US BTS Thursday · 534 · 534 recorded · 530 measured · Source: the US BTS Friday · 536 · 536 recorded · 529 measured · Source: the US BTS Saturday · 376 · 376 recorded · 362 measured · Source: the US BTS Sunday · 520 · 520 recorded · 500 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday77.7%12.7 min537544
Tuesday85.0%6.2 min539542
Wednesday87.7%7.1 min528532
Thursday83.4%8.9 min530534
Friday79.8%11.7 min529536
Saturday85.1%3.8 min362376
Sunday76.8%16.3 min500520

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 · 82.5% · 270 recorded · 251 measured · Source: the US BTS Feb · 79.9% · 310 recorded · 304 measured · Source: the US BTS Mar · 79.6% · 344 recorded · 338 measured · Source: the US BTS Apr · 83.6% · 340 recorded · 336 measured · Source: the US BTS May · 86.8% · 348 recorded · 340 measured · Source: the US BTS Jun · 76.7% · 347 recorded · 343 measured · Source: the US BTS Jul · 75.7% · 398 recorded · 391 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 168 recorded · 165 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 162 recorded · 162 measured · Source: the US BTS Oct · 88.6% · 280 recorded · 280 measured · Source: the US BTS Nov · 87.5% · 330 recorded · 328 measured · Source: the US BTS Dec · 79.4% · 287 recorded · 287 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 · 8.9 min · 270 recorded · 251 measured · Source: the US BTS Feb · 5.7 min · 310 recorded · 304 measured · Source: the US BTS Mar · 12.0 min · 344 recorded · 338 measured · Source: the US BTS Apr · 12.7 min · 340 recorded · 336 measured · Source: the US BTS May · 9.0 min · 348 recorded · 340 measured · Source: the US BTS Jun · 12.0 min · 347 recorded · 343 measured · Source: the US BTS Jul · 15.6 min · 398 recorded · 391 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 168 recorded · 165 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 162 recorded · 162 measured · Source: the US BTS Oct · 5.4 min · 280 recorded · 280 measured · Source: the US BTS Nov · 3.7 min · 330 recorded · 328 measured · Source: the US BTS Dec · 17.4 min · 287 recorded · 287 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 · 270 · 270 recorded · 251 measured · Source: the US BTS Feb · 310 · 310 recorded · 304 measured · Source: the US BTS Mar · 344 · 344 recorded · 338 measured · Source: the US BTS Apr · 340 · 340 recorded · 336 measured · Source: the US BTS May · 348 · 348 recorded · 340 measured · Source: the US BTS Jun · 347 · 347 recorded · 343 measured · Source: the US BTS Jul · 398 · 398 recorded · 391 measured · Source: the US BTS Aug · 168 · 168 recorded · 165 measured · Source: the US BTS Sep · 162 · 162 recorded · 162 measured · Source: the US BTS Oct · 280 · 280 recorded · 280 measured · Source: the US BTS Nov · 330 · 330 recorded · 328 measured · Source: the US BTS Dec · 287 · 287 recorded · 287 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan82.5%8.9 min251270
Feb79.9%5.7 min304310
Mar79.6%12.0 min338344
Apr83.6%12.7 min336340
May86.8%9.0 min340348
Jun76.7%12.0 min343347
Jul75.7%15.6 min391398
AugFewer than 200 measured departures—165168
SepFewer than 200 measured departures—162162
Oct88.6%5.4 min280280
Nov87.5%3.7 min328330
Dec79.4%17.4 min287287

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 80.7% 2,894
  • Delayed >15 min 17.6% 631
  • Cancelled 1.6% 59
  • 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
DL1255 MDT → ATL 627 93.6%
DL1248 ATL → MDT 545 87.9%
DL1248 MDT → ATL 543 81.7%
DL2857 ATL → MDT 457 80.0%
DL2857 MDT → ATL 457 71.8%
DL1283 ATL → MDT 431 80.6%
DL1055 ATL → MDT 194 72.8%
DL686 MDT → ATL 50 70.8%
DL686 ATL → MDT 50 83.3%
DL3172 MDT → ATL 39 79.0%
DL3172 ATL → MDT 39 71.8%

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 216 +23.4% 6 74.5%
June 2026 178 +7.9% 0 86.0%
May 2026 167 −3.5% 7 91.6%
April 2026 164 −4.7% 4 85.4%
March 2026 166 −3.5% 6 72.3%
February 2026 150 −2.6% 6 84.7%
January 2026 139 +24.1% 12 83.5%
December 2025 111 −36.9% 0 80.2%
November 2025 164 +0.0% 2 86.0%
October 2025 176 +69.2% 0 84.1%
September 2025 162 0 88.3%
August 2025 165 3 81.2%
July 2025 175 1 77.1%
June 2025 165 4 66.7%
May 2025 173 1 82.1%
April 2025 172 0 82.0%
March 2025 172 0 86.6%
February 2025 154 0 75.3%
January 2025 112 7 81.3%
December 2024 176 0 79.0%
November 2024 164 0 89.0%
October 2024 104 0 96.2%

How to read this chart

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