Aviation Data
EN
EnglishTiếng Việt

518 km · Domestic

Hartsfield Jackson Atlanta (ATL) – Louisville Muhammad Ali (SDF)

In July 2026, 478 flights operated between Hartsfield Jackson Atlanta and Louisville Muhammad Ali (both directions), and 77.6% 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
January396368▼ 7.1%
February407387▼ 4.9%
March477440▼ 7.8%
April437473▲ 8.2%
May508518▲ 2.0%
June466470▲ 0.9%
July457478▲ 4.6%
August479––
September444––
October459–in progress
November419––
December416––
Year to date (Jan–Jul)3,1483,134▼ 0.4%

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
January85.9%84.5%▼ 1.6%
February83.3%85.3%▲ 2.4%
March87.4%82.0%▼ 6.2%
April86.5%90.7%▲ 4.9%
May79.3%86.7%▲ 9.3%
June74.2%87.2%▲ 17.5%
July84.5%77.6%▼ 8.2%
August87.9%––
September95.5%––
October91.1%–in progress
November83.3%––
December83.2%––
Year-to-date average (Jan–Jul)83.0%84.9%▲ 2.2%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January2414▼ 41.7%
February12▲ 100.0%
March122▲ 2,100.0%
April67▲ 16.7%
May08–
June162▼ 87.5%
July32▼ 33.3%
August3––
September0––
October0–in progress
November8––
December15––
Year to date (Jan–Jul)5157▲ 11.8%

Airlines on this route

  1. Delta Air Lines 95.7%
  2. Southwest Airlines 3.3%
  3. SkyWest Airlines 0.6%
  4. Spirit Airlines 0.4%

Oct 1, 2024 – Jul 31, 2026

By direction

ATL → SDF

Scheduled flights
4,937
Flights operated
4,871
Cancelled
66 · 1.3%
On-time departures
83.6%

SDF → ATL

Scheduled flights
4,937
Flights operated
4,869
Cancelled
68 · 1.4%
On-time departures
87.7%

ATL → SDF and SDF → ATL counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 9,446 95.7% 85.7% 128
Southwest Airlines WN 328 3.3% 90.7% 6
SkyWest Airlines OO 64 0.6% 65.6% 0
Spirit Airlines NK 36 0.4% 75.0% 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 delay06:00–07:00-2.4min · 609 recorded · 600 measured
Gap to highest-delay hour17.0min06:00 ↔ 18:00
Recorded flights9,874ATL–SDF

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 · 50 recorded · 48 measured · Source: the US BTS 06:00 · 94.7% · 609 recorded · 600 measured · Source: the US BTS 07:00 · 91.9% · 756 recorded · 740 measured · Source: the US BTS 08:00 · 91.0% · 1,148 recorded · 1,137 measured · Source: the US BTS 09:00 · 90.3% · 274 recorded · 268 measured · Source: the US BTS 10:00 · 88.3% · 1,061 recorded · 1,043 measured · Source: the US BTS 11:00 · 89.6% · 271 recorded · 269 measured · Source: the US BTS 12:00 · 87.5% · 716 recorded · 706 measured · Source: the US BTS 13:00 · 83.9% · 500 recorded · 497 measured · Source: the US BTS 14:00 · 82.4% · 363 recorded · 357 measured · Source: the US BTS 15:00 · 82.7% · 876 recorded · 869 measured · Source: the US BTS 16:00 · 77.8% · 316 recorded · 311 measured · Source: the US BTS 17:00 · 79.7% · 847 recorded · 839 measured · Source: the US BTS 18:00 · 77.6% · 281 recorded · 277 measured · Source: the US BTS 19:00 · 77.6% · 507 recorded · 500 measured · Source: the US BTS 20:00 · 80.0% · 368 recorded · 364 measured · Source: the US BTS 21:00 · 79.1% · 266 recorded · 263 measured · Source: the US BTS 22:00 · 86.7% · 537 recorded · 527 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 128 recorded · 125 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 · 50 recorded · 48 measured · Source: the US BTS 06:00 · -2.4 min · 609 recorded · 600 measured · Source: the US BTS 07:00 · 4.8 min · 756 recorded · 740 measured · Source: the US BTS 08:00 · 3.2 min · 1,148 recorded · 1,137 measured · Source: the US BTS 09:00 · 0.3 min · 274 recorded · 268 measured · Source: the US BTS 10:00 · 1.8 min · 1,061 recorded · 1,043 measured · Source: the US BTS 11:00 · 0.5 min · 271 recorded · 269 measured · Source: the US BTS 12:00 · 3.5 min · 716 recorded · 706 measured · Source: the US BTS 13:00 · 6.1 min · 500 recorded · 497 measured · Source: the US BTS 14:00 · 7.5 min · 363 recorded · 357 measured · Source: the US BTS 15:00 · 7.6 min · 876 recorded · 869 measured · Source: the US BTS 16:00 · 11.5 min · 316 recorded · 311 measured · Source: the US BTS 17:00 · 11.6 min · 847 recorded · 839 measured · Source: the US BTS 18:00 · 14.6 min · 281 recorded · 277 measured · Source: the US BTS 19:00 · 11.5 min · 507 recorded · 500 measured · Source: the US BTS 20:00 · 8.8 min · 368 recorded · 364 measured · Source: the US BTS 21:00 · 13.2 min · 266 recorded · 263 measured · Source: the US BTS 22:00 · 5.4 min · 537 recorded · 527 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 128 recorded · 125 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 · 50 · 50 recorded · 48 measured · Source: the US BTS 06:00 · 609 · 609 recorded · 600 measured · Source: the US BTS 07:00 · 756 · 756 recorded · 740 measured · Source: the US BTS 08:00 · 1,148 · 1,148 recorded · 1,137 measured · Source: the US BTS 09:00 · 274 · 274 recorded · 268 measured · Source: the US BTS 10:00 · 1,061 · 1,061 recorded · 1,043 measured · Source: the US BTS 11:00 · 271 · 271 recorded · 269 measured · Source: the US BTS 12:00 · 716 · 716 recorded · 706 measured · Source: the US BTS 13:00 · 500 · 500 recorded · 497 measured · Source: the US BTS 14:00 · 363 · 363 recorded · 357 measured · Source: the US BTS 15:00 · 876 · 876 recorded · 869 measured · Source: the US BTS 16:00 · 316 · 316 recorded · 311 measured · Source: the US BTS 17:00 · 847 · 847 recorded · 839 measured · Source: the US BTS 18:00 · 281 · 281 recorded · 277 measured · Source: the US BTS 19:00 · 507 · 507 recorded · 500 measured · Source: the US BTS 20:00 · 368 · 368 recorded · 364 measured · Source: the US BTS 21:00 · 266 · 266 recorded · 263 measured · Source: the US BTS 22:00 · 537 · 537 recorded · 527 measured · Source: the US BTS 23:00 · 128 · 128 recorded · 125 measured · Source: the US BTS

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

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—4850
06:0094.7%-2.4 min600609
07:0091.9%4.8 min740756
08:0091.0%3.2 min1,1371,148
09:0090.3%0.3 min268274
10:0088.3%1.8 min1,0431,061
11:0089.6%0.5 min269271
12:0087.5%3.5 min706716
13:0083.9%6.1 min497500
14:0082.4%7.5 min357363
15:0082.7%7.6 min869876
16:0077.8%11.5 min311316
17:0079.7%11.6 min839847
18:0077.6%14.6 min277281
19:0077.6%11.5 min500507
20:0080.0%8.8 min364368
21:0079.1%13.2 min263266
22:0086.7%5.4 min527537
23:00Fewer than 200 measured departures—125128

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 83.3% · 1,499 recorded · 1,479 measured · Source: the US BTS Tuesday · 88.1% · 1,372 recorded · 1,360 measured · Source: the US BTS Wednesday · 89.7% · 1,367 recorded · 1,362 measured · Source: the US BTS Thursday · 88.0% · 1,463 recorded · 1,461 measured · Source: the US BTS Friday · 86.8% · 1,485 recorded · 1,461 measured · Source: the US BTS Saturday · 84.9% · 1,228 recorded · 1,200 measured · Source: the US BTS Sunday · 79.0% · 1,460 recorded · 1,417 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 · 8.3 min · 1,499 recorded · 1,479 measured · Source: the US BTS Tuesday · 4.1 min · 1,372 recorded · 1,360 measured · Source: the US BTS Wednesday · 1.5 min · 1,367 recorded · 1,362 measured · Source: the US BTS Thursday · 4.1 min · 1,463 recorded · 1,461 measured · Source: the US BTS Friday · 6.0 min · 1,485 recorded · 1,461 measured · Source: the US BTS Saturday · 5.8 min · 1,228 recorded · 1,200 measured · Source: the US BTS Sunday · 12.3 min · 1,460 recorded · 1,417 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 · 1,499 · 1,499 recorded · 1,479 measured · Source: the US BTS Tuesday · 1,372 · 1,372 recorded · 1,360 measured · Source: the US BTS Wednesday · 1,367 · 1,367 recorded · 1,362 measured · Source: the US BTS Thursday · 1,463 · 1,463 recorded · 1,461 measured · Source: the US BTS Friday · 1,485 · 1,485 recorded · 1,461 measured · Source: the US BTS Saturday · 1,228 · 1,228 recorded · 1,200 measured · Source: the US BTS Sunday · 1,460 · 1,460 recorded · 1,417 measured · Source: the US BTS

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

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday83.3%8.3 min1,4791,499
Tuesday88.1%4.1 min1,3601,372
Wednesday89.7%1.5 min1,3621,367
Thursday88.0%4.1 min1,4611,463
Friday86.8%6.0 min1,4611,485
Saturday84.9%5.8 min1,2001,228
Sunday79.0%12.3 min1,4171,460

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 · 85.2% · 802 recorded · 764 measured · Source: the US BTS Feb · 84.3% · 797 recorded · 794 measured · Source: the US BTS Mar · 84.8% · 940 recorded · 917 measured · Source: the US BTS Apr · 88.7% · 923 recorded · 910 measured · Source: the US BTS May · 83.0% · 1,034 recorded · 1,026 measured · Source: the US BTS Jun · 80.8% · 954 recorded · 936 measured · Source: the US BTS Jul · 81.0% · 940 recorded · 935 measured · Source: the US BTS Aug · 87.9% · 482 recorded · 479 measured · Source: the US BTS Sep · 95.5% · 444 recorded · 444 measured · Source: the US BTS Oct · 92.2% · 772 recorded · 772 measured · Source: the US BTS Nov · 88.2% · 878 recorded · 870 measured · Source: the US BTS Dec · 83.8% · 908 recorded · 893 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 · 8.7 min · 802 recorded · 764 measured · Source: the US BTS Feb · 3.4 min · 797 recorded · 794 measured · Source: the US BTS Mar · 6.5 min · 940 recorded · 917 measured · Source: the US BTS Apr · 2.4 min · 923 recorded · 910 measured · Source: the US BTS May · 7.9 min · 1,034 recorded · 1,026 measured · Source: the US BTS Jun · 11.5 min · 954 recorded · 936 measured · Source: the US BTS Jul · 11.3 min · 940 recorded · 935 measured · Source: the US BTS Aug · 2.5 min · 482 recorded · 479 measured · Source: the US BTS Sep · -3.8 min · 444 recorded · 444 measured · Source: the US BTS Oct · 0.1 min · 772 recorded · 772 measured · Source: the US BTS Nov · 6.3 min · 878 recorded · 870 measured · Source: the US BTS Dec · 7.6 min · 908 recorded · 893 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 · 802 · 802 recorded · 764 measured · Source: the US BTS Feb · 797 · 797 recorded · 794 measured · Source: the US BTS Mar · 940 · 940 recorded · 917 measured · Source: the US BTS Apr · 923 · 923 recorded · 910 measured · Source: the US BTS May · 1,034 · 1,034 recorded · 1,026 measured · Source: the US BTS Jun · 954 · 954 recorded · 936 measured · Source: the US BTS Jul · 940 · 940 recorded · 935 measured · Source: the US BTS Aug · 482 · 482 recorded · 479 measured · Source: the US BTS Sep · 444 · 444 recorded · 444 measured · Source: the US BTS Oct · 772 · 772 recorded · 772 measured · Source: the US BTS Nov · 878 · 878 recorded · 870 measured · Source: the US BTS Dec · 908 · 908 recorded · 893 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
Jan85.2%8.7 min764802
Feb84.3%3.4 min794797
Mar84.8%6.5 min917940
Apr88.7%2.4 min910923
May83.0%7.9 min1,0261,034
Jun80.8%11.5 min936954
Jul81.0%11.3 min935940
Aug87.9%2.5 min479482
Sep95.5%-3.8 min444444
Oct92.2%0.1 min772772
Nov88.2%6.3 min870878
Dec83.8%7.6 min893908

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 84.5% 8,342
  • Delayed >15 min 14.2% 1,398
  • Cancelled 1.4% 134
  • 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

39
39 of 39
Flight numbersBy direction DeparturesOn time
DL1610 SDF → ATL 636 93.1%
DL2624 ATL → SDF 628 83.9%
DL1481 SDF → ATL 613 86.9%
DL1481 ATL → SDF 613 88.1%
DL3093 ATL → SDF 535 77.7%
DL1374 ATL → SDF 508 90.4%
DL1126 ATL → SDF 443 82.5%
DL2831 ATL → SDF 399 80.6%
DL1374 SDF → ATL 352 89.3%
DL1126 SDF → ATL 264 77.3%
DL3152 SDF → ATL 239 94.5%
DL3165 SDF → ATL 239 81.9%
DL3165 ATL → SDF 239 85.2%
DL2407 SDF → ATL 224 92.7%
DL3195 ATL → SDF 213 80.6%
DL3195 SDF → ATL 213 78.7%
DL1998 SDF → ATL 195 96.4%
DL1511 ATL → SDF 194 78.1%
DL2451 SDF → ATL 194 88.6%
DL2451 ATL → SDF 194 89.6%
DL3145 SDF → ATL 194 83.5%
DL2812 SDF → ATL 193 78.2%
DL2812 ATL → SDF 193 79.4%
DL2831 SDF → ATL 191 77.8%
DL1819 SDF → ATL 190 91.5%
DL1622 SDF → ATL 165 92.6%
DL1292 ATL → SDF 160 79.6%
DL2299 SDF → ATL 144 91.0%
WN1265 SDF → ATL 105 96.1%
DL1119 SDF → ATL 96 88.3%
DL1119 ATL → SDF 96 89.5%
DL1292 SDF → ATL 94 73.9%
WN695 ATL → SDF 93 90.1%
DL1523 SDF → ATL 67 93.9%
DL1523 ATL → SDF 67 87.5%
DL2842 ATL → SDF 65 84.6%
DL3172 SDF → ATL 47 95.7%
DL3148 ATL → SDF 44 81.8%
DL2745 SDF → ATL 34 88.2%

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 478 +4.6% 2 77.6%
June 2026 470 +0.9% 2 87.2%
May 2026 518 +2.0% 8 86.7%
April 2026 473 +8.2% 7 90.7%
March 2026 440 −7.8% 22 82.0%
February 2026 387 −4.9% 2 85.3%
January 2026 368 −7.1% 14 84.5%
December 2025 416 −12.8% 15 83.2%
November 2025 419 −7.1% 8 83.3%
October 2025 459 +46.6% 0 91.1%
September 2025 444 0 95.5%
August 2025 479 3 87.9%
July 2025 457 3 84.5%
June 2025 466 16 74.2%
May 2025 508 0 79.3%
April 2025 437 6 86.5%
March 2025 477 1 87.4%
February 2025 407 1 83.3%
January 2025 396 24 85.9%
December 2024 477 0 84.3%
November 2024 451 0 92.7%
October 2024 313 0 93.9%

How to read this chart

Loading the guide…