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 delay06:00–07:003.0min · 462 recorded · 458 measured
Gap to highest-delay hour19.6min06:00 ↔ 16:00
Recorded flights2,576DFW–ILM
Departure hour
On-time departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
22.511.30.0
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
5152580
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
View the figures
Departure hour
On-time departures
Average departure delay
With departure time
Recorded flights
00:00
No observations
—
—
—
01:00
No observations
—
—
—
02:00
No observations
—
—
—
03:00
No observations
—
—
—
04:00
No observations
—
—
—
05:00
No observations
—
—
—
06:00
91.3%
3.0 min
458
462
07:00
Fewer than 200 measured departures
—
194
204
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
Fewer than 200 measured departures
—
9
9
12:00
73.2%
18.8 min
507
515
13:00
Fewer than 200 measured departures
—
136
143
14:00
Fewer than 200 measured departures
—
7
9
15:00
No observations
—
—
—
16:00
67.9%
22.5 min
243
251
17:00
71.9%
19.6 min
373
385
18:00
Fewer than 200 measured departures
—
188
192
19:00
73.0%
21.9 min
366
376
20:00
Fewer than 200 measured departures
—
30
30
21:00
No observations
—
—
—
22:00
No observations
—
—
—
23:00
No observations
—
—
—
Day of week
On-time departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
25.512.80.0
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
3981990
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
72.2%
23.2 min
371
378
Tuesday
82.0%
10.6 min
338
348
Wednesday
77.6%
12.9 min
344
349
Thursday
78.8%
14.7 min
363
371
Friday
77.6%
12.4 min
361
374
Saturday
68.1%
25.5 min
348
358
Sunday
73.1%
20.9 min
386
398
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 departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
29.814.90.0
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
2641320
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
182
202
Feb
Fewer than 200 measured departures
—
199
202
Mar
78.1%
23.5 min
246
248
Apr
79.9%
11.2 min
234
240
May
82.6%
4.9 min
242
248
Jun
70.2%
29.8 min
248
254
Jul
66.8%
22.5 min
262
264
Aug
Fewer than 200 measured departures
—
124
126
Sep
Fewer than 200 measured departures
—
116
120
Oct
Fewer than 200 measured departures
—
196
200
Nov
76.8%
14.0 min
224
232
Dec
66.0%
23.0 min
238
240
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 time73.6%1,897
Delayed >15 min23.8%614
Cancelled2.5%65
Missing departure time0.0%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 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.