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 delay07:00–08:000.3min · 322 recorded · 316 measured
Gap to highest-delay hour14.9min07:00 ↔ 13:00
Recorded flights2,993BDL–TPA
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
15.17.60.0
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
3391700
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
Fewer than 200 measured departures
—
57
57
06:00
Fewer than 200 measured departures
—
125
125
07:00
93.0%
0.3 min
316
322
08:00
Fewer than 200 measured departures
—
133
135
09:00
Fewer than 200 measured departures
—
166
166
10:00
77.3%
7.9 min
225
226
11:00
81.5%
9.8 min
222
226
12:00
Fewer than 200 measured departures
—
144
144
13:00
77.6%
15.1 min
335
339
14:00
71.4%
12.0 min
248
252
15:00
79.4%
9.6 min
291
293
16:00
76.0%
12.8 min
204
205
17:00
Fewer than 200 measured departures
—
86
88
18:00
Fewer than 200 measured departures
—
146
148
19:00
Fewer than 200 measured departures
—
169
172
20:00
Fewer than 200 measured departures
—
45
46
21:00
Fewer than 200 measured departures
—
47
49
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
14.27.10.0
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
4852430
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
78.6%
10.2 min
434
444
Tuesday
82.3%
7.4 min
379
380
Wednesday
86.4%
5.9 min
374
374
Thursday
82.0%
9.9 min
421
422
Friday
79.9%
9.0 min
432
434
Saturday
76.5%
12.8 min
481
485
Sunday
76.7%
14.2 min
438
454
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
22.811.40.0
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
3471740
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
81.8%
7.6 min
274
284
Feb
82.7%
9.8 min
294
305
Mar
78.1%
13.3 min
279
284
Apr
80.4%
8.2 min
286
286
May
78.9%
10.2 min
256
256
Jun
82.0%
7.3 min
239
240
Jul
74.8%
22.8 min
202
202
Aug
Fewer than 200 measured departures
—
122
122
Sep
Fewer than 200 measured departures
—
104
104
Oct
84.8%
4.1 min
217
217
Nov
84.3%
4.9 min
344
347
Dec
71.9%
14.2 min
342
346
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 time79.2%2,370
Delayed >15 min19.7%589
Cancelled1.1%34
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.