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 delay07:00–08:000.2min · 308 recorded · 306 measured
Gap to highest-delay hour23.0min07:00 ↔ 18:00
Recorded flights2,510BNA–SRQ
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
23.211.60.0
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
3081540
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
—
1
1
06:00
Fewer than 200 measured departures
—
53
53
07:00
94.8%
0.2 min
306
308
08:00
94.0%
2.0 min
235
240
09:00
Fewer than 200 measured departures
—
112
113
10:00
Fewer than 200 measured departures
—
38
39
11:00
Fewer than 200 measured departures
—
134
136
12:00
Fewer than 200 measured departures
—
195
195
13:00
Fewer than 200 measured departures
—
96
99
14:00
Fewer than 200 measured departures
—
126
129
15:00
Fewer than 200 measured departures
—
146
146
16:00
Fewer than 200 measured departures
—
141
141
17:00
71.5%
15.8 min
295
299
18:00
63.5%
23.2 min
255
257
19:00
Fewer than 200 measured departures
—
171
176
20:00
Fewer than 200 measured departures
—
158
161
21:00
Fewer than 200 measured departures
—
16
16
22:00
Fewer than 200 measured departures
—
1
1
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
14.17.00.0
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
4222110
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
76.2%
13.9 min
407
419
Tuesday
79.9%
11.0 min
334
336
Wednesday
81.4%
7.6 min
338
339
Thursday
75.3%
13.0 min
336
336
Friday
79.6%
9.3 min
421
422
Saturday
79.5%
11.9 min
312
318
Sunday
71.6%
14.1 min
331
340
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
18.09.00.0
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
2841420
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
87.2%
4.6 min
234
240
Feb
84.8%
6.7 min
211
212
Mar
77.4%
12.3 min
257
263
Apr
79.8%
9.0 min
267
267
May
68.9%
17.1 min
283
284
Jun
71.2%
16.1 min
226
226
Jul
67.3%
18.0 min
220
220
Aug
Fewer than 200 measured departures
—
72
72
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
174
188
Nov
86.1%
5.8 min
230
230
Dec
76.7%
14.8 min
245
248
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 time76.7%1,925
Delayed >15 min22.1%554
Cancelled1.2%31
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.