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 delay12:00–13:0011.7min · 335 recorded · 327 measured
Gap to highest-delay hour17.6min12:00 ↔ 21:00
Recorded flights2,582DFW–GRI
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
29.314.60.0
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
6373190
00:0003:0006:0009:0012:0015:0018:0021:00
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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
78.0%
25.2 min
327
335
06:00
86.7%
20.8 min
285
299
07:00
Fewer than 200 measured departures
—
24
24
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
79.5%
11.7 min
327
335
13:00
Fewer than 200 measured departures
—
25
25
14:00
Fewer than 200 measured departures
—
1
1
15:00
71.0%
26.6 min
624
637
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
85
88
18:00
Fewer than 200 measured departures
—
181
189
19:00
Fewer than 200 measured departures
—
8
8
20:00
Fewer than 200 measured departures
—
103
109
21:00
75.0%
29.3 min
504
531
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
33.616.80.0
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
3761880
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
74.3%
20.1 min
370
376
Tuesday
78.0%
21.9 min
331
340
Wednesday
75.8%
28.8 min
356
370
Thursday
74.5%
22.0 min
357
372
Friday
83.3%
23.3 min
359
374
Saturday
68.2%
33.6 min
358
374
Sunday
75.0%
23.9 min
364
376
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
39.419.70.0
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
2481240
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
77.3%
25.0 min
233
248
Feb
72.0%
31.1 min
221
224
Mar
75.2%
25.7 min
238
248
Apr
89.0%
4.7 min
219
232
May
74.7%
33.4 min
229
240
Jun
64.1%
39.4 min
220
230
Jul
75.7%
19.7 min
235
238
Aug
Fewer than 200 measured departures
—
122
124
Sep
Fewer than 200 measured departures
—
118
120
Oct
Fewer than 200 measured departures
—
197
202
Nov
71.4%
34.9 min
227
234
Dec
71.6%
29.8 min
236
242
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 time73.0%1,885
Delayed >15 min23.6%610
Cancelled3.4%87
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.