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 delay09:00–10:005.0min · 254 recorded · 251 measured
Gap to highest-delay hour43.3min09:00 ↔ 20:00
Recorded flights3,376CLT–MHT
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
48.324.20.0
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
4182090
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
94.7%
8.0 min
399
418
06:00
Fewer than 200 measured departures
—
171
183
07:00
Fewer than 200 measured departures
—
50
50
08:00
Fewer than 200 measured departures
—
24
24
09:00
86.1%
5.0 min
251
254
10:00
Fewer than 200 measured departures
—
50
55
11:00
Fewer than 200 measured departures
—
90
90
12:00
77.6%
16.1 min
303
306
13:00
72.4%
15.4 min
311
319
14:00
76.5%
13.7 min
378
383
15:00
Fewer than 200 measured departures
—
35
35
16:00
72.2%
18.9 min
288
294
17:00
63.5%
32.3 min
307
319
18:00
Fewer than 200 measured departures
—
3
3
19:00
Fewer than 200 measured departures
—
53
53
20:00
59.0%
48.3 min
222
232
21:00
Fewer than 200 measured departures
—
115
126
22:00
75.8%
13.8 min
219
232
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
26.513.20.0
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
4972490
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.5%
20.6 min
481
497
Tuesday
82.1%
13.5 min
457
469
Wednesday
81.3%
9.4 min
459
468
Thursday
77.4%
15.8 min
468
476
Friday
76.2%
16.9 min
474
488
Saturday
76.7%
13.7 min
463
486
Sunday
73.5%
26.5 min
467
492
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
29.414.70.0
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
3691850
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
75.7%
16.2 min
214
242
Feb
Fewer than 200 measured departures
—
198
216
Mar
78.3%
16.0 min
230
242
Apr
80.4%
9.1 min
336
342
May
73.2%
24.9 min
366
369
Jun
70.2%
25.2 min
342
352
Jul
67.4%
29.4 min
356
366
Aug
Fewer than 200 measured departures
—
132
136
Sep
Fewer than 200 measured departures
—
175
176
Oct
85.7%
1.9 min
258
258
Nov
84.3%
12.4 min
338
341
Dec
80.6%
14.7 min
324
336
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 time75.0%2,532
Delayed >15 min21.8%737
Cancelled3.2%107
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.