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 delay06:00–07:00-1.8min · 290 recorded · 288 measured
Gap to highest-delay hour25.6min06:00 ↔ 16:00
Recorded flights2,931MCO–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
23.811.0-1.8
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
3641820
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
Fewer than 200 measured departures
—
9
9
06:00
96.2%
-1.8 min
288
290
07:00
92.8%
0.2 min
359
364
08:00
94.4%
1.2 min
231
231
09:00
Fewer than 200 measured departures
—
150
151
10:00
88.5%
2.8 min
260
261
11:00
82.1%
10.9 min
262
263
12:00
79.4%
12.3 min
291
295
13:00
Fewer than 200 measured departures
—
160
160
14:00
Fewer than 200 measured departures
—
151
151
15:00
Fewer than 200 measured departures
—
154
154
16:00
65.3%
23.8 min
239
240
17:00
Fewer than 200 measured departures
—
70
70
18:00
Fewer than 200 measured departures
—
60
60
19:00
Fewer than 200 measured departures
—
137
138
20:00
Fewer than 200 measured departures
—
91
93
21:00
Fewer than 200 measured departures
—
1
1
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
15.87.90.0
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
5592800
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.9%
13.6 min
389
394
Tuesday
81.8%
10.2 min
380
384
Wednesday
86.2%
5.2 min
383
384
Thursday
84.9%
6.7 min
397
397
Friday
86.3%
5.9 min
401
402
Saturday
78.1%
11.7 min
558
559
Sunday
77.5%
15.8 min
405
411
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
16.18.00.0
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
3891950
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
82.4%
9.5 min
216
221
Feb
79.9%
14.4 min
274
280
Mar
75.1%
16.1 min
305
308
Apr
88.5%
3.3 min
364
364
May
85.6%
6.0 min
389
389
Jun
79.3%
13.4 min
270
270
Jul
76.4%
14.0 min
216
218
Aug
Fewer than 200 measured departures
—
135
136
Sep
Fewer than 200 measured departures
—
128
128
Oct
79.5%
9.2 min
219
219
Nov
Fewer than 200 measured departures
—
196
196
Dec
77.6%
10.8 min
201
202
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 time81.2%2,381
Delayed >15 min18.2%532
Cancelled0.6%18
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.