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 delay08:00–09:00-0.7min · 303 recorded · 300 measured
Gap to highest-delay hour24.7min08:00 ↔ 18:00
Recorded flights3,328BNA–PNS
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
24.011.7-0.7
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
8234120
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
No observations
—
—
—
06:00
Fewer than 200 measured departures
—
97
97
07:00
93.2%
1.5 min
818
823
08:00
93.0%
-0.7 min
300
303
09:00
Fewer than 200 measured departures
—
80
83
10:00
Fewer than 200 measured departures
—
34
34
11:00
Fewer than 200 measured departures
—
166
166
12:00
Fewer than 200 measured departures
—
136
137
13:00
Fewer than 200 measured departures
—
169
169
14:00
Fewer than 200 measured departures
—
181
181
15:00
Fewer than 200 measured departures
—
122
125
16:00
76.5%
10.9 min
328
330
17:00
71.4%
12.2 min
301
305
18:00
61.6%
24.0 min
219
220
19:00
Fewer than 200 measured departures
—
122
125
20:00
Fewer than 200 measured departures
—
134
136
21:00
Fewer than 200 measured departures
—
94
94
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
13.26.60.0
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
4882440
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
79.1%
9.6 min
478
483
Tuesday
82.2%
8.6 min
461
464
Wednesday
83.2%
5.0 min
453
457
Thursday
76.3%
12.9 min
481
484
Friday
77.0%
12.3 min
486
488
Saturday
80.9%
8.8 min
467
470
Sunday
76.4%
13.2 min
475
482
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
16.58.30.0
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
3521760
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
85.6%
6.0 min
243
258
Feb
85.7%
3.3 min
224
224
Mar
81.9%
12.0 min
293
297
Apr
83.5%
8.1 min
328
330
May
74.9%
11.3 min
351
352
Jun
69.2%
16.5 min
338
340
Jul
67.3%
15.7 min
339
340
Aug
Fewer than 200 measured departures
—
167
167
Sep
Fewer than 200 measured departures
—
164
164
Oct
83.5%
7.4 min
290
290
Nov
81.7%
9.5 min
284
284
Dec
73.6%
16.0 min
280
282
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 time78.6%2,616
Delayed >15 min20.6%685
Cancelled0.8%27
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.