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 delay07:00–08:005.5min · 539 recorded · 538 measured
Gap to highest-delay hour13.2min07:00 ↔ 17:00
Recorded flights2,784PHX–RDU
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
18.79.40.0
00:0003:0006:0009:0012:0015:0018:0021:00
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
5392700
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
Fewer than 200 measured departures
—
1
1
01:00
No observations
—
—
—
02:00
No observations
—
—
—
03:00
No observations
—
—
—
04:00
No observations
—
—
—
05:00
Fewer than 200 measured departures
—
23
23
06:00
Fewer than 200 measured departures
—
171
180
07:00
92.9%
5.5 min
538
539
08:00
Fewer than 200 measured departures
—
144
144
09:00
Fewer than 200 measured departures
—
148
148
10:00
Fewer than 200 measured departures
—
90
90
11:00
Fewer than 200 measured departures
—
67
67
12:00
Fewer than 200 measured departures
—
188
189
13:00
68.2%
16.2 min
236
236
14:00
Fewer than 200 measured departures
—
44
45
15:00
75.2%
17.3 min
371
373
16:00
74.8%
13.6 min
305
309
17:00
72.2%
18.7 min
352
356
18:00
Fewer than 200 measured departures
—
59
59
19:00
Fewer than 200 measured departures
—
18
18
20:00
Fewer than 200 measured departures
—
1
1
21:00
No observations
—
—
—
22:00
Fewer than 200 measured departures
—
3
3
23:00
Fewer than 200 measured departures
—
3
3
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
17.38.70.0
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
4452230
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
79.0%
13.4 min
410
414
Tuesday
80.1%
12.6 min
337
338
Wednesday
81.1%
11.5 min
343
344
Thursday
82.1%
9.5 min
408
410
Friday
77.4%
14.0 min
412
413
Saturday
74.9%
14.6 min
439
445
Sunday
75.8%
17.3 min
413
420
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
26.513.30.0
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
2981490
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
170
184
Feb
84.1%
7.4 min
208
212
Mar
77.1%
11.3 min
297
298
Apr
79.2%
10.3 min
288
288
May
77.2%
10.2 min
298
298
Jun
64.9%
26.5 min
282
282
Jul
70.2%
23.2 min
292
294
Aug
Fewer than 200 measured departures
—
105
106
Sep
Fewer than 200 measured departures
—
102
102
Oct
Fewer than 200 measured departures
—
186
186
Nov
84.9%
13.9 min
264
264
Dec
81.1%
10.5 min
270
270
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 time77.9%2,168
Delayed >15 min21.3%594
Cancelled0.8%22
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.