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 delay07:00–08:000.3min · 332 recorded · 330 measured
Gap to highest-delay hour18.9min07:00 ↔ 18:00
Recorded flights4,649RDU–TPA
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
19.29.60.0
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
6023010
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
—
36
36
06:00
92.8%
0.5 min
516
527
07:00
94.2%
0.3 min
330
332
08:00
Fewer than 200 measured departures
—
131
133
09:00
89.7%
1.5 min
594
602
10:00
86.7%
7.2 min
352
353
11:00
Fewer than 200 measured departures
—
187
188
12:00
Fewer than 200 measured departures
—
147
147
13:00
Fewer than 200 measured departures
—
179
180
14:00
Fewer than 200 measured departures
—
91
91
15:00
71.1%
16.0 min
346
349
16:00
77.9%
14.0 min
213
215
17:00
Fewer than 200 measured departures
—
148
153
18:00
71.8%
19.2 min
593
601
19:00
Fewer than 200 measured departures
—
105
109
20:00
75.6%
15.9 min
389
397
21:00
Fewer than 200 measured departures
—
198
198
22:00
Fewer than 200 measured departures
—
37
38
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
14.07.00.0
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
7713860
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.4%
12.8 min
726
739
Tuesday
88.2%
3.0 min
543
546
Wednesday
86.8%
4.1 min
546
548
Thursday
79.8%
14.0 min
694
696
Friday
81.4%
7.9 min
731
735
Saturday
82.1%
10.3 min
597
614
Sunday
76.8%
13.2 min
755
771
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
20.410.1-0.2
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
4622310
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
80.9%
11.6 min
351
364
Feb
81.4%
12.0 min
393
398
Mar
81.1%
9.1 min
439
449
Apr
86.8%
5.3 min
448
448
May
82.4%
10.0 min
450
452
Jun
80.7%
11.7 min
440
446
Jul
71.3%
20.4 min
450
456
Aug
Fewer than 200 measured departures
—
198
202
Sep
Fewer than 200 measured departures
—
178
178
Oct
89.7%
-0.2 min
360
360
Nov
85.1%
7.0 min
428
434
Dec
77.5%
14.0 min
457
462
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 time80.9%3,763
Delayed >15 min17.8%829
Cancelled1.2%57
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.