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 delay07:00–08:001.3min · 224 recorded · 221 measured
Gap to highest-delay hour48.9min07:00 ↔ 16:00
Recorded flights3,682EWR–SAV
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
50.125.10.0
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
6183090
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
—
35
35
06:00
95.0%
3.4 min
600
618
07:00
91.9%
1.3 min
221
224
08:00
Fewer than 200 measured departures
—
112
112
09:00
Fewer than 200 measured departures
—
101
104
10:00
84.9%
9.7 min
363
378
11:00
83.4%
11.8 min
229
232
12:00
Fewer than 200 measured departures
—
110
112
13:00
72.8%
16.5 min
272
284
14:00
82.7%
11.4 min
214
222
15:00
76.4%
32.3 min
258
265
16:00
55.6%
50.1 min
232
240
17:00
Fewer than 200 measured departures
—
90
96
18:00
Fewer than 200 measured departures
—
101
105
19:00
Fewer than 200 measured departures
—
79
81
20:00
Fewer than 200 measured departures
—
58
61
21:00
68.6%
23.9 min
503
513
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
22.611.30.0
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
5542770
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.8%
22.6 min
528
554
Tuesday
81.9%
12.2 min
492
506
Wednesday
84.6%
11.2 min
488
497
Thursday
77.4%
17.2 min
527
537
Friday
79.6%
11.9 min
543
551
Saturday
81.4%
13.7 min
478
491
Sunday
75.5%
22.0 min
522
546
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
45.022.50.0
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
4162080
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
84.4%
9.0 min
288
312
Feb
84.8%
10.1 min
295
312
Mar
77.1%
14.5 min
410
416
Apr
84.0%
7.4 min
350
357
May
85.2%
11.3 min
263
271
Jun
79.8%
30.8 min
253
258
Jul
65.8%
45.0 min
228
244
Aug
Fewer than 200 measured departures
—
183
186
Sep
Fewer than 200 measured departures
—
189
190
Oct
82.1%
11.2 min
358
360
Nov
77.9%
17.9 min
407
412
Dec
75.1%
14.2 min
354
364
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 time77.5%2,855
Delayed >15 min19.6%723
Cancelled2.8%104
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.