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 delay08:00–09:000.6min · 231 recorded · 230 measured
Gap to highest-delay hour31.3min08:00 ↔ 18:00
Recorded flights3,555EWR–MYR
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
31.916.00.0
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
4532270
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
—
112
112
06:00
Fewer than 200 measured departures
—
95
103
07:00
Fewer than 200 measured departures
—
159
160
08:00
89.1%
0.6 min
230
231
09:00
Fewer than 200 measured departures
—
156
159
10:00
86.9%
6.4 min
420
453
11:00
81.4%
12.2 min
307
311
12:00
76.7%
11.8 min
232
246
13:00
81.6%
9.0 min
255
273
14:00
74.4%
19.7 min
305
329
15:00
78.6%
14.0 min
276
287
16:00
Fewer than 200 measured departures
—
111
123
17:00
Fewer than 200 measured departures
—
193
215
18:00
67.0%
31.9 min
239
257
19:00
Fewer than 200 measured departures
—
99
103
20:00
Fewer than 200 measured departures
—
63
66
21:00
Fewer than 200 measured departures
—
73
84
22:00
Fewer than 200 measured departures
—
36
43
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
22.211.10.0
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
5242620
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
80.6%
13.0 min
475
519
Tuesday
82.0%
10.9 min
456
481
Wednesday
82.8%
13.1 min
458
476
Thursday
75.2%
22.2 min
499
523
Friday
77.7%
13.5 min
506
517
Saturday
78.2%
12.2 min
486
515
Sunday
77.8%
17.9 min
481
524
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
28.514.20.0
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
4142070
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
81.8%
6.9 min
225
247
Feb
86.9%
2.2 min
245
280
Mar
77.9%
15.7 min
326
340
Apr
84.4%
12.9 min
403
414
May
77.0%
24.2 min
287
320
Jun
79.1%
17.3 min
273
282
Jul
71.6%
28.5 min
275
305
Aug
82.1%
12.0 min
235
242
Sep
84.2%
9.1 min
221
226
Oct
81.6%
9.1 min
326
330
Nov
71.3%
17.0 min
293
299
Dec
71.0%
19.5 min
252
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 time74.8%2,658
Delayed >15 min19.8%703
Cancelled5.5%194
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.