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 delay07:00–08:00-1.5min · 302 recorded · 297 measured
Gap to highest-delay hour19.8min07:00 ↔ 17:00
Recorded flights4,301IND–JFK
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
18.28.4-1.5
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
5952980
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
93.4%
-1.2 min
211
215
06:00
Fewer than 200 measured departures
—
73
74
07:00
93.9%
-1.5 min
297
302
08:00
Fewer than 200 measured departures
—
79
80
09:00
Fewer than 200 measured departures
—
193
195
10:00
Fewer than 200 measured departures
—
33
33
11:00
86.8%
6.3 min
265
269
12:00
81.9%
10.0 min
581
595
13:00
Fewer than 200 measured departures
—
199
206
14:00
84.4%
8.7 min
455
461
15:00
78.8%
15.1 min
433
454
16:00
75.6%
11.5 min
283
297
17:00
74.1%
18.2 min
371
380
18:00
79.3%
14.0 min
324
331
19:00
Fewer than 200 measured departures
—
179
192
20:00
Fewer than 200 measured departures
—
195
217
21:00
No observations
—
—
—
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
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
6443220
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
83.2%
8.1 min
588
617
Tuesday
81.3%
8.2 min
592
611
Wednesday
83.7%
9.9 min
590
599
Thursday
81.8%
14.0 min
583
596
Friday
82.8%
11.0 min
598
608
Saturday
79.9%
11.7 min
631
644
Sunday
83.0%
10.0 min
589
626
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
26.013.00.0
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
5202600
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
81.4%
6.9 min
404
426
Feb
84.2%
8.3 min
341
359
Mar
79.9%
11.0 min
324
330
Apr
86.5%
7.4 min
288
288
May
79.0%
13.0 min
328
331
Jun
72.7%
23.3 min
340
361
Jul
74.0%
26.0 min
331
372
Aug
Fewer than 200 measured departures
—
185
187
Sep
Fewer than 200 measured departures
—
188
188
Oct
89.1%
2.4 min
423
427
Nov
90.4%
0.8 min
518
520
Dec
77.5%
14.3 min
501
512
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 time79.7%3,429
Delayed >15 min17.3%742
Cancelled3.0%130
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.