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 delay07:00–08:005.8min · 511 recorded · 493 measured
Gap to highest-delay hour41.0min07:00 ↔ 19:00
Recorded flights2,399LGA–SRQ
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
46.823.40.0
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
5112560
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
No observations
—
—
—
06:00
No observations
—
—
—
07:00
91.5%
5.8 min
493
511
08:00
Fewer than 200 measured departures
—
42
42
09:00
Fewer than 200 measured departures
—
37
39
10:00
84.6%
12.2 min
267
276
11:00
81.6%
8.9 min
473
489
12:00
Fewer than 200 measured departures
—
49
50
13:00
Fewer than 200 measured departures
—
51
53
14:00
73.5%
37.5 min
200
209
15:00
71.0%
21.8 min
359
371
16:00
Fewer than 200 measured departures
—
17
20
17:00
Fewer than 200 measured departures
—
57
58
18:00
Fewer than 200 measured departures
—
11
13
19:00
66.0%
46.8 min
247
260
20:00
Fewer than 200 measured departures
—
6
8
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
29.114.60.0
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
3481740
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.4%
29.1 min
322
347
Tuesday
79.5%
19.0 min
332
343
Wednesday
81.5%
13.4 min
329
335
Thursday
80.0%
21.2 min
330
336
Friday
82.5%
9.9 min
337
344
Saturday
83.2%
17.7 min
340
348
Sunday
74.6%
20.1 min
319
346
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
32.516.30.0
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
3081540
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
79.1%
19.6 min
282
294
Feb
79.0%
18.7 min
262
272
Mar
75.2%
19.6 min
286
308
Apr
85.5%
6.4 min
296
298
May
Fewer than 200 measured departures
—
174
178
Jun
Fewer than 200 measured departures
—
124
130
Jul
Fewer than 200 measured departures
—
130
142
Aug
Fewer than 200 measured departures
—
72
72
Sep
Fewer than 200 measured departures
—
62
62
Oct
Fewer than 200 measured departures
—
94
102
Nov
84.8%
6.6 min
243
247
Dec
72.2%
32.5 min
284
294
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 time76.7%1,841
Delayed >15 min19.5%468
Cancelled3.8%90
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.