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 delay11:00–12:005.2min · 384 recorded · 379 measured
Gap to highest-delay hour20.6min11:00 ↔ 19:00
Recorded flights2,946BNA–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
25.712.90.0
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
4222110
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
—
1
1
06:00
Fewer than 200 measured departures
—
175
178
07:00
Fewer than 200 measured departures
—
1
1
08:00
Fewer than 200 measured departures
—
8
8
09:00
85.2%
6.5 min
325
326
10:00
85.7%
5.8 min
420
422
11:00
87.3%
5.2 min
379
384
12:00
Fewer than 200 measured departures
—
126
127
13:00
Fewer than 200 measured departures
—
56
56
14:00
Fewer than 200 measured departures
—
33
33
15:00
Fewer than 200 measured departures
—
191
194
16:00
Fewer than 200 measured departures
—
197
198
17:00
62.8%
19.0 min
296
299
18:00
Fewer than 200 measured departures
—
185
188
19:00
65.6%
25.7 min
212
212
20:00
56.0%
23.6 min
218
219
21:00
Fewer than 200 measured departures
—
98
100
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
17.18.60.0
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
4462230
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
74.6%
13.9 min
437
439
Tuesday
78.6%
11.3 min
425
426
Wednesday
78.1%
12.0 min
416
420
Thursday
75.8%
11.8 min
426
430
Friday
74.9%
11.1 min
446
446
Saturday
75.4%
11.0 min
341
347
Sunday
72.6%
17.1 min
430
438
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
21.210.60.0
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
3021510
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
87.2%
4.9 min
235
254
Feb
84.7%
5.5 min
249
250
Mar
75.7%
14.8 min
288
290
Apr
74.7%
12.1 min
289
290
May
65.8%
21.2 min
298
298
Jun
73.2%
12.6 min
291
292
Jul
68.8%
20.7 min
301
302
Aug
Fewer than 200 measured departures
—
124
124
Sep
Fewer than 200 measured departures
—
120
120
Oct
74.8%
11.9 min
202
202
Nov
79.1%
8.4 min
258
258
Dec
74.4%
11.9 min
266
266
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 time75.1%2,211
Delayed >15 min24.1%710
Cancelled0.8%25
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.