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 delay10:00–11:0021.9min · 412 recorded · 407 measured
Gap to highest-delay hour38.8min10:00 ↔ 13:00
Recorded flights2,583DFW–JAC
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
60.730.40.0
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
6823410
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
Fewer than 200 measured departures
—
119
122
08:00
Fewer than 200 measured departures
—
192
194
09:00
Fewer than 200 measured departures
—
4
4
10:00
72.5%
21.9 min
407
412
11:00
Fewer than 200 measured departures
—
189
195
12:00
69.3%
42.1 min
671
682
13:00
62.5%
60.7 min
331
338
14:00
Fewer than 200 measured departures
—
56
61
15:00
Fewer than 200 measured departures
—
185
193
16:00
Fewer than 200 measured departures
—
184
190
17:00
Fewer than 200 measured departures
—
110
113
18:00
Fewer than 200 measured departures
—
67
70
19:00
Fewer than 200 measured departures
—
7
9
20:00
No observations
—
—
—
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
54.927.50.0
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
4142070
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
67.2%
38.3 min
354
358
Tuesday
73.3%
38.5 min
315
322
Wednesday
68.1%
44.9 min
329
338
Thursday
71.6%
29.5 min
362
371
Friday
66.4%
37.7 min
363
373
Saturday
65.8%
34.9 min
404
414
Sunday
61.3%
54.9 min
395
407
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
47.923.90.0
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
4002000
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
65.1%
47.9 min
209
226
Feb
67.0%
32.4 min
200
200
Mar
72.8%
40.0 min
232
234
Apr
Fewer than 200 measured departures
—
135
138
May
69.8%
34.9 min
225
229
Jun
63.9%
32.2 min
371
383
Jul
65.1%
44.4 min
395
400
Aug
Fewer than 200 measured departures
—
194
198
Sep
Fewer than 200 measured departures
—
178
180
Oct
Fewer than 200 measured departures
—
121
121
Nov
Fewer than 200 measured departures
—
100
106
Dec
Fewer than 200 measured departures
—
162
168
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 time65.9%1,701
Delayed >15 min31.8%821
Cancelled2.4%61
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.