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 delay07:00–08:00-0.8min · 253 recorded · 252 measured
Gap to highest-delay hour12.8min07:00 ↔ 18:00
Recorded flights2,740MCO–SYR
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
12.05.6-0.8
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
2811410
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
—
32
33
06:00
Fewer than 200 measured departures
—
158
159
07:00
92.9%
-0.8 min
252
253
08:00
92.1%
0.2 min
279
281
09:00
Fewer than 200 measured departures
—
173
174
10:00
Fewer than 200 measured departures
—
120
122
11:00
83.5%
8.3 min
248
249
12:00
Fewer than 200 measured departures
—
153
153
13:00
Fewer than 200 measured departures
—
86
87
14:00
80.0%
10.4 min
220
223
15:00
Fewer than 200 measured departures
—
111
111
16:00
Fewer than 200 measured departures
—
165
166
17:00
Fewer than 200 measured departures
—
122
124
18:00
74.7%
12.0 min
233
238
19:00
Fewer than 200 measured departures
—
125
125
20:00
Fewer than 200 measured departures
—
193
194
21:00
Fewer than 200 measured departures
—
48
48
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
17.38.60.0
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
4582290
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.3%
12.7 min
446
458
Tuesday
86.3%
1.7 min
306
307
Wednesday
85.4%
5.5 min
274
274
Thursday
82.9%
8.1 min
409
410
Friday
79.4%
14.4 min
451
451
Saturday
75.0%
12.5 min
404
409
Sunday
73.6%
17.3 min
428
431
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
18.59.30.0
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
3221610
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
79.3%
12.3 min
251
252
Feb
74.5%
14.1 min
271
275
Mar
75.0%
16.0 min
240
246
Apr
84.4%
5.5 min
308
308
May
81.5%
7.5 min
248
248
Jun
83.6%
5.9 min
201
203
Jul
Fewer than 200 measured departures
—
171
176
Aug
Fewer than 200 measured departures
—
142
142
Sep
Fewer than 200 measured departures
—
82
82
Oct
78.7%
15.5 min
216
216
Nov
82.5%
7.3 min
269
270
Dec
72.4%
18.5 min
319
322
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 time78.9%2,162
Delayed >15 min20.3%556
Cancelled0.8%22
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.