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 delay12:00–13:0015.0min · 283 recorded · 275 measured
Gap to highest-delay hour13.0min12:00 ↔ 13:00
Recorded flights1,443DFW–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
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
28.014.00.0
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
3641820
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
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
—
1
1
08:00
Fewer than 200 measured departures
—
3
3
09:00
Fewer than 200 measured departures
—
3
3
10:00
Fewer than 200 measured departures
—
4
5
11:00
Fewer than 200 measured departures
—
2
2
12:00
77.1%
15.0 min
275
283
13:00
59.5%
28.0 min
353
364
14:00
Fewer than 200 measured departures
—
42
43
15:00
Fewer than 200 measured departures
—
30
31
16:00
Fewer than 200 measured departures
—
185
190
17:00
67.0%
25.7 min
321
332
18:00
Fewer than 200 measured departures
—
147
152
19:00
Fewer than 200 measured departures
—
32
34
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
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
45.622.80.0
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
2321160
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
196
204
Tuesday
Fewer than 200 measured departures
—
186
196
Wednesday
Fewer than 200 measured departures
—
188
194
Thursday
66.2%
26.9 min
204
207
Friday
73.0%
17.4 min
200
204
Saturday
59.6%
45.6 min
225
232
Sunday
Fewer than 200 measured departures
—
199
206
Month of year
Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
176880
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
139
147
Feb
Fewer than 200 measured departures
—
110
112
Mar
Fewer than 200 measured departures
—
173
176
Apr
Fewer than 200 measured departures
—
122
126
May
Fewer than 200 measured departures
—
120
124
Jun
Fewer than 200 measured departures
—
126
129
Jul
Fewer than 200 measured departures
—
132
132
Aug
Fewer than 200 measured departures
—
60
64
Sep
Fewer than 200 measured departures
—
58
60
Oct
Fewer than 200 measured departures
—
92
100
Nov
Fewer than 200 measured departures
—
112
116
Dec
Fewer than 200 measured departures
—
154
157
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 time63.5%916
Delayed >15 min33.4%482
Cancelled3.1%45
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.