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 delay13:00–14:008.3min · 290 recorded · 288 measured
Gap to highest-delay hour7.9min13:00 ↔ 15:00
Recorded flights1,244IND–MCI
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
16.38.10.0
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
2901450
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
—
25
25
08:00
Fewer than 200 measured departures
—
3
3
09:00
Fewer than 200 measured departures
—
9
9
10:00
Fewer than 200 measured departures
—
96
97
11:00
Fewer than 200 measured departures
—
39
40
12:00
Fewer than 200 measured departures
—
173
173
13:00
84.4%
8.3 min
288
290
14:00
73.9%
10.0 min
245
245
15:00
75.6%
16.3 min
201
201
16:00
Fewer than 200 measured departures
—
125
125
17:00
Fewer than 200 measured departures
—
25
25
18:00
Fewer than 200 measured departures
—
8
8
19:00
No observations
—
—
—
20:00
Fewer than 200 measured departures
—
3
3
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
10.25.10.0
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
2041020
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
—
187
188
Tuesday
Fewer than 200 measured departures
—
188
188
Wednesday
Fewer than 200 measured departures
—
188
188
Thursday
Fewer than 200 measured departures
—
185
186
Friday
Fewer than 200 measured departures
—
188
188
Saturday
Fewer than 200 measured departures
—
102
102
Sunday
80.2%
10.2 min
202
204
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
124620
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
—
108
110
Feb
Fewer than 200 measured departures
—
101
102
Mar
Fewer than 200 measured departures
—
106
106
Apr
Fewer than 200 measured departures
—
104
104
May
Fewer than 200 measured departures
—
101
102
Jun
Fewer than 200 measured departures
—
120
120
Jul
Fewer than 200 measured departures
—
124
124
Aug
Fewer than 200 measured departures
—
62
62
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
116
116
Nov
Fewer than 200 measured departures
—
116
116
Dec
Fewer than 200 measured departures
—
122
122
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 time80.0%995
Delayed >15 min19.7%245
Cancelled0.3%4
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.