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 delay10:00–11:003.4min · 217 recorded · 214 measured
Gap to highest-delay hour3.8min10:00 ↔ 11:00
Recorded flights1,506BNA–ORF
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
7.33.60.0
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
2881440
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
Fewer than 200 measured departures
—
13
13
06:00
Fewer than 200 measured departures
—
8
8
07:00
Fewer than 200 measured departures
—
1
1
08:00
Fewer than 200 measured departures
—
1
1
09:00
Fewer than 200 measured departures
—
87
87
10:00
86.9%
3.4 min
214
217
11:00
80.6%
7.3 min
288
288
12:00
Fewer than 200 measured departures
—
181
183
13:00
Fewer than 200 measured departures
—
188
188
14:00
Fewer than 200 measured departures
—
151
151
15:00
Fewer than 200 measured departures
—
43
43
16:00
Fewer than 200 measured departures
—
106
106
17:00
Fewer than 200 measured departures
—
100
100
18:00
Fewer than 200 measured departures
—
25
25
19:00
Fewer than 200 measured departures
—
28
28
20:00
Fewer than 200 measured departures
—
45
47
21:00
Fewer than 200 measured departures
—
20
20
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
15.57.70.0
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
3081540
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
—
188
188
Tuesday
Fewer than 200 measured departures
—
188
188
Wednesday
Fewer than 200 measured departures
—
188
188
Thursday
Fewer than 200 measured departures
—
188
188
Friday
Fewer than 200 measured departures
—
188
188
Saturday
78.8%
9.2 min
255
258
Sunday
71.1%
15.5 min
304
308
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
156780
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
—
124
128
Feb
Fewer than 200 measured departures
—
112
112
Mar
Fewer than 200 measured departures
—
139
140
Apr
Fewer than 200 measured departures
—
142
142
May
Fewer than 200 measured departures
—
152
152
Jun
Fewer than 200 measured departures
—
153
154
Jul
Fewer than 200 measured departures
—
155
156
Aug
Fewer than 200 measured departures
—
74
74
Sep
Fewer than 200 measured departures
—
68
68
Oct
Fewer than 200 measured departures
—
116
116
Nov
Fewer than 200 measured departures
—
132
132
Dec
Fewer than 200 measured departures
—
132
132
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 time76.1%1,146
Delayed >15 min23.4%353
Cancelled0.5%7
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.