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 delay11:00–12:000.4min · 560 recorded · 551 measured
Gap to highest-delay hour14.0min11:00 ↔ 14:00
Recorded flights1,826AVL–LGA
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
14.47.20.0
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
5602800
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
—
101
104
09:00
Fewer than 200 measured departures
—
39
43
10:00
Fewer than 200 measured departures
—
27
29
11:00
89.3%
0.4 min
551
560
12:00
Fewer than 200 measured departures
—
105
109
13:00
Fewer than 200 measured departures
—
173
176
14:00
79.5%
14.4 min
468
480
15:00
Fewer than 200 measured departures
—
171
182
16:00
Fewer than 200 measured departures
—
49
54
17:00
Fewer than 200 measured departures
—
30
36
18:00
Fewer than 200 measured departures
—
20
20
19:00
Fewer than 200 measured departures
—
25
31
20:00
Fewer than 200 measured departures
—
1
1
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
10.85.40.0
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
3191600
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
86.1%
9.6 min
223
232
Tuesday
86.6%
1.2 min
224
228
Wednesday
86.6%
10.8 min
223
228
Thursday
82.7%
7.2 min
220
224
Friday
78.8%
8.1 min
302
319
Saturday
83.2%
9.3 min
267
278
Sunday
86.1%
6.1 min
302
317
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
10.54.1-2.2
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
2491250
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
Fewer than 200 measured departures
—
129
141
Feb
Fewer than 200 measured departures
—
111
117
Mar
Fewer than 200 measured departures
—
118
124
Apr
Fewer than 200 measured departures
—
132
132
May
Fewer than 200 measured departures
—
151
156
Jun
Fewer than 200 measured departures
—
144
156
Jul
Fewer than 200 measured departures
—
149
158
Aug
Fewer than 200 measured departures
—
82
82
Sep
Fewer than 200 measured departures
—
76
76
Oct
91.5%
-2.2 min
200
203
Nov
88.7%
10.5 min
248
249
Dec
78.7%
9.4 min
221
232
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 time81.1%1,481
Delayed >15 min15.3%280
Cancelled3.6%65
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.