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 delay06:00–07:002.3min · 410 recorded · 404 measured
Gap to highest-delay hour22.3min06:00 ↔ 16:00
Recorded flights1,474EWR–MEM
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
24.612.30.0
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
4102050
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
92.6%
2.3 min
404
410
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
Fewer than 200 measured departures
—
18
18
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
Fewer than 200 measured departures
—
18
18
13:00
85.6%
6.5 min
264
271
14:00
Fewer than 200 measured departures
—
40
40
15:00
Fewer than 200 measured departures
—
48
59
16:00
64.5%
24.6 min
234
250
17:00
No observations
—
—
—
18:00
Fewer than 200 measured departures
—
43
52
19:00
Fewer than 200 measured departures
—
51
54
20:00
Fewer than 200 measured departures
—
44
55
21:00
71.8%
20.0 min
223
238
22:00
Fewer than 200 measured departures
—
9
9
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
20.710.30.0
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
2271140
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
80.6%
9.0 min
216
225
Tuesday
84.2%
7.5 min
215
227
Wednesday
80.4%
14.7 min
219
225
Thursday
Fewer than 200 measured departures
—
199
217
Friday
77.1%
19.0 min
214
220
Saturday
Fewer than 200 measured departures
—
131
141
Sunday
74.3%
20.7 min
202
219
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
23.111.60.0
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
2401200
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
No observations
—
—
—
Feb
No observations
—
—
—
Mar
No observations
—
—
—
Apr
Fewer than 200 measured departures
—
93
93
May
Fewer than 200 measured departures
—
161
170
Jun
Fewer than 200 measured departures
—
196
206
Jul
77.0%
23.1 min
200
240
Aug
Fewer than 200 measured departures
—
109
112
Sep
Fewer than 200 measured departures
—
111
112
Oct
Fewer than 200 measured departures
—
188
190
Nov
76.9%
13.2 min
208
216
Dec
Fewer than 200 measured departures
—
130
135
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 time75.5%1,113
Delayed >15 min19.2%283
Cancelled5.3%78
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.