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 27, 2024 → Jul 31, 2026
Lowest average delay21:00–22:007.5min · 269 recorded · 247 measured
Recorded flights1,224EWR–ILM
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
7.53.80.0
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
2691350
00:0003:0006:0009:0012:0015:0018:0021:00
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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
Fewer than 200 measured departures
—
194
196
07:00
Fewer than 200 measured departures
—
86
88
08:00
Fewer than 200 measured departures
—
1
1
09:00
No observations
—
—
—
10:00
Fewer than 200 measured departures
—
70
71
11:00
Fewer than 200 measured departures
—
51
51
12:00
Fewer than 200 measured departures
—
21
21
13:00
Fewer than 200 measured departures
—
143
147
14:00
Fewer than 200 measured departures
—
158
166
15:00
Fewer than 200 measured departures
—
36
37
16:00
Fewer than 200 measured departures
—
84
100
17:00
Fewer than 200 measured departures
—
67
69
18:00
No observations
—
—
—
19:00
No observations
—
—
—
20:00
Fewer than 200 measured departures
—
1
1
21:00
81.0%
7.5 min
247
269
22:00
Fewer than 200 measured departures
—
5
7
23:00
No observations
—
—
—
Day of week
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
185930
MonTueWedThuFriSatSun
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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
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
178
185
Tuesday
Fewer than 200 measured departures
—
168
175
Wednesday
Fewer than 200 measured departures
—
164
170
Thursday
Fewer than 200 measured departures
—
163
174
Friday
Fewer than 200 measured departures
—
169
178
Saturday
Fewer than 200 measured departures
—
154
161
Sunday
Fewer than 200 measured departures
—
168
181
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
8.74.40.0
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
2341170
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
—
40
40
Feb
Fewer than 200 measured departures
—
2
2
Mar
Fewer than 200 measured departures
—
21
22
Apr
85.6%
5.9 min
201
207
May
Fewer than 200 measured departures
—
162
179
Jun
Fewer than 200 measured departures
—
139
144
Jul
Fewer than 200 measured departures
—
109
122
Aug
No observations
—
—
—
Sep
No observations
—
—
—
Oct
Fewer than 200 measured departures
—
42
44
Nov
87.4%
3.7 min
222
230
Dec
80.5%
8.7 min
226
234
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 time81.0%991
Delayed >15 min14.1%173
Cancelled4.9%60
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.