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 delay13:00–14:0014.0min · 214 recorded · 212 measured
Gap to highest-delay hour1.0min13:00 ↔ 14:00
Recorded flights1,650DAL–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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
15.07.50.0
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
2141070
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
—
34
34
07:00
Fewer than 200 measured departures
—
30
31
08:00
Fewer than 200 measured departures
—
77
80
09:00
Fewer than 200 measured departures
—
95
97
10:00
Fewer than 200 measured departures
—
123
124
11:00
Fewer than 200 measured departures
—
149
151
12:00
Fewer than 200 measured departures
—
122
124
13:00
76.9%
14.0 min
212
214
14:00
70.4%
15.0 min
206
206
15:00
Fewer than 200 measured departures
—
176
178
16:00
Fewer than 200 measured departures
—
91
92
17:00
Fewer than 200 measured departures
—
55
55
18:00
Fewer than 200 measured departures
—
169
171
19:00
Fewer than 200 measured departures
—
61
61
20:00
Fewer than 200 measured departures
—
3
3
21:00
Fewer than 200 measured departures
—
5
5
22:00
Fewer than 200 measured departures
—
11
11
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
22.911.40.0
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
3401700
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
—
198
200
Tuesday
Fewer than 200 measured departures
—
195
196
Wednesday
Fewer than 200 measured departures
—
192
192
Thursday
Fewer than 200 measured departures
—
190
192
Friday
Fewer than 200 measured departures
—
196
198
Saturday
78.4%
12.9 min
333
340
Sunday
61.6%
22.9 min
328
332
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
176880
JanFebMarAprMayJunJulAugSepOctNovDec
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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
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
135
142
Feb
Fewer than 200 measured departures
—
120
120
Mar
Fewer than 200 measured departures
—
157
158
Apr
Fewer than 200 measured departures
—
155
158
May
Fewer than 200 measured departures
—
168
170
Jun
Fewer than 200 measured departures
—
154
154
Jul
Fewer than 200 measured departures
—
152
154
Aug
Fewer than 200 measured departures
—
82
82
Sep
Fewer than 200 measured departures
—
76
76
Oct
Fewer than 200 measured departures
—
116
116
Nov
Fewer than 200 measured departures
—
142
144
Dec
Fewer than 200 measured departures
—
175
176
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 time72.3%1,193
Delayed >15 min26.6%439
Cancelled1.1%18
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.