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 delay06:00–07:006.2min · 251 recorded · 247 measured
Recorded flights1,536MDW–SAV
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
6.23.10.0
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
2511260
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
—
50
50
06:00
91.1%
6.2 min
247
251
07:00
Fewer than 200 measured departures
—
148
148
08:00
Fewer than 200 measured departures
—
85
86
09:00
Fewer than 200 measured departures
—
26
26
10:00
Fewer than 200 measured departures
—
5
5
11:00
Fewer than 200 measured departures
—
27
27
12:00
Fewer than 200 measured departures
—
112
112
13:00
Fewer than 200 measured departures
—
177
177
14:00
Fewer than 200 measured departures
—
130
134
15:00
Fewer than 200 measured departures
—
107
107
16:00
Fewer than 200 measured departures
—
61
61
17:00
Fewer than 200 measured departures
—
97
97
18:00
Fewer than 200 measured departures
—
117
120
19:00
Fewer than 200 measured departures
—
64
64
20:00
Fewer than 200 measured departures
—
64
64
21:00
Fewer than 200 measured departures
—
7
7
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
15.57.80.0
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
2861430
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
79.8%
11.6 min
233
234
Tuesday
Fewer than 200 measured departures
—
169
170
Wednesday
Fewer than 200 measured departures
—
170
172
Thursday
Fewer than 200 measured departures
—
182
184
Friday
83.1%
9.8 min
231
232
Saturday
74.1%
14.4 min
282
286
Sunday
72.8%
15.5 min
257
258
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
180900
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
—
103
110
Feb
Fewer than 200 measured departures
—
106
106
Mar
Fewer than 200 measured departures
—
170
172
Apr
Fewer than 200 measured departures
—
162
162
May
Fewer than 200 measured departures
—
169
170
Jun
Fewer than 200 measured departures
—
180
180
Jul
Fewer than 200 measured departures
—
178
178
Aug
Fewer than 200 measured departures
—
68
68
Sep
Fewer than 200 measured departures
—
50
50
Oct
Fewer than 200 measured departures
—
100
100
Nov
Fewer than 200 measured departures
—
114
116
Dec
Fewer than 200 measured departures
—
124
124
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 time78.8%1,211
Delayed >15 min20.4%313
Cancelled0.8%12
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.