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 · Nov 11, 2024 → Jul 31, 2026
Lowest average delay20:00–21:002.5min · 315 recorded · 295 measured
Gap to highest-delay hour11.0min20:00 ↔ 11:00
Recorded flights914OGG–SLC
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
13.56.80.0
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
3151580
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
No observations
—
—
—
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
Fewer than 200 measured departures
—
18
18
11:00
83.5%
13.5 min
272
282
12:00
No observations
—
—
—
13:00
Fewer than 200 measured departures
—
18
18
14:00
No observations
—
—
—
15:00
Fewer than 200 measured departures
—
138
139
16:00
No observations
—
—
—
17:00
No observations
—
—
—
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
1
1
20:00
92.2%
2.5 min
295
315
21:00
Fewer than 200 measured departures
—
120
123
22:00
No observations
—
—
—
23:00
Fewer than 200 measured departures
—
17
18
Day of week
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
136680
MonTueWedThuFriSatSun
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
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
131
136
Tuesday
Fewer than 200 measured departures
—
123
124
Wednesday
Fewer than 200 measured departures
—
123
124
Thursday
Fewer than 200 measured departures
—
122
126
Friday
Fewer than 200 measured departures
—
127
136
Saturday
Fewer than 200 measured departures
—
129
134
Sunday
Fewer than 200 measured departures
—
124
134
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
150750
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
—
130
134
Feb
Fewer than 200 measured departures
—
110
112
Mar
Fewer than 200 measured departures
—
115
124
Apr
Fewer than 200 measured departures
—
83
86
May
Fewer than 200 measured departures
—
55
62
Jun
Fewer than 200 measured departures
—
60
60
Jul
Fewer than 200 measured departures
—
58
62
Aug
No observations
—
—
—
Sep
No observations
—
—
—
Oct
Fewer than 200 measured departures
—
26
28
Nov
Fewer than 200 measured departures
—
95
96
Dec
Fewer than 200 measured departures
—
147
150
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 time82.9%758
Delayed >15 min13.2%121
Cancelled3.8%35
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.