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 delay22:00–23:007.9min · 568 recorded · 559 measured
Gap to highest-delay hour11.1min22:00 ↔ 18:00
Recorded flights1,539CLT–SMF
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
19.09.50.0
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
5682840
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
—
72
75
06:00
No observations
—
—
—
07:00
No observations
—
—
—
08:00
Fewer than 200 measured departures
—
38
38
09:00
Fewer than 200 measured departures
—
9
9
10:00
Fewer than 200 measured departures
—
30
30
11:00
Fewer than 200 measured departures
—
2
2
12:00
Fewer than 200 measured departures
—
33
33
13:00
Fewer than 200 measured departures
—
30
30
14:00
Fewer than 200 measured departures
—
1
1
15:00
Fewer than 200 measured departures
—
62
64
16:00
Fewer than 200 measured departures
—
18
18
17:00
Fewer than 200 measured departures
—
118
123
18:00
70.9%
19.0 min
437
440
19:00
Fewer than 200 measured departures
—
39
41
20:00
Fewer than 200 measured departures
—
17
17
21:00
Fewer than 200 measured departures
—
28
29
22:00
86.1%
7.9 min
559
568
23:00
Fewer than 200 measured departures
—
21
21
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
23.311.70.0
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
2301150
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
79.2%
10.7 min
216
220
Tuesday
77.6%
11.7 min
205
210
Wednesday
84.3%
7.6 min
210
212
Thursday
76.6%
9.7 min
222
225
Friday
77.7%
11.6 min
224
230
Saturday
79.4%
23.3 min
209
212
Sunday
71.9%
21.3 min
228
230
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
178890
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
—
109
120
Feb
Fewer than 200 measured departures
—
104
104
Mar
Fewer than 200 measured departures
—
122
124
Apr
Fewer than 200 measured departures
—
120
120
May
Fewer than 200 measured departures
—
124
124
Jun
Fewer than 200 measured departures
—
155
163
Jul
Fewer than 200 measured departures
—
176
178
Aug
Fewer than 200 measured departures
—
120
122
Sep
Fewer than 200 measured departures
—
120
120
Oct
Fewer than 200 measured departures
—
106
106
Nov
Fewer than 200 measured departures
—
114
114
Dec
Fewer than 200 measured departures
—
144
144
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 time76.7%1,181
Delayed >15 min21.6%333
Cancelled1.6%25
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.