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 delay09:00–10:002.3min · 486 recorded · 485 measured
Gap to highest-delay hour18.4min09:00 ↔ 16:00
Recorded flights1,404DEN–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
20.610.30.0
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
5662830
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
Fewer than 200 measured departures
—
1
1
07:00
No observations
—
—
—
08:00
Fewer than 200 measured departures
—
2
2
09:00
91.8%
2.3 min
485
486
10:00
Fewer than 200 measured departures
—
154
154
11:00
Fewer than 200 measured departures
—
30
30
12:00
Fewer than 200 measured departures
—
19
19
13:00
Fewer than 200 measured departures
—
43
43
14:00
Fewer than 200 measured departures
—
1
1
15:00
Fewer than 200 measured departures
—
70
70
16:00
66.6%
20.6 min
562
566
17:00
Fewer than 200 measured departures
—
28
29
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
3
3
20:00
No observations
—
—
—
21:00
No observations
—
—
—
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
14.17.00.0
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
2641320
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
—
197
198
Tuesday
Fewer than 200 measured departures
—
164
164
Wednesday
Fewer than 200 measured departures
—
164
164
Thursday
Fewer than 200 measured departures
—
194
196
Friday
Fewer than 200 measured departures
—
199
200
Saturday
70.1%
14.1 min
264
264
Sunday
75.9%
10.9 min
216
218
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
172860
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
—
106
108
Feb
Fewer than 200 measured departures
—
104
104
Mar
Fewer than 200 measured departures
—
140
140
Apr
Fewer than 200 measured departures
—
142
142
May
Fewer than 200 measured departures
—
148
150
Jun
Fewer than 200 measured departures
—
169
170
Jul
Fewer than 200 measured departures
—
171
172
Aug
Fewer than 200 measured departures
—
70
70
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
108
108
Nov
Fewer than 200 measured departures
—
120
120
Dec
Fewer than 200 measured departures
—
60
60
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 time77.4%1,087
Delayed >15 min22.2%311
Cancelled0.4%6
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.