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 delay06:00–07:004.2min · 214 recorded · 214 measured
Gap to highest-delay hour4.4min06:00 ↔ 10:00
Recorded flights2,154BZN–LAS
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
8.64.30.0
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
2801400
00:0003:0006:0009:0012:0015:0018:0021:00
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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
—
33
33
06:00
92.5%
4.2 min
214
214
07:00
Fewer than 200 measured departures
—
74
74
08:00
Fewer than 200 measured departures
—
121
121
09:00
Fewer than 200 measured departures
—
171
171
10:00
79.5%
8.6 min
278
280
11:00
Fewer than 200 measured departures
—
172
172
12:00
Fewer than 200 measured departures
—
143
145
13:00
Fewer than 200 measured departures
—
176
176
14:00
Fewer than 200 measured departures
—
105
107
15:00
Fewer than 200 measured departures
—
75
75
16:00
Fewer than 200 measured departures
—
90
90
17:00
Fewer than 200 measured departures
—
61
62
18:00
Fewer than 200 measured departures
—
110
110
19:00
Fewer than 200 measured departures
—
103
103
20:00
Fewer than 200 measured departures
—
106
106
21:00
Fewer than 200 measured departures
—
86
86
22:00
Fewer than 200 measured departures
—
29
29
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
22.211.10.0
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
4602300
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
71.1%
14.5 min
287
288
Tuesday
79.1%
8.3 min
239
239
Wednesday
80.0%
10.1 min
225
225
Thursday
73.3%
17.4 min
445
449
Friday
65.7%
22.2 min
294
294
Saturday
Fewer than 200 measured departures
—
199
199
Sunday
76.9%
12.6 min
458
460
Month of year
Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
On-time departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
JanFebMarAprMayJunJulAugSepOctNovDec
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
JanFebMarAprMayJunJulAugSepOctNovDec
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
2661330
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
153
154
Feb
Fewer than 200 measured departures
—
156
158
Mar
75.1%
12.0 min
225
225
Apr
Fewer than 200 measured departures
—
170
170
May
Fewer than 200 measured departures
—
160
160
Jun
59.2%
23.2 min
245
245
Jul
63.5%
23.3 min
266
266
Aug
Fewer than 200 measured departures
—
114
114
Sep
Fewer than 200 measured departures
—
110
110
Oct
Fewer than 200 measured departures
—
186
186
Nov
Fewer than 200 measured departures
—
164
168
Dec
Fewer than 200 measured departures
—
198
198
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 time73.7%1,587
Delayed >15 min26.0%560
Cancelled0.3%7
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.