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 · Dec 7, 2024 → Jul 31, 2026
Lowest average delay08:00–09:0020.1min · 359 recorded · 347 measured
Gap to highest-delay hour14.3min08:00 ↔ 10:00
Recorded flights1,370EGE–ORD
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
34.417.20.0
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
3591800
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
No observations
—
—
—
06:00
No observations
—
—
—
07:00
Fewer than 200 measured departures
—
5
5
08:00
77.5%
20.1 min
347
359
09:00
Fewer than 200 measured departures
—
190
192
10:00
68.0%
34.4 min
219
226
11:00
Fewer than 200 measured departures
—
20
20
12:00
62.3%
29.4 min
231
237
13:00
Fewer than 200 measured departures
—
116
117
14:00
No observations
—
—
—
15:00
No observations
—
—
—
16:00
Fewer than 200 measured departures
—
133
135
17:00
No observations
—
—
—
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
74
79
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
36.418.20.0
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
2651330
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
172
184
Tuesday
Fewer than 200 measured departures
—
119
121
Wednesday
Fewer than 200 measured departures
—
137
139
Thursday
Fewer than 200 measured departures
—
196
201
Friday
63.7%
36.4 min
226
233
Saturday
67.8%
29.3 min
261
265
Sunday
66.5%
33.3 min
224
227
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
27.613.80.0
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
3981990
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
68.0%
27.6 min
303
312
Feb
74.1%
22.6 min
324
324
Mar
69.0%
25.8 min
381
398
Apr
Fewer than 200 measured departures
—
43
49
May
No observations
—
—
—
Jun
Fewer than 200 measured departures
—
32
32
Jul
Fewer than 200 measured departures
—
31
33
Aug
Fewer than 200 measured departures
—
20
20
Sep
Fewer than 200 measured departures
—
12
12
Oct
No observations
—
—
—
Nov
No observations
—
—
—
Dec
Fewer than 200 measured departures
—
189
190
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 time67.7%928
Delayed >15 min29.7%407
Cancelled2.6%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.