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 delay06:00–07:003.9min · 652 recorded · 641 measured
Gap to highest-delay hour9.8min06:00 ↔ 20:00
Recorded flights2,609IAH–OMA
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
13.66.80.0
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
6523260
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
—
1
1
06:00
93.6%
3.9 min
641
652
07:00
No observations
—
—
—
08:00
86.8%
10.6 min
357
360
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
85.6%
8.7 min
250
251
12:00
Fewer than 200 measured departures
—
2
2
13:00
Fewer than 200 measured departures
—
37
37
14:00
Fewer than 200 measured departures
—
55
55
15:00
Fewer than 200 measured departures
—
198
199
16:00
84.0%
6.4 min
200
202
17:00
Fewer than 200 measured departures
—
166
167
18:00
Fewer than 200 measured departures
—
32
32
19:00
Fewer than 200 measured departures
—
164
166
20:00
75.7%
13.6 min
478
484
21:00
Fewer than 200 measured departures
—
1
1
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
13.86.90.0
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
3941970
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
82.6%
12.5 min
368
371
Tuesday
84.4%
9.4 min
372
376
Wednesday
84.5%
13.8 min
367
372
Thursday
82.3%
13.1 min
379
380
Friday
83.4%
10.8 min
392
394
Saturday
81.6%
11.1 min
343
349
Sunday
76.7%
12.9 min
361
367
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
31.315.70.0
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
2701350
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
91.3%
2.9 min
253
258
Feb
88.7%
5.3 min
230
230
Mar
81.8%
12.7 min
258
264
Apr
89.3%
2.2 min
233
233
May
78.8%
12.8 min
231
233
Jun
66.5%
31.3 min
263
270
Jul
75.7%
23.4 min
255
256
Aug
Fewer than 200 measured departures
—
129
130
Sep
Fewer than 200 measured departures
—
120
120
Oct
Fewer than 200 measured departures
—
191
191
Nov
Fewer than 200 measured departures
—
179
182
Dec
83.3%
8.7 min
240
242
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 time81.4%2,124
Delayed >15 min17.6%458
Cancelled1.0%27
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.