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 delay06:00–07:00-2.0min · 301 recorded · 300 measured
Gap to highest-delay hour36.8min06:00 ↔ 21:00
Recorded flights3,686AUS–ELP
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
34.816.4-2.0
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
3451730
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
95.3%
-0.6 min
343
345
06:00
96.3%
-2.0 min
300
301
07:00
Fewer than 200 measured departures
—
76
76
08:00
Fewer than 200 measured departures
—
104
104
09:00
Fewer than 200 measured departures
—
133
133
10:00
92.6%
1.5 min
230
231
11:00
86.4%
3.4 min
287
287
12:00
80.4%
7.6 min
326
327
13:00
Fewer than 200 measured departures
—
145
146
14:00
Fewer than 200 measured departures
—
117
118
15:00
66.1%
16.0 min
274
274
16:00
75.9%
9.5 min
207
208
17:00
Fewer than 200 measured departures
—
131
131
18:00
62.8%
21.8 min
207
207
19:00
68.3%
19.0 min
246
247
20:00
66.1%
18.7 min
245
245
21:00
46.0%
34.8 min
202
203
22:00
Fewer than 200 measured departures
—
101
103
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
12.66.30.0
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
5652830
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
74.5%
11.9 min
549
552
Tuesday
81.7%
8.4 min
547
547
Wednesday
79.6%
7.2 min
543
545
Thursday
77.8%
11.1 min
544
546
Friday
76.2%
12.6 min
547
548
Saturday
81.4%
7.9 min
382
383
Sunday
74.9%
12.2 min
562
565
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
18.39.10.0
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
3671840
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
84.7%
5.7 min
274
276
Feb
86.6%
5.5 min
277
278
Mar
76.9%
9.5 min
342
346
Apr
81.7%
8.6 min
355
356
May
72.5%
16.9 min
363
365
Jun
63.8%
18.3 min
356
356
Jul
66.1%
16.2 min
366
367
Aug
Fewer than 200 measured departures
—
172
172
Sep
Fewer than 200 measured departures
—
172
172
Oct
86.8%
5.2 min
288
288
Nov
80.4%
7.4 min
346
346
Dec
78.2%
9.2 min
363
364
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 time77.6%2,860
Delayed >15 min22.1%814
Cancelled0.3%12
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.