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 delay09:00–10:00-6.1min · 220 recorded · 213 measured
Gap to highest-delay hour15.9min09:00 ↔ 16:00
Recorded flights3,046ADQ–ANC
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
9.81.8-6.1
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
8644320
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
84.7%
5.5 min
836
864
08:00
Fewer than 200 measured departures
—
1
1
09:00
93.4%
-6.1 min
213
220
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
No observations
—
—
—
13:00
81.9%
4.5 min
386
396
14:00
78.1%
7.8 min
242
255
15:00
83.9%
0.9 min
372
380
16:00
78.9%
9.8 min
256
272
17:00
Fewer than 200 measured departures
—
1
1
18:00
86.0%
2.9 min
613
651
19:00
No observations
—
—
—
20:00
Fewer than 200 measured departures
—
5
6
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
5.93.00.0
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
4402200
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
84.5%
2.9 min
420
438
Tuesday
84.1%
2.9 min
421
440
Wednesday
84.5%
5.9 min
420
436
Thursday
81.6%
4.9 min
401
424
Friday
86.3%
3.6 min
416
436
Saturday
83.4%
4.0 min
421
436
Sunday
84.3%
3.5 min
426
436
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
21.08.7-3.5
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
3681840
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
77.4%
21.0 min
217
238
Feb
86.5%
-0.3 min
214
224
Mar
80.3%
7.2 min
239
248
Apr
85.0%
3.3 min
234
240
May
91.5%
-3.0 min
317
320
Jun
88.6%
-3.5 min
352
360
Jul
81.2%
6.3 min
356
368
Aug
Fewer than 200 measured departures
—
180
186
Sep
Fewer than 200 measured departures
—
178
180
Oct
80.0%
10.7 min
200
210
Nov
83.3%
6.8 min
221
231
Dec
82.5%
4.1 min
217
241
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 time80.8%2,460
Delayed >15 min15.3%465
Cancelled4.0%121
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.