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 delay12:00–13:0010.6min · 492 recorded · 479 measured
Gap to highest-delay hour11.1min12:00 ↔ 13:00
Recorded flights2,604DFW–GGG
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
21.810.90.0
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
6243120
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
—
24
25
06:00
90.7%
12.4 min
602
624
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
81.2%
10.6 min
479
492
13:00
75.6%
21.8 min
410
419
14:00
75.0%
18.4 min
380
400
15:00
No observations
—
—
—
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
3
3
18:00
Fewer than 200 measured departures
—
48
50
19:00
Fewer than 200 measured departures
—
88
90
20:00
Fewer than 200 measured departures
—
29
30
21:00
Fewer than 200 measured departures
—
124
133
22:00
79.7%
16.3 min
325
338
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
23.912.00.0
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
3751880
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.9%
23.3 min
363
375
Tuesday
84.6%
8.0 min
357
371
Wednesday
78.8%
17.2 min
359
369
Thursday
83.6%
10.1 min
353
368
Friday
84.2%
9.5 min
360
373
Saturday
80.1%
19.1 min
362
374
Sunday
83.5%
23.9 min
358
374
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
32.316.20.0
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
2481240
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
82.1%
30.3 min
229
248
Feb
78.3%
32.3 min
221
224
Mar
87.9%
6.4 min
239
248
Apr
80.4%
13.2 min
230
238
May
81.9%
9.9 min
238
248
Jun
76.5%
22.9 min
217
227
Jul
78.7%
19.2 min
239
245
Aug
Fewer than 200 measured departures
—
124
124
Sep
Fewer than 200 measured departures
—
118
120
Oct
83.8%
13.3 min
204
204
Nov
81.4%
9.1 min
220
236
Dec
79.0%
12.3 min
233
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 time78.8%2,051
Delayed >15 min17.7%461
Cancelled3.5%92
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.