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 delay16:00–17:0017.6min · 676 recorded · 673 measured
Gap to highest-delay hour4.8min16:00 ↔ 15:00
Recorded flights2,883PHX–PIT
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
22.411.20.0
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
6763380
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
—
2
2
06:00
Fewer than 200 measured departures
—
81
82
07:00
90.7%
18.2 min
567
568
08:00
Fewer than 200 measured departures
—
120
121
09:00
Fewer than 200 measured departures
—
90
90
10:00
Fewer than 200 measured departures
—
85
85
11:00
Fewer than 200 measured departures
—
186
187
12:00
Fewer than 200 measured departures
—
79
79
13:00
Fewer than 200 measured departures
—
197
198
14:00
Fewer than 200 measured departures
—
131
132
15:00
69.7%
22.4 min
442
442
16:00
70.3%
17.6 min
673
676
17:00
Fewer than 200 measured departures
—
139
140
18:00
Fewer than 200 measured departures
—
47
47
19:00
Fewer than 200 measured departures
—
20
20
20:00
Fewer than 200 measured departures
—
7
7
21:00
No observations
—
—
—
22:00
No observations
—
—
—
23:00
Fewer than 200 measured departures
—
7
7
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
27.413.70.0
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
4542270
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.6%
27.4 min
440
443
Tuesday
75.0%
18.8 min
368
370
Wednesday
78.5%
14.7 min
363
364
Thursday
75.6%
16.2 min
393
393
Friday
76.2%
17.5 min
436
437
Saturday
78.4%
10.0 min
453
454
Sunday
76.9%
16.9 min
420
422
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
30.215.10.0
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
3041520
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
81.0%
14.7 min
237
243
Feb
84.4%
15.7 min
243
243
Mar
71.0%
21.9 min
303
304
Apr
81.3%
16.7 min
288
288
May
76.4%
16.7 min
284
284
Jun
69.0%
21.8 min
258
258
Jul
69.1%
30.2 min
262
262
Aug
Fewer than 200 measured departures
—
122
124
Sep
Fewer than 200 measured departures
—
119
120
Oct
76.6%
12.3 min
222
222
Nov
80.9%
10.2 min
262
262
Dec
73.6%
17.3 min
273
273
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 time76.0%2,192
Delayed >15 min23.6%681
Cancelled0.3%10
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.