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 delay20:00–21:00-3.6min · 355 recorded · 354 measured
Gap to highest-delay hour18.0min20:00 ↔ 21:00
Recorded flights2,882OGG–PHX
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
14.45.4-3.6
00:0003:0006:0009:0012:0015:0018:0021:00
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
4932470
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
Fewer than 200 measured departures
—
8
8
08:00
89.8%
0.8 min
275
275
09:00
88.6%
4.6 min
493
493
10:00
84.1%
5.9 min
358
358
11:00
85.0%
6.7 min
326
327
12:00
Fewer than 200 measured departures
—
103
103
13:00
No observations
—
—
—
14:00
Fewer than 200 measured departures
—
29
30
15:00
Fewer than 200 measured departures
—
24
24
16:00
No observations
—
—
—
17:00
No observations
—
—
—
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
1
1
20:00
97.7%
-3.6 min
354
355
21:00
94.1%
14.4 min
340
341
22:00
92.1%
9.4 min
432
434
23:00
Fewer than 200 measured departures
—
133
133
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
14.37.20.0
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
4142070
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
90.3%
5.4 min
412
412
Tuesday
90.2%
14.3 min
409
410
Wednesday
89.5%
7.5 min
410
410
Thursday
88.4%
6.6 min
412
412
Friday
88.7%
3.9 min
414
414
Saturday
90.9%
1.7 min
407
412
Sunday
89.6%
1.5 min
412
412
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
29.814.2-1.4
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
3101550
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
87.5%
6.2 min
248
248
Feb
90.7%
0.9 min
258
258
Mar
88.2%
7.5 min
306
310
Apr
89.3%
6.2 min
252
252
May
91.9%
0.2 min
270
270
Jun
88.3%
2.2 min
300
300
Jul
84.8%
29.8 min
309
310
Aug
Fewer than 200 measured departures
—
124
124
Sep
Fewer than 200 measured departures
—
120
120
Oct
90.7%
0.1 min
204
204
Nov
94.5%
-1.4 min
237
238
Dec
87.9%
2.6 min
248
248
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 time89.5%2,578
Delayed >15 min10.3%298
Cancelled0.2%6
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.