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 delay08:00–09:006.0min · 570 recorded · 559 measured
Gap to highest-delay hour28.6min08:00 ↔ 22:00
Recorded flights4,602DFW–RNO
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
34.617.30.0
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
6273140
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
Fewer than 200 measured departures
—
1
1
01:00
No observations
—
—
—
02:00
No observations
—
—
—
03:00
No observations
—
—
—
04:00
No observations
—
—
—
05:00
Fewer than 200 measured departures
—
30
31
06:00
89.6%
16.6 min
608
627
07:00
No observations
—
—
—
08:00
83.0%
6.0 min
559
570
09:00
Fewer than 200 measured departures
—
109
114
10:00
Fewer than 200 measured departures
—
178
181
11:00
76.0%
23.0 min
491
503
12:00
74.0%
16.3 min
601
618
13:00
No observations
—
—
—
14:00
69.6%
23.3 min
566
576
15:00
Fewer than 200 measured departures
—
76
80
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
56
57
18:00
Fewer than 200 measured departures
—
102
107
19:00
67.0%
23.0 min
215
220
20:00
Fewer than 200 measured departures
—
143
152
21:00
Fewer than 200 measured departures
—
150
152
22:00
54.3%
34.6 min
282
293
23:00
86.5%
9.2 min
311
320
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
26.613.30.0
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
6803400
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
76.4%
16.5 min
656
669
Tuesday
79.9%
15.9 min
613
628
Wednesday
74.2%
14.8 min
616
631
Thursday
76.5%
12.3 min
654
668
Friday
75.8%
21.0 min
652
670
Saturday
72.0%
23.9 min
631
656
Sunday
71.2%
26.6 min
656
680
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
34.017.00.0
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
4822410
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%
16.9 min
364
396
Feb
80.4%
34.0 min
367
370
Mar
78.7%
11.3 min
450
458
Apr
69.2%
18.1 min
438
450
May
71.8%
18.6 min
461
475
Jun
70.1%
18.8 min
455
471
Jul
67.0%
23.2 min
473
482
Aug
Fewer than 200 measured departures
—
188
198
Sep
Fewer than 200 measured departures
—
176
182
Oct
82.5%
13.1 min
332
332
Nov
81.0%
16.2 min
374
382
Dec
75.3%
18.6 min
400
406
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 time73.1%3,363
Delayed >15 min24.2%1,115
Cancelled2.7%124
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.