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 delay08:00–09:002.3min · 457 recorded · 447 measured
Gap to highest-delay hour12.9min08:00 ↔ 07:00
Recorded flights6,331ABI–DFW
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
15.27.60.0
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
7733870
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
89.9%
5.5 min
425
427
06:00
91.5%
2.3 min
363
369
07:00
80.6%
15.2 min
211
212
08:00
89.7%
2.3 min
447
457
09:00
87.1%
2.8 min
404
413
10:00
86.5%
4.6 min
643
657
11:00
No observations
—
—
—
12:00
87.8%
4.3 min
410
424
13:00
85.5%
6.6 min
536
544
14:00
86.6%
8.6 min
307
314
15:00
Fewer than 200 measured departures
—
2
2
16:00
77.6%
10.8 min
428
438
17:00
68.6%
15.0 min
210
220
18:00
74.7%
14.1 min
743
773
19:00
77.1%
14.0 min
398
407
20:00
80.1%
10.6 min
391
396
21:00
Fewer than 200 measured departures
—
184
189
22:00
Fewer than 200 measured departures
—
88
89
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
12.06.00.0
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
9384690
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
80.5%
10.9 min
913
932
Tuesday
87.0%
3.4 min
724
749
Wednesday
82.8%
7.3 min
914
928
Thursday
84.8%
6.2 min
906
924
Friday
85.9%
6.3 min
912
932
Saturday
81.4%
9.9 min
907
928
Sunday
80.7%
12.0 min
914
938
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
15.77.90.0
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
6043020
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
85.2%
6.7 min
562
597
Feb
89.7%
2.3 min
512
520
Mar
84.7%
6.5 min
588
602
Apr
80.7%
9.7 min
566
576
May
83.7%
9.0 min
582
604
Jun
75.2%
15.7 min
569
582
Jul
79.2%
11.8 min
591
598
Aug
80.2%
10.6 min
298
302
Sep
80.4%
7.9 min
286
290
Oct
86.4%
4.3 min
486
492
Nov
87.7%
4.4 min
554
570
Dec
83.6%
8.5 min
596
598
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 time81.3%5,149
Delayed >15 min16.4%1,041
Cancelled2.2%141
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.