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 delay07:00–08:000.8min · 418 recorded · 411 measured
Gap to highest-delay hour32.5min07:00 ↔ 20:00
Recorded flights6,340LGA–MCI
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
33.416.70.0
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
9754880
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
—
82
84
06:00
93.5%
3.3 min
946
975
07:00
93.2%
0.8 min
411
418
08:00
88.2%
4.6 min
374
390
09:00
Fewer than 200 measured departures
—
157
161
10:00
Fewer than 200 measured departures
—
134
138
11:00
83.0%
9.5 min
387
397
12:00
79.7%
16.0 min
626
646
13:00
75.1%
16.3 min
213
217
14:00
70.4%
25.7 min
365
375
15:00
66.0%
21.3 min
297
312
16:00
63.8%
22.2 min
240
249
17:00
66.9%
29.8 min
679
698
18:00
63.9%
31.1 min
451
465
19:00
68.5%
29.8 min
216
233
20:00
56.1%
33.4 min
513
556
21:00
Fewer than 200 measured departures
—
23
26
22:00
No observations
—
—
—
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
20.410.20.0
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
9844920
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.7%
17.1 min
934
984
Tuesday
78.4%
18.9 min
934
972
Wednesday
77.9%
15.6 min
928
966
Thursday
74.5%
20.4 min
946
964
Friday
76.1%
19.0 min
957
978
Saturday
83.7%
8.8 min
516
524
Sunday
75.1%
16.0 min
899
952
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
26.413.20.0
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
6403200
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
82.5%
13.9 min
526
560
Feb
82.1%
12.1 min
480
506
Mar
72.0%
20.2 min
575
618
Apr
79.1%
8.9 min
594
606
May
74.8%
20.4 min
612
622
Jun
72.8%
21.7 min
614
626
Jul
70.9%
26.4 min
590
640
Aug
80.1%
13.4 min
276
278
Sep
84.6%
11.1 min
280
280
Oct
80.6%
11.2 min
468
476
Nov
78.9%
14.5 min
550
558
Dec
72.5%
23.8 min
549
570
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 time74.2%4,702
Delayed >15 min22.3%1,412
Cancelled3.6%226
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.