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 delay07:00–08:001.1min · 2,017 recorded · 1,988 measured
Gap to highest-delay hour28.8min07:00 ↔ 20:00
Recorded flights8,939JFK–TPA
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
29.914.90.0
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
2,0171,0090
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
92.7%
1.1 min
591
605
07:00
93.1%
1.1 min
1,988
2,017
08:00
88.8%
4.4 min
205
209
09:00
80.1%
9.3 min
251
257
10:00
78.1%
11.1 min
351
354
11:00
80.9%
10.3 min
1,075
1,098
12:00
74.1%
16.4 min
247
252
13:00
73.0%
16.6 min
267
267
14:00
72.2%
19.4 min
733
772
15:00
73.5%
18.6 min
652
675
16:00
Fewer than 200 measured departures
—
63
64
17:00
Fewer than 200 measured departures
—
182
186
18:00
63.0%
29.1 min
459
478
19:00
68.0%
25.1 min
1,328
1,363
20:00
62.2%
29.9 min
323
338
21:00
Fewer than 200 measured departures
—
4
4
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
24.012.00.0
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
1,3216610
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
75.9%
16.8 min
1,252
1,298
Tuesday
84.1%
8.2 min
1,220
1,251
Wednesday
83.8%
7.4 min
1,212
1,227
Thursday
78.5%
14.7 min
1,270
1,293
Friday
78.8%
11.7 min
1,269
1,285
Saturday
80.3%
12.8 min
1,238
1,264
Sunday
71.1%
24.0 min
1,258
1,321
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
26.412.5-1.4
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
9034520
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
79.1%
9.8 min
793
817
Feb
76.6%
15.5 min
748
785
Mar
77.4%
17.0 min
844
851
Apr
82.4%
6.9 min
876
879
May
79.4%
9.9 min
781
787
Jun
76.6%
18.9 min
795
814
Jul
68.0%
26.4 min
790
868
Aug
76.3%
15.2 min
414
416
Sep
94.5%
-1.4 min
363
364
Oct
85.5%
10.4 min
567
573
Nov
85.8%
8.5 min
860
882
Dec
73.7%
19.4 min
888
903
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 time76.9%6,877
Delayed >15 min20.6%1,842
Cancelled2.5%220
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.