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 delay07:00–08:00-2.7min · 689 recorded · 676 measured
Gap to highest-delay hour21.9min07:00 ↔ 19:00
Recorded flights6,878EWR–PIT
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
19.28.2-2.7
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
6893450
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
—
24
25
06:00
97.8%
-2.5 min
499
508
07:00
94.8%
-2.7 min
676
689
08:00
93.3%
-1.2 min
595
606
09:00
91.3%
1.3 min
472
483
10:00
91.7%
0.3 min
324
329
11:00
87.9%
4.5 min
313
322
12:00
Fewer than 200 measured departures
—
189
196
13:00
Fewer than 200 measured departures
—
169
173
14:00
84.4%
8.0 min
211
213
15:00
Fewer than 200 measured departures
—
162
169
16:00
84.2%
6.4 min
405
425
17:00
78.3%
17.6 min
535
561
18:00
74.6%
18.2 min
627
681
19:00
77.2%
19.2 min
584
635
20:00
Fewer than 200 measured departures
—
60
62
21:00
72.2%
18.9 min
558
612
22:00
Fewer than 200 measured departures
—
156
169
23:00
Fewer than 200 measured departures
—
20
20
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
13.16.50.0
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
1,0275140
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
83.8%
8.2 min
973
1,027
Tuesday
89.0%
3.1 min
938
975
Wednesday
88.0%
5.3 min
949
972
Thursday
81.6%
13.1 min
957
1,012
Friday
82.7%
9.9 min
1,002
1,025
Saturday
85.6%
8.1 min
822
861
Sunday
82.9%
10.5 min
938
1,006
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
18.19.10.0
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
7023510
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
90.5%
0.8 min
589
618
Feb
88.4%
2.2 min
524
556
Mar
87.9%
7.4 min
621
631
Apr
85.1%
8.4 min
551
571
May
85.9%
6.9 min
537
581
Jun
85.1%
15.0 min
518
543
Jul
77.2%
18.1 min
473
544
Aug
81.4%
11.2 min
370
376
Sep
89.6%
8.0 min
355
366
Oct
86.4%
4.2 min
686
693
Nov
80.7%
10.9 min
679
702
Dec
79.7%
10.1 min
676
697
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 time81.1%5,577
Delayed >15 min14.6%1,002
Cancelled4.3%299
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.