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 delay10:00–11:0010.7min · 254 recorded · 253 measured
Gap to highest-delay hour18.5min10:00 ↔ 19:00
Recorded flights5,223DEN–HDN
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
29.214.60.0
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
1,2226110
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
No observations
—
—
—
07:00
82.8%
12.1 min
696
705
08:00
Fewer than 200 measured departures
—
89
89
09:00
Fewer than 200 measured departures
—
61
61
10:00
79.8%
10.7 min
253
254
11:00
79.0%
13.2 min
911
914
12:00
76.8%
14.5 min
314
316
13:00
80.4%
11.6 min
1,209
1,222
14:00
Fewer than 200 measured departures
—
116
117
15:00
70.6%
20.8 min
639
649
16:00
Fewer than 200 measured departures
—
53
54
17:00
Fewer than 200 measured departures
—
43
43
18:00
Fewer than 200 measured departures
—
142
144
19:00
70.7%
29.2 min
644
651
20:00
Fewer than 200 measured departures
—
4
4
21:00
No observations
—
—
—
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
23.111.60.0
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
7983990
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
78.6%
11.0 min
757
758
Tuesday
80.7%
14.9 min
669
684
Wednesday
79.7%
10.2 min
675
680
Thursday
74.2%
14.7 min
751
757
Friday
75.1%
19.5 min
755
764
Saturday
75.2%
23.1 min
787
798
Sunday
73.0%
20.0 min
780
782
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
29.214.60.0
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
6253130
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
82.1%
11.0 min
542
556
Feb
67.2%
29.2 min
531
534
Mar
76.7%
12.9 min
621
625
Apr
83.6%
9.7 min
378
382
May
71.7%
18.9 min
395
398
Jun
66.8%
26.8 min
476
476
Jul
70.6%
22.3 min
487
494
Aug
70.6%
21.3 min
231
232
Sep
86.5%
4.4 min
222
222
Oct
88.5%
0.9 min
366
366
Nov
84.7%
10.7 min
405
414
Dec
76.4%
19.2 min
520
524
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 time75.8%3,958
Delayed >15 min23.3%1,216
Cancelled0.9%49
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.