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 14, 2024 → Jul 25, 2026
Lowest average delay09:00–10:008.5min · 228 recorded · 227 measured
Gap to highest-delay hour8.2min09:00 ↔ 16:00
Recorded flights1,092DEN–SRQ
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
16.78.30.0
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
2691350
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
Fewer than 200 measured departures
—
4
4
07:00
Fewer than 200 measured departures
—
29
29
08:00
Fewer than 200 measured departures
—
10
10
09:00
87.2%
8.5 min
227
228
10:00
Fewer than 200 measured departures
—
76
76
11:00
Fewer than 200 measured departures
—
105
105
12:00
Fewer than 200 measured departures
—
135
135
13:00
Fewer than 200 measured departures
—
149
150
14:00
Fewer than 200 measured departures
—
27
29
15:00
Fewer than 200 measured departures
—
46
46
16:00
73.8%
16.7 min
267
269
17:00
Fewer than 200 measured departures
—
5
5
18:00
Fewer than 200 measured departures
—
1
1
19:00
Fewer than 200 measured departures
—
5
5
20:00
No observations
—
—
—
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
15.97.90.0
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
2001000
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
163
168
Tuesday
Fewer than 200 measured departures
—
120
120
Wednesday
Fewer than 200 measured departures
—
120
120
Thursday
Fewer than 200 measured departures
—
159
159
Friday
Fewer than 200 measured departures
—
165
165
Saturday
72.0%
15.9 min
200
200
Sunday
Fewer than 200 measured departures
—
159
160
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
21.610.80.0
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
2481240
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
166
166
Feb
Fewer than 200 measured departures
—
184
184
Mar
75.8%
21.6 min
244
248
Apr
Fewer than 200 measured departures
—
96
96
May
Fewer than 200 measured departures
—
20
20
Jun
Fewer than 200 measured departures
—
8
8
Jul
Fewer than 200 measured departures
—
8
8
Aug
No observations
—
—
—
Sep
No observations
—
—
—
Oct
Fewer than 200 measured departures
—
54
56
Nov
Fewer than 200 measured departures
—
128
128
Dec
Fewer than 200 measured departures
—
178
178
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 time77.5%846
Delayed >15 min22.0%240
Cancelled0.5%6
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.