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 → May 16, 2026
Lowest average delay06:00–07:00-0.0min · 331 recorded · 321 measured
Gap to highest-delay hour12.7min06:00 ↔ 21:00
Recorded flights1,398EWR–SYR
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
12.76.4-0.0
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
3311660
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
85
06:00
94.4%
-0.0 min
321
331
07:00
Fewer than 200 measured departures
—
1
1
08:00
Fewer than 200 measured departures
—
154
157
09:00
Fewer than 200 measured departures
—
100
101
10:00
Fewer than 200 measured departures
—
51
52
11:00
Fewer than 200 measured departures
—
163
165
12:00
Fewer than 200 measured departures
—
66
66
13:00
Fewer than 200 measured departures
—
4
5
14:00
Fewer than 200 measured departures
—
11
15
15:00
No observations
—
—
—
16:00
Fewer than 200 measured departures
—
0
2
17:00
Fewer than 200 measured departures
—
4
8
18:00
No observations
—
—
—
19:00
No observations
—
—
—
20:00
No observations
—
—
—
21:00
78.5%
12.7 min
233
247
22:00
Fewer than 200 measured departures
—
111
135
23:00
Fewer than 200 measured departures
—
24
28
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
3.81.90.0
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
2131070
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
88.2%
3.8 min
203
213
Tuesday
Fewer than 200 measured departures
—
194
205
Wednesday
Fewer than 200 measured departures
—
195
201
Thursday
Fewer than 200 measured departures
—
195
207
Friday
Fewer than 200 measured departures
—
196
205
Saturday
Fewer than 200 measured departures
—
175
185
Sunday
Fewer than 200 measured departures
—
167
182
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
4.22.10.0
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
2271140
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
—
122
124
Feb
Fewer than 200 measured departures
—
76
81
Mar
Fewer than 200 measured departures
—
59
62
Apr
Fewer than 200 measured departures
—
53
57
May
Fewer than 200 measured departures
—
66
83
Jun
Fewer than 200 measured departures
—
72
80
Jul
Fewer than 200 measured departures
—
102
115
Aug
Fewer than 200 measured departures
—
86
90
Sep
Fewer than 200 measured departures
—
105
107
Oct
Fewer than 200 measured departures
—
189
190
Nov
86.0%
4.2 min
222
227
Dec
Fewer than 200 measured departures
—
173
182
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 time83.1%1,162
Delayed >15 min11.7%163
Cancelled5.2%73
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.