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 delay15:00–16:007.3min · 237 recorded · 236 measured
Recorded flights1,376AZA–FSD
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
7.33.70.0
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
2371190
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
—
31
31
07:00
Fewer than 200 measured departures
—
118
119
08:00
Fewer than 200 measured departures
—
100
100
09:00
Fewer than 200 measured departures
—
21
21
10:00
Fewer than 200 measured departures
—
39
39
11:00
Fewer than 200 measured departures
—
65
65
12:00
Fewer than 200 measured departures
—
141
142
13:00
Fewer than 200 measured departures
—
59
59
14:00
Fewer than 200 measured departures
—
76
76
15:00
80.5%
7.3 min
236
237
16:00
Fewer than 200 measured departures
—
113
113
17:00
Fewer than 200 measured departures
—
4
4
18:00
Fewer than 200 measured departures
—
1
1
19:00
Fewer than 200 measured departures
—
48
48
20:00
Fewer than 200 measured departures
—
182
183
21:00
Fewer than 200 measured departures
—
135
135
22:00
Fewer than 200 measured departures
—
3
3
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
13.06.5-0.1
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
2321160
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
81.0%
9.3 min
210
210
Tuesday
Fewer than 200 measured departures
—
100
100
Wednesday
88.8%
0.2 min
206
206
Thursday
89.5%
-0.1 min
210
210
Friday
75.7%
13.0 min
210
210
Saturday
88.8%
7.7 min
232
232
Sunday
83.8%
11.7 min
204
208
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
6.43.20.0
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
2101050
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
Fewer than 200 measured departures
—
154
154
Feb
Fewer than 200 measured departures
—
170
170
Mar
83.0%
6.4 min
206
210
Apr
Fewer than 200 measured departures
—
148
148
May
Fewer than 200 measured departures
—
114
114
Jun
Fewer than 200 measured departures
—
102
102
Jul
Fewer than 200 measured departures
—
98
98
Aug
Fewer than 200 measured departures
—
38
38
Sep
Fewer than 200 measured departures
—
28
28
Oct
Fewer than 200 measured departures
—
86
86
Nov
Fewer than 200 measured departures
—
94
94
Dec
Fewer than 200 measured departures
—
134
134
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 time84.3%1,160
Delayed >15 min15.4%212
Cancelled0.3%4
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.