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 delay06:00–07:00-4.4min · 263 recorded · 263 measured
Gap to highest-delay hour2.9min06:00 ↔ 21:00
Recorded flights1,961PIH–SLC
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
1.0-1.7-4.4
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
3671840
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
97.7%
-4.4 min
263
263
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
Fewer than 200 measured departures
—
91
91
10:00
Fewer than 200 measured departures
—
122
122
11:00
91.8%
-1.6 min
366
367
12:00
Fewer than 200 measured departures
—
168
168
13:00
91.5%
-2.6 min
364
365
14:00
Fewer than 200 measured departures
—
75
76
15:00
Fewer than 200 measured departures
—
94
94
16:00
Fewer than 200 measured departures
—
7
7
17:00
Fewer than 200 measured departures
—
83
83
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
83
83
20:00
Fewer than 200 measured departures
—
34
34
21:00
96.6%
-1.5 min
208
208
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
3.3-0.8-4.9
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
2841420
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
91.9%
-2.2 min
284
284
Tuesday
96.8%
-4.9 min
279
280
Wednesday
95.4%
-4.9 min
280
280
Thursday
91.6%
-2.1 min
284
284
Friday
94.0%
-3.4 min
284
284
Saturday
91.4%
3.3 min
268
268
Sunday
92.8%
0.5 min
279
281
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
1.0-2.2-5.5
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
2401200
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
—
184
184
Feb
Fewer than 200 measured departures
—
168
168
Mar
Fewer than 200 measured departures
—
186
186
Apr
Fewer than 200 measured departures
—
180
180
May
95.7%
-5.5 min
232
232
Jun
93.8%
0.6 min
240
240
Jul
Fewer than 200 measured departures
—
194
195
Aug
Fewer than 200 measured departures
—
62
62
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
126
126
Nov
Fewer than 200 measured departures
—
150
152
Dec
Fewer than 200 measured departures
—
176
176
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 time93.3%1,829
Delayed >15 min6.6%129
Cancelled0.2%3
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.