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 delay07:00–08:003.8min · 567 recorded · 563 measured
Gap to highest-delay hour3.8min07:00 ↔ 18:00
Recorded flights2,354FAT–PDX
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
7.63.80.0
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
5672840
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
91.3%
3.8 min
563
567
08:00
Fewer than 200 measured departures
—
164
164
09:00
Fewer than 200 measured departures
—
26
26
10:00
Fewer than 200 measured departures
—
86
86
11:00
Fewer than 200 measured departures
—
187
187
12:00
Fewer than 200 measured departures
—
85
85
13:00
Fewer than 200 measured departures
—
38
38
14:00
84.7%
6.6 min
339
340
15:00
Fewer than 200 measured departures
—
88
88
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
165
166
18:00
84.9%
7.6 min
272
272
19:00
Fewer than 200 measured departures
—
129
129
20:00
Fewer than 200 measured departures
—
173
175
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
10.05.00.0
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
3601800
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
82.5%
10.0 min
332
332
Tuesday
88.7%
5.7 min
328
328
Wednesday
90.0%
4.5 min
329
329
Thursday
88.5%
3.8 min
357
358
Friday
85.2%
6.0 min
338
340
Saturday
90.1%
2.8 min
304
307
Sunday
86.3%
6.1 min
358
360
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
11.25.60.0
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
3261630
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
—
141
144
Feb
Fewer than 200 measured departures
—
111
112
Mar
Fewer than 200 measured departures
—
123
124
Apr
Fewer than 200 measured departures
—
156
156
May
90.0%
6.6 min
249
250
Jun
84.6%
6.0 min
299
300
Jul
85.9%
7.5 min
326
326
Aug
Fewer than 200 measured departures
—
186
187
Sep
Fewer than 200 measured departures
—
172
172
Oct
Fewer than 200 measured departures
—
161
161
Nov
Fewer than 200 measured departures
—
190
190
Dec
81.9%
11.2 min
232
232
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 time87.0%2,048
Delayed >15 min12.7%298
Cancelled0.3%8
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.