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 delay18:00–19:00-5.8min · 405 recorded · 399 measured
Gap to highest-delay hour9.4min18:00 ↔ 15:00
Recorded flights1,924ANC–SCC
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
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
3.7-1.0-5.8
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
5162580
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
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
92.5%
-1.3 min
508
516
06:00
No observations
—
—
—
07:00
No observations
—
—
—
08:00
90.7%
-4.9 min
506
516
09:00
No observations
—
—
—
10:00
No observations
—
—
—
11:00
Fewer than 200 measured departures
—
38
40
12:00
No observations
—
—
—
13:00
Fewer than 200 measured departures
—
3
3
14:00
Fewer than 200 measured departures
—
35
38
15:00
82.7%
3.7 min
399
405
16:00
Fewer than 200 measured departures
—
1
1
17:00
No observations
—
—
—
18:00
87.7%
-5.8 min
399
405
19:00
No observations
—
—
—
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
1.0-2.3-5.5
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
3761880
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
87.6%
-0.2 min
371
376
Tuesday
88.8%
-2.9 min
374
376
Wednesday
93.0%
-5.5 min
359
368
Thursday
86.4%
-1.9 min
352
364
Friday
90.4%
-5.4 min
249
256
Saturday
Fewer than 200 measured departures
—
184
184
Sunday
No observations
—
—
—
Month of year
Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
184920
JanFebMarAprMayJunJulAugSepOctNovDec
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No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
168
180
Feb
Fewer than 200 measured departures
—
166
168
Mar
Fewer than 200 measured departures
—
180
182
Apr
Fewer than 200 measured departures
—
181
184
May
Fewer than 200 measured departures
—
182
182
Jun
Fewer than 200 measured departures
—
174
174
Jul
Fewer than 200 measured departures
—
180
182
Aug
Fewer than 200 measured departures
—
84
84
Sep
Fewer than 200 measured departures
—
88
88
Oct
Fewer than 200 measured departures
—
146
152
Nov
Fewer than 200 measured departures
—
168
168
Dec
Fewer than 200 measured departures
—
172
180
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 time87.3%1,680
Delayed >15 min10.9%209
Cancelled1.8%35
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.