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 delay07:00–08:00-4.1min · 767 recorded · 760 measured
Gap to highest-delay hour13.1min07:00 ↔ 17:00
Recorded flights3,414BUR–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
9.02.4-4.1
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
7673840
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
No observations
—
—
—
07:00
96.1%
-4.1 min
760
767
08:00
Fewer than 200 measured departures
—
171
175
09:00
Fewer than 200 measured departures
—
5
5
10:00
89.1%
3.0 min
420
424
11:00
93.1%
-0.4 min
202
208
12:00
Fewer than 200 measured departures
—
23
23
13:00
Fewer than 200 measured departures
—
122
122
14:00
83.8%
6.0 min
616
624
15:00
Fewer than 200 measured departures
—
11
11
16:00
Fewer than 200 measured departures
—
67
68
17:00
81.1%
9.0 min
334
334
18:00
87.5%
4.7 min
343
348
19:00
81.4%
5.2 min
290
296
20:00
Fewer than 200 measured departures
—
9
9
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
6.43.0-0.3
MonTueWedThuFriSatSun
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
5202600
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
87.0%
3.3 min
506
514
Tuesday
90.9%
-0.3 min
471
474
Wednesday
89.7%
0.6 min
475
480
Thursday
87.7%
4.5 min
504
510
Friday
84.3%
6.4 min
496
504
Saturday
87.4%
2.8 min
405
412
Sunday
88.0%
2.3 min
516
520
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
8.23.4-1.4
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
3861930
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
88.4%
1.9 min
276
279
Feb
91.1%
-1.0 min
235
239
Mar
88.0%
2.8 min
276
280
Apr
94.2%
-0.5 min
243
250
May
91.8%
-1.4 min
303
306
Jun
86.9%
3.3 min
335
338
Jul
86.2%
5.4 min
362
368
Aug
Fewer than 200 measured departures
—
174
178
Sep
Fewer than 200 measured departures
—
162
162
Oct
85.9%
6.8 min
248
252
Nov
89.8%
2.1 min
374
376
Dec
79.5%
8.2 min
385
386
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 time86.8%2,962
Delayed >15 min12.0%411
Cancelled1.2%41
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.