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 delay06:00–07:00-2.0min · 569 recorded · 568 measured
Gap to highest-delay hour7.8min06:00 ↔ 18:00
Recorded flights3,181GEG–LAX
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
5.81.9-2.0
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
5692850
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
95.6%
-2.0 min
568
569
07:00
96.1%
-1.8 min
408
409
08:00
Fewer than 200 measured departures
—
45
45
09:00
Fewer than 200 measured departures
—
6
6
10:00
Fewer than 200 measured departures
—
21
21
11:00
89.2%
2.2 min
342
343
12:00
Fewer than 200 measured departures
—
35
35
13:00
Fewer than 200 measured departures
—
76
76
14:00
87.0%
4.8 min
383
384
15:00
Fewer than 200 measured departures
—
70
73
16:00
Fewer than 200 measured departures
—
86
86
17:00
Fewer than 200 measured departures
—
20
20
18:00
85.2%
5.8 min
527
533
19:00
87.6%
0.0 min
346
347
20:00
Fewer than 200 measured departures
—
180
180
21:00
Fewer than 200 measured departures
—
54
54
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
4.81.8-1.3
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
4862430
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
88.1%
4.7 min
480
481
Tuesday
92.0%
-0.7 min
435
437
Wednesday
91.6%
0.7 min
439
441
Thursday
90.5%
1.9 min
452
456
Friday
88.1%
4.8 min
486
486
Saturday
92.2%
-1.3 min
423
428
Sunday
88.3%
2.8 min
452
452
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
7.72.4-2.9
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
4402200
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
—
190
192
Feb
Fewer than 200 measured departures
—
168
168
Mar
91.7%
0.9 min
242
242
Apr
88.8%
4.3 min
294
295
May
91.1%
-0.6 min
370
371
Jun
91.5%
0.3 min
412
414
Jul
86.4%
5.8 min
435
440
Aug
91.3%
0.0 min
206
206
Sep
Fewer than 200 measured departures
—
182
182
Oct
92.4%
0.6 min
262
263
Nov
93.6%
-2.9 min
202
204
Dec
84.8%
7.7 min
204
204
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 time89.6%2,851
Delayed >15 min9.9%316
Cancelled0.4%14
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.