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 delay07:00–08:00-1.9min · 319 recorded · 319 measured
Gap to highest-delay hour9.2min07:00 ↔ 14:00
Recorded flights3,073LAX–MRY
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
7.42.8-1.9
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
6093050
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
Fewer than 200 measured departures
—
1
1
06:00
Fewer than 200 measured departures
—
128
128
07:00
95.9%
-1.9 min
319
319
08:00
91.9%
0.1 min
384
386
09:00
Fewer than 200 measured departures
—
19
19
10:00
90.0%
1.0 min
607
609
11:00
Fewer than 200 measured departures
—
21
21
12:00
No observations
—
—
—
13:00
Fewer than 200 measured departures
—
142
142
14:00
86.3%
7.4 min
212
213
15:00
No observations
—
—
—
16:00
91.5%
1.1 min
340
343
17:00
Fewer than 200 measured departures
—
2
2
18:00
91.5%
-1.3 min
330
334
19:00
86.7%
4.5 min
309
309
20:00
91.4%
4.9 min
220
221
21:00
Fewer than 200 measured departures
—
26
26
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
3.41.5-0.3
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
4582290
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
90.0%
1.8 min
451
453
Tuesday
94.1%
-0.3 min
405
408
Wednesday
92.5%
2.6 min
441
443
Thursday
92.3%
1.4 min
443
445
Friday
90.4%
0.3 min
448
450
Saturday
88.9%
2.5 min
414
416
Sunday
87.8%
3.4 min
458
458
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
6.22.1-2.0
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
3541770
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
90.0%
1.6 min
249
249
Feb
91.9%
2.6 min
223
224
Mar
90.8%
0.2 min
294
294
Apr
91.9%
-0.9 min
321
321
May
94.8%
-2.0 min
269
269
Jun
89.9%
4.3 min
238
240
Jul
92.2%
2.3 min
242
242
Aug
Fewer than 200 measured departures
—
150
150
Sep
Fewer than 200 measured departures
—
176
176
Oct
92.1%
-0.7 min
292
292
Nov
87.5%
5.2 min
344
354
Dec
86.3%
6.2 min
262
262
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 time90.4%2,779
Delayed >15 min9.1%281
Cancelled0.4%13
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.