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 delay07:00–08:001.4min · 620 recorded · 612 measured
Gap to highest-delay hour10.4min07:00 ↔ 15:00
Recorded flights3,017LAX–OKC
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
11.75.90.0
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
6463230
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
No observations
—
—
—
06:00
Fewer than 200 measured departures
—
2
2
07:00
94.0%
1.4 min
612
620
08:00
Fewer than 200 measured departures
—
145
146
09:00
91.7%
1.6 min
385
386
10:00
Fewer than 200 measured departures
—
117
117
11:00
No observations
—
—
—
12:00
Fewer than 200 measured departures
—
15
15
13:00
Fewer than 200 measured departures
—
115
116
14:00
87.2%
3.3 min
367
367
15:00
86.3%
11.7 min
366
367
16:00
Fewer than 200 measured departures
—
1
1
17:00
87.6%
5.2 min
639
646
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
188
189
20:00
Fewer than 200 measured departures
—
45
45
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
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
10.25.10.0
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
4452230
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
88.3%
8.3 min
445
445
Tuesday
90.9%
1.1 min
416
416
Wednesday
90.2%
0.5 min
418
418
Thursday
88.3%
6.1 min
428
430
Friday
89.6%
2.6 min
432
440
Saturday
85.5%
7.7 min
421
428
Sunday
82.4%
10.2 min
437
440
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
14.97.50.0
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
3151580
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
86.7%
6.3 min
279
289
Feb
88.9%
6.3 min
271
271
Mar
89.6%
5.9 min
309
310
Apr
79.8%
14.9 min
248
252
May
87.7%
2.9 min
243
244
Jun
87.9%
0.6 min
240
240
Jul
91.5%
5.1 min
246
246
Aug
Fewer than 200 measured departures
—
122
124
Sep
Fewer than 200 measured departures
—
174
176
Oct
89.1%
3.8 min
248
248
Nov
90.1%
2.2 min
302
302
Dec
83.8%
8.5 min
315
315
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%2,633
Delayed >15 min12.1%364
Cancelled0.7%20
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.