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 delay20:00–21:00-1.2min · 321 recorded · 321 measured
Gap to highest-delay hour5.1min20:00 ↔ 11:00
Recorded flights3,400SBA–SLC
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
4.01.4-1.2
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
6513260
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
94.7%
3.2 min
647
651
06:00
No observations
—
—
—
07:00
Fewer than 200 measured departures
—
7
7
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
95.0%
-1.0 min
418
420
11:00
87.7%
4.0 min
235
238
12:00
93.7%
-0.2 min
429
436
13:00
87.8%
0.5 min
222
222
14:00
No observations
—
—
—
15:00
89.0%
1.9 min
381
384
16:00
89.3%
0.9 min
318
321
17:00
Fewer than 200 measured departures
—
67
67
18:00
No observations
—
—
—
19:00
No observations
—
—
—
20:00
93.2%
-1.2 min
321
321
21:00
Fewer than 200 measured departures
—
199
202
22:00
Fewer than 200 measured departures
—
131
131
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
5.61.8-2.1
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
4902450
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
93.7%
-0.0 min
490
490
Tuesday
93.8%
-1.8 min
484
488
Wednesday
92.1%
3.3 min
481
486
Thursday
95.0%
-2.1 min
480
484
Friday
90.9%
0.4 min
485
486
Saturday
86.4%
5.6 min
470
476
Sunday
91.3%
2.5 min
485
490
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
7.62.7-2.1
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
3721860
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
90.3%
3.0 min
269
276
Feb
89.3%
5.2 min
272
274
Mar
94.5%
-0.5 min
308
308
Apr
93.7%
-2.1 min
300
300
May
94.5%
-0.6 min
310
310
Jun
93.6%
0.6 min
346
346
Jul
91.5%
0.3 min
365
372
Aug
Fewer than 200 measured departures
—
182
182
Sep
Fewer than 200 measured departures
—
170
170
Oct
90.9%
1.4 min
264
264
Nov
92.1%
-0.1 min
292
294
Dec
87.2%
7.6 min
297
304
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 time91.2%3,102
Delayed >15 min8.0%273
Cancelled0.7%25
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.