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 delay08:00–09:00-5.1min · 402 recorded · 396 measured
Gap to highest-delay hour10.0min08:00 ↔ 13:00
Recorded flights4,150ANC–FAI
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
5.0-0.1-5.1
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
5482740
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
96.5%
-3.5 min
426
430
06:00
Fewer than 200 measured departures
—
195
201
07:00
Fewer than 200 measured departures
—
190
190
08:00
95.2%
-5.1 min
396
402
09:00
89.9%
-1.3 min
217
219
10:00
91.3%
-1.4 min
543
548
11:00
Fewer than 200 measured departures
—
54
54
12:00
Fewer than 200 measured departures
—
118
120
13:00
83.2%
5.0 min
534
542
14:00
Fewer than 200 measured departures
—
176
176
15:00
Fewer than 200 measured departures
—
67
67
16:00
Fewer than 200 measured departures
—
67
67
17:00
Fewer than 200 measured departures
—
72
72
18:00
Fewer than 200 measured departures
—
75
75
19:00
Fewer than 200 measured departures
—
195
195
20:00
83.0%
0.6 min
200
200
21:00
84.4%
-0.9 min
270
271
22:00
Fewer than 200 measured departures
—
100
100
23:00
94.5%
-4.8 min
219
221
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
5.81.5-2.8
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
6303150
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
85.0%
5.8 min
628
630
Tuesday
89.9%
0.8 min
593
600
Wednesday
91.0%
-2.0 min
567
572
Thursday
88.7%
-0.5 min
604
611
Friday
90.3%
-2.2 min
609
615
Saturday
90.7%
-2.8 min
528
534
Sunday
90.6%
-1.7 min
585
588
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
5.20.2-4.8
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
5362680
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
86.6%
4.7 min
477
486
Feb
88.9%
-1.6 min
486
488
Mar
85.5%
5.2 min
532
536
Apr
93.6%
-4.0 min
486
491
May
93.1%
-4.8 min
408
408
Jun
91.5%
-1.1 min
330
330
Jul
86.5%
4.4 min
326
328
Aug
Fewer than 200 measured departures
—
136
136
Sep
Fewer than 200 measured departures
—
119
120
Oct
92.1%
-3.6 min
291
293
Nov
92.3%
-4.6 min
286
294
Dec
84.0%
3.5 min
237
240
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 time88.6%3,678
Delayed >15 min10.5%436
Cancelled0.9%36
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.