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 delay14:00–15:0010.9min · 560 recorded · 549 measured
Gap to highest-delay hour15.4min14:00 ↔ 19:00
Recorded flights2,620AMA–DEN
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
26.313.20.0
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
6153080
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
—
1
1
07:00
Fewer than 200 measured departures
—
53
56
08:00
86.1%
12.9 min
599
602
09:00
Fewer than 200 measured departures
—
20
20
10:00
Fewer than 200 measured departures
—
22
22
11:00
No observations
—
—
—
12:00
Fewer than 200 measured departures
—
1
1
13:00
Fewer than 200 measured departures
—
133
134
14:00
77.6%
10.9 min
549
560
15:00
No observations
—
—
—
16:00
Fewer than 200 measured departures
—
6
6
17:00
68.6%
25.0 min
586
603
18:00
No observations
—
—
—
19:00
68.9%
26.3 min
604
615
20:00
No observations
—
—
—
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
26.513.20.0
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
3921960
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
74.6%
16.2 min
389
392
Tuesday
79.0%
14.7 min
376
383
Wednesday
75.7%
18.7 min
379
382
Thursday
79.2%
14.8 min
385
389
Friday
75.9%
22.5 min
373
392
Saturday
72.3%
26.5 min
289
295
Sunday
75.7%
14.4 min
383
387
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
28.614.30.0
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
2881440
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
75.6%
18.5 min
229
239
Feb
73.1%
19.3 min
212
216
Mar
77.4%
13.9 min
230
242
Apr
80.4%
13.6 min
230
232
May
72.9%
16.9 min
284
288
Jun
70.3%
28.6 min
259
260
Jul
73.2%
25.9 min
239
240
Aug
Fewer than 200 measured departures
—
119
120
Sep
Fewer than 200 measured departures
—
112
112
Oct
Fewer than 200 measured departures
—
196
196
Nov
83.6%
6.6 min
219
230
Dec
83.3%
11.0 min
245
245
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 time74.8%1,961
Delayed >15 min23.4%613
Cancelled1.8%46
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.