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 delay09:00–10:006.9min · 247 recorded · 242 measured
Gap to highest-delay hour28.2min09:00 ↔ 14:00
Recorded flights1,506EWR–EYW
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
35.117.50.0
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
4362180
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
No observations
—
—
—
07:00
Fewer than 200 measured departures
—
16
16
08:00
Fewer than 200 measured departures
—
49
51
09:00
89.3%
6.9 min
242
247
10:00
83.8%
10.1 min
290
291
11:00
Fewer than 200 measured departures
—
53
53
12:00
Fewer than 200 measured departures
—
46
47
13:00
Fewer than 200 measured departures
—
147
150
14:00
74.8%
35.1 min
425
436
15:00
Fewer than 200 measured departures
—
120
120
16:00
Fewer than 200 measured departures
—
15
18
17:00
Fewer than 200 measured departures
—
75
77
18:00
No observations
—
—
—
19:00
No observations
—
—
—
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
34.717.40.0
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
2161080
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
80.2%
18.4 min
207
216
Tuesday
85.7%
11.8 min
210
214
Wednesday
90.1%
0.9 min
211
212
Thursday
82.6%
12.5 min
213
216
Friday
79.4%
12.8 min
214
216
Saturday
74.5%
34.7 min
216
216
Sunday
76.3%
25.2 min
207
216
Month of year
Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
186930
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
131
134
Feb
Fewer than 200 measured departures
—
134
146
Mar
Fewer than 200 measured departures
—
184
186
Apr
Fewer than 200 measured departures
—
178
178
May
Fewer than 200 measured departures
—
122
124
Jun
Fewer than 200 measured departures
—
120
120
Jul
Fewer than 200 measured departures
—
122
124
Aug
Fewer than 200 measured departures
—
62
62
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
98
102
Nov
Fewer than 200 measured departures
—
120
120
Dec
Fewer than 200 measured departures
—
147
150
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 time79.7%1,201
Delayed >15 min18.4%277
Cancelled1.9%28
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.