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 delay06:00–07:006.5min · 615 recorded · 608 measured
Gap to highest-delay hour9.7min06:00 ↔ 19:00
Recorded flights1,445ATW–DFW
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
16.28.10.0
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
Fewer than 200 measured departures
—
36
37
06:00
88.8%
6.5 min
608
615
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
Fewer than 200 measured departures
—
66
67
10:00
Fewer than 200 measured departures
—
2
2
11:00
Fewer than 200 measured departures
—
1
1
12:00
Fewer than 200 measured departures
—
68
69
13:00
Fewer than 200 measured departures
—
2
2
14:00
Fewer than 200 measured departures
—
4
4
15:00
No observations
—
—
—
16:00
Fewer than 200 measured departures
—
1
1
17:00
Fewer than 200 measured departures
—
1
1
18:00
Fewer than 200 measured departures
—
127
127
19:00
77.7%
16.2 min
220
224
20:00
77.7%
12.7 min
292
295
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
13.26.60.0
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
2101050
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
83.8%
8.9 min
204
207
Tuesday
89.1%
10.8 min
202
203
Wednesday
85.2%
6.1 min
210
210
Thursday
83.7%
6.8 min
203
206
Friday
84.7%
13.1 min
203
205
Saturday
80.7%
13.2 min
202
205
Sunday
80.9%
12.1 min
204
209
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
175880
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
—
118
124
Feb
Fewer than 200 measured departures
—
112
112
Mar
Fewer than 200 measured departures
—
118
124
Apr
Fewer than 200 measured departures
—
123
124
May
Fewer than 200 measured departures
—
146
146
Jun
Fewer than 200 measured departures
—
170
172
Jul
Fewer than 200 measured departures
—
175
175
Aug
Fewer than 200 measured departures
—
62
62
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
102
102
Nov
Fewer than 200 measured departures
—
120
120
Dec
Fewer than 200 measured departures
—
122
124
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 time83.0%1,200
Delayed >15 min15.8%228
Cancelled1.2%17
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.