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 delay15:00–16:003.7min · 459 recorded · 458 measured
Gap to highest-delay hour8.3min15:00 ↔ 18:00
Recorded flights1,731OMA–SEA
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
12.06.00.0
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
4592300
00:0003:0006:0009:0012:0015:0018:0021:00
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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
—
138
139
07:00
Fewer than 200 measured departures
—
155
155
08:00
Fewer than 200 measured departures
—
177
177
09:00
83.1%
6.2 min
402
403
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
No observations
—
—
—
13:00
Fewer than 200 measured departures
—
29
29
14:00
Fewer than 200 measured departures
—
107
107
15:00
84.5%
3.7 min
458
459
16:00
Fewer than 200 measured departures
—
28
28
17:00
No observations
—
—
—
18:00
70.9%
12.0 min
234
234
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
8.74.30.0
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
2601300
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
79.7%
5.4 min
256
256
Tuesday
88.4%
4.8 min
224
224
Wednesday
89.6%
2.2 min
250
252
Thursday
85.0%
3.1 min
260
260
Friday
82.6%
6.9 min
259
259
Saturday
86.6%
3.0 min
223
224
Sunday
82.0%
8.7 min
256
256
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
12.56.30.0
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
2461230
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
Fewer than 200 measured departures
—
96
96
Feb
Fewer than 200 measured departures
—
98
98
Mar
Fewer than 200 measured departures
—
122
124
Apr
Fewer than 200 measured departures
—
129
129
May
92.0%
1.2 min
213
213
Jun
75.8%
12.5 min
240
240
Jul
84.9%
4.8 min
245
246
Aug
Fewer than 200 measured departures
—
124
124
Sep
Fewer than 200 measured departures
—
120
120
Oct
Fewer than 200 measured departures
—
107
107
Nov
Fewer than 200 measured departures
—
120
120
Dec
Fewer than 200 measured departures
—
114
114
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 time84.6%1,464
Delayed >15 min15.3%264
Cancelled0.2%3
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.