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 · Dec 12, 2024 → Jul 31, 2026
Lowest average delay08:00–09:006.8min · 405 recorded · 401 measured
Gap to highest-delay hour21.6min08:00 ↔ 13:00
Recorded flights1,597FCA–ORD
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
28.414.20.0
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
4052030
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
No observations
—
—
—
07:00
No observations
—
—
—
08:00
88.3%
6.8 min
401
405
09:00
Fewer than 200 measured departures
—
185
187
10:00
Fewer than 200 measured departures
—
55
55
11:00
No observations
—
—
—
12:00
82.3%
17.8 min
339
340
13:00
67.2%
28.4 min
344
347
14:00
No observations
—
—
—
15:00
Fewer than 200 measured departures
—
1
1
16:00
Fewer than 200 measured departures
—
179
181
17:00
Fewer than 200 measured departures
—
6
6
18:00
No observations
—
—
—
19:00
Fewer than 200 measured departures
—
68
75
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
26.013.00.0
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
2751380
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
73.7%
22.9 min
232
240
Tuesday
Fewer than 200 measured departures
—
176
178
Wednesday
Fewer than 200 measured departures
—
176
176
Thursday
80.4%
21.4 min
219
221
Friday
75.5%
17.8 min
241
244
Saturday
72.8%
24.3 min
272
275
Sunday
74.4%
26.0 min
262
263
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
27.013.50.0
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
3861930
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
36
36
Feb
Fewer than 200 measured departures
—
40
40
Mar
Fewer than 200 measured departures
—
62
64
Apr
Fewer than 200 measured departures
—
8
8
May
Fewer than 200 measured departures
—
86
86
Jun
69.7%
27.0 min
366
368
Jul
71.2%
25.6 min
375
386
Aug
79.7%
26.3 min
226
230
Sep
Fewer than 200 measured departures
—
191
191
Oct
Fewer than 200 measured departures
—
116
116
Nov
Fewer than 200 measured departures
—
2
2
Dec
Fewer than 200 measured departures
—
70
70
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 time75.3%1,203
Delayed >15 min23.5%375
Cancelled1.2%19
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.