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 delay11:00–12:00-2.6min · 222 recorded · 222 measured
Gap to highest-delay hour14.0min11:00 ↔ 21:00
Recorded flights4,086FCA–SLC
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
11.44.4-2.6
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
6423210
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
92.8%
10.6 min
640
642
06:00
No observations
—
—
—
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
95.9%
-2.3 min
636
640
10:00
Fewer than 200 measured departures
—
62
62
11:00
95.5%
-2.6 min
222
222
12:00
94.5%
0.5 min
505
510
13:00
Fewer than 200 measured departures
—
146
146
14:00
Fewer than 200 measured departures
—
6
6
15:00
89.6%
0.8 min
607
609
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
190
192
18:00
91.3%
1.0 min
415
416
19:00
No observations
—
—
—
20:00
No observations
—
—
—
21:00
83.5%
11.4 min
413
415
22:00
84.5%
6.8 min
226
226
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
6.03.00.0
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
6103050
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
92.5%
0.8 min
609
610
Tuesday
92.9%
1.2 min
576
576
Wednesday
91.0%
6.0 min
569
576
Thursday
90.4%
4.0 min
574
576
Friday
91.8%
2.4 min
609
610
Saturday
91.6%
3.0 min
534
538
Sunday
91.5%
3.2 min
597
600
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
15.46.1-3.2
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
4702350
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
89.6%
15.4 min
346
350
Feb
87.2%
9.3 min
312
312
Mar
91.8%
-0.9 min
364
366
Apr
94.2%
-2.2 min
360
360
May
91.8%
1.1 min
452
452
Jun
90.6%
0.9 min
470
470
Jul
92.1%
2.1 min
380
380
Aug
96.5%
-3.2 min
202
202
Sep
Fewer than 200 measured departures
—
180
180
Oct
94.0%
2.0 min
302
302
Nov
93.3%
2.3 min
342
352
Dec
87.4%
8.2 min
358
360
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 time91.3%3,729
Delayed >15 min8.3%339
Cancelled0.4%18
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.