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 delay06:00–07:00-2.6min · 657 recorded · 657 measured
Gap to highest-delay hour3.4min06:00 ↔ 15:00
Recorded flights3,878PSP–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
1.0-0.8-2.6
00:0003:0006:0009:0012:0015:0018:0021:00
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Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
6573290
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
97.0%
-2.6 min
657
657
07:00
Fewer than 200 measured departures
—
1
1
08:00
No observations
—
—
—
09:00
No observations
—
—
—
10:00
97.1%
-1.3 min
350
353
11:00
91.5%
0.8 min
304
305
12:00
94.6%
-1.3 min
484
487
13:00
Fewer than 200 measured departures
—
165
166
14:00
Fewer than 200 measured departures
—
3
3
15:00
91.7%
0.8 min
624
625
16:00
Fewer than 200 measured departures
—
84
85
17:00
92.2%
-0.1 min
540
540
18:00
No observations
—
—
—
19:00
No observations
—
—
—
20:00
91.7%
0.4 min
638
638
21:00
Fewer than 200 measured departures
—
18
18
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
5.82.1-1.6
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
5642820
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
93.2%
-1.6 min
562
564
Tuesday
94.6%
-1.3 min
556
556
Wednesday
94.2%
-0.4 min
554
554
Thursday
93.0%
0.2 min
546
548
Friday
93.1%
0.7 min
552
554
Saturday
89.8%
5.8 min
538
540
Sunday
92.5%
0.1 min
560
562
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
10.23.3-3.6
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
3721860
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
88.7%
4.6 min
364
368
Feb
85.9%
10.2 min
334
336
Mar
91.7%
1.1 min
372
372
Apr
94.2%
0.2 min
360
360
May
94.1%
1.5 min
372
372
Jun
94.7%
-3.6 min
360
360
Jul
93.8%
-0.9 min
368
368
Aug
Fewer than 200 measured departures
—
182
182
Sep
Fewer than 200 measured departures
—
170
170
Oct
94.9%
-1.6 min
296
296
Nov
94.6%
-2.4 min
334
338
Dec
94.1%
-0.9 min
356
356
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 time92.7%3,595
Delayed >15 min7.0%273
Cancelled0.3%10
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.