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 · 426 recorded · 426 measured
Gap to highest-delay hour12.3min06:00 ↔ 11:00
Recorded flights9,709LAX–RNO
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
9.73.6-2.6
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
9364680
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
Fewer than 200 measured departures
—
70
70
06:00
94.8%
-2.6 min
426
426
07:00
92.7%
1.4 min
823
827
08:00
92.7%
-0.8 min
574
575
09:00
90.3%
1.8 min
619
626
10:00
92.6%
-0.3 min
895
897
11:00
84.3%
9.7 min
351
357
12:00
87.7%
3.5 min
928
936
13:00
85.9%
5.9 min
490
496
14:00
82.4%
5.6 min
290
291
15:00
86.2%
5.1 min
767
770
16:00
83.5%
6.8 min
570
576
17:00
79.3%
8.6 min
687
689
18:00
82.6%
7.0 min
379
383
19:00
85.8%
3.1 min
550
552
20:00
85.5%
6.3 min
470
470
21:00
84.9%
5.1 min
570
572
22:00
Fewer than 200 measured departures
—
195
196
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
7.33.70.0
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
1,5017510
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
88.5%
1.4 min
1,449
1,466
Tuesday
91.7%
1.3 min
1,261
1,268
Wednesday
90.6%
0.9 min
1,281
1,283
Thursday
86.7%
4.9 min
1,443
1,446
Friday
84.3%
6.3 min
1,435
1,442
Saturday
88.0%
3.6 min
1,300
1,303
Sunday
84.0%
7.3 min
1,485
1,501
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
8.53.3-1.9
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
9404700
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
87.6%
3.5 min
890
893
Feb
85.2%
5.9 min
844
874
Mar
87.6%
7.3 min
937
940
Apr
92.4%
-1.9 min
842
842
May
89.2%
1.2 min
855
857
Jun
85.8%
3.5 min
897
897
Jul
85.5%
4.2 min
928
928
Aug
87.7%
5.5 min
502
503
Sep
91.8%
-1.2 min
426
427
Oct
87.8%
4.3 min
737
737
Nov
89.7%
2.2 min
903
916
Dec
82.6%
8.5 min
893
895
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 time87.0%8,450
Delayed >15 min12.4%1,204
Cancelled0.6%55
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.