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 delay05:00–06:005.2min · 576 recorded · 567 measured
Gap to highest-delay hour29.3min05:00 ↔ 22:00
Recorded flights8,568DFW–PDX
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
34.517.20.0
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
8404200
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
Fewer than 200 measured departures
—
165
169
01:00
Fewer than 200 measured departures
—
1
1
02:00
No observations
—
—
—
03:00
No observations
—
—
—
04:00
No observations
—
—
—
05:00
89.1%
5.2 min
567
576
06:00
89.2%
7.5 min
295
303
07:00
82.2%
11.0 min
826
840
08:00
75.7%
15.6 min
518
522
09:00
76.6%
10.0 min
261
264
10:00
77.0%
12.8 min
687
693
11:00
71.4%
22.0 min
742
755
12:00
76.5%
17.3 min
281
288
13:00
62.1%
31.8 min
433
439
14:00
71.3%
18.1 min
320
335
15:00
66.4%
22.0 min
402
407
16:00
62.9%
23.2 min
407
419
17:00
69.2%
18.8 min
409
414
18:00
Fewer than 200 measured departures
—
51
52
19:00
62.3%
26.9 min
616
637
20:00
55.8%
25.3 min
428
439
21:00
Fewer than 200 measured departures
—
125
129
22:00
54.9%
34.5 min
255
265
23:00
72.5%
19.7 min
600
621
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
22.711.30.0
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
1,2876440
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
70.3%
22.1 min
1,241
1,264
Tuesday
73.5%
18.3 min
1,154
1,178
Wednesday
77.2%
13.2 min
1,126
1,140
Thursday
69.9%
17.2 min
1,234
1,264
Friday
75.0%
15.1 min
1,221
1,248
Saturday
70.2%
19.8 min
1,162
1,187
Sunday
70.2%
22.7 min
1,251
1,287
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
29.114.50.0
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
8664330
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
74.9%
18.9 min
653
702
Feb
80.7%
12.3 min
622
625
Mar
76.3%
14.1 min
725
732
Apr
76.1%
13.1 min
733
746
May
68.2%
20.5 min
793
810
Jun
63.9%
29.1 min
816
842
Jul
65.6%
22.3 min
845
856
Aug
61.0%
27.9 min
467
481
Sep
76.3%
15.5 min
393
397
Oct
74.8%
19.0 min
695
708
Nov
77.5%
12.8 min
787
803
Dec
73.1%
15.4 min
860
866
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 time70.8%6,062
Delayed >15 min27.2%2,327
Cancelled2.1%179
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.