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 delay05:00–06:00-5.2min · 225 recorded · 225 measured
Gap to highest-delay hour16.7min05:00 ↔ 17:00
Recorded flights3,341ANC–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
11.53.2-5.2
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
6133070
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
—
39
39
01:00
89.5%
1.5 min
612
613
02:00
Fewer than 200 measured departures
—
1
1
03:00
No observations
—
—
—
04:00
Fewer than 200 measured departures
—
3
3
05:00
95.6%
-5.2 min
225
225
06:00
No observations
—
—
—
07:00
Fewer than 200 measured departures
—
114
114
08:00
Fewer than 200 measured departures
—
44
44
09:00
88.7%
4.9 min
364
364
10:00
84.8%
6.3 min
434
435
11:00
Fewer than 200 measured departures
—
153
153
12:00
Fewer than 200 measured departures
—
172
172
13:00
No observations
—
—
—
14:00
83.4%
8.8 min
295
295
15:00
Fewer than 200 measured departures
—
18
19
16:00
Fewer than 200 measured departures
—
79
79
17:00
79.0%
11.5 min
371
371
18:00
Fewer than 200 measured departures
—
1
1
19:00
No observations
—
—
—
20:00
Fewer than 200 measured departures
—
38
38
21:00
81.6%
6.9 min
294
295
22:00
Fewer than 200 measured departures
—
80
80
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
7.53.70.0
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
4882440
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
87.9%
4.5 min
486
486
Tuesday
87.6%
3.2 min
475
475
Wednesday
87.8%
3.9 min
468
468
Thursday
83.5%
7.5 min
484
485
Friday
84.4%
6.2 min
482
483
Saturday
85.5%
6.2 min
455
456
Sunday
86.5%
6.4 min
487
488
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
11.55.70.0
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
4322160
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
Fewer than 200 measured departures
—
198
198
Feb
86.6%
4.3 min
216
218
Mar
88.8%
4.6 min
320
322
Apr
91.1%
1.9 min
246
246
May
86.6%
4.8 min
350
350
Jun
85.4%
6.7 min
419
419
Jul
83.1%
7.7 min
432
432
Aug
Fewer than 200 measured departures
—
187
187
Sep
Fewer than 200 measured departures
—
180
180
Oct
88.0%
5.1 min
274
274
Nov
90.8%
0.4 min
272
272
Dec
74.5%
11.5 min
243
243
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 time86.1%2,875
Delayed >15 min13.8%462
Cancelled0.1%4
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.