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 delay22:00–23:002.6min · 252 recorded · 249 measured
Gap to highest-delay hour19.8min22:00 ↔ 18:00
Recorded flights1,498CLT–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
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
22.411.20.0
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
4932470
00:0003:0006:0009:0012:0015:0018:0021:00
Hover, tap or focus a point to see its value, sample and source.
View the figures
Departure hour
On-time departures
Average departure delay
With departure time
Recorded flights
00:00
Fewer than 200 measured departures
—
1
1
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
Fewer than 200 measured departures
—
98
98
07:00
Fewer than 200 measured departures
—
1
1
08:00
No observations
—
—
—
09:00
Fewer than 200 measured departures
—
1
1
10:00
Fewer than 200 measured departures
—
16
16
11:00
Fewer than 200 measured departures
—
3
3
12:00
No observations
—
—
—
13:00
Fewer than 200 measured departures
—
18
18
14:00
No observations
—
—
—
15:00
Fewer than 200 measured departures
—
76
76
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
89
92
18:00
65.3%
22.4 min
490
493
19:00
No observations
—
—
—
20:00
No observations
—
—
—
21:00
74.9%
14.3 min
351
358
22:00
86.8%
2.6 min
249
252
23:00
Fewer than 200 measured departures
—
19
19
Day of week
On-time departuresPartial coverage: only airlines that report on-time data to the US DOT
100.050.00.0
MonTueWedThuFriSatSun
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
26.613.30.0
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
2191100
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
76.5%
14.2 min
213
214
Tuesday
76.6%
13.8 min
205
209
Wednesday
80.0%
8.0 min
210
211
Thursday
71.0%
14.8 min
210
214
Friday
73.3%
11.9 min
217
219
Saturday
70.0%
26.6 min
213
215
Sunday
75.7%
13.4 min
214
216
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
28.714.30.0
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
2461230
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
—
72
78
Feb
Fewer than 200 measured departures
—
88
88
Mar
Fewer than 200 measured departures
—
124
124
Apr
Fewer than 200 measured departures
—
120
120
May
Fewer than 200 measured departures
—
143
145
Jun
68.4%
24.0 min
225
227
Jul
60.3%
28.7 min
242
246
Aug
Fewer than 200 measured departures
—
70
72
Sep
Fewer than 200 measured departures
—
60
60
Oct
Fewer than 200 measured departures
—
102
102
Nov
Fewer than 200 measured departures
—
118
118
Dec
Fewer than 200 measured departures
—
118
118
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 time73.9%1,107
Delayed >15 min25.0%375
Cancelled1.1%16
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.