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 delay14:00–15:00-2.7min · 285 recorded · 283 measured
Gap to highest-delay hour8.0min14:00 ↔ 20:00
Recorded flights1,932SLC–TUL
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
5.31.3-2.7
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
6113060
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
No observations
—
—
—
01:00
No observations
—
—
—
02:00
No observations
—
—
—
03:00
No observations
—
—
—
04:00
No observations
—
—
—
05:00
No observations
—
—
—
06:00
No observations
—
—
—
07:00
Fewer than 200 measured departures
—
47
47
08:00
92.6%
-0.4 min
605
611
09:00
Fewer than 200 measured departures
—
1
1
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
No observations
—
—
—
13:00
Fewer than 200 measured departures
—
28
28
14:00
95.8%
-2.7 min
283
285
15:00
No observations
—
—
—
16:00
No observations
—
—
—
17:00
Fewer than 200 measured departures
—
160
161
18:00
88.9%
2.3 min
305
308
19:00
No observations
—
—
—
20:00
88.0%
5.3 min
473
478
21:00
Fewer than 200 measured departures
—
13
13
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
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
3.31.70.0
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
2821410
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
90.4%
0.8 min
282
282
Tuesday
91.2%
0.1 min
272
276
Wednesday
90.8%
3.3 min
273
278
Thursday
91.7%
2.5 min
278
280
Friday
88.6%
1.2 min
281
282
Saturday
91.3%
1.9 min
254
256
Sunday
92.0%
0.8 min
275
278
Month of year
Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
Recorded flightsPartial coverage: only airlines that report on-time data to the US DOT
186930
JanFebMarAprMayJunJulAugSepOctNovDec
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No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.
View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
Fewer than 200 measured departures
—
172
176
Feb
Fewer than 200 measured departures
—
145
156
Mar
Fewer than 200 measured departures
—
176
176
Apr
Fewer than 200 measured departures
—
176
176
May
Fewer than 200 measured departures
—
186
186
Jun
Fewer than 200 measured departures
—
180
180
Jul
Fewer than 200 measured departures
—
186
186
Aug
Fewer than 200 measured departures
—
124
124
Sep
Fewer than 200 measured departures
—
74
74
Oct
Fewer than 200 measured departures
—
142
142
Nov
Fewer than 200 measured departures
—
174
176
Dec
Fewer than 200 measured departures
—
180
180
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 time90.1%1,740
Delayed >15 min9.1%175
Cancelled0.9%17
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.