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 delay07:00–08:001.0min · 260 recorded · 258 measured
Gap to highest-delay hour7.6min07:00 ↔ 12:00
Recorded flights1,674MHT–ORD
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
8.64.30.0
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
2791400
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
No observations
—
—
—
06:00
Fewer than 200 measured departures
—
58
58
07:00
95.0%
1.0 min
258
260
08:00
89.3%
2.4 min
279
279
09:00
Fewer than 200 measured departures
—
5
5
10:00
No observations
—
—
—
11:00
No observations
—
—
—
12:00
81.3%
8.6 min
278
279
13:00
Fewer than 200 measured departures
—
151
152
14:00
Fewer than 200 measured departures
—
62
65
15:00
Fewer than 200 measured departures
—
25
25
16:00
Fewer than 200 measured departures
—
1
1
17:00
Fewer than 200 measured departures
—
155
159
18:00
Fewer than 200 measured departures
—
126
133
19:00
Fewer than 200 measured departures
—
91
93
20:00
Fewer than 200 measured departures
—
157
165
21:00
No observations
—
—
—
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
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Average departure delayPartial coverage: only airlines that report on-time data to the US DOT
13.06.50.0
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
2581290
MonTueWedThuFriSatSun
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View the figures
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
82.1%
7.5 min
246
254
Tuesday
88.5%
3.5 min
218
219
Wednesday
79.3%
10.0 min
222
226
Thursday
85.7%
5.4 min
252
258
Friday
84.8%
3.7 min
256
258
Saturday
82.6%
8.8 min
201
205
Sunday
80.5%
13.0 min
251
254
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
10.15.10.0
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
3341670
JanFebMarAprMayJunJulAugSepOctNovDec
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View the figures
Month of year
On-time departures
Average departure delay
With departure time
Recorded flights
Jan
No observations
—
—
—
Feb
No observations
—
—
—
Mar
No observations
—
—
—
Apr
Fewer than 200 measured departures
—
141
143
May
84.9%
6.5 min
291
293
Jun
82.2%
7.7 min
314
324
Jul
83.0%
10.1 min
324
334
Aug
Fewer than 200 measured departures
—
158
162
Sep
Fewer than 200 measured departures
—
172
172
Oct
83.6%
4.7 min
232
232
Nov
Fewer than 200 measured departures
—
14
14
Dec
No observations
—
—
—
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 time82.0%1,372
Delayed >15 min16.4%274
Cancelled1.7%28
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.