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 delay09:00–10:000.1min · 369 recorded · 363 measured
Gap to highest-delay hour17.9min09:00 ↔ 17:00
Recorded flights3,005JFK–ORF
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
18.09.00.0
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
3691850
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
Fewer than 200 measured departures
—
187
198
06:00
Fewer than 200 measured departures
—
175
178
07:00
Fewer than 200 measured departures
—
68
68
08:00
Fewer than 200 measured departures
—
50
52
09:00
90.6%
0.1 min
363
369
10:00
Fewer than 200 measured departures
—
135
135
11:00
91.4%
1.1 min
303
310
12:00
Fewer than 200 measured departures
—
172
172
13:00
Fewer than 200 measured departures
—
9
10
14:00
88.8%
2.5 min
259
266
15:00
77.8%
11.0 min
243
264
16:00
80.2%
12.9 min
252
260
17:00
75.6%
18.0 min
274
312
18:00
Fewer than 200 measured departures
—
59
75
19:00
Fewer than 200 measured departures
—
45
46
20:00
Fewer than 200 measured departures
—
48
50
21:00
Fewer than 200 measured departures
—
194
203
22:00
Fewer than 200 measured departures
—
35
37
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
10.15.00.0
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
4822410
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
86.7%
2.4 min
397
427
Tuesday
85.6%
5.7 min
403
420
Wednesday
87.0%
5.0 min
400
414
Thursday
83.4%
10.1 min
397
411
Friday
86.6%
4.7 min
402
416
Saturday
86.3%
7.1 min
460
482
Sunday
85.7%
7.0 min
412
435
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
26.012.5-1.0
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
4182090
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
93.3%
-1.0 min
254
275
Feb
Fewer than 200 measured departures
—
195
214
Mar
85.8%
5.7 min
232
236
Apr
89.7%
1.6 min
243
243
May
Fewer than 200 measured departures
—
182
186
Jun
70.2%
26.0 min
201
220
Jul
71.1%
22.9 min
204
248
Aug
Fewer than 200 measured departures
—
122
124
Sep
Fewer than 200 measured departures
—
118
120
Oct
91.1%
0.1 min
327
328
Nov
91.6%
-0.8 min
406
418
Dec
81.7%
13.1 min
387
393
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 time82.1%2,466
Delayed >15 min13.5%405
Cancelled4.5%134
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.