Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.
US domestic sectors recorded by BTS
Source: the US BTS · Oct 12, 2024 → Jul 31, 2026
Lowest average delay11:00–12:003.3min · 344 recorded · 340 measured
Gap to highest-delay hour22.0min11:00 ↔ 19:00
Recorded flights1,129North Platte Regional Airport Lee Bird Field
Departure hour
On-time departuresPartial coverage: domestic flights only
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: domestic flights only
25.312.70.0
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: domestic flights only
4722360
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
88.8%
20.7 min
205
206
07:00
No observations
—
—
—
08:00
No observations
—
—
—
09:00
Fewer than 200 measured departures
—
1
1
10:00
Fewer than 200 measured departures
—
106
106
11:00
91.2%
3.3 min
340
344
12:00
No observations
—
—
—
13:00
No observations
—
—
—
14:00
No observations
—
—
—
15:00
No observations
—
—
—
16:00
No observations
—
—
—
17:00
No observations
—
—
—
18:00
No observations
—
—
—
19:00
71.0%
25.3 min
458
472
20:00
No observations
—
—
—
21:00
No observations
—
—
—
22:00
No observations
—
—
—
23:00
No observations
—
—
—
Day of week
Recorded flightsPartial coverage: domestic flights only
188940
MonTueWedThuFriSatSun
Hover, tap or focus a point to see its value, sample and source.
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
Day of week
On-time departures
Average departure delay
With departure time
Recorded flights
Monday
Fewer than 200 measured departures
—
186
188
Tuesday
Fewer than 200 measured departures
—
96
97
Wednesday
Fewer than 200 measured departures
—
95
96
Thursday
Fewer than 200 measured departures
—
182
184
Friday
Fewer than 200 measured departures
—
183
188
Saturday
Fewer than 200 measured departures
—
183
188
Sunday
Fewer than 200 measured departures
—
185
188
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: domestic flights only
108540
JanFebMarAprMayJunJulAugSepOctNovDec
Hover, tap or focus a point to see its value, sample and source.
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
—
104
106
Feb
Fewer than 200 measured departures
—
95
96
Mar
Fewer than 200 measured departures
—
104
107
Apr
Fewer than 200 measured departures
—
100
101
May
Fewer than 200 measured departures
—
106
108
Jun
Fewer than 200 measured departures
—
103
103
Jul
Fewer than 200 measured departures
—
101
105
Aug
Fewer than 200 measured departures
—
52
54
Sep
Fewer than 200 measured departures
—
51
51
Oct
Fewer than 200 measured departures
—
87
87
Nov
Fewer than 200 measured departures
—
101
104
Dec
Fewer than 200 measured departures
—
106
107
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 time80.7%911
Delayed >15 min17.6%199
Cancelled1.7%19
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.
Environment
Air pollutants at the airport (EPA estimate)
Modelled estimate, not a measurement: aircraft below 3,000 ft (landing and take-off), ground support equipment and auxiliary power units, plus any stationary sources the state reported at the airport site. Cruise emissions are not included.
In 2023, the US EPA estimated 4.8 tonnes of nitrogen oxides (NOₓ) and 1.6 tonnes of fine particles (PM2.5) from activity at North Platte Regional Airport Lee Bird Field, according to the EPA National Emissions Inventory.
Pollutant
Unit
2017
2020
2023
NOₓ (Nitrogen oxides)
tonnes
31.7
10.4
4.8
CO (Carbon monoxide)
tonnes
113
76.6
70.2
SO₂ (Sulphur dioxide)
tonnes
3.2
1.2
0.71
VOC (Volatile organic compounds)
tonnes
13.5
7.7
4.1
PM2.5 (Fine particles)
tonnes
3.2
1.7
1.6
PM10 (Particulate matter)
tonnes
3.7
2.0
1.9
Lead
kg
67.3
48.8
57.6
CO₂ (Carbon dioxide)
tonnes
254
5,360
—
The inventory is published every three years. Coverage changes between editions (about 19,300 airport sites in 2017, 6,000 in 2020, 12,700 in 2023), 2020 reflects the pandemic drop in traffic, and EPA updates its aircraft model between editions — so the columns are not a trend (Los Angeles: 3,562 tonnes of NOₓ in 2017, 8,810 in 2023). CO₂ is only reported for some sites in 2017, for all sites in 2020, and not at all in 2023. EPA publishes US customary units; converted here to metric tonnes (× 0.907) and, for lead, kilograms.