month stringdate 2025-08-01 00:00:00 2026-07-01 00:00:00 | carrier stringclasses 14
values | flight_number int64 1 9.91k | origin stringclasses 359
values | dest stringclasses 359
values | flights int64 1 31 | cancelled int64 0 21 | diverted int64 0 13 | on_time int64 0 31 | late_30 int64 0 27 | arr_delay_mean float64 -97 1.68k ⌀ | arr_delay_median float64 -97 1.68k ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|---|
2025-08-01 | AA | 1 | JFK | LAX | 31 | 0 | 0 | 30 | 0 | -19.5 | -21 |
2025-08-01 | AA | 10 | LAX | JFK | 31 | 0 | 0 | 29 | 0 | -17.1 | -22 |
2025-08-01 | AA | 1,002 | MSN | CLT | 31 | 0 | 0 | 29 | 1 | -10.5 | -13 |
2025-08-01 | AA | 1,003 | CLT | MCI | 31 | 0 | 0 | 17 | 13 | 29.5 | 10 |
2025-08-01 | AA | 1,003 | MCI | CLT | 29 | 0 | 0 | 17 | 10 | 18.1 | 1 |
2025-08-01 | AA | 1,004 | BOS | DCA | 26 | 1 | 0 | 16 | 7 | 22.8 | 5 |
2025-08-01 | AA | 1,004 | DFW | MYR | 1 | 0 | 0 | 1 | 0 | 6 | 6 |
2025-08-01 | AA | 1,005 | DFW | BDL | 21 | 0 | 0 | 15 | 4 | 18 | -2 |
2025-08-01 | AA | 1,007 | CLT | PNS | 4 | 0 | 0 | 2 | 2 | 137.5 | 81 |
2025-08-01 | AA | 1,007 | HSV | DFW | 26 | 1 | 0 | 20 | 4 | 3.5 | -4 |
2025-08-01 | AA | 1,007 | STL | DFW | 1 | 0 | 0 | 1 | 0 | -7 | -7 |
2025-08-01 | AA | 1,008 | ATL | DFW | 29 | 1 | 1 | 19 | 6 | 32.6 | 6 |
2025-08-01 | AA | 1,009 | LAX | ORD | 7 | 0 | 0 | 5 | 2 | 84 | -18 |
2025-08-01 | AA | 1,010 | DFW | STL | 30 | 0 | 0 | 16 | 10 | 42.8 | 2 |
2025-08-01 | AA | 1,011 | DFW | SAN | 5 | 0 | 0 | 2 | 3 | 50 | 67 |
2025-08-01 | AA | 1,011 | SAV | CLT | 22 | 0 | 0 | 21 | 1 | 17.5 | -12.5 |
2025-08-01 | AA | 1,012 | CLT | LAX | 28 | 0 | 0 | 25 | 2 | 4.7 | -3 |
2025-08-01 | AA | 1,014 | DFW | TUS | 31 | 0 | 0 | 24 | 6 | 17.5 | -7 |
2025-08-01 | AA | 1,014 | TUS | DFW | 31 | 1 | 1 | 20 | 8 | 74 | 1 |
2025-08-01 | AA | 1,015 | BTV | DCA | 5 | 1 | 0 | 4 | 0 | -2.2 | -1 |
2025-08-01 | AA | 1,015 | DCA | BOS | 26 | 0 | 0 | 18 | 6 | 8.7 | 2 |
2025-08-01 | AA | 1,017 | CLT | ILM | 30 | 0 | 0 | 24 | 4 | 1.5 | -5 |
2025-08-01 | AA | 1,018 | PHX | DFW | 30 | 0 | 1 | 27 | 2 | -5.4 | -11 |
2025-08-01 | AA | 1,019 | SJC | DFW | 31 | 1 | 1 | 24 | 3 | 50.7 | -15 |
2025-08-01 | AA | 102 | HNL | DFW | 26 | 0 | 0 | 22 | 1 | -2.6 | -2.5 |
2025-08-01 | AA | 1,020 | DTW | MIA | 31 | 0 | 0 | 29 | 2 | 4.3 | -6 |
2025-08-01 | AA | 1,021 | SMF | DFW | 31 | 0 | 0 | 26 | 3 | 1.2 | -6 |
2025-08-01 | AA | 1,023 | LGA | CLT | 31 | 1 | 0 | 28 | 1 | -18 | -21 |
2025-08-01 | AA | 1,024 | LAX | MCO | 31 | 0 | 1 | 18 | 7 | 16.6 | 10.5 |
2025-08-01 | AA | 1,025 | MIA | CHS | 26 | 0 | 0 | 22 | 4 | 15.7 | -9 |
2025-08-01 | AA | 1,025 | TUS | DFW | 5 | 0 | 0 | 3 | 2 | 39.6 | -5 |
2025-08-01 | AA | 1,029 | DFW | PIT | 15 | 0 | 0 | 10 | 4 | 26.2 | 5 |
2025-08-01 | AA | 1,029 | MIA | LGA | 5 | 0 | 0 | 5 | 0 | -25 | -23 |
2025-08-01 | AA | 1,031 | CLT | LAS | 29 | 0 | 1 | 21 | 5 | 9 | -3.5 |
2025-08-01 | AA | 1,032 | AUS | CLT | 26 | 1 | 0 | 23 | 0 | -14.7 | -18 |
2025-08-01 | AA | 1,032 | CLT | TPA | 5 | 0 | 0 | 2 | 1 | 20.8 | 16 |
2025-08-01 | AA | 1,033 | CLT | IND | 29 | 2 | 0 | 13 | 10 | 21.3 | 16 |
2025-08-01 | AA | 1,035 | ABQ | DFW | 31 | 0 | 0 | 21 | 10 | 43.5 | -6 |
2025-08-01 | AA | 1,036 | DFW | MCI | 31 | 0 | 0 | 12 | 19 | 90.9 | 46 |
2025-08-01 | AA | 1,037 | ABQ | ORD | 1 | 0 | 0 | 1 | 0 | -19 | -19 |
2025-08-01 | AA | 1,037 | BNA | ORD | 1 | 0 | 0 | 1 | 0 | -19 | -19 |
2025-08-01 | AA | 1,037 | DCA | MSN | 1 | 0 | 0 | 1 | 0 | 1 | 1 |
2025-08-01 | AA | 1,037 | DCA | MSY | 1 | 0 | 0 | 0 | 0 | 24 | 24 |
2025-08-01 | AA | 1,037 | DFW | SAN | 4 | 0 | 0 | 1 | 3 | 64.8 | 54.5 |
2025-08-01 | AA | 1,037 | LAX | CMH | 5 | 0 | 0 | 4 | 1 | 24.8 | -14 |
2025-08-01 | AA | 1,037 | MSN | DCA | 1 | 0 | 0 | 0 | 0 | 30 | 30 |
2025-08-01 | AA | 1,037 | ORD | BNA | 1 | 0 | 0 | 1 | 0 | -16 | -16 |
2025-08-01 | AA | 1,038 | CLT | ORD | 31 | 0 | 0 | 27 | 1 | -7.5 | -15 |
2025-08-01 | AA | 1,039 | CID | CLT | 31 | 0 | 0 | 27 | 3 | 5.5 | -10 |
2025-08-01 | AA | 1,040 | CHS | DCA | 26 | 0 | 0 | 14 | 10 | 32.4 | 12 |
2025-08-01 | AA | 1,040 | DCA | CHS | 4 | 0 | 0 | 1 | 1 | 19.3 | 18 |
2025-08-01 | AA | 1,040 | DFW | STL | 1 | 0 | 0 | 0 | 1 | 62 | 62 |
2025-08-01 | AA | 1,041 | CLT | AUS | 25 | 0 | 0 | 16 | 7 | 16 | -9 |
2025-08-01 | AA | 1,041 | VPS | DCA | 1 | 0 | 0 | 1 | 0 | -19 | -19 |
2025-08-01 | AA | 1,042 | OMA | CLT | 31 | 0 | 0 | 28 | 2 | -6.3 | -8 |
2025-08-01 | AA | 1,043 | DFW | LGA | 27 | 0 | 0 | 18 | 7 | 15.9 | 5 |
2025-08-01 | AA | 1,043 | LGA | DFW | 5 | 0 | 0 | 4 | 1 | -0.8 | -17 |
2025-08-01 | AA | 1,043 | MSO | DFW | 4 | 1 | 0 | 2 | 1 | 8 | 8 |
2025-08-01 | AA | 1,044 | CLT | PHX | 31 | 0 | 0 | 22 | 2 | 1.5 | -2 |
2025-08-01 | AA | 1,045 | MIA | ATL | 31 | 0 | 0 | 13 | 13 | 41.1 | 16 |
2025-08-01 | AA | 1,046 | ATL | MIA | 31 | 1 | 0 | 23 | 4 | 3.1 | -10 |
2025-08-01 | AA | 1,046 | MIA | ATL | 31 | 1 | 0 | 23 | 3 | 4.2 | -6 |
2025-08-01 | AA | 1,047 | IAH | MIA | 31 | 1 | 0 | 27 | 1 | 1.6 | -7 |
2025-08-01 | AA | 1,048 | DFW | BOS | 31 | 0 | 0 | 12 | 15 | 50.3 | 29 |
2025-08-01 | AA | 1,049 | JAC | CLT | 30 | 0 | 0 | 18 | 10 | 25.8 | 7 |
2025-08-01 | AA | 1,050 | ALB | CLT | 26 | 0 | 0 | 24 | 2 | 32.1 | -15 |
2025-08-01 | AA | 1,050 | IND | CLT | 5 | 1 | 0 | 3 | 0 | 8.3 | 6.5 |
2025-08-01 | AA | 1,051 | LAS | JFK | 31 | 0 | 0 | 23 | 8 | 32.3 | -16 |
2025-08-01 | AA | 1,052 | CLT | ORD | 31 | 0 | 0 | 23 | 5 | 11.2 | -7 |
2025-08-01 | AA | 1,054 | MIA | BOS | 31 | 1 | 0 | 21 | 5 | 4.8 | -2 |
2025-08-01 | AA | 1,055 | SAN | DFW | 31 | 2 | 0 | 22 | 5 | 18.4 | -6 |
2025-08-01 | AA | 1,056 | DFW | LGA | 30 | 1 | 0 | 19 | 4 | 6.5 | -2 |
2025-08-01 | AA | 1,056 | LGA | DFW | 30 | 1 | 0 | 20 | 6 | 0.6 | -12 |
2025-08-01 | AA | 1,057 | BOS | PHX | 31 | 0 | 0 | 28 | 1 | -8 | -8 |
2025-08-01 | AA | 1,058 | ROC | CLT | 31 | 0 | 0 | 30 | 1 | -5.3 | -10 |
2025-08-01 | AA | 1,059 | CLT | IAD | 24 | 0 | 0 | 17 | 4 | 21 | 3.5 |
2025-08-01 | AA | 1,059 | DFW | EUG | 5 | 0 | 0 | 2 | 3 | 80.6 | 110 |
2025-08-01 | AA | 1,060 | CLT | LGA | 31 | 0 | 0 | 19 | 8 | 37.2 | 8 |
2025-08-01 | AA | 1,061 | DFW | JAX | 30 | 0 | 0 | 24 | 5 | 9.5 | -2 |
2025-08-01 | AA | 1,061 | JAX | DFW | 31 | 1 | 0 | 19 | 8 | 32.1 | 0 |
2025-08-01 | AA | 1,062 | CLT | DFW | 26 | 2 | 0 | 12 | 6 | 20.1 | 13.5 |
2025-08-01 | AA | 1,062 | DFW | ABQ | 5 | 1 | 0 | 2 | 2 | 25.5 | 19.5 |
2025-08-01 | AA | 1,063 | RIC | CLT | 30 | 1 | 0 | 28 | 1 | -10.1 | -17 |
2025-08-01 | AA | 1,064 | AUS | ORD | 31 | 5 | 0 | 20 | 4 | 21.1 | -7 |
2025-08-01 | AA | 1,065 | BNA | CLT | 31 | 0 | 0 | 27 | 1 | -8.8 | -13 |
2025-08-01 | AA | 1,067 | CLT | MIA | 31 | 0 | 0 | 25 | 2 | 17.9 | -1 |
2025-08-01 | AA | 1,069 | MIA | CLT | 31 | 0 | 0 | 18 | 11 | 24 | 13 |
2025-08-01 | AA | 1,070 | DFW | TPA | 31 | 1 | 0 | 20 | 7 | 15.3 | 2 |
2025-08-01 | AA | 1,070 | TPA | DFW | 5 | 0 | 0 | 3 | 2 | 12.8 | 11 |
2025-08-01 | AA | 1,071 | CLT | PIT | 10 | 0 | 0 | 5 | 5 | 23.9 | 11.5 |
2025-08-01 | AA | 1,071 | CMH | DFW | 2 | 0 | 0 | 1 | 1 | 49 | 49 |
2025-08-01 | AA | 1,072 | CLT | IAD | 2 | 0 | 0 | 2 | 0 | -20.5 | -20.5 |
2025-08-01 | AA | 1,072 | CLT | MKE | 29 | 0 | 1 | 17 | 8 | 19.6 | 3.5 |
2025-08-01 | AA | 1,073 | JFK | LAS | 31 | 0 | 0 | 28 | 2 | 11.7 | -23 |
2025-08-01 | AA | 1,074 | MIA | BOS | 31 | 0 | 0 | 16 | 11 | 46.3 | 14 |
2025-08-01 | AA | 1,075 | LBB | DFW | 26 | 0 | 0 | 21 | 3 | 21.3 | -7 |
2025-08-01 | AA | 1,075 | SAN | DFW | 5 | 0 | 0 | 3 | 2 | 39.2 | -12 |
2025-08-01 | AA | 1,076 | DFW | BNA | 31 | 1 | 0 | 15 | 10 | 34.2 | 14.5 |
2025-08-01 | AA | 1,078 | GSO | CLT | 30 | 0 | 0 | 29 | 0 | -8.3 | -8.5 |
2025-08-01 | AA | 1,079 | PHX | DFW | 31 | 1 | 1 | 20 | 3 | 18.3 | 4 |
US flight punctuality by flight number
Monthly on-time records for every scheduled domestic flight by the largest US airlines, one row per airline, flight number and route per month, for the last 12 months published by the US Bureau of Transportation Statistics (BTS). Updated every month by TripStow.
Readable versions: every flight, route, airport and airline has its own page at tripstow.com/flights, monthly reports at tripstow.com/blog, quotable figures at tripstow.com/press and the monthly airport league table at tripstow.com/press/airports.
Columns
| Column | Meaning |
|---|---|
| month | First day of the month (YYYY-MM-DD) |
| carrier | Airline (IATA code as reported to BTS) |
| flight_number | Flight number |
| origin, dest | Airports (IATA codes) |
| flights | Scheduled flights in the month |
| cancelled, diverted | Flights cancelled or diverted |
| on_time | Flights arriving within 15 minutes of schedule (the US DOT definition) |
| late_30 | Flights arriving more than 30 minutes late |
| arr_delay_mean, arr_delay_median | Arrival delay in minutes over flights that operated (negative is early) |
The on-time share is on_time / (flights - cancelled - diverted), as in the official reports.
Source and licence
Source: US Department of Transportation, Bureau of Transportation Statistics, Airline On-Time Performance data. US government works are in the public domain; this aggregation is released under CC0. A credit to TripStow (https://tripstow.com) is appreciated but not required.
Files: data/us_ontime_2026_07.csv, data/us_ontime_2026_06.csv, data/us_ontime_2026_05.csv, data/us_ontime_2026_04.csv, data/us_ontime_2026_03.csv, data/us_ontime_2026_02.csv, data/us_ontime_2026_01.csv, data/us_ontime_2025_12.csv, data/us_ontime_2025_11.csv, data/us_ontime_2025_10.csv, data/us_ontime_2025_09.csv, data/us_ontime_2025_08.csv.
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