Flight profile · SkyWest Airlines
OO4163
Austin (AUS) to Nashville (BNA) · scheduled 7:30 PM – 9:13 PM
How OO4163 performs
645 operations, June 2024 – July 2026.
OO4163 arrived on time 71.8% of the time, against 78.2% for all AUS → BNA flights, so this departure is 6.4 percentage points worse than the route as a whole. Against SkyWest Airlines’ own flights on this route it is 3.8 points worse.
OO4163’s scheduled departure has moved during the period FlyerIntel has on file: it typically left around 8:00 PM earlier on, and around 7:30 PM more recently — a 30-minute shift, not the few minutes of day-to-day rounding every published schedule carries. Confirm the current departure time before booking around an older listing.
Source: US DOT Bureau of Transportation Statistics · 645 operations, June 2024 – July 2026 · If OO4163 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where OO4163 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| OO4163 | 71.8% | 0.31% | -5 min | 11.8% | 645 |
| SkyWest Airlines on AUS → BNA | 75.6% | 0.43% | -6 min | 10.6% | 2,319 |
| All AUS → BNA flights | 78.2% | 0.63% | -4 min | 6.7% | 9,250 |
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026
Why OO4163 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for OO4163 on AUS → BNA. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies OO4163 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, OO4163 pushed back an average of 56 minutes late; when it came in on time or early, an average of 1 minute early.
Each departure is matched to the flight the same aircraft flew into AUS just before it, using the tail number in the DOT file, 610 of 643 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| OO4163 | 25% | 68% | 10% |
| Network, same turn | 18% | 85% | 10% |
The schedule leaves a normal turn: enough time to clean and board if the aircraft is on time, little to spare if it is not.
The network row is every flight with a scheduled turn of 45 to 59 minutes. How often OO4163’s aircraft landed 15 or more minutes late is higher than the network’s and, once the aircraft was late, how often OO4163 left 15 or more minutes late is lower than the network’s.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026
From pushback to gate
When it leaves AUS late, does that still matter by the time it reaches BNA?
OO4163 pushes back an average of 19.9 minutes late and reaches the gate at BNA an average of 16.4 minutes late. The 3.5 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. It spends 18.9 minutes on the taxiways at AUS, 4.0 minutes longer than a typical AUS departure in the same hour.
On arrival at BNA, OO4163 spends 9.4 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 1.6 minutes longer than a typical BNA arrival (7.8 min).
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached BNA. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 16,265 departures from AUS scheduled in the clock hour OO4163 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at BNA (319,633 flights), not just OO4163’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026
The hour it leaves AUS
Part of any flight’s record belongs to the clock rather than to the flight. OO4163 has one departure time, so this is what that time is worth.
On-time arrival rate. 16,265 departures from AUS are scheduled in the 7 PM–8 PM hour over the period, against 272,521 across the whole day.
OO4163 is scheduled out of AUS at 7:30 PM, in the 7 PM–8 PM bank. Departures from AUS in that hour arrive on time 69.4% of the time against 78.0% across the airport’s whole day — the slot alone is worth 8.5 points worse before anything about this particular flight is considered.
The two airport figures cover every departure from AUS to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026 · Hours below 120 departures are not scored.
Other routes OO4163 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| LAX→SJC Los Angeles to San Jose | May 7, 2024 – June 6, 2024 | 31 | — |
| SJC→LAX San Jose to Los Angeles | May 7, 2024 – June 6, 2024 | 31 | — |
| MSP→BIS Minneapolis to Bismarck | April 13–20, 2024 | 2 | — |
| SLC→GEG Salt Lake City to Spokane | April 8, 2024 | 1 | — |
| SEA→GEG Seattle to Spokane | January 15, 2024 – March 7, 2024 | 26 | — |
| FAR→MSP Fargo to Minneapolis | December 16, 2023 – January 7, 2024 | 21 | — |
| MSP→FAR Minneapolis to Fargo | December 16, 2023 – January 7, 2024 | 21 | — |
| DTW→IAD Detroit to Washington | November 6, 2023 – December 15, 2023 | 22 | — |
| IAD→DTW Washington to Detroit | November 6, 2023 – December 15, 2023 | 22 | — |
| DTW→LEX Detroit to Lexington | November 11, 2023 – December 9, 2023 | 3 | — |
| LEX→DTW Lexington to Detroit | November 11, 2023 – December 9, 2023 | 3 | — |
| DTW→OMA Detroit to Omaha | October 28, 2023 – November 4, 2023 | 8 | — |
| OMA→DTW Omaha to Detroit | October 28, 2023 – November 4, 2023 | 8 | — |
| SMF→LAX Sacramento to Los Angeles | July 1, 2023 – September 4, 2023 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4163 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
76 min late
against a median of 5 min early
OO4163 has an average that understates its risk: a typical arrival is 5 min early, but the worst tenth are 81 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 645 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026
Data and methodology
Calculated by FlyerIntel from 645 records of OO4163 operating AUS → BNA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
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