Flight profile · SkyWest Airlines
OO5583
Tucson (TUS) to San Francisco (SFO) · scheduled 12:40 PM – 3:30 PM
How OO5583 performs
887 operations, July 2023 – July 2026.
OO5583 arrived on time 82.7% of the time, against 73.9% for all TUS → SFO flights, so this departure is 8.8 percentage points better than the route as a whole. Against SkyWest Airlines’ own flights on this route it is 9.1 points better.
Source: US DOT Bureau of Transportation Statistics · 887 operations, July 2023 – July 2026 · If OO5583 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where OO5583 is right now
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| OO5583 | 82.7% | 0.79% | -9 min | 7.3% | 887 |
| SkyWest Airlines on TUS → SFO | 73.6% | 0.63% | -3 min | 9.6% | 2,680 |
| All TUS → SFO flights | 73.9% | 0.71% | -4 min | 9.7% | 2,809 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why OO5583 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for OO5583 on TUS → SFO. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies OO5583 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, OO5583 pushed back an average of 41 minutes late; when it came in on time or early, an average of 2 minutes late.
Each departure is matched to the flight the same aircraft flew into TUS just before it, using the tail number in the DOT file, 859 of 880 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 |
|---|---|---|---|
| OO5583 | 18% | 57% | 9% |
| Network, same turn | 17% | 68% | 9% |
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 60 to 89 minutes. How often OO5583’s aircraft landed 15 or more minutes late is about the same as the network’s and, once the aircraft was late, how often OO5583 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 July 2023 – July 2026
From pushback to gate
When it leaves TUS late, does that still matter by the time it reaches SFO?
OO5583 pushes back an average of 10.2 minutes late and reaches the gate at SFO an average of 2.6 minutes late. The 7.7 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 18.2 minutes on the taxiways at TUS, 2.0 minutes longer than a typical TUS departure in the same hour.
On arrival at SFO, OO5583 spends 6.4 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 shorter than a typical SFO arrival (7.9 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 SFO. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 5,808 departures from TUS scheduled in the clock hour OO5583 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at SFO (436,060 flights), not just OO5583’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves TUS
Part of any flight’s record belongs to the clock rather than to the flight. OO5583 has one departure time, so this is what that time is worth.
On-time arrival rate. 5,808 departures from TUS are scheduled in the 12 PM–1 PM hour over the period, against 59,292 across the whole day.
OO5583 is scheduled out of TUS at 12:40 PM, in the 12 PM–1 PM bank. Departures from TUS in that hour arrive on time 83.4% of the time against 84.3% across the airport’s whole day, so the hour OO5583 leaves in is an ordinary one for TUS and explains nothing about its record either way.
The two airport figures cover every departure from TUS 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 · July 2023 – July 2026 · Hours below 120 departures are not scored.
By day of week
Does OO5583 run worse on particular days?
Tuesday is historically the most reliable day and Friday the least, a gap of 15.5 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Days with fewer than 120 operations are not scored.
Other routes OO5583 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 |
|---|---|---|---|
| SFO→RNO San Francisco to Reno | March 5, 2026 – May 20, 2026 | 66 | — |
| SLC→DEN Salt Lake City to Denver | January 11, 2025 – February 8, 2025 | 5 | — |
| IAH→MEM Houston to Memphis | September 1–15, 2024 | 3 | — |
| ORD→GEG Chicago to Spokane | June 27, 2024 – August 18, 2024 | 52 | — |
| ORD→SGF Chicago to Springfield | May 23, 2024 – June 26, 2024 | 35 | — |
| ORD→AUS Chicago to Austin | May 2–3, 2024 | 2 | — |
Because the same number has served different journeys, the statistics above describe only the route OO5583 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.
42 min late
against a median of 9 min early
Percentiles over 887 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO5583 this flight | SkyWest Airlines | 82.7% | 9 min early | 887 |
| OO5392 | SkyWest Airlines | 74.4% | 2 min early | 622 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. OO5583 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 887 records of OO5583 operating TUS → SFO, 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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