Flight number record
OO 5583
SkyWest Airlines · Tucson to San Francisco
- Route
- TUS → SFO
- Departs
- 13:40
- Flights
- 334
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5583, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 5583 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 334 flights, with a median arrival 6 minutes early.
The national on-time rate over the same period is 77.3%, so OO 5583 runs 4 points behind the country as a whole. Across a thousand flights that is about 44 extra late arrivals.
Key figures
On time
72.9%
Arrivals under 15 minutes late, of 332 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
0.30%
National rate is 1.89%
1 hour+ late
11.7%
National rate is 8.3%
These figures cover 334 flights between September 2025 and August 2026. Beyond the headline rate, 11.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5583 flies
OO 5583 flies TUS to SFO without a single fixed slot. Its most common scheduled departure was 13:40, used on 102 of 334 flights, with 15:28 (82 flights) and 12:35 (53 flights) next.
- Departs 13:40102 flights30.5%
- Departs 15:2882 flights24.6%
- Departs 12:3553 flights15.9%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 13:40 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 5583 runs 5 points worse at 72.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
OO 5583 next to TUS to SFO
Every carrier on TUS to SFO combined arrived on time 66.4% of the time across 945 flights, so OO 5583 is 7 points ahead of it. SkyWest flew 883 flights on the same city pair under all its flight numbers, including this one, and those ran 66.2% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5583thin sample | 334 | 72.9% | 72 min | 0.30% | C+ |
| All SkyWest Airlines on TUS–SFO | 883 | 66.2% | 66 min | 0.34% | C+ |
| All carriers on TUS–SFO | 945 | 66.4% | 66 min | 0.42% | C+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5583 quarter by quarter
OO 5583 did not run the same all year. Its best quarter was Oct–Dec 2025 at 79.1% on time and its weakest Apr–Jun 2026 at 58.9%, a swing of 20 points on roughly 84 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202524 flights—
- Oct–Dec 202567 flights79.1%
- Jan–Mar 202690 flights75.3%
- Apr–Jun 202691 flights58.9%
- Jul–Sep 202662 flights72.6%
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5583 did best on Tuesday at 87.5% on time and worst on Friday at 55.3%. Each day rests on about 48 flights, so a gap of 32 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5583 runs when it is late
OO 5583 often beats the schedule: 108 of 332 completed flights, 33%, arrived 15 minutes or more early. The 90 late arrivals split 26 under half an hour, 25 between 30 and 60 minutes, and 39 an hour or more.
- 15+ min early108 flights32.5%
- Within 15 min134 flights40.4%
- 15–29 min late26 flights7.8%
- 30–59 min late25 flights7.5%
- 1–2 hours late22 flights6.6%
- 2+ hours late17 flights5.1%
Scale runs 0% to 100%.
Share of 332 completed flights by arrival against schedule.
22 of 98 late departures made up the time and arrived on time, 22% of them. 14 flights left on time and still arrived late.
The worst days
Worst days for OO 5583
The latest arrival of the period was on 17 June 2026, 4 hours 28 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in December 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 June 2026 | 4 hours 28 minutes | Late-arriving aircraft |
| 7 December 2025 | 4 hours 24 minutes | Carrier |
| 23 December 2025 | 3 hours 43 minutes | National Airspace System |
| 26 December 2025 | 3 hours 41 minutes | National Airspace System |
| 15 March 2026 | 3 hours 28 minutes | National Airspace System |
Delay causes
Why OO 5583 runs late
National Airspace System accounts for 54% of the 6,461 delay minutes carriers reported here, and the remaining four split what is left.
- 54%National Airspace System
- 25%Late-arriving aircraft
- 19%Carrier
- 3%Extreme weather
54% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 3,464 minutes out of 6,461, against a national NAS share of 21%. The split is drawn from 6,461 delay minutes reported on OO 5583.
Cancellations are rare at 0.30%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
11.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 751 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on one other city pair in the data, including SFO to RNO (66), but none flew often enough under OO 5583 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to TUS to SFO only.
One caution: this is a thin sample. 334 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking OO 5583
For a booking, read OO 5583 as 72.9% on time with 0.30% cancelled over 334 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- TUS to SFO, every carrier and departure
- SFO to TUS, the return direction
- SkyWest Airlines 4683 on the same route57.8%
- San Francisco International (SFO) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- The best time of day to fly, according to 7.05 million flight records
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.