Flight number record
OO 4816
SkyWest Airlines · St. George to Dallas-Fort Worth
- Route
- SGU → DFW
- Departs
- 05:00
- Flights
- 349
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 4816, 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 4816 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 2.5 hours. That rests on 349 flights, with a median arrival 14 minutes early.
Set against the rest of the country, OO 4816's record is 13 points better than the US average of 77.3%. That gap is worth roughly 132 fewer late arrivals for every thousand flights.
Key figures
On time
90.5%
Arrivals under 15 minutes late, of 346 completed flights
Avg delay
148 min
Across delayed arrivals only, not all flights
Cancelled
0.57%
National rate is 1.89%
1 hour+ late
5.2%
National rate is 8.3%
These figures cover 349 flights between September 2025 and August 2026. The median arrival is 14 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When OO 4816 flies
OO 4816 is scheduled to leave St. George (SGU) at 05:00 local time and reach Dallas-Fort Worth (DFW) at 08:50. That slot held for 282 of the 349 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.
- Departs 05:00282 flights80.8%
- Departs 05:0553 flights15.2%
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 05:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 4816 runs level with that at 90.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 4816 next to SGU to DFW
Every carrier on SGU to DFW combined arrived on time 79.4% of the time across 698 flights, so OO 4816 is 11 points ahead of it. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4816thin sample | 349 | 90.5% | 148 min | 0.57% | A+ |
| All SkyWest Airlines on SGU–DFW | 698 | 79.4% | 104 min | 0.43% | B+ |
| All carriers on SGU–DFW | 698 | 79.4% | 104 min | 0.43% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 4816 quarter by quarter
OO 4816 did not run the same all year. Its best quarter was Oct–Dec 2025 at 96.7% on time and its weakest Apr–Jun 2026 at 83.5%, a swing of 13 points on roughly 87 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 202530 flights—
- Oct–Dec 202592 flights96.7%
- Jan–Mar 202690 flights92.1%
- Apr–Jun 202685 flights83.5%
- Jul–Sep 202652 flights86.5%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4816 did best on Monday at 96.2% on time and worst on Sunday at 80.4%. Each day rests on about 50 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 4816 runs when it is late
OO 4816 often beats the schedule: 162 of 346 completed flights, 47%, arrived 15 minutes or more early. When OO 4816 is late it tends to be very late: 18 of its 33 late arrivals were an hour or more behind, and 12 were two hours or more.
- 15+ min early162 flights46.8%
- Within 15 min151 flights43.6%
- 15–29 min late9 flights2.6%
- 30–59 min late6 flights1.7%
- 1–2 hours late6 flights1.7%
- 2+ hours late12 flights3.5%
Scale runs 0% to 100%.
Share of 346 completed flights by arrival against schedule.
8 of 35 late departures made up the time and arrived on time, 23% of them. Only 6 left on time and still arrived late.
The worst days
Worst days for OO 4816
The latest arrival of the period was on 19 June 2026, 13 hours 36 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 June 2026 | 13 hours 36 minutes | Late-arriving aircraft |
| 26 January 2026 | 6 hours 38 minutes | Extreme weather |
| 21 May 2026 | 6 hours 31 minutes | Carrier |
| 9 July 2026 | 6 hours 10 minutes | Carrier |
| 22 November 2025 | 5 hours 26 minutes | Carrier |
Delay causes
Why OO 4816 runs late
Carrier accounts for 69% of the 4,883 delay minutes carriers reported here, and the remaining four split what is left.
- 69%Carrier
- 17%Late-arriving aircraft
- 11%Extreme weather
- 3%National Airspace System
Extreme weather accounts for 11% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.9 times the usual weather exposure. The split is drawn from 4,883 delay minutes reported on OO 4816.
Cancellations are rare at 0.57%, 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
5.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about 2.5 hours, which a normal layover absorbs.
The 976 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.
Every one of the 349 flights under OO 4816 in the data flew SGU to DFW. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 349 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 4816
For a booking, OO 4816 has one of the better records a US domestic flight can show: 90.5% on time and 0.57% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- Dallas/Fort Worth International (DFW) 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
- Worst months to fly in the US, ranked by the data
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.