OO4134

OO4134 arrived on time 94.5% of the time, against 88.8% for all OAK → SLC flights, so this departure is 5.7 percentage points better than the route as a whole.

Source: US DOT Bureau of Transportation Statistics · 778 operations, June 2024 – July 2026 · If OO4134 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.

This flight stays close to typical even on its worst days, a smaller gap than 98% of 11,788 comparable flight numbers.

A typical arrival is 14 min early, and the worst tenth are only 16 minutes worse than that.

Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.

Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026

Share of the delay minutes US DOT attributed to each cause for OO4134 on OAK → SLC. Only delays of 15 minutes or more are attributed.

Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026

The aircraft flying OO4134 came in 15 or more minutes late on 6% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.

Each departure is matched to the flight the same aircraft flew into OAK just before it, using the tail number in the DOT file, 771 of 776 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.

Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026

OO4134 pushes back an average of 0.5 minutes early and reaches the gate at SLC an average of 8.9 minutes early. The 8.4 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 13.8 minutes on the taxiways at OAK, 1.8 minutes longer than a typical OAK departure in the same hour.

On arrival at SLC, OO4134 spends 6.8 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 about what any arrival at SLC spends on the ground before reaching the gate.

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 SLC. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 6,825 departures from OAK scheduled in the clock hour OO4134 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at SLC (355,118 flights), not just OO4134’s own. More on taxi time.

Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026

OO4134 is scheduled out of OAK at 12:30 PM, in the 12 PM–1 PM bank. Departures from OAK in that hour arrive on time 82.5% of the time against 82.0% across the airport’s whole day, so the hour OO4134 leaves in is an ordinary one for OAK and explains nothing about its record either way.

The two airport figures cover every departure from OAK 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.

Because the same number has served different journeys, the statistics above describe only the route OO4134 currently operates. Blending them would produce an average of two different flights.

Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026

Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. OO4134 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.

• OO3903 SLC→OAK Return trip, SLC to OAK, departs 3:10 PM, on time 91.3%
• OO4720 SLC→DEN SkyWest Airlines flight out of SLC, SLC to DEN, departs 1:10 PM, on time 88.6%
• OO3896 SLC→OMA SkyWest Airlines flight out of SLC, SLC to OMA, departs 1:55 PM, on time 90.9%