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DelayAtlas

Flight number record

OO 4029

SkyWest Airlines · Oklahoma City to Salt Lake City

Route
OKC → SLC
Departs
08:05
Flights
365
Period
July 2025 to June 2026
A+GRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4029, 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 4029 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 15 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 365 flights, with a median arrival 9 minutes early.

Set against the rest of the country, OO 4029's record is 15 points better than the US average of 77.6%. That gap is worth roughly 150 fewer late arrivals for every thousand flights.

Key figures

On time

92.6%

Arrivals under 15 minutes late, of 363 completed flights

Avg delay

119 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.81%

1 hour+ late

3.9%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 9 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.

Schedule

When OO 4029 flies

OO 4029 flies OKC to SLC without a single fixed slot. Its most common scheduled departure was 08:05, used on 89 of 365 flights, with 08:45 (56 flights) and 08:26 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

  • Departs 08:0589 flights24.4%
  • Departs 08:4556 flights15.3%
  • Departs 08:2655 flights15.1%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 08:05 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 4029 runs 9 points better at 92.6%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

OO 4029 next to OKC to SLC

Every carrier on OKC to SLC combined arrived on time 92.5% of the time across 720 flights, so OO 4029 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 14 points.

OO 4029 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
OO 402936592.6%119 min0.55%A+
All SkyWest Airlines on OKC–SLC72092.5%88 min0.56%A+
All carriers on OKC–SLC72092.5%88 min0.56%A+
SkyWest Airlines, whole network852,93579.0%88 min1.77%B

Across the year

OO 4029 quarter by quarter

OO 4029 did not run the same all year. Its best quarter was Apr–Jun 2026 at 97.8% on time and its weakest Jan–Mar 2026 at 85.2%, a swing of 13 points on roughly 91 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 202592 flights96.7%
  • Oct–Dec 202592 flights90.2%
  • Jan–Mar 202690 flights85.2%
  • Apr–Jun 202691 flights97.8%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4029 ranged from 86.8% on Tuesday to 98.0% on Sunday. With about 52 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

On-time rate by day of the week94.2Mon86.8Tue88.5Wed96.2Thu92.3Fri92.2Sat98.0Sun
Monday: 94.2 percent on time. Tuesday: 86.8 percent on time. Wednesday: 88.5 percent on time. Thursday: 96.2 percent on time. Friday: 92.3 percent on time. Saturday: 92.2 percent on time. Sunday: 98.0 percent on time

Delay causes

Why OO 4029 runs late

One category carries most of the weight here. Carrier accounts for 85% of the 3,222 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

  • Carrier
    85%
  • Extreme weather
    13%
  • National Airspace System
    2%

Extreme weather accounts for 13% 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 2.1 times the usual weather exposure. The split is drawn from 3,222 delay minutes reported on OO 4029.

Cancellations are rare at 0.55%, below the national 1.81% 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

Badly late arrivals are rare here: only 3.9% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 866 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 365 flights under OO 4029 in the data flew OKC to SLC. 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. 365 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 4029

For a booking, OO 4029 has one of the better records a US domestic flight can show: 92.6% on time and 0.55% cancelled. That is a base rate, not a promise about any single day.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.