Flight number record

OO 4686

SkyWest Airlines · Little Rock to Denver

Route: LIT → DEN
Departs: 13:33
Flights: 360
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4686, 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 4686 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 360 flights, with a median arrival 18 minutes early.

Set against the rest of the country, OO 4686's record is 8 points better than the US average of 77.6%. That gap is worth roughly 84 fewer late arrivals for every thousand flights.

On time

86.0%

Arrivals under 15 minutes late, of 357 completed flights

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

0.28%

National rate is 1.81%

1 hour+ late

5.9%

National rate is 8.1%

These figures cover 360 flights between July 2025 and June 2026. The median arrival is 18 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 4686 flies

OO 4686 flies LIT to DEN without a single fixed slot. Its most common scheduled departure was 13:33, used on 86 of 360 flights, with 13:30 (83 flights) and 13:35 (78 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:3386 flights23.9%
Departs 13:3083 flights23.1%
Departs 13:3578 flights21.7%

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 13:33 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 4686 runs 7 points better at 86.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 4686 next to LIT to DEN

Every carrier on LIT to DEN combined arrived on time 77.3% of the time across 1,570 flights, so OO 4686 is 9 points ahead of it. SkyWest flew 1,048 flights on the same city pair under all its flight numbers, including this one, and those ran 75.7% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 7 points.

OO 4686 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4686thin sample	360	86.0%	77 min	0.28%	A+
All SkyWest Airlines on LIT–DEN	1,048	75.7%	90 min	0.67%	B+
All carriers on LIT–DEN	1,570	77.3%	89 min	0.76%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4686 quarter by quarter

OO 4686 did not run the same all year. Its best quarter was Apr–Jun 2026 at 93.3% on time and its weakest Jul–Sep 2025 at 80.2%, a swing of 13 points on roughly 90 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 flights80.2%
Oct–Dec 202588 flights88.6%
Jan–Mar 202689 flights81.8%
Apr–Jun 202691 flights93.3%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4686 ranged from 80.4% on Monday to 91.7% on Saturday. With about 51 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.

Delay causes

Why OO 4686 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 3,855 reported delay minutes.

Carrier
41%
Late-arriving aircraft
28%
National Airspace System
18%
Extreme weather
13%

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 2.0 times the usual weather exposure. The split is drawn from 3,855 delay minutes reported on OO 4686.

Cancellations are rare at 0.28%, 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

5.9% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

The 771 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.

The same number turns up on three other city pairs in the data, including DEN to MSP (3), CVG to ORD (1) and ORD to DSM (1), but none flew often enough under OO 4686 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LIT to DEN only.

One caution: this is a thin sample. 360 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 4686

For a booking, OO 4686 has one of the better records a US domestic flight can show: 86.0% on time and 0.28% cancelled. That is a base rate, not a promise about any single day.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures