Flight number record

OO 5116

SkyWest Airlines · Denver to Rock Springs

Route: DEN → RKS
Departs: 12:10
Flights: 315
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5116, 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 5116 lands a B+, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 315 flights, with a median arrival 10 minutes early.

Set against the rest of the country, OO 5116's record is 4 points better than the US average of 77.6%. That gap is worth roughly 42 fewer late arrivals for every thousand flights.

On time

81.8%

Arrivals under 15 minutes late, of 313 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

1 hour+ late

5.1%

National rate is 8.1%

These figures cover 315 flights between July 2025 and June 2026. The median arrival is 10 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 5116 flies

OO 5116 flies DEN to RKS without a single fixed slot. Its most common scheduled departure was 12:10, used on 165 of 315 flights, with 12:15 (139 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:10165 flights52.4%
Departs 12:15139 flights44.1%

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 12:10 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 5116 runs 3 points better at 81.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 5116 next to DEN to RKS

Every carrier on DEN to RKS combined arrived on time 77.9% of the time across 728 flights, so OO 5116 is 4 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 3 points.

OO 5116 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5116thin sample	315	81.8%	58 min	0.00%	B+
All SkyWest Airlines on DEN–RKS	728	77.9%	93 min	0.69%	B+
All carriers on DEN–RKS	728	77.9%	93 min	0.69%	B+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5116 quarter by quarter

OO 5116 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.7% on time and its weakest Jan–Mar 2026 at 74.2%, a swing of 17 points on roughly 79 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 202543 flights90.7%
Oct–Dec 202592 flights85.6%
Jan–Mar 202689 flights74.2%
Apr–Jun 202691 flights81.3%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5116 did best on Wednesday at 90.9% on time and worst on Friday at 71.1%. Each day rests on about 45 flights, so a gap of 20 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5116 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 3,298 reported delay minutes.

Late-arriving aircraft
39%
Carrier
30%
National Airspace System
21%
Extreme weather
10%

39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 3,298 reported delay minutes here, that single category outweighs weather by 4 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 3,298 delay minutes reported on OO 5116.

Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

5.1% 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 about an hour, which a normal layover absorbs.

The same number turns up on two other city pairs in the data, including RKS to DEN (73) and DDC to DEN (21), but none flew often enough under OO 5116 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to RKS only.

One caution: this is a thin sample. 315 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 5116

For a booking, read OO 5116 as 81.8% on time with 0.00% cancelled over 315 flights. Those are rates from the past twelve months, not a forecast for any particular 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