Flight number record

OO 5016

SkyWest Airlines · Hancock to Chicago

Route: CMX → ORD
Departs: 08:40
Flights: 309
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5016, 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 5016 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.6%. The late ones land about 2.7 hours behind schedule. That rests on 309 flights, with a median arrival 1 minute early.

The national on-time rate over the same period is 77.6%, so OO 5016 runs 6 points behind the country as a whole. Across a thousand flights that is about 60 extra late arrivals.

On time

71.6%

Arrivals under 15 minutes late, of 292 completed flights

Avg delay

162 min

Across delayed arrivals only, not all flights

Cancelled

5.18%

National rate is 1.81%

1 hour+ late

15.1%

National rate is 8.1%

These figures cover 309 flights between July 2025 and June 2026. Beyond the headline rate, 15.1% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When OO 5016 flies

OO 5016 flies CMX to ORD without a single fixed slot. Its most common scheduled departure was 08:40, used on 93 of 309 flights, with 08:35 (61 flights) and 08:30 (58 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:4093 flights30.1%
Departs 08:3561 flights19.7%
Departs 08:3058 flights18.8%

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 08:40 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 5016 runs 13 points worse at 71.6%. 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 5016 next to CMX to ORD

Every carrier on CMX to ORD combined arrived on time 66.8% of the time across 795 flights, so OO 5016 is 5 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 7 points.

OO 5016 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5016thin sample	309	71.6%	162 min	5.18%	C−
All SkyWest Airlines on CMX–ORD	795	66.8%	134 min	6.29%	C−
All carriers on CMX–ORD	795	66.8%	134 min	6.29%	C−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5016 quarter by quarter

OO 5016 did not run the same all year. Its best quarter was Apr–Jun 2026 at 86.5% on time and its weakest Jan–Mar 2026 at 58.4%, a swing of 28 points on roughly 77 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 flights78.9%
Oct–Dec 202592 flights69.3%
Jan–Mar 202687 flights58.4%
Apr–Jun 202638 flights86.5%

Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5016 did best on Tuesday at 85.4% on time and worst on Monday at 62.5%. Each day rests on about 44 flights, so a gap of 23 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5016 runs late

One category carries most of the weight here. Carrier accounts for 50% of the 13,000 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
50%
Late-arriving aircraft
20%
Extreme weather
19%
National Airspace System
11%
Security
0%

Extreme weather accounts for 19% 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 3.1 times the usual weather exposure. The split is drawn from 13,482 delay minutes reported on OO 5016.

Cancellations run at 5.18%, against 1.81% nationally. That is about one flight in twenty cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 15.1% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The same number turns up on seven other city pairs in the data, including ORD to LAF (32), ORD to CMX (32) and ORD to EAU (25), but none flew often enough under OO 5016 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CMX to ORD only.

One caution: this is a thin sample. 309 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 5016

For a booking, the cancellation rate is the figure to plan around on OO 5016: 5.18% of its 309 scheduled flights did not operate. A late arrival costs about 2.7 hours, but a cancellation costs the day, so leave a later option open.

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