Flight number record

OO 5215

SkyWest Airlines · Chicago to Lincoln

Route: ORD → LNK
Departs: 08:45
Flights: 341
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5215, 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 5215 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 341 flights, with a median arrival 3 minutes early.

On time

74.1%

Arrivals under 15 minutes late, of 332 completed flights

Avg delay

76 min

Across delayed arrivals only, not all flights

Cancelled

2.05%

National rate is 1.81%

1 hour+ late

9.9%

National rate is 8.1%

These figures cover 341 flights between July 2025 and June 2026. Beyond the headline rate, 9.9% 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 5215 flies

OO 5215 flies ORD to LNK without a single fixed slot. Its most common scheduled departure was 08:45, used on 91 of 341 flights, with 08:40 (53 flights) and 09:06 (49 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:4591 flights26.7%
Departs 08:4053 flights15.5%
Departs 09:0649 flights14.4%

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 08:45 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 5215 runs 10 points worse at 74.1%. 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 5215 next to ORD to LNK

Every carrier on ORD to LNK combined arrived on time 62.9% of the time across 1,555 flights, so OO 5215 is 11 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 5 points.

OO 5215 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5215thin sample	341	74.1%	76 min	2.05%	C
All SkyWest Airlines on ORD–LNK	1,555	62.9%	91 min	3.02%	D−
All carriers on ORD–LNK	1,555	62.9%	91 min	3.02%	D−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5215 quarter by quarter

OO 5215 did not run the same all year. Its best quarter was Jul–Sep 2025 at 83.1% on time and its weakest Oct–Dec 2025 at 64.0%, a swing of 19 points on roughly 85 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 202591 flights83.1%
Oct–Dec 202591 flights64.0%
Jan–Mar 202668 flights73.8%
Apr–Jun 202691 flights75.3%

Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5215 did best on Thursday at 82.6% on time and worst on Monday at 66.0%. Each day rests on about 49 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5215 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 6,549 reported delay minutes.

Carrier
41%
Late-arriving aircraft
30%
National Airspace System
15%
Extreme weather
14%

Extreme weather accounts for 14% 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 2.3 times the usual weather exposure. The split is drawn from 6,549 delay minutes reported on OO 5215.

Cancellations sit at 2.05% against a national 1.81%, which is ordinary. Diversions add another 0.59%.

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. 9.9% 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 one other city pair in the data, including ORD to GSP (21), but none flew often enough under OO 5215 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to LNK only.

One caution: this is a thin sample. 341 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 5215

For a booking, read OO 5215 as 74.1% on time with 2.05% cancelled over 341 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