Flight number record

OO 5606

SkyWest Airlines · Charlottesville to Chicago

Route: CHO → ORD
Departs: 17:45
Flights: 346
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5606, 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 5606 earns an F−, which is as low as this site's scale goes for a reason. Only 53.6% of flights arrive inside the 15-minute window, 24 points worse than the national rate of 77.6%. Late arrivals average close to two hours. Treat any tight connection here as a coin flip. That rests on 346 flights, with a median arrival 11 minutes late.

The national on-time rate over the same period is 77.6%, so OO 5606 runs 24 points behind the country as a whole. Across a thousand flights that is about 240 extra late arrivals.

On time

53.6%

Arrivals under 15 minutes late, of 323 completed flights

Avg delay

109 min

Across delayed arrivals only, not all flights

Cancelled

5.49%

National rate is 1.81%

1 hour+ late

26.6%

National rate is 8.1%

These figures cover 346 flights between July 2025 and June 2026. Beyond the headline rate, 26.6% 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 5606 flies

OO 5606 flies CHO to ORD without a single fixed slot. Its most common scheduled departure was 17:45, used on 59 of 346 flights, with 17:38 (54 flights) and 17:54 (50 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:4559 flights17.1%
Departs 17:3854 flights15.6%
Departs 17:5450 flights14.5%

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 17:45 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and OO 5606 runs 15 points worse at 53.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

OO 5606 next to CHO to ORD

Every carrier on CHO to ORD combined arrived on time 68.3% of the time across 1,183 flights, so OO 5606 is 15 points behind it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 25 points.

OO 5606 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5606thin sample	346	53.6%	109 min	5.49%	F−
All SkyWest Airlines on CHO–ORD	1,183	68.3%	119 min	4.48%	C−
All carriers on CHO–ORD	1,183	68.3%	119 min	4.48%	C−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5606 quarter by quarter

OO 5606 did not run the same all year. Its best quarter was Apr–Jun 2026 at 62.8% on time and its weakest Jul–Sep 2025 at 41.2%, a swing of 22 points on roughly 87 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 flights41.2%
Oct–Dec 202589 flights54.8%
Jan–Mar 202675 flights55.9%
Apr–Jun 202691 flights62.8%

Scale runs 35% to 70%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5606 ranged from 50.0% on Thursday to 57.4% on Saturday. With about 49 flights behind each day, a spread of 7 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 5606 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 16,000 reported delay minutes.

Late-arriving aircraft
40%
Carrier
33%
National Airspace System
21%
Extreme weather
6%

40% 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 16,000 reported delay minutes here, that single category outweighs weather by 7 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 16,385 delay minutes reported on OO 5606.

Cancellations run at 5.49%, against 1.81% nationally. That is roughly 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. 26.6% 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 566 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 346 flights under OO 5606 in the data flew CHO to ORD. 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. 346 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 5606

For a booking, the cancellation rate is the figure to plan around on OO 5606: 5.49% of its 346 scheduled flights did not operate. A late arrival costs close to two 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