Flight number record

OO 5610

SkyWest Airlines · Chicago to Charlottesville

Route: ORD → CHO
Departs: 17:45
Flights: 358
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5610, 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 5610 draws a D−. Roughly one flight in two arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 358 flights, with a median arrival 4 minutes late.

The national on-time rate over the same period is 77.3%, so OO 5610 runs 19 points behind the country as a whole. Across a thousand flights that is about 187 extra late arrivals.

On time

58.6%

Arrivals under 15 minutes late, of 338 completed flights

Avg delay

103 min

Across delayed arrivals only, not all flights

Cancelled

5.03%

National rate is 1.89%

1 hour+ late

21.3%

National rate is 8.3%

These figures cover 358 flights between September 2025 and August 2026. Beyond the headline rate, 21.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Schedule

When OO 5610 flies

OO 5610 flies ORD to CHO without a single fixed slot. Its most common scheduled departure was 17:45, used on 123 of 358 flights, with 17:50 (92 flights) and 18:15 (59 flights) next.

Departs 17:45123 flights34.4%
Departs 17:5092 flights25.7%
Departs 18:1559 flights16.5%

Scale runs 0% to 100%.

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 68.0%, and OO 5610 runs 9 points worse at 58.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

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Against the route

OO 5610 next to ORD to CHO

Every carrier on ORD to CHO combined arrived on time 65.9% of the time across 1,236 flights, so OO 5610 is 7 points behind it. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 20 points.

OO 5610 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5610thin sample	358	58.6%	103 min	5.03%	D−
All SkyWest Airlines on ORD–CHO	1,236	65.9%	90 min	3.96%	C−
All carriers on ORD–CHO	1,236	65.9%	90 min	3.96%	C−
SkyWest Airlines, whole network	855,406	78.7%	88 min	1.79%	B

Across the year

OO 5610 quarter by quarter

OO 5610 did not run the same all year. Its best quarter was Oct–Dec 2025 at 63.9% on time and its weakest Jan–Mar 2026 at 50.0%, a swing of 14 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 202530 flights—
Oct–Dec 202589 flights63.9%
Jan–Mar 202687 flights50.0%
Apr–Jun 202690 flights62.8%
Jul–Sep 202662 flights58.3%

Scale runs 40% to 70%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5610 ranged from 54.9% on Tuesday to 63.3% on Friday. With about 51 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.

Arrival by arrival

How late OO 5610 runs when it is late

OO 5610 often beats the schedule: 91 of 338 completed flights, 27%, arrived 15 minutes or more early. When OO 5610 is late it tends to be very late: 72 of its 140 late arrivals were an hour or more behind, and 29 were two hours or more.

15+ min early91 flights26.9%
Within 15 min107 flights31.7%
15–29 min late36 flights10.7%
30–59 min late32 flights9.5%
1–2 hours late43 flights12.7%
2+ hours late29 flights8.6%

Scale runs 0% to 100%.

Share of 338 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 121 departures that left 15 minutes late or more, only 8 made it up before arrival. In the other direction, 27 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at CHO.

The worst days

Worst days for OO 5610

The latest arrival of the period was on 15 February 2026, 16 hours 32 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across February, January, December and April, with no single month standing out.

The latest arrivals of OO 5610 in the period
Date	Arrived late by	Largest filed cause
15 February 2026	16 hours 32 minutes	Carrier
8 January 2026	14 hours 59 minutes	Carrier
2 December 2025	14 hours 48 minutes	Late-arriving aircraft
16 April 2026	12 hours 32 minutes	Extreme weather
4 December 2025	6 hours 44 minutes	Late-arriving aircraft

Delay causes

Why OO 5610 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 14,000 reported delay minutes.

Carrier
38%
Late-arriving aircraft
33%
National Airspace System
18%
Extreme weather
12%

Extreme weather accounts for 12% 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 1.9 times the usual weather exposure. The split is drawn from 14,404 delay minutes reported on OO 5610.

Cancellations run at 5.03%, against 1.89% 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

21.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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.

The same number turns up on two other city pairs in the data, including TUL to ORD (20) and STL to IAH (1), but none flew often enough under OO 5610 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to CHO only.

One caution: this is a thin sample. 358 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 5610

For a booking, the cancellation rate is the figure to plan around on OO 5610: 5.03% of its 358 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures