Flight number record
OO 5606
SkyWest Airlines · Charlottesville to Chicago
- Route
- CHO → ORD
- Departs
- 17:38
- Flights
- 347
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 a D−, which is as low as this site's scale goes for a reason. Only 57.0% of flights arrive inside the 15-minute window, 20 points worse than the national rate of 77.3%. Late arrivals average close to two hours. Treat any tight connection here as a coin flip. That rests on 347 flights, with a median arrival 10 minutes late.
The national on-time rate over the same period is 77.3%, so OO 5606 runs 20 points behind the country as a whole. Across a thousand flights that is about 203 extra late arrivals.
Key figures
On time
57.0%
Arrivals under 15 minutes late, of 323 completed flights
Avg delay
122 min
Across delayed arrivals only, not all flights
Cancelled
5.76%
National rate is 1.89%
1 hour+ late
25.1%
National rate is 8.3%
These figures cover 347 flights between September 2025 and August 2026. Beyond the headline rate, 25.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5606 flies
OO 5606 flies CHO to ORD without a single fixed slot. Its most common scheduled departure was 17:38, used on 54 of 347 flights, with 17:54 (50 flights) and 17:52 (47 flights) next.
- Departs 17:3854 flights15.6%
- Departs 17:5450 flights14.4%
- Departs 17:5247 flights13.5%
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 17:38 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and OO 5606 runs 11 points worse at 57.0%. 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 5606 next to CHO to ORD
Every carrier on CHO to ORD combined arrived on time 68.9% of the time across 1,236 flights, so OO 5606 is 12 points behind it. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 22 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5606thin sample | 347 | 57.0% | 122 min | 5.76% | D− |
| All SkyWest Airlines on CHO–ORD | 1,236 | 68.9% | 118 min | 4.45% | C− |
| All carriers on CHO–ORD | 1,236 | 68.9% | 118 min | 4.45% | C− |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5606 quarter by quarter
Quarter by quarter OO 5606 held fairly steady: 54.8% in Oct–Dec 2025, 55.9% in Jan–Mar 2026, 62.8% in Apr–Jun 2026 and 58.9% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights—
- Oct–Dec 202589 flights54.8%
- Jan–Mar 202675 flights55.9%
- Apr–Jun 202691 flights62.8%
- Jul–Sep 202662 flights58.9%
Scale runs 45% to 70%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5606 did best on Sunday at 63.0% on time and worst on Thursday at 51.0%. Each day rests on about 50 flights, so a gap of 12 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5606 runs when it is late
When OO 5606 is late it tends to be very late: 81 of its 139 late arrivals were an hour or more behind, and 44 were two hours or more.
- 15+ min early27 flights8.4%
- Within 15 min157 flights48.6%
- 15–29 min late29 flights9.0%
- 30–59 min late29 flights9.0%
- 1–2 hours late37 flights11.5%
- 2+ hours late44 flights13.6%
Scale runs 0% to 100%.
Share of 323 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 111 departures that left 15 minutes late or more, only 6 made it up before arrival. In the other direction, 34 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 ORD.
The worst days
Worst days for OO 5606
The latest arrival of the period was on 10 March 2026, 22 hours 14 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across March, July, September and December, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 March 2026 | 22 hours 14 minutes | Carrier |
| 4 July 2026 | 16 hours 9 minutes | Extreme weather |
| 27 March 2026 | 15 hours 39 minutes | Carrier |
| 13 September 2025 | 6 hours 18 minutes | Late-arriving aircraft |
| 28 December 2025 | 6 hours 17 minutes | Late-arriving aircraft |
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 17,000 reported delay minutes.
- 39%Late-arriving aircraft
- 33%Carrier
- 20%National Airspace System
- 8%Extreme weather
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 17,000 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 17,019 delay minutes reported on OO 5606.
Cancellations run at 5.76%, against 1.89% nationally. That is roughly one flight in fifteen 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
25.1% 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.
Every one of the 347 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. 347 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: 5.76% of its 347 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.
Related
Where to go next
- CHO to ORD, every carrier and departure
- ORD to CHO, the return direction
- SkyWest Airlines 5977 on the same route75.3%
- Chicago O'Hare International (ORD) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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 ; recomputed monthly. How this data is collected.