Flight number record
OO 5565
SkyWest Airlines · Chicago to Charlottesville
- Route
- ORD → CHO
- Departs
- 13:55
- Flights
- 353
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5565, 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 5565 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 353 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so OO 5565 runs 10 points behind the country as a whole. Across a thousand flights that is about 102 extra late arrivals.
Key figures
On time
67.1%
Arrivals under 15 minutes late, of 334 completed flights
Avg delay
84 min
Across delayed arrivals only, not all flights
Cancelled
3.97%
National rate is 1.89%
1 hour+ late
15.3%
National rate is 8.3%
These figures cover 353 flights between September 2025 and August 2026. Beyond the headline rate, 15.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5565 flies
OO 5565 flies ORD to CHO without a single fixed slot. Its most common scheduled departure was 13:55, used on 152 of 353 flights, with 14:10 (61 flights) and 14:04 (53 flights) next.
- Departs 13:55152 flights43.1%
- Departs 14:1061 flights17.3%
- Departs 14:0453 flights15.0%
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 13:55 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 5565 runs 11 points worse at 67.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
OO 5565 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 5565 is about level with it. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5565thin sample | 353 | 67.1% | 84 min | 3.97% | C− |
| 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 5565 quarter by quarter
OO 5565 did not run the same all year. Its best quarter was Oct–Dec 2025 at 71.9% on time and its weakest Jul–Sep 2026 at 58.6%, a swing of 13 points on roughly 71 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 flights66.7%
- Oct–Dec 202592 flights71.9%
- Jan–Mar 202678 flights62.3%
- Apr–Jun 202691 flights71.6%
- Jul–Sep 202662 flights58.6%
Scale runs 50% to 75%.
By weekday, OO 5565 did best on Monday at 73.9% on time and worst on Friday at 58.3%. Each day rests on about 50 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5565 runs when it is late
OO 5565 often beats the schedule: 87 of 334 completed flights, 26%, arrived 15 minutes or more early. The 110 late arrivals split 38 under half an hour, 21 between 30 and 60 minutes, and 51 an hour or more.
- 15+ min early87 flights26.0%
- Within 15 min137 flights41.0%
- 15–29 min late38 flights11.4%
- 30–59 min late21 flights6.3%
- 1–2 hours late26 flights7.8%
- 2+ hours late25 flights7.5%
Scale runs 0% to 100%.
Share of 334 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 91 departures that left 15 minutes late or more, only 10 made it up before arrival. In the other direction, 29 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 5565
The latest arrival of the period was on 28 December 2025, 6 hours 40 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across December, November, August, July and April, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 28 December 2025 | 6 hours 40 minutes | Late-arriving aircraft |
| 30 November 2025 | 5 hours 58 minutes | Late-arriving aircraft |
| 16 August 2026 | 5 hours 43 minutes | Extreme weather |
| 4 July 2026 | 4 hours 57 minutes | Extreme weather |
| 19 April 2026 | 4 hours 55 minutes | Carrier |
Delay causes
Why OO 5565 runs late
Late-arriving aircraft accounts for 43% of the 9,244 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Late-arriving aircraft
- 35%Carrier
- 14%National Airspace System
- 9%Extreme weather
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 9,244 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 9,244 delay minutes reported on OO 5565.
Cancellations run at 3.97%, against 1.89% nationally. That is about one flight in 25 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
15.3% 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.
Every one of the 353 flights under OO 5565 in the data flew ORD to CHO. 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. 353 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 5565
For a booking, the cancellation rate is the figure to plan around on OO 5565: 3.97% of its 353 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- ORD to CHO, every carrier and departure
- CHO to ORD, the return direction
- SkyWest Airlines 5610 on the same route58.6%
- 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.