Flight number record
OO 5046
SkyWest Airlines · Johnstown to Washington
- Route
- JST → IAD
- Departs
- 06:15
- Flights
- 297
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 5046, 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 5046 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 77.3%. The late ones land about 3.4 hours behind schedule. That rests on 297 flights, with a median arrival 8 minutes early.
Key figures
On time
73.8%
Arrivals under 15 minutes late, of 286 completed flights
Avg delay
201 min
Across delayed arrivals only, not all flights
Cancelled
3.70%
National rate is 1.89%
1 hour+ late
19.2%
National rate is 8.3%
These figures cover 297 flights between September 2025 and August 2026. Beyond the headline rate, 19.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 5046 flies
OO 5046 flies JST to IAD without a single fixed slot. Its most common scheduled departure was 06:15, used on 138 of 297 flights, with 06:40 (59 flights) and 06:24 (45 flights) next.
- Departs 06:15138 flights46.5%
- Departs 06:4059 flights19.9%
- Departs 06:2445 flights15.2%
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 06:15 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 5046 runs 16 points worse at 73.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 5046 next to JST to IAD
Every carrier on JST to IAD combined arrived on time 74.5% of the time across 321 flights, so OO 5046 is about level with it. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 5046thin sample | 297 | 73.8% | 201 min | 3.70% | C− |
| All SkyWest Airlines on JST–IADthin sample | 321 | 74.5% | 201 min | 3.43% | C− |
| All carriers on JST–IADthin sample | 321 | 74.5% | 201 min | 3.43% | C− |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 5046 quarter by quarter
OO 5046 did not run the same all year. Its best quarter was Apr–Jun 2026 at 84.4% on time and its weakest Jan–Mar 2026 at 65.1%, a swing of 19 points on roughly 74 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 20256 flights—
- Oct–Dec 202592 flights69.3%
- Jan–Mar 202689 flights65.1%
- Apr–Jun 202665 flights84.4%
- Jul–Sep 202645 flights82.2%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, OO 5046 did best on Thursday at 81.2% on time and worst on Monday at 66.7%. Each day rests on about 42 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 5046 runs when it is late
OO 5046 often beats the schedule: 102 of 286 completed flights, 36%, arrived 15 minutes or more early. When OO 5046 is late it tends to be very late: 55 of its 75 late arrivals were an hour or more behind, and 46 were two hours or more.
- 15+ min early102 flights35.7%
- Within 15 min109 flights38.1%
- 15–29 min late9 flights3.1%
- 30–59 min late11 flights3.8%
- 1–2 hours late9 flights3.1%
- 2+ hours late46 flights16.1%
Scale runs 0% to 100%.
Share of 286 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 62 departures that left 15 minutes late or more, only 1 made it up before arrival. 14 flights left on time and still arrived late.
The worst days
Worst days for OO 5046
The latest arrival of the period was on 10 August 2026, 10 hours 1 minute behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 August 2026 | 10 hours 1 minute | Late-arriving aircraft |
| 23 February 2026 | 9 hours 41 minutes | Late-arriving aircraft |
| 3 July 2026 | 8 hours 55 minutes | Late-arriving aircraft |
| 17 August 2026 | 7 hours 54 minutes | Late-arriving aircraft |
| 5 March 2026 | 7 hours 51 minutes | Extreme weather |
Delay causes
Why OO 5046 runs late
Late-arriving aircraft accounts for 49% of the 15,000 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Late-arriving aircraft
- 29%Carrier
- 14%Extreme weather
- 7%National Airspace System
- 0%Security
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 2.4 times the usual weather exposure. The split is drawn from 15,105 delay minutes reported on OO 5046.
Cancellations run at 3.70%, against 1.89% nationally. That is roughly 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
19.2% 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 same number turns up on one other city pair in the data, including IAD to JST (24), but none flew often enough under OO 5046 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to JST to IAD only.
One caution: this is a thin sample. 297 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 5046
For a booking, the cancellation rate is the figure to plan around on OO 5046: 3.70% of its 297 scheduled flights did not operate. A late arrival costs about 3.4 hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- Washington Dulles International (IAD) 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.