Flight number record

OO 5046

SkyWest Airlines · Johnstown to Washington

Route: JST → IAD
Departs: 06:15
Flights: 301
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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, 3 points worse than the national rate of 77.6%. The late ones land about 3.2 hours behind schedule. That rests on 301 flights, with a median arrival 9 minutes early.

On time

74.5%

Arrivals under 15 minutes late, of 290 completed flights

Avg delay

194 min

Across delayed arrivals only, not all flights

Cancelled

3.65%

National rate is 1.81%

1 hour+ late

19.0%

National rate is 8.1%

These figures cover 301 flights between July 2025 and June 2026. Beyond the headline rate, 19.0% 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 5046 flies

OO 5046 flies JST to IAD without a single fixed slot. Its most common scheduled departure was 06:15, used on 187 of 301 flights, with 06:24 (45 flights) and 06:38 (39 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:15187 flights62.1%
Departs 06:2445 flights15.0%
Departs 06:3839 flights13.0%

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 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 15 points worse at 74.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

OO 5046 next to JST to IAD

Every carrier on JST to IAD combined arrived on time 74.9% of the time across 338 flights, so OO 5046 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 5 points.

OO 5046 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5046thin sample	301	74.5%	194 min	3.65%	C−
All SkyWest Airlines on JST–IADthin sample	338	74.9%	189 min	3.25%	C−
All carriers on JST–IADthin sample	338	74.9%	189 min	3.25%	C−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5046 quarter by quarter

OO 5046 did not run the same all year. Its best quarter was Jul–Sep 2025 at 85.5% on time and its weakest Jan–Mar 2026 at 65.1%, a swing of 20 points on roughly 75 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 202555 flights85.5%
Oct–Dec 202592 flights69.3%
Jan–Mar 202689 flights65.1%
Apr–Jun 202665 flights84.4%

Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5046 did best on Saturday at 85.3% on time and worst on Tuesday at 63.6%. Each day rests on about 43 flights, so a gap of 22 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5046 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 14,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
45%
Carrier
33%
Extreme weather
15%
National Airspace System
7%
Security
0%

Extreme weather accounts for 15% 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 14,339 delay minutes reported on OO 5046.

Cancellations run at 3.65%, against 1.81% 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 19.0% 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 same number turns up on one other city pair in the data, including IAD to JST (37), 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. 301 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: 3.65% of its 301 scheduled flights did not operate. A late arrival costs about 3.2 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