Flight number record

OO 4002

SkyWest Airlines · Minneapolis to Appleton

Route: MSP → ATW
Departs: 20:00
Flights: 336
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4002, 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 4002 lands a B, 3 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about 2.8 hours on average. That is a workable record, not a spotless one. That rests on 336 flights, with a median arrival 10 minutes early.

On time

80.5%

Arrivals under 15 minutes late, of 328 completed flights

Avg delay

169 min

Across delayed arrivals only, not all flights

Cancelled

1.49%

National rate is 1.81%

1 hour+ late

12.2%

National rate is 8.1%

These figures cover 336 flights between July 2025 and June 2026. Beyond the headline rate, 12.2% 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 4002 flies

OO 4002 flies MSP to ATW without a single fixed slot. Its most common scheduled departure was 20:00, used on 116 of 336 flights, with 20:18 (97 flights) and 19:50 (40 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 20:00116 flights34.5%
Departs 20:1897 flights28.9%
Departs 19:5040 flights11.9%

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 20:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 4002 runs 10 points better at 80.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

OO 4002 next to MSP to ATW

Every carrier on MSP to ATW combined arrived on time 77.9% of the time across 979 flights, so OO 4002 is 3 points ahead of it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 2 points.

OO 4002 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4002thin sample	336	80.5%	169 min	1.49%	B
All SkyWest Airlines on MSP–ATW	979	77.9%	109 min	1.63%	B
All carriers on MSP–ATW	979	77.9%	109 min	1.63%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4002 quarter by quarter

OO 4002 did not run the same all year. Its best quarter was Apr–Jun 2026 at 85.9% on time and its weakest Oct–Dec 2025 at 74.2%, a swing of 12 points on roughly 84 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 202592 flights84.8%
Oct–Dec 202591 flights74.2%
Jan–Mar 202688 flights78.3%
Apr–Jun 202665 flights85.9%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4002 did best on Saturday at 88.6% on time and worst on Wednesday at 75.0%. Each day rests on about 48 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 4002 runs late

One category carries most of the weight here. Carrier accounts for 76% of the 11,000 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.

Carrier
76%
Extreme weather
17%
National Airspace System
6%

Extreme weather accounts for 17% 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 2.8 times the usual weather exposure. The split is drawn from 10,781 delay minutes reported on OO 4002.

Cancellations sit at 1.49% against a national 1.81%, which is ordinary. Diversions add another 0.89%.

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. 12.2% 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 SAN to LAX (24), but none flew often enough under OO 4002 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to MSP to ATW only.

One caution: this is a thin sample. 336 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 4002

For a booking, OO 4002 is a flight to put a long connection behind. 12.2% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

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