Flight number record

OO 4266

SkyWest Airlines · International Falls to Minneapolis

Route: INL → MSP
Departs: 15:50
Flights: 289
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4266, 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 4266 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 2.5 hours. That rests on 289 flights, with a median arrival 21 minutes early.

Set against the rest of the country, OO 4266's record is 7 points better than the US average of 77.6%. That gap is worth roughly 70 fewer late arrivals for every thousand flights.

On time

84.6%

Arrivals under 15 minutes late, of 286 completed flights

Avg delay

150 min

Across delayed arrivals only, not all flights

Cancelled

1.04%

National rate is 1.81%

1 hour+ late

10.1%

National rate is 8.1%

These figures cover 289 flights between July 2025 and June 2026. Beyond the headline rate, 10.1% 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 4266 flies

OO 4266 flies INL to MSP without a single fixed slot. Its most common scheduled departure was 15:50, used on 215 of 289 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 15:50215 flights74.4%

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 15:50 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and OO 4266 runs 12 points better at 84.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 4266 next to INL to MSP

Every carrier on INL to MSP combined arrived on time 86.4% of the time across 666 flights, so OO 4266 is 2 points behind it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 6 points.

OO 4266 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4266thin sample	289	84.6%	150 min	1.04%	B
All SkyWest Airlines on INL–MSP	666	86.4%	121 min	1.80%	A
All carriers on INL–MSP	666	86.4%	121 min	1.80%	A
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4266 quarter by quarter

Quarter by quarter OO 4266 held fairly steady: 85.9% in Jul–Sep 2025, 84.8% in Oct–Dec 2025, 79.7% in Jan–Mar 2026 and 87.3% in Apr–Jun 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 202585 flights85.9%
Oct–Dec 202567 flights84.8%
Jan–Mar 202665 flights79.7%
Apr–Jun 202672 flights87.3%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4266 did best on Saturday at 94.0% on time and worst on Monday at 80.8%. Each day rests on about 41 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 4266 runs late

One category carries most of the weight here. Carrier accounts for 66% of the 6,586 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
66%
Extreme weather
30%
National Airspace System
4%

Extreme weather accounts for 30% 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 4.9 times the usual weather exposure. The split is drawn from 6,586 delay minutes reported on OO 4266.

Cancellations sit at 1.04% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

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. 10.1% 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.

OO 4266 is not only a INL to MSP flight. It also flew MSP to INL (289 flights, 80.4% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 289 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.

Other routes flown as OO 4266
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
MSP to INLthin sample	289	80.4%	123 min	1.04%	B

What to do with this

Booking OO 4266

For a booking, read OO 4266 as 84.6% on time with 1.04% cancelled over 289 flights. Those are rates from the past twelve months, not a forecast for any particular day.

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