Flight number record

OO 3930

SkyWest Airlines · Duluth to Minneapolis

Route: DLH → MSP
Departs: 05:00
Flights: 265
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3930, 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 3930 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 12 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 3.1 hours. That rests on 265 flights, with a median arrival 17 minutes early.

Set against the rest of the country, OO 3930's record is 12 points better than the US average of 77.6%. That gap is worth roughly 120 fewer late arrivals for every thousand flights.

On time

89.6%

Arrivals under 15 minutes late, of 260 completed flights

Avg delay

184 min

Across delayed arrivals only, not all flights

Cancelled

1.89%

National rate is 1.81%

1 hour+ late

6.9%

National rate is 8.1%

These figures cover 265 flights between July 2025 and June 2026. The median arrival is 17 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When OO 3930 flies

OO 3930 flies DLH to MSP without a single fixed slot. Its most common scheduled departure was 05:00, used on 118 of 265 flights, with 05:10 (78 flights) and 05:15 (35 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 05:00118 flights44.5%
Departs 05:1078 flights29.4%
Departs 05:1535 flights13.2%

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 05:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 3930 runs level with that at 89.6%. 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 3930 next to DLH to MSP

Every carrier on DLH to MSP combined arrived on time 82.6% of the time across 1,180 flights, so OO 3930 is 7 points ahead of it. SkyWest flew 1,176 flights on the same city pair under all its flight numbers, including this one, and those ran 82.5% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 11 points.

OO 3930 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3930thin sample	265	89.6%	184 min	1.89%	A
All SkyWest Airlines on DLH–MSP	1,176	82.5%	109 min	2.30%	B
All carriers on DLH–MSP	1,180	82.6%	109 min	2.29%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 3930 quarter by quarter

Quarter by quarter OO 3930 held fairly steady: 95.3% in Jul–Sep 2025, 89.9% in Oct–Dec 2025 and 91.5% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202586 flights95.3%
Oct–Dec 202591 flights89.9%
Jan–Mar 202628 flights—
Apr–Jun 202660 flights91.5%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 3930 ranged from 86.1% on Saturday to 94.9% on Monday. With about 38 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why OO 3930 runs late

One category carries most of the weight here. Carrier accounts for 97% of the 4,955 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
97%
National Airspace System
2%
Extreme weather
1%

The largest share of delay minutes, 97%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 4,821 of the 4,955 delay minutes reported here. The split is drawn from 4,955 delay minutes reported on OO 3930.

Cancellations sit at 1.89% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

6.9% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about 3.1 hours, which a normal layover absorbs.

The same number turns up on two other city pairs in the data, including ATL to MOB (13) and MOB to ATL (13), but none flew often enough under OO 3930 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DLH to MSP only.

One caution: this is a thin sample. 265 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 3930

For a booking, read OO 3930 as 89.6% on time with 1.89% cancelled over 265 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