Carrier route record

OOGRR→MSP

SkyWest Airlines · Grand Rapids to Minneapolis

Flights: 652
Period: July 2025 to June 2026
Share of route: 52%
Carriers: 2

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on GRR to MSP lands a B+, 2 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 a little over an hour on average. That is a workable record, not a spotless one. That rests on 652 flights, with a median arrival 10 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate SkyWest on GRR to MSP from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

79.9%

Arrivals under 15 minutes late, of 646 completed flights

Avg delay

80 min

Across delayed arrivals only, not all flights

Cancelled

0.92%

National rate is 1.81%

Whole route

80.3%

Every carrier on GRR to MSP, 1,243 flights

These figures cover 652 flights between July 2025 and June 2026. Beyond the headline rate, 8.5% 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.

Carrier by carrier

SkyWest against every carrier on GRR to MSP

SkyWest flew 652 of the 1,243 flights on GRR to MSP, most of the route. Its 79.9% on time is about level with the route as a whole at 80.3%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 80.8% to SkyWest at 79.9%.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on GRR to MSP
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	591	80.8%	80 min	1.18%	B
SkyWest Airlines (this page)	652	79.9%	80 min	0.92%	B+

Departure window

When SkyWest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 12 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am—
8am–11am—
11am–2pm255 flights82.1%
2pm–5pm187 flights72.6%
5pm–8pm209 flights84.1%
8pm–5am1 flights—

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

The 5pm–8pm window is the strongest at 84.1% on time. The full set of windows spans 12 points.

Across the year

SkyWest on GRR to MSP through the year

Darker means more delays. Figures are on-time percentages.May best, January worst

January is the weak month at 59.7% on time, against 88.1% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. May was the busiest month here, with 84 flights.

Across the week, Tuesday is the strongest day at 87.6% on time and Thursday the weakest at 75.3%. 12 points is a smaller lever than departure hour, but it is free.

Delay causes

Why SkyWest runs late on this route

One category carries most of the weight here. Carrier accounts for 62% of the 10,000 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
62%
Extreme weather
26%
National Airspace System
12%

Extreme weather accounts for 26% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.2 times the usual weather exposure. The split is drawn from 10,331 reported delay minutes.

The largest share of delay minutes, 62%, 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 6,359 of the 10,000 delay minutes reported here.

Cancellations sit at 0.92% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

8.5% 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 a little over an hour, which a normal layover absorbs.

At 408 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5pm–8pm window matters as much as it does.

The return leg runs 81.1% on time across 652 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 652 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 SkyWest on GRR to MSP

Put together: treat all of this as provisional. 652 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 79.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 646 completed flights over 12 months sit behind that.

Where to go next

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