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DelayAtlas

Route reliability record

MSP→GRB

Minneapolis to Green Bay

Flights
911
Period
September 2025 to August 2026
Distance
252 mi
Carriers
2
BGRADE

This route lands a B, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 911 MSP to GRB flights, with a median arrival 11 minutes early.

Best time to fly MSP to GRB: a 8pm–5am departure, ideally on a Saturday. Flights in that window arrived on time 83.1% of the time and Saturday flights 87.5%, against 80.2% for the route overall.

The US average over the same twelve months is 77.3%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

80.2%

Arrivals under 15 minutes late, of 898 completed flights

Avg delay

95 min

Across delayed arrivals only, not all flights

Cancelled

1.43%

National rate is 1.89%

Best carrier

SkyWest

80.1% on time across 908 flights

These figures cover 911 flights between September 2025 and August 2026. Beyond the headline rate, 9.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Carrier by carrier

Which airline is most reliable on MSP to GRB

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 MSP to GRB
AirlineFlightsOn timeAvg delayCancelledGrade
Delta Air Linesthin sample3100.0%—0.00%A+
SkyWest Airlines90880.1%95 min1.43%B

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Best ways to make this trip

The most reliable ways to fly Minneapolis to Green Bay

Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 1 of the top 2 use a different airport at one end.

Most reliable ways to fly from MSP to GRB
OptionAirlineSuccessOn timeCancelledBest departureMost punctual flight
1. MSP → GRBMinneapolis to Green BaySkyWest Airlines79.0%80.1%1.43%8pm–5am, Sat (route)—
2. MSP → ATWMinneapolis to AppletonSkyWest Airlines77.4%78.9%1.85%8am–11am, SatOO 4002 20:00

Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.

Plan this trip by month, day and time

Departure window

The best time of day to leave

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 911 flights.

  • 5am–8am—
  • 8am–11am286 flights80.9%
  • 11am–2pm15 flights—
  • 2pm–5pm314 flights76.2%
  • 5pm–8pm—
  • 8pm–5am296 flights83.1%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

The overnight block holds up unusually well at 83.1% on time across 296 flights. Red-eyes fly into empty airspace and empty gates, and they are the first rotation of the aircraft's day rather than the last. The 2pm–5pm window is the busiest, with 314 flights scheduled in it.

Explore

Filter MSP to GRB by airline, time, month and day

Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.

On MSP to GRB, the best departure window is 8pm–5am at 83.1% on time and the worst is 2pm–5pm at 76.2%, a real gap of 6.9 points. All US flights leaving 8pm–5am ran 70.1%.

  • 5–8am—
  • 8–11am80.9%
  • 11am–2pm—
  • 2–5pm76.2%
  • 5–8pm—
  • 8pm–5am83.1%

best all US flightsScale 60% to 95%. Cells under 30 flights show a dash.

Across the year

When delays peak on this route

This route's year swings by 33 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.

On-time rate by calendar month64J80F65M87A86M82J85J81A80S92O87N59D
Darker means more delays. Figures are on-time percentages.October best, December worst

December is the weak month at 59.1% on time, against 91.7% in October. 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. July was the busiest month here, with 93 flights.

Across the week, Saturday is the strongest day at 87.5% on time and Friday the weakest at 70.5%, a spread of 17 points.

On-time rate by day of the week82.4Mon85.0Tue83.3Wed74.2Thu70.5Fri87.5Sat79.4Sun
Monday: 82.4 percent on time. Tuesday: 85.0 percent on time. Wednesday: 83.3 percent on time. Thursday: 74.2 percent on time. Friday: 70.5 percent on time. Saturday: 87.5 percent on time. Sunday: 79.4 percent on time

Delay causes

Why this route gets delayed

Carrier accounts for 81% of the 17,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    81%
  • Extreme weather
    13%
  • National Airspace System
    5%
  • Security
    1%

Extreme weather accounts for 13% 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 2.2 times the usual weather exposure. The split is drawn from 16,815 reported delay minutes.

The largest share of delay minutes, 81%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 14,000 of the 17,000 delay minutes reported here.

Cancellations sit at 1.43% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here actually costs

9.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

At 252 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 8pm–5am window matters as much as it does.

The return leg is a different operation and performs like one: it runs 83.6% on time across 909 flights, 3 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 3 points of difference.

One caution: this is a thin sample. 911 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.

Work out the risk of missing a connection in GRB after this flight

What to do with this

Booking this route

Put together: treat all of this as provisional. 911 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 80.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 898 completed flights over 12 months sit behind that.

Common questions

MSP to GRB questions

How often is MSP to GRB delayed?

About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 19.8% of the 911 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.

How reliable is MSP to GRB compared with the rest of the country?

80.2% of flights arrive on time here against a national 77.3%, a difference of 3 points in its favour. That is worth a B on this site's grading scale.

What time of day has the fewest delays on MSP to GRB?

The 8pm–5am departure window is the strongest at 83.1% on time. The 2pm–5pm window is the weakest at 76.2%, 7 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are December delays on MSP to GRB?

December is the weakest month at 59.1% on time, compared with 91.7% in October. Across the year that is 33 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Related

Where to go next

Direction matters. MSP to GRB and GRB to MSP are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.

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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.