Route reliability record
GRB→MSP
Green Bay to Minneapolis
- Flights
- 909
- Period
- September 2025 to August 2026
- Distance
- 252 mi
- Carriers
- 2
This route lands a B, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 909 GRB to MSP flights, with a median arrival 15 minutes early.
Best time to fly GRB to MSP: a 5am–8am departure, ideally on a Monday. Flights in that window arrived on time 92.8% of the time and Monday flights 87.6%, against 83.6% for the route overall.
Set against the rest of the country, this route's record is 6 points better than the US average of 77.3%. That gap is worth roughly 63 fewer late arrivals for every thousand flights.
Key figures
On time
83.6%
Arrivals under 15 minutes late, of 897 completed flights
Avg delay
95 min
Across delayed arrivals only, not all flights
Cancelled
1.32%
National rate is 1.89%
Best carrier
SkyWest
83.6% on time across 907 flights
These figures cover 909 flights between September 2025 and August 2026. Beyond the headline rate, 8.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
Which airline is most reliable on GRB to MSP
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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Linesthin sample | 2 | 100.0% | — | 0.00% | A+ |
| SkyWest Airlines | 907 | 83.6% | 95 min | 1.32% | 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 Green Bay to Minneapolis
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.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. GRB → MSPGreen Bay to Minneapolis | SkyWest Airlines | 82.5% | 83.6% | 1.32% | 5am–8am, Mon (route) | — |
| 2. ATW → MSPAppleton to Minneapolis | SkyWest Airlines | 72.9% | 74.4% | 1.96% | 5am–8am, Sat | OO 3975 06:25 |
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.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against half a point between the best and worst carrier.
- 5am–8am295 flights92.8%
- 8am–11am—
- 11am–2pm285 flights84.0%
- 2pm–5pm329 flights75.2%
- 5pm–8pm—
- 8pm–5am—
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 92.8% of the time, against 75.2% for the afternoon window. That is 18 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 329 flights scheduled in it.
Explore
Filter GRB to MSP 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 GRB to MSP, the best departure window is 5am–8am at 92.8% on time and the worst is 2pm–5pm at 75.2%, a wide gap of 17.6 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am92.8%
- 8–11am—
- 11am–2pm84.0%
- 2–5pm75.2%
- 5–8pm—
- 8pm–5am—
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 38 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.
Delays peak in September, when the on-time rate falls to 55.0%. July is the strongest month at 92.5%. Moving a flexible trip across that boundary buys 38 points. July was the busiest month here, with 93 flights.
Across the week, Monday is the strongest day at 87.6% on time and Friday the weakest at 79.2%, a spread of 8 points.
Delay causes
Why this route gets delayed
Carrier accounts for 71% of the 14,000 delay minutes carriers reported here, and the remaining four split what is left.
- 71%Carrier
- 23%Extreme weather
- 5%National Airspace System
- 1%Security
Extreme weather accounts for 23% 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 3.9 times the usual weather exposure. The split is drawn from 13,987 reported delay minutes.
The largest share of delay minutes, 71%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 9,894 of the 14,000 delay minutes reported here.
Cancellations sit at 1.32% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here actually costs
8.4% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
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 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 80.2% on time across 911 flights, 3 points below 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. 909 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 MSP after this flight
What to do with this
Booking this route
Put together: treat all of this as provisional. 909 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 83.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 897 completed flights over 12 months sit behind that.
Common questions
GRB to MSP questions
How often is GRB to MSP delayed?
About one flight in six arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 16.4% of the 909 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
How reliable is GRB to MSP compared with the rest of the country?
83.6% of flights arrive on time here against a national 77.3%, a difference of 6 points in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on GRB to MSP?
The 5am–8am departure window is the strongest at 92.8% on time. The 2pm–5pm window is the weakest at 75.2%, 18 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 September delays on GRB to MSP?
September is the weakest month at 55.0% on time, compared with 92.5% in July. Across the year that is 38 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
- MSP to GRB — the return legseparate record
- Minneapolis-St Paul International (MSP) delay statistics
- GRB to ORD, a related route72.0%
- ORD to MSP, a related route69.9%
- GRB to DTW, a related route82.4%
- Delta Air Lines on-time record100.0%
- SkyWest Airlines on-time record83.6%
- The best time of day to fly, according to 7.05 million flight records
- Connecting flights: how much buffer the data says you need
Direction matters. GRB to MSP and MSP to GRB are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
Embed GRB to MSP’s on-time badge on your site
Paste this into a web page. The badge shows the current on-time rate, cancellation rate and grade, and updates every month. Preview it, or build a badge for another route or airport.
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.