Route reliability record
MIA→MSP
Miami to Minneapolis
- Flights
- 1,124
- Period
- July 2025 to June 2026
- Distance
- 1,501 mi
- Carriers
- 2
This route sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 1,124 MIA to MSP flights, of which Delta Air Lines flew 759 at 77.6% on time.
Best time to fly MIA to MSP: a 5am–8am departure, ideally on a Tuesday. Flights in that window arrived on time 91.5% of the time and Tuesday flights 78.6%, against 72.3% for the route overall.
The national on-time rate over the same period is 77.6%, so this route runs 5 points behind the country as a whole. Across a thousand flights that is about 53 extra late arrivals.
Key figures
On time
72.3%
Arrivals under 15 minutes late, of 1,110 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
0.89%
National rate is 1.81%
Best carrier
Delta
77.6% on time across 759 flights
These figures cover 1,124 flights between July 2025 and June 2026. Beyond the headline rate, 9.6% 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
Which airline is most reliable on MIA to MSP
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 77.6% of the time; American Airlines manages 61.4%. Sample sizes sit next to every figure, because a two-point gap across 365 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 759 | 77.6% | 72 min | 0.79% | B+ |
| American Airlines | 365 | 61.4% | 72 min | 1.10% | D |
The spread between Delta and American is 16 points, wide enough that it should decide the booking. On a hundred trips that is 16 more arrivals inside the on-time window.
Flight by flight
Flights on MIA to MSP
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
Best ways to make this trip
The most reliable ways to fly Miami to Minneapolis
Every airline on this route, ranked by how often a scheduled flight actually operated and arrived on time, with its best departure time and most punctual flight number. No nearby airport pair beat these.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. MIA → MSPMiami to Minneapolis | Delta Air Lines | 77.0% | 77.6% | 0.79% | 5am–8am, Tue | DL 2129 14:40 |
| 2. MIA → MSPMiami to Minneapolis | American Airlines | 60.7% | 61.4% | 1.10% | 8pm–5am, Fri | — |
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 30 points, against 16 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am144 flights91.5%
- 8am–11am—
- 11am–2pm19 flights—
- 2pm–5pm364 flights76.9%
- 5pm–8pm299 flights68.5%
- 8pm–5am298 flights61.7%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 61.7% on time, against 91.5% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 364 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 23 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.
January is the weak month at 60.2% on time, against 83.1% in November. 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. December was the busiest month here, with 102 flights.
Across the week, Tuesday is the strongest day at 78.6% on time and Sunday the weakest at 63.4%. 15 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 22,000 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.
- 44%Late-arriving aircraft
- 36%Carrier
- 14%National Airspace System
- 6%Extreme weather
- 0%Security
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 22,000 reported delay minutes here, that single category outweighs weather by 7 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 22,117 reported delay minutes.
The largest share of delay minutes, 36%, 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 7,951 of the 22,000 delay minutes reported here.
Cancellations are rare at 0.89%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here actually costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.6% 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.
At 1,501 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg is a different operation and performs like one: it runs 82.4% on time across 1,125 flights, 10 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 10 points of difference.
The sample behind these figures is 1,124 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in MSP after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. November runs 83.1% on time and January 60.2%, a swing of 23 points. If the dates move at all, move them out of January before you think about anything else. 1,110 completed flights over 12 months sit behind that.
Common questions
MIA to MSP questions
How often is MIA to MSP delayed?
Roughly one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 27.7% of the 1,124 flights in this analysis, against 22.4% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on MIA to MSP?
Delta Air Lines leads at 77.6% on time across 759 flights. American Airlines is at the other end on 61.4%, a gap of 16 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on MIA to MSP?
The 5am–8am departure window is the strongest at 91.5% on time. The 8pm–5am window is the weakest at 61.7%, 30 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 January delays on MIA to MSP?
January is the weakest month at 60.2% on time, compared with 83.1% in November. Across the year that is 23 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 MIA — the return legseparate record
- Miami International (MIA) delay statistics
- Minneapolis-St Paul International (MSP) delay statistics
- Delta Air Lines on MIA to MSP77.6%
- American Airlines on MIA to MSP61.4%
- MIA to ATL, a related route73.7%
- ORD to MSP, a related route69.7%
- MIA to LGA, a related route68.0%
- Delta Air Lines on-time record77.6%
- American Airlines on-time record61.4%
- Why the first flight of the morning is statistically safest
- Same route, different airline: where the carrier you pick matters most
Direction matters. MIA to MSP and MSP to MIA 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.