Carrier performance at one airport
MQ→MIA
Envoy Air at Miami International
- Departures
- 14,383
- Period
- September 2025 to August 2026
- Routes
- 25
- Rank here
- #1 of 9
Envoy Air at Miami 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 about 50 minutes on average. That rests on 14,383 flights, of which Envoy Air flew 14,383 at 83.0% on time.
Measured against the airport rather than the country, Envoy Air runs 9 points ahead of the 74.2% weighted average across all carriers at MIA. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.
Key figures
On time
83.0%
14,212 completed departures
Avg delay
50 min
Across delayed flights only
Cancelled
0.82%
At MIA, this carrier only
Rank here
#1
Of 9 carriers clearing the floor at MIA
These figures cover 14,000 flights between September 2025 and August 2026. The median arrival is 8 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.
Against the competition
Every carrier at MIA, ranked
The choice of carrier is not cosmetic here. Envoy Air arrives on time 83.0% of the time; Spirit Airlines manages 65.3%. Sample sizes sit next to every figure, because a two-point gap across 2,803 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air (this page) | 14,383 | 83.0% | 50 min | 0.82% | B+ |
| United Airlines | 6,757 | 78.7% | 84 min | 1.11% | B |
| Delta Air Lines | 11,676 | 74.7% | 78 min | 2.21% | C |
| Frontier Airlines | 4,358 | 73.7% | 85 min | 2.36% | C |
| American Airlines | 64,336 | 72.5% | 73 min | 1.61% | C |
| Alaska Airlines | 533 | 72.4% | 55 min | 1.31% | C |
| Southwest Airlines | 5,373 | 69.7% | 57 min | 1.17% | C |
| Republic Airways | 909 | 69.4% | 91 min | 1.54% | C |
| Spirit Airlines | 2,803 | 65.3% | 75 min | 5.35% | C− |
Spirit Airlines cancels 5.3% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Route by route
Where Envoy Air flies from MIA
Envoy Air operates 25 routes out of MIA with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MIA to TLH · Tallahassee | 1,182 | 83.5% | 56 min | 0.42% | B+ |
| MIA to EYW · Key West | 1,179 | 88.3% | 48 min | 0.42% | A+ |
| MIA to PNS · Pensacola | 1,174 | 84.2% | 50 min | 0.94% | B+ |
| MIA to CMH · Columbus | 968 | 81.4% | 50 min | 0.10% | B+ |
| MIA to CVG · Cincinnati | 805 | 83.5% | 44 min | 0.62% | B+ |
| MIA to JAX · Jacksonville | 741 | 81.9% | 52 min | 0.54% | B+ |
| MIA to SAV · Savannah | 699 | 83.2% | 48 min | 1.14% | B |
| MIA to GSP · Greer | 698 | 79.7% | 42 min | 1.00% | B |
| MIA to BHM · Birmingham | 606 | 82.7% | 45 min | 0.66% | B+ |
| MIA to GSO · Greensboro | 534 | 80.6% | 52 min | 2.25% | B |
| MIA to TYS · Knoxville | 397 | 83.0% | 43 min | 0.50% | B+ |
| MIA to TPA · Tampa | 393 | 80.9% | 53 min | 3.56% | B− |
| MIA to GNV · Gainesville | 384 | 77.8% | 59 min | 0.00% | B+ |
| MIA to BNA · Nashvillethin sample | 357 | 89.5% | 48 min | 1.12% | A |
| MIA to SRQ · Sarasotathin sample | 357 | 85.4% | 82 min | 0.00% | A+ |
| MIA to XNA · Bentonvillethin sample | 282 | 81.0% | 53 min | 1.06% | B |
| MIA to ILM · Wilmingtonthin sample | 263 | 84.7% | 51 min | 0.38% | B+ |
| MIA to VPS · Valparaisothin sample | 257 | 86.3% | 84 min | 0.00% | A+ |
| MIA to AVL · Ashevillethin sample | 222 | 76.0% | 45 min | 0.00% | B+ |
| MIA to MCI · Kansas Citythin sample | 207 | 87.8% | 43 min | 0.97% | A+ |
| MIA to HPN · White Plainsthin sample | 189 | 75.7% | 47 min | 3.17% | B− |
| MIA to ATL · Atlantathin sample | 184 | 83.9% | 49 min | 1.63% | B |
| MIA to OKC · Oklahoma Citythin sample | 179 | 79.3% | 42 min | 0.00% | B+ |
| MIA to ORF · Norfolkthin sample | 171 | 82.8% | 45 min | 1.17% | B |
| MIA to CLE · Clevelandthin sample | 165 | 76.5% | 43 min | 1.21% | B |
Flight by flight
Envoy Air flight numbers from MIA
6 Envoy Air flight numbers leaving MIA flew their main route often enough to have a record of their own. Grouped by destination.
Departure window
Best time of day for this operation
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 13 points, against 18 points between the best and worst carrier.
- 5am–8am527 flights91.7%
- 8am–11am1,766 flights93.6%
- 11am–2pm499 flights84.3%
- 2pm–5pm3,270 flights80.9%
- 5pm–8pm2,542 flights80.3%
- 8pm–5am5,779 flights81.3%
Scale runs 70% to 100%.
Book the morning departure. Flights leaving between 8am–11am arrive on time 93.6% of the time, against 80.3% for the evening window. That is 13 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8pm–5am window is the busiest, with 5,779 flights scheduled in it.
Across the year
Seasonal pattern
July is the worst month at 72.1% on time, 17 points below October, the best at 89.5%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. December was the busiest month here, with 1,512 flights.
Delay causes
What holds this operation up
- 36%Late-arriving aircraft
- 30%National Airspace System
- 22%Carrier
- 12%Extreme weather
- 0%Security
Extreme weather accounts for 12% 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 1.9 times the usual weather exposure. The split is drawn from 121,480 reported delay minutes.
Cancellations are rare at 0.82%, below the national 1.89% 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.
Badly late arrivals are rare here: only 4.1% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
14,383 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.
Put together: the calendar is the biggest lever here, not the carrier or the hour. October runs 89.5% on time and July 72.1%, a swing of 17 points. If the dates move at all, move them out of July before you think about anything else. 14,212 completed flights over 12 months sit behind that.
Common questions
Envoy Air at MIA
How often is Envoy Air at MIA 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 17.0% of the 14,383 flights in this analysis, against 22.7% nationally. Delayed flights are late by about 50 minutes on average.
Which airline is most reliable on Envoy Air at MIA?
Envoy Air leads at 83.0% on time across 14,383 flights. Spirit Airlines is at the other end on 65.3%, a gap of 18 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 Envoy Air at MIA?
The 8am–11am departure window is the strongest at 93.6% on time. The 5pm–8pm window is the weakest at 80.3%, 13 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 July delays on Envoy Air at MIA?
July is the weakest month at 72.1% on time, compared with 89.5% in October. Across the year that is 17 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
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.