Carrier performance at one airport
G4→SFB
Allegiant Air at Orlando Sanford International
- Departures
- 10,104
- Period
- September 2025 to August 2026
- Routes
- 25
- Rank here
- #1 of 1
Allegiant Air at Sanford sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 10,104 flights, with a median arrival 2 minutes early.
Measured against the airport rather than the country, Allegiant Air runs half a point ahead of the 70.5% weighted average across all carriers at SFB. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.
Key figures
On time
70.5%
10,008 completed departures
Avg delay
84 min
Across delayed flights only
Cancelled
0.65%
At SFB, this carrier only
Rank here
#1
Of 1 carriers clearing the floor at SFB
These figures cover 10,000 flights between September 2025 and August 2026. Beyond the headline rate, 12.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Against the competition
Every carrier at SFB, ranked
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 |
|---|---|---|---|---|---|
| Allegiant Air (this page) | 10,104 | 70.5% | 84 min | 0.65% | C+ |
Route by route
Where Allegiant Air flies from SFB
Allegiant Air operates 25 routes out of SFB 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 |
|---|---|---|---|---|---|
| SFB to ABE · Allentown | 642 | 75.4% | 101 min | 0.31% | B+ |
| SFB to TYS · Knoxville | 635 | 64.2% | 70 min | 0.63% | D+ |
| SFB to AVL · Asheville | 513 | 71.9% | 86 min | 0.58% | C+ |
| SFB to GRR · Grand Rapids | 396 | 71.9% | 74 min | 0.76% | C+ |
| SFB to CVG · Cincinnatithin sample | 352 | 64.7% | 81 min | 0.28% | D+ |
| SFB to FNT · Flintthin sample | 317 | 72.8% | 86 min | 0.32% | C+ |
| SFB to BGR · Bangorthin sample | 283 | 83.1% | 75 min | 1.77% | B |
| SFB to ATW · Appletonthin sample | 256 | 76.7% | 100 min | 1.17% | B |
| SFB to SBN · South Bendthin sample | 250 | 74.2% | 63 min | 0.40% | C+ |
| SFB to IND · Indianapolisthin sample | 222 | 72.3% | 88 min | 0.45% | C+ |
| SFB to LEX · Lexingtonthin sample | 212 | 60.1% | 77 min | 1.89% | D |
| SFB to DSM · Des Moinesthin sample | 203 | 78.1% | 95 min | 0.99% | B+ |
| SFB to USA · Concordthin sample | 194 | 50.5% | 93 min | 1.03% | F |
| SFB to FWA · Fort Waynethin sample | 180 | 80.4% | 81 min | 0.00% | B+ |
| SFB to BLV · Bellevillethin sample | 171 | 72.9% | 80 min | 0.58% | C+ |
| SFB to PIT · Pittsburghthin sample | 170 | 66.5% | 116 min | 1.76% | C |
| SFB to CID · Cedar Rapidsthin sample | 167 | 82.0% | 70 min | 0.00% | B+ |
| SFB to ELM · Elmirathin sample | 161 | 77.4% | 95 min | 0.62% | B+ |
| SFB to LCK · Columbusthin sample | 161 | 75.8% | 75 min | 0.00% | B+ |
| SFB to SGF · Springfieldthin sample | 157 | 79.5% | 76 min | 0.64% | B+ |
| SFB to RFD · Rockfordthin sample | 151 | 74.0% | 83 min | 0.66% | C+ |
| SFB to PIA · Peoriathin sample | 142 | 80.9% | 74 min | 0.70% | B+ |
| SFB to HTS · Huntingtonthin sample | 142 | 55.7% | 81 min | 1.41% | D |
| SFB to PBG · Plattsburghthin sample | 139 | 67.6% | 65 min | 0.00% | C+ |
| SFB to TRI · Bristolthin sample | 137 | 50.4% | 58 min | 0.00% | F+ |
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 41 points, against half a point between the best and worst carrier.
- 5am–8am1,988 flights89.4%
- 8am–11am1,803 flights87.5%
- 11am–2pm1,960 flights65.7%
- 2pm–5pm1,916 flights64.3%
- 5pm–8pm1,764 flights48.0%
- 8pm–5am673 flights59.1%
Scale runs 40% to 95%.
The 5pm–8pm window is where this operation falls apart: 48.0% on time, against 89.4% 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 5am–8am window is the busiest, with 1,988 flights scheduled in it.
Across the year
Seasonal pattern
July is the worst month at 62.8% on time, 19 points below September, the best at 81.4%. 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. July was the busiest month here, with 1,025 flights.
Delay causes
What holds this operation up
- 39%Carrier
- 28%Late-arriving aircraft
- 21%Extreme weather
- 12%National Airspace System
- 0%Security
Extreme weather accounts for 21% 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 3.4 times the usual weather exposure. The split is drawn from 247,172 reported delay minutes.
Cancellations are rare at 0.65%, 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.
12.1% 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.
The sample behind these figures is 10,104 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.
Put together: the calendar is the biggest lever here, not the carrier or the hour. September runs 81.4% on time and July 62.8%, a swing of 19 points. If the dates move at all, move them out of July before you think about anything else. 10,008 completed flights over 12 months sit behind that.
Common questions
Allegiant Air at SFB
How often is Allegiant Air at SFB delayed?
Roughly one flight in three arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 29.5% of the 10,104 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
How reliable is Allegiant Air at SFB compared with the rest of the country?
70.5% of flights arrive on time here against a national 77.3%, a difference of 7 points against it. That is worth a C+ on this site's grading scale.
What time of day has the fewest delays on Allegiant Air at SFB?
The 5am–8am departure window is the strongest at 89.4% on time. The 5pm–8pm window is the weakest at 48.0%, 41 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 Allegiant Air at SFB?
July is the weakest month at 62.8% on time, compared with 81.4% in September. Across the year that is 19 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.