SFB to TRI flight delays
Sanford, FL (SFB) Bristol/Johnson City/Kingsport, TN (TRI) · 535 miles
130 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
50.77%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
66 min
When late, late by
Average across delayed arrivals
34 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Flights from Sanford to Bristol/Johnson City/Kingsport arrive late more often than they arrive on time. At this rate lateness is the normal outcome, not the exception, and the schedule is better read as an aspiration than a plan.
The two directions do not behave alike. TRI to SFB arrives on time 14.8 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
This route does worse than its own airport. SFB as a whole runs 21.4 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
Only Allegiant Air flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over January 2025 – August 2026, Allegiant Air arrived on time most often on SFB to TRI. Flights ran closest to schedule in March and worst in June.
Every airline on SFB to TRI
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Allegiant Air | 130 | 50.77% | 0% | 66 min | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
Other routes from Sanford
- SFB → ABE · Allentown/Bethlehem/Easton C
- SFB → TYS · Knoxville F
- SFB → AVL · Asheville D
- SFB → GRR · Grand Rapids D
- SFB → CVG · Cincinnati D
- SFB → FNT · Flint C
- SFB → BGR · Bangor C
- SFB → MDT · Harrisburg C
- SFB → ATW · Appleton C
- SFB → SBN · South Bend D
- SFB → IND · Indianapolis F
- SFB → LEX · Lexington F
Common questions
Are flights from Sanford to Bristol/Johnson City/Kingsport usually delayed?
50.77% of flights on the SFB to TRI route arrived within 15 minutes of schedule, so roughly 5 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from Sanford to Bristol/Johnson City/Kingsport?
Only Allegiant Air appears in the published record on this route, with 130 flights and 50.77% arriving on time.
How often are SFB to TRI flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
When SFB to TRI flights are late, how late are they?
About 66 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on SFB to TRI during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →