BLV to TYS flight delays
Belleville, IL (BLV) Knoxville, TN (TYS) · 373 miles
14 flights · January 2025 – August 2026 · the publishing regulator
This route flew fewer than 50 times in the period, which is too few for an on-time rate to mean anything. The figures below are shown as recorded, but the route is not graded.
78.57%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
262 min
When late, late by
Average across delayed arrivals
56 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 262 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The Belleville to Knoxville route sits close to the middle of the record — neither notably punctual nor notably late.
Every airline on BLV to TYS
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 | 14 | 78.57% | 0% | 262 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
TYS to BLV Knoxville back to Belleville 78.57% on time —Common questions
Are flights from Belleville to Knoxville usually delayed?
78.57% of flights on the BLV to TYS route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
How often are BLV to TYS flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
When BLV to TYS flights are late, how late are they?
About 262 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 BLV to TYS 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 →