Airport reliability
Belleville (BLV) on-time performance
How reliably flights leave Belleville, IL (BLV) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Belleville, IL1,396 departures in 12 months
- Departures on time
- 69.4% U.S. average 75.6%
- Cancelled
- 0.9% U.S. average 1.9%
- 60+ minutes late
- 12.4% U.S. average 8.1%
- Scheduled departures
- 1,396 12 months
What this means
BLV departures ran below the U.S. average.
- 69.4% of the 1,396 scheduled departures from Belleville (BLV) arrived at their destination on time, 6.2 points lower than the U.S. average of 75.6%.
- 0.9% of departures were cancelled (U.S. average 1.9%), and 12.4% arrived an hour or more late.
- Flights arriving at BLV were on time 74.4% of the time.
- Over the last 3 years, November was the most reliable month for departures from BLV (86.3% on time) and July the least reliable (62.0%).
- Cancellations peaked in January, when 3.0% of flights were cancelled.
- Flights scheduled to depart 10 am to 11 am were the most punctual (84.9% on time); flights scheduled to depart 8 pm to 9 pm were the least (53.4%).
Airlines at BLV
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Allegiant Air | 69.4% | 0.9% | 12.4% | 106 min | 1,396 |
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On-time rate by departure hour
Share of scheduled flights on time BLV average 69.4%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing 8 am to 9 am | 77.8% | 126 |
| Departing 9 am to 10 am | 79.7% | 123 |
| Departing 10 am to 11 am | 84.9% | 166 |
| Departing 11 am to noon | 83.8% | 80 |
| Departing noon to 1 pm | 80.7% | 57 |
| Departing 1 pm to 2 pm | 70.7% | 82 |
| Departing 2 pm to 3 pm | 67.3% | 110 |
| Departing 3 pm to 4 pm | 55.3% | 85 |
| Departing 4 pm to 5 pm | 63.2% | 125 |
| Departing 5 pm to 6 pm | 61.8% | 89 |
| Departing 6 pm to 7 pm | Insufficient sample | 39 |
| Departing 7 pm to 8 pm | Insufficient sample | 39 |
| Departing 8 pm to 9 pm | 53.4% | 148 |
| Departing 9 pm to 10 pm | 56.9% | 123 |
| Departing 10 pm to 11 pm | Insufficient sample | 4 |
Best and worst months at BLV
Share of scheduled flights on time 12-month average 69.4%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 74.9% | 203 |
| February | 72.1% | 219 |
| March | 64.2% | 377 |
| April | 81.2% | 277 |
| May | 68.0% | 375 |
| June | 65.4% | 506 |
| July | 62.0% | 518 |
| August | 70.7% | 376 |
| September | 84.8% | 204 |
| October | 77.9% | 235 |
| November | 86.3% | 212 |
| December | 70.9% | 251 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 81.9% | 83 |
| Oct 2025 | 72.4% | 87 |
| Nov 2025 | 82.1% | 78 |
| Dec 2025 | 73.3% | 101 |
| Jan 2026 | 79.2% | 77 |
| Feb 2026 | 72.9% | 85 |
| Mar 2026 | 65.2% | 138 |
| Apr 2026 | 79.0% | 100 |
| May 2026 | 62.1% | 140 |
| Jun 2026 | 58.0% | 181 |
| Jul 2026 | 61.6% | 190 |
| Aug 2026 | 72.8% | 136 |
Busiest routes from BLV
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Valparaiso (VPS) | 66.9% | 0.8% | 1 | 396 |
| Punta Gorda (PGD) | 72.9% | 0.9% | 1 | 225 |
| Sanford (SFB) | 64.9% | 0.6% | 1 | 171 |
| St. Petersburg (PIE) | 67.1% | 0.6% | 1 | 170 |
| Gulf Shores (GUF) | 75.2% | 2.6% | 1 | 117 |
| Sarasota/Bradenton (SRQ) | 89.4% | 0.0% | 1 | 104 |
| Fort Lauderdale (FLL) | 59.3% | 0.0% | 1 | 59 |
| Las Vegas (LAS) | 72.2% | 0.0% | 1 | 54 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Belleville, IL (BLV) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.