Airports › Illinois
Airport · 12 months to July 2026
Scott AFB MidAmerica St Louis: delays and on-time record
Belleville, Illinois
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report. Data through July 2026; this is a monthly history, not live airport status.
Reporting carriers scheduled 1,395 domestic departures from Scott AFB MidAmerica St Louis (BLV), Belleville, in the 12 months to July 2026: about 4 a day to 12 destinations.
72.4% of those flights left the gate less than 15 minutes late, 3.7 points below the national departure figure of 76.1%. Flights arriving at BLV were on time 74.3% of the time, 1.7 points below the national arrival figure of 76.0%.
0.9% of scheduled departures were cancelled (national: 1.8%), and the average departure delay, counting early and on-time departures as zero, was 32.4 min.
Allegiant Air is the largest reporting carrier at BLV with 100% of departures.
On-time departures are up 0.8 points on the previous 12 months (71.6%).
Of the delay minutes that carriers assigned to a BTS cause category for flights leaving BLV, late-arriving aircraft 50%, air carrier 29% and national aviation system 12%.
- On time 69.2%
- Arrived 15+ minutes late 29.9%
- Cancelled 0.9%
- Diverted 0.1%
As origin and as destination, against the nation
| Measure | Departures from BLV | Arrivals at BLV | All reported flights | BLV departures, previous 12 months |
|---|---|---|---|---|
| Departed on time (less than 15 min late) | 72.4% | 76.7% | 76.1% | 71.6% |
| Arrived on time | 69.2% | 74.3% | 76.0% | 69.1% |
| Cancelled | 0.9% | 0.6% | 1.8% | 1.5% |
| Diverted | 0.1% | 0.1% | 0.3% | 0.5% |
| Average departure delay (late minutes only) | 32.4 min | 19.7 min | 17.4 min | 27.8 min |
| Arrival delay minutes per 100 flights | 3,359 | 2,098 | 1,684 | 2,796 |
| Scheduled flights | 1,395 | 1,394 | 7,043,858 | 1,286 |
12 months to July 2026. The first column follows flights that left BLV; the second follows flights that landed there. Year on year, on-time departures moved +0.8 pts.
Airlines at BLV
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| G4 Allegiant Air | 1,395 | 100% | 69.2% | 23.8 min | 0.9% |
Departures from BLV by reporting carrier, ordered by flights; on time means the flight reached its destination less than 15 minutes late. Green is at or above the airport's overall share of 69.2%. Carriers fly different routes at different hours, so the rows are not a like-for-like test.
Busiest routes from BLV
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BLV–VPS | Belleville to Valparaiso | 394 | 65.7% | 30.4 min | 0.8% |
| BLV–PGD | Belleville to Punta Gorda | 225 | 72.9% | 11.0 min | 0.9% |
| BLV–PIE | Belleville to St. Petersburg | 172 | 68.0% | 47.5 min | 0.6% |
| BLV–SFB | Belleville to Sanford | 166 | 62.7% | 32.2 min | 0.6% |
| BLV–GUF | Belleville to Gulf Shores | 115 | 78.3% | 0.0 min | 2.6% |
| BLV–SRQ | Belleville to Sarasota/Bradenton | 108 | 90.7% | -5.5 min | 0.0% |
| BLV–FLL | Belleville to Fort Lauderdale | 59 | 61.0% | 25.6 min | 0.0% |
| BLV–LAS | Belleville to Las Vegas | 55 | 78.2% | 6.6 min | 0.0% |
| BLV–JAX | Belleville to Jacksonville | 48 | 41.7% | 31.4 min | 0.0% |
| BLV–MYR | Belleville to Myrtle Beach | 35 | 71.4% | 1.9 min | 5.7% |
The 10 busiest of 12 routes with reported flights. Routes with at least 10 flights a month have their own page.
Month by month
By scheduled departure hour
Among hours with at least 30 departures, 10 am to 11 am had the highest on-time share (89.5% of 171 flights) and 8 pm to 9 pm the lowest (52.1% of 144).
Delay causes
Cancellations by reported reason (12 in the period): air carrier 50%, weather 50%, national aviation system 0%, security 0%.
Checkpoint volumes
TSA publishes daily checkpoint passenger counts for the country as a whole, not for BLV on its own. The national series through September 2026 is on the checkpoint volumes page.
Questions and answers
How often do flights leave BLV on time?
72.4% of the 1,395 scheduled domestic departures in the 12 months to July 2026 left less than 15 minutes late; the national figure was 76.1%. 0.9% were cancelled.
How often do flights arrive at BLV on time?
74.3% of 1,394 scheduled arrivals were on time by the BTS definition, against 76.0% nationally.
Which airline has the highest on-time share at BLV?
Only one reporting carrier has enough departures here to report a share.
What causes delays at BLV?
For departures from BLV that reached their destination 15 or more minutes late, carriers attributed the delay minutes as follows: late-arriving aircraft 50%, air carrier 29%, national aviation system 12%, extreme weather 10%, security 0%.
What time of day has the highest on-time share at BLV?
Departures scheduled from 10 am to 11 am local time left on time 89.5% of the time, the highest of any hour with enough flights to compare; 8 pm to 9 pm was lowest at 52.1%.
Is it getting better?
On-time departures for the 12 months to July 2026 were 72.4%, up 0.8 points on the previous 12 months (71.6%). The monthly chart shows each of the last 36 months, and each month has its own page.
Does this page show today's delays at BLV?
No. BTS publishes on-time records about two months after the month ends, so this page is a monthly history through July 2026. For live conditions use the FAA airport status service or your airline.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026; airport name from the BTS airport lookup table. US government works in the public domain. Domestic scheduled flights by reporting carriers only: international flights, charters and smaller carriers are not in the source. Totals and averages only; no individual flight or aircraft is identified. See the methodology; report processing errors through corrections.