71% of flights from Sanford to Grand Rapids arrived on time over the past 12 months. That is worse than the typical U.S. route. 12% of flights arrived more than an hour late or not at all.
How late?
The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for SFB → GRR: when a flight was late, it was under 45 minutes late 48% of the time. About 1 in 9 flights landed an hour or more late, and 1 in 57 three hours or more; 0.8% were cancelled outright.
- On time or early71%
- 15–30 min late8.1%
- 30–60 min late8.8%
- 1–2 hours late7.8%
- 2–3 hours late1.3%
- 3+ hours late1.8%
- Diverted0.3%
- Cancelled0.8%
Share of all 396 scheduled flights, past 12 months, by arrival time against schedule.
By airline
| Airline | Flights | On time | Cancelled | Typical arrival | 1h+ late | Avg when late | Operated by |
|---|---|---|---|---|---|---|---|
| Allegiant Air | 396 | 71% | 0.8% | −2 min | 10.9% | +74 min | Allegiant Air |
Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.
Best time of day to fly
On-time rate by scheduled departure hour (local time at SFB). Delays build through the day as late planes knock on, so early flights usually do best.
By month
Each calendar month pooled over 2023–2026. Best: April (80%). Worst: February (72%).
By day of week
| Day | Flights | On time | Cancelled |
|---|---|---|---|
| Monday | 60 | — | — |
| Tuesday | 36 | — | — |
| Wednesday | 49 | — | — |
| Thursday | 64 | — | — |
| Friday | 60 | — | — |
| Saturday | 61 | — | — |
| Sunday | 66 | — | — |
Why flights were late
Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.
Cancellations: airline 2 · weather 1
Month by month
Not enough months with data to draw a trend.
Worst days in the past year
| Date | Flights | On time | Cancelled |
|---|---|---|---|
| Apr 4, 2026 | 3 | 0% | 0 |
| Dec 20, 2025 | 3 | 33% | 0 |
| Jan 4, 2026 | 3 | 67% | 0 |
| Mar 28, 2026 | 3 | 67% | 0 |
| Apr 11, 2026 | 3 | 100% | 0 |
Nearby airport alternatives
Other ways to make the same trip, using airports within 60 miles of Sanford or Grand Rapids. MCO → GRR has been 8 points more reliable.
| Route | Flights | On time | Cancelled |
|---|---|---|---|
| SFB → GRR (this route) | 396 | 71% | 0.8% |
| MCO → GRR Orlando to Gerald R. Ford | 393 | 79% | 0.5% |
Questions
How often are flights from SFB to GRR on time?
71% of 396 scheduled flights from Sanford, FL to Grand Rapids, MI arrived within 15 minutes of schedule between September 2025 and August 2026. 0.8% were cancelled.
What month has the most delays from SFB to GRR?
February (72% on time). The best month is April (80%), over 2023–2026.
Related
- GRR → SFB (return)
- Orlando Sanford (SFB) delays by hour
- Flights into Gerald R. Ford (GRR)
- Allegiant Air on-time record
- Connecting off this flight? Check the risk
Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.