Baltimore (BWI) to Grand Rapids (GRR): On-Time Performance
Data through July 2026
Baltimore (BWI) to Grand Rapids (GRR) effectively runs on two schedules. In November 2024, 97% of arrivals were on time; in June 2026 that fell to 50% — a 47-point seasonal swing. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (84% vs 61%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 0.9%
- Flights/day
- 1.2
- last 12 months
- Duration
- 1h 43m
- scheduled
- Distance
- 528 mi
Monthly on-time trend
Best time to fly from BWI to GRR
Aim for departures around 8 a.m. (90% on-time); avoid 10 p.m. departures (53%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 19 min |
| Tuesday | 79% | 10 min |
| Wednesday | 82% | 15 min |
| Thursday | 78% | 19 min |
| Friday | 72% | 13 min |
| Saturday | 75% | 13 min |
| Sundaybest | 83% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft46%
- Airline operations34%
- National airspace system11%
- Weather9%
- Security1%
Frequently asked questions
- How often are flights from BWI to GRR delayed?
- 22% of BWI–GRR flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 15 minutes.
- What is the best time of day to fly from BWI to GRR?
- Departures around 8 a.m. have the best record (90% on-time), while departures around 10 p.m. have the worst (53%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BWI to GRR?
- The scheduled BWI–GRR flight time averages 1h 43m over 528 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are BWI to GRR flights cancelled?
- 0.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from BWI to GRR?
- June 2026 was the roughest month in this dataset, with only 50% of arrivals on time. The best was November 2024 at 97%. If your dates are flexible, that 47-point gap is worth planning around.
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Based on 877 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.