Route Reliability
Grand Rapids → Baltimore
GRR–BWI · 528 miles · Gerald R. Ford International Airport to Baltimore/Washington International Thurgood Marshall Airport
- 82%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 1.2%
- Cancelled
- 424
- Flights in the data
Data through May 2026.
Airlines on this route
- Southwest Airlines82% on time · 423 flights
- Delta Air Lines100% on time · 1 flights
Too little history on this route to call a winner. We rank airlines only after 100 flights each.
What the data says
Morning flights do better here.
GRR–BWI flights departing between 9 AM–12 PM arrived on time 100% of the time, versus 76% between 3–6 PM.
Friday is doing you no favors.
GRR–BWI flights arrived on time 90% of the time on Saturdays and just 70% on Fridays. That gap is worth planning around.
Trending in the right direction.
GRR–BWI flights arrived on time 89% of the time over the last three months in the data, compared with 79% in the three months before that.
Flights on this route
The breakdown
- Mon78%(60 flights)
- Tue88%(60 flights)
- Wed87%(60 flights)
- Thu77%(60 flights)
- Fri70%(59 flights)
- Sat90%(60 flights)
- Sun85%(58 flights)
- 3–6 AM93%(57 flights)
- 6–9 AM93%(58 flights)
- 9 AM–12 PM100%(16 flights)
- 12–3 PM78%(86 flights)
- 3–6 PM76%(199 flights)
- 6–9 PM—(1 flights)
Jun 79% → May 95% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 48 |
| July 2025 | 86% | 50 |
| August 2025 | 76% | 33 |
| September 2025 | 71% | 31 |
| October 2025 | 81% | 31 |
| November 2025 | 80% | 30 |
| December 2025 | 84% | 31 |
| January 2026 | 80% | 30 |
| February 2026 | 73% | 26 |
| March 2026 | 77% | 30 |
| April 2026 | 94% | 36 |
| May 2026 | 95% | 41 |
Same trip, other airports
Keep nerding
Based on 424 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.