Route Reliability
Raleigh–Durham → Boston
RDU–BOS · 612 miles · Raleigh–Durham International Airport to Boston Logan International Airport
- 79%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 2.2%
- Cancelled
- 2,811
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Frontier Airlines83%151 flights
- 2.Delta Air Lines80%1,575 flights
- 3.JetBlue Airways76%1,085 flights
What the data says
Morning flights do better here.
RDU–BOS flights departing between 6–9 AM arrived on time 92% of the time, versus 67% between 6–9 PM.
Thursday is the weak spot.
RDU–BOS flights arrived on time 85% of the time on Saturdays. On Thursdays: 76%.
Frontier Airlines has a slight edge here.
Frontier Airlines arrived on time 83% of the time on this route; JetBlue Airways managed 76%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon77%(420 flights)
- Tue80%(374 flights)
- Wed80%(369 flights)
- Thu76%(422 flights)
- Fri78%(428 flights)
- Sat85%(299 flights)
- Sun77%(437 flights)
- 3–6 AM91%(11 flights)
- 6–9 AM92%(641 flights)
- 9 AM–12 PM87%(680 flights)
- 12–3 PM72%(426 flights)
- 3–6 PM68%(456 flights)
- 6–9 PM67%(533 flights)
- 9 PM–12 AM—(2 flights)
Jun 76% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 76% | 238 |
| July 2025 | 71% | 225 |
| August 2025 | 86% | 228 |
| September 2025 | 67% | 253 |
| October 2025 | 72% | 284 |
| November 2025 | 83% | 246 |
| December 2025 | 77% | 245 |
| January 2026 | 83% | 155 |
| February 2026 | 84% | 154 |
| March 2026 | 84% | 218 |
| April 2026 | 84% | 244 |
| May 2026 | 84% | 259 |
Keep nerding
Based on 2,811 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.