BOS to RDU flight delays & on-time performance
Nonstop flights from Boston Logan International Airport to Raleigh-Durham International Airport · 612 miles · Aug 2025 – Jul 2026
- BOS: Ground delay program, avg 1 hour and 10 minutes. Flights to BOS are delayed at their origin airports due to runway construction: average 1 hour and 10 minutes, up to 3 hours.
On-time arrivals
76%
arrived < 15 min late
Cancelled
2.7%
76 flights
Avg arrival delay
19 min
75 min when late
Airlines
4
2,828 flights tracked
Key facts
- Flights from Boston (BOS) to Raleigh/Durham (RDU) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.7% were cancelled, and 11% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (78% on time); Frontier Airlines was the least (72%).
- Departures scheduled around 6am did best (90% on time); around 9pm did worst (49%).
- Wednesday was the most reliable day to fly (81% on time) and Sunday the least (70%).
- The largest source of delay minutes was late-arriving aircraft (49%).
Which airline is most on time from BOS to RDU?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 82% | 3.8% | 14 min | 6.3% | 133 |
| Delta Air Lines | 78% | 2.6% | 20 min | 11.0% | 1,435 |
| JetBlue | 73% | 3.0% | 19 min | 12.0% | 1,092 |
| Frontier Airlines | 72% | 0.0% | 15 min | 5.4% | 168 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am90%424 flights
- 7am87%160 flights
- 8am72%140 flights
- 9am87%135 flights
- 10am89%224 flights
- 11am72%118 flights
- 12pm81%139 flights
- 1pm82%278 flights
- 2pm82%73 flights
- 3pm76%110 flights
- 4pm76%184 flights
- 5pm64%285 flights
- 6pm62%45 flights
- 7pm53%214 flights
- 8pm57%207 flights
- 9pm49%91 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%4.7% cancelled
- Tuesday80%2.9% cancelled
- Wednesday81%1.0% cancelled
- Thursday71%2.1% cancelled
- Friday75%2.2% cancelled
- Saturday80%2.2% cancelled
- Sunday70%3.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft49%
- Airline (crew, maintenance, cleaning, fueling)36%
- Air traffic control & airport congestion12%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)42%
- Extreme weather37%
- Air traffic control & airport congestion21%
- Security0%
BOS to RDU: common questions
- How often are BOS to RDU flights on time?
- 76% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Boston to Raleigh/Durham cancelled?
- 2.7% of scheduled flights were cancelled (76 of 2,828).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 75 min behind schedule on average, and 10.8% of flights were an hour or more late.
- How long is taxi time at BOS?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: RDU to BOS — 79% on time
More flights from Boston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BOS → RDU, nonstop flights by US airlines that report to the DOT. How we calculate this.