RDU to BOS flight delays & on-time performance
Nonstop flights from Raleigh-Durham International Airport to Boston Logan 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
79%
arrived < 15 min late
Cancelled
2.8%
79 flights
Avg arrival delay
17 min
79 min when late
Airlines
4
2,827 flights tracked
Key facts
- Flights from Raleigh/Durham (RDU) to Boston (BOS) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 2.8% were cancelled, and 9% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (80% on time); JetBlue was the least (77%).
- Departures scheduled around 7am did best (92% on time); around 6pm did worst (60%).
- Saturday was the most reliable day to fly (82% on time) and Thursday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (46%).
Which airline is most on time from RDU to BOS?
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. | 81% | 5.2% | 17 min | 6.3% | 134 |
| Delta Air Lines | 80% | 2.7% | 18 min | 9.7% | 1,434 |
| Frontier Airlines | 80% | 0.0% | 12 min | 6.0% | 168 |
| JetBlue | 77% | 3.0% | 17 min | 9.6% | 1,091 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%301 flights
- 7am92%303 flights
- 8am87%104 flights
- 9am88%444 flights
- 10am82%230 flights
- 11am78%46 flights
- 12pm73%127 flights
- 1pm73%209 flights
- 2pm61%128 flights
- 3pm56%68 flights
- 4pm69%277 flights
- 5pm84%74 flights
- 6pm60%103 flights
- 7pm77%199 flights
- 8pm67%202 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday78%4.9% cancelled
- Tuesday82%2.9% cancelled
- Wednesday79%0.5% cancelled
- Thursday77%2.1% cancelled
- Friday80%2.2% cancelled
- Saturday82%2.8% cancelled
- Sunday78%3.8% 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 aircraft46%
- Air traffic control & airport congestion36%
- Airline (crew, maintenance, cleaning, fueling)18%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)43%
- Extreme weather35%
- Air traffic control & airport congestion22%
- Security0%
RDU to BOS: common questions
- How often are RDU to BOS flights on time?
- 79% 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 Raleigh/Durham to Boston cancelled?
- 2.8% of scheduled flights were cancelled (79 of 2,827).
- How long are typical delays?
- Across all flights the average arrival delay was 17 min (early arrivals count as zero). Flights that were late arrived 79 min behind schedule on average, and 9.3% of flights were an hour or more late.
- How long is taxi time at RDU?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to RDU — 76% on time
More flights from Raleigh/Durham
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: RDU → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.