Route on-time record
RDU to BOS: most on-time flights and the best time to fly
Raleigh/Durham (Raleigh-Durham International Airport) to Boston (Boston Logan International Airport). 2,811 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 2.2% were cancelled. The most reliable flight number was Delta 1054 at 7:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
RDU → BOS
Raleigh/Durham to Boston: 2,811 nonstop flights a year
On time (12 months)
78%
Cancelled
2.2%
avg delay 18 min
Best time to leave
Before 9 AM
92% on time vs 66% 6 to 9 PM
Most reliable airline
Frontier
80% chance on time
Lowest nonstop fare seen in the next two months: $293 (JetBlue 2184 on 2026-10-23). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Delta 1054
7:00 AM → 9:01 AM2h 01m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 93%
- Cancelled
- 2.9%
- Avg arrival delay
- 5 min
- Arrived on time 93% of the time (337 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 66%).
- Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
Strong track record · 337 flights
Find Delta 1054 fares Opens this date on Aviasales#2 · Delta 1022
10:00 AM → 11:55 AM1h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 89%
- Cancelled
- 2.0%
- Avg arrival delay
- 10 min
- Arrived on time 89% of the time (294 flights, Jun 2025 to May 2026).
- Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
- 73% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 294 flights
Find Delta 1022 fares Opens this date on Aviasales#3 · JetBlue 484
8:58 AM → 10:53 AM1h 56m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
- On time (history)
- 85%
- Cancelled
- 2.3%
- Avg arrival delay
- 10 min
- Arrived on time 85% of the time (303 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 66%).
- Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
- 62% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 303 flights
Find JetBlue 484 fares Opens this date on Aviasales#4 · JetBlue 984
6:00 AM → 7:55 AM1h 55m nonstop
Local times, typical schedule. Last flown 2026-05-18.
82%
chance on time
- On time (history)
- 86%
- Cancelled
- 4.0%
- Avg arrival delay
- 7 min
- Arrived on time 86% of the time (168 flights, Jun 2025 to May 2026).
- Cancelled 4.0% of the time (7 of 175).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 66%).
- Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
Moderate track record · 168 flights
Find JetBlue 984 fares Opens this date on Aviasales#5 · Frontier 3058
8:59 AM → 11:06 AM2h 06m nonstop
Local times, typical schedule. Last flown 2026-05-30.
82%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 81% of the time (151 flights, Jun 2025 to May 2026).
- Never cancelled in 151 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 66%).
- Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
Moderate track record · 151 flights
Find Frontier 3058 fares Opens this date on Aviasales#6 · Delta 1033
12:59 PM → 3:11 PM2h 01m nonstop
Local times, typical schedule. Last flown 2026-05-31.
73%
chance on time
- On time (history)
- 73%
- Cancelled
- 1.1%
- Avg arrival delay
- 24 min
- Arrived on time 73% of the time (278 flights, Jun 2025 to May 2026).
- Departs inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Strong track record · 278 flights
Find Delta 1033 fares Opens this date on Aviasales#7 · Delta 2393
7:20 PM → 9:22 PM2h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 70%
- Cancelled
- 3.4%
- Avg arrival delay
- 27 min
- Arrived on time 70% of the time (259 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (9 of 268).
- Leaves in this route's least on-time window (6 to 9 PM: 66% on time; Before 9 AM: 92%).
- Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
Strong track record · 259 flights
Find Delta 2393 fares Opens this date on Aviasales#8 · JetBlue 1184
4:30 PM → 6:35 PM2h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
- Departs inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find JetBlue 1184 fares Opens this date on Aviasales#9 · Delta 1075
4:01 PM → 6:10 PM2h 09m nonstop
Local times, typical schedule. Last flown 2026-05-31.
68%
chance on time
- On time (history)
- 67%
- Cancelled
- 0.8%
- Avg arrival delay
- 30 min
- Arrived on time 67% of the time (235 flights, Jun 2025 to May 2026).
- Departs inside RDU's trouble window: 57% of its 14 ground stops and delay programs started between 11 AM and 5 PM.
Strong track record · 235 flights
Find Delta 1075 fares Opens this date on Aviasales#10 · JetBlue 1484
7:23 PM → 9:25 PM2h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
67%
chance on time
- On time (history)
- 68%
- Cancelled
- 2.0%
- Avg arrival delay
- 28 min
- Arrived on time 68% of the time (192 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 66% on time; Before 9 AM: 92%).
- Departs outside RDU's trouble window (11 AM to 5 PM, when 57% of its 14 ground stops and delay programs started).
- 60% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 192 flights
Find JetBlue 1484 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Frontier Airlines80%
151 flights · 81% on time as flown · 1.1% cancel
- Delta Air Lines78%
1,438 flights · 80% on time as flown · 2.1% cancel
- Republic Airways (sold as American Eagle, Delta Connection or United Express)76%
137 flights · 80% on time as flown · 3.6% cancel
- JetBlue74%
1,085 flights · 76% on time as flown · 2.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM92%
664 flights · avg delay 6 min
- 9 AM to noon86%
694 flights · avg delay 10 min
- Noon to 3 PM71%
437 flights · avg delay 23 min
- 3 to 6 PM68%
464 flights · avg delay 30 min
- 6 to 9 PM66%
550 flights · avg delay 30 min
Best day: Wednesday (82%). Worst: Friday (76%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft44%
- Air traffic control and airport volume35%
- Airline (crew, maintenance, boarding)20%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
RDU to BOS questions
- What time of day is best to fly RDU to BOS?
- Before 9 AM: 92% of flights arrived on time, against 66% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from RDU to BOS?
- Frontier, with a season-adjusted 80% chance of operating and arriving on time over 151 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on RDU to BOS?
- July (68% on time); the best was March (87%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from RDU
- BOS to RDU (return)
- RDU to ATL 87%
- RDU to ORD 74%
- RDU to CLT 82%
- RDU to LGA 69%
- RDU to MCO 78%
- RDU to PHL 73%
- RDU to JFK 75%
- RDU to MIA 76%
- RDU to DFW 77%
- RDU to BNA 80%
- RDU to EWR 74%
- RDU to DCA 63%
Live status: FAA delays and ground stops