PlainFlights

Route · RDU → BOS · 2020–2025 BTS data

Raleigh/Durham to Boston

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), RDU to BOS (Raleigh/Durham to Boston) ranks #562 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

81.4%
On-time
+2.4 pts
vs US avg
91 min
Delay when late
16,146
Flights
#562 of 4927
Corpus placement

Cancelled

1.1%

Best Month

Nov 2024 90%

Worst Month

Sep 2025 67%

Distance

612 mi

Carriers

27

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 249 58 4 0 B6,DL,YX,F9
Nov 2025 249 42 3 0 DL,F9,B6
Oct 2025 291 80 7 0 B6,DL,F9
Sep 2025 256 85 3 0 DL,YX,F9,B6
Aug 2025 230 33 2 0 YX,F9,B6,DL
Jul 2025 230 66 5 0 B6,DL,YX,F9
Jun 2025 238 58 0 0 B6,DL,YX,F9
May 2025 257 62 1 0 B6,YX,DL,F9
Apr 2025 242 31 1 0 DL,F9,YX,B6
Mar 2025 243 26 3 0 B6,YX,DL,F9
Feb 2025 198 32 7 0 B6,YX,DL,F9
Jan 2025 217 36 1 0 B6,YX,DL,F9
Dec 2024 263 46 5 1 B6,DL,F9,YX
Nov 2024 258 26 0 0 B6,YX,DL,F9
Oct 2024 294 41 0 0 DL,F9,B6
Sep 2024 287 63 1 0 YX,B6,DL,F9
Aug 2024 305 74 9 0 B6,DL,F9,YX
Jul 2024 268 59 6 0 B6,DL,F9,YX
Jun 2024 267 49 3 2 B6,DL,F9,YX
May 2024 275 45 0 0 B6,DL,F9,YX
Apr 2024 234 48 1 0 B6,DL,F9
Mar 2024 202 26 1 0 B6,DL,YX
Feb 2024 178 29 2 0 B6,DL,YX
Jan 2024 182 51 2 0 B6,DL,YX

RDU–BOS seasonal on-time pattern

Best: March (88.3%) · weakest: July (70.9%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 81.5%

Strongest calendar month

March

88.3% on-time · ~236 flights/mo

Busiest calendar month

May

~258 flights/mo avg

Weakest calendar month

July

70.9% on-time · ~217 flights/mo

Cancellation Rate

1.1%

67 of 5,913 flights

Diversion Rate

0.1%

3 of 5,913 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

RDU - Raleigh/Durham

Full on-time, delay-cause, and seasonal performance for Raleigh/Durham, NC.

RDU on-time profile

BOS - Boston

Full on-time, delay-cause, and seasonal performance for Boston, MA.

BOS on-time profile

Compare the two airports

See RDU and BOS side by side on delays, cancellations, and reliability.

Compare RDU vs BOS

Origin-hub reliability standing

Mid-pack among RDU departures

From RDU, this corridor sits with 25 other 75–85% on-time routes out of 35 tracked departures, not the hub's reliability leaders (9 at ≥85%) and not the softest ( 1 below 75%). Destination: Boston · fleet on-time rank #2589 of 4927.

What the Data Says About RDU to BOS

16,146 tracked flights put the RDU to BOS pairing (Raleigh/Durham to Boston) at a 81.4% on-time rate, squarely in line with the wider network. Delays that do occur run 91.0 minutes on average. Across the 612-mile route and its 27 carriers, the trailing 24 months show 1.1% cancelled and 0.1% diverted (5,913 flights sampled).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 90% on-time, while Sep 2025 came in at just 67% - a 23-point swing worth factoring into travel timing.

On the multi-year calendar, RDU–BOS peaks in March at 88.3% on-time while May carries the heaviest traffic (~258 flights per month) ; the softest month is July at 70.9%, a 17.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does RDU to BOS rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, RDU to BOS ranks #562 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from RDU to BOS? ▼
Flights from Raleigh/Durham to Boston have a 81.4% on-time rate based on 16,146 flights. The average delay is 91.0 minutes. The best recent month was Nov 2024 with 90% on-time.
What is the cancellation rate for RDU to BOS? ▼
Over the last 24 months, 1.1% of flights on this route were cancelled (67 of 5,913 flights) and 0.1% were diverted.
How far is the flight from RDU to BOS? ▼
The flight distance from Raleigh/Durham (RDU) to Boston (BOS) is approximately 612 miles. This route is served by 27 carriers.
When is the best time to fly from RDU to BOS? ▼
The best recent month for on-time performance was Nov 2024 (90% on-time). The worst was Sep 2025 (67% on-time). Consider booking during months with historically better performance.

Airports on this route

RDU Airport

Raleigh/Durham
BOS Airport

Boston
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using RDU–BOS data

RDU–BOS is mid-pack at 81.4% on-time; month and carrier mix move more than the corridor headline.

  • Compare RDU and BOS airport profiles: delay causes and top routes differ even on the same corridor. RDU airport
  • If your dates flex, March (88.3% on-time) beats July (70.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 81.4% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.