Route profile
BOS→EWR
Flight reliability, delays and best times to fly from Boston to Newark, 200 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 10% of comparable major US routes (4,598 compared)
Calculated from 12,192 flights. How this is calculated
BOS → EWR arrives on time 77.3% of the time; the return trip, EWR → BOS, arrives on time 74.3% of the time, a 3.1-point gap between the two directions of the same city pair.
BOS → EWR spends 33.0 minutes on the ground on a 200-mile trip: 23.0 minutes from pushback to wheels-up at BOS and 10.0 minutes from touchdown to gate at EWR.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Why BOS → EWR flights are cancelled
July 2023 – July 2026
BOS → EWR cancelled 469 of 12,192 scheduled flights — about 1 in every 26. The reason filed most often was extreme weather, 49.3% of the cancellations coded on this route — about 1 in every 53 scheduled flights.
Share of cancellations
Of 469 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
231 cancellations, 49.3% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
152 cancellations, 32.4% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
86 cancellations, 18.3% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
469 coded cancellations were recorded on BOS → EWR; the section appears from 50.
When it goes wrong
July 2023 – July 2026
59 min late
against a median of 9 min early
BOS → EWR has an average that understates its risk: a typical arrival is 9 min early, but the worst tenth are 68 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 12,192 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at EWR after arriving from BOS.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 34% | Likely to miss |
| 45 min | 22% | High risk |
| 60 min | 16% | High risk |
| 90 min | 9.8% | Some risk |
| 120 min | 6.4% | Some risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 3.85% of the time and diverts 0.08% of the time, which a late arrival never shows up in.
Chance of missing is the share of 11,713 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 59 minutes late (90th-percentile gate arrival delay), over 12,192 operations.
Any other layover length: connection checker.
Best time to fly
BOS → EWR flights departing 5–9 AM arrived on time 91.3% of the time, against 63.9% for 6–9 PM departures, a gap of 27.4 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 92.1% on time from 2,057 flights
- 7 AM: 91.2% on time from 858 flights
- 8 AM: 89.3% on time from 795 flights
- 9 AM: 91.4% on time from 641 flights
- 10 AM: 87.5% on time from 943 flights
- 11 AM: 78.2% on time from 389 flights
- 12 PM: 67.2% on time from 841 flights
- 1 PM: 66.9% on time from 747 flights
- 2 PM: 76.5% on time from 318 flights
- 3 PM: 65.8% on time from 608 flights
- 4 PM: 69.2% on time from 673 flights
- 5 PM: 62.5% on time from 1,170 flights
- 6 PM: 66.5% on time from 820 flights
- 7 PM: 60.0% on time from 662 flights
- 8 PM: 65.0% on time from 433 flights
- 9 PM: 70.9% on time from 220 flights
- 10 PM to 11 PM: too few flights to score
Why BOS → EWR runs late
July 2023 – July 2026
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for BOS → EWR. Only delays of 15 minutes or more are attributed.
How this route holds up in bad weather
July 2023 – July 2026
Bad weather raises cancellations by a similar amount at both ends of BOS to EWR: 3.9 times the normal rate at BOS and 3.3 times at EWR. Cancelled in bad weather against normal hours: BOS 5.3% against 1.4%, EWR 6.9% against 2.1%. Flights that did leave BOS in bad weather arrived on time 65.1% of the time, against 79.7% in normal hours.
Bad weather and normal hours at the airports
Scheduled departures, July 2023 – July 2026| Departures from | BOS | EWR |
|---|---|---|
| Cancelled in bad weather | 5.3% | 6.9% |
| Cancelled in normal hours | 1.4% | 2.1% |
| Arrived on time, bad weather | 65.1% | 65.8% |
| Arrived on time, normal hours | 79.7% | 80.0% |
| Departures in bad weather | 60,840 | 51,613 |
Of the carriers on this route, United Airlines (4.6% cancelled against 5.4% for the other carriers at BOS) cancelled the fewest departures from BOS in bad weather and Spirit Airlines (7.8% cancelled against 4.4% for the other carriers at BOS) the most.
This route’s airlines in bad weather at BOS
All departures from BOS| Airline | Bad-weather departures | Cancelled | Other carriers |
|---|---|---|---|
| United Airlines | 5,328 | 4.6%below the others | 5.4% |
| Republic Airways | 12,581 | 8.1%above the others | 5.0% |
| Spirit Airlines | 2,112 | 7.8%above the others | 4.4% |
These are airport figures, not route figures: every scheduled departure from BOS and EWR, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from BOS on every route.
Weather source and limits. In full: BOS (airlines), EWR, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| United Airlines | 8,373 | 77.8% | 3.24% | -9 min | 10.2% |
| Republic Airways | 3,397 | 75.6% | 5.00% | -6 min | 9.7% |
| Spirit Airlines | 387 | 82.8% | 6.46% | -15 min | 7.8% |
United Airlines flew 68.9% of the 12,157 flights listed. Spirit Airlines cancelled 6.46% of its flights here against 3.24% for United Airlines.
Spirit Airlines arrived on time 7.2 percentage points more often than Republic Airways on this route.
Other ways to fly Boston to New York
Airport pairs in the same two city markets, as the DOT defines them.
BOS → LGA is the most reliable pairing for this journey at 81.1% on time, against 77.3% for BOS → EWR.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
UA1833 (6:00 AM) arrived on time 92.7% of the time, 34.0 points more often than YX5718 (6:15 PM) at 58.7%.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Thursday the least, a gap of 9.4 percentage points.
By month
- Jan: 86.2%
- Feb: 85.5%
- Mar: 83.9%
- Apr: 81.2%
- May: 73.4%
- Jun: 74.5%
- Jul: 64.5%
- Aug: 72.3%
- Sep: 74.5%
- Oct: 80.0%
- Nov: 79.5%
- Dec: 77.6%
July is historically the weakest month and January the strongest, a spread of 21.7 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 67.5% from 335 flights
- August 2023: 75.9% from 296 flights
- September 2023: 70.9% from 330 flights
- October 2023: 90.4% from 353 flights
- November 2023: 93.4% from 290 flights
- December 2023: 90.6% from 234 flights
- January 2024: 87.3% from 286 flights
- February 2024: 91.7% from 296 flights
- March 2024: 90.0% from 343 flights
- April 2024: 84.8% from 344 flights
- May 2024: 81.5% from 404 flights
- June 2024: 74.5% from 404 flights
- July 2024: 64.7% from 405 flights
- August 2024: 75.6% from 398 flights
- September 2024: 80.0% from 402 flights
- October 2024: 84.3% from 441 flights
- November 2024: 68.3% from 339 flights
- December 2024: 73.5% from 300 flights
- January 2025: 88.4% from 310 flights
- February 2025: 78.7% from 300 flights
- March 2025: 83.7% from 341 flights
- April 2025: 72.9% from 308 flights
- May 2025: 48.7% from 262 flights
- June 2025: 70.8% from 274 flights
- July 2025: 60.1% from 331 flights
- August 2025: 65.4% from 330 flights
- September 2025: 70.9% from 336 flights
- October 2025: 62.7% from 332 flights
- November 2025: 78.6% from 327 flights
- December 2025: 71.0% from 277 flights
- January 2026: 82.5% from 297 flights
- February 2026: 86.2% from 301 flights
- March 2026: 78.2% from 352 flights
- April 2026: 84.8% from 348 flights
- May 2026: 81.2% from 348 flights
- June 2026: 77.6% from 327 flights
- July 2026: 66.0% from 291 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 75.5% against 74.6% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 12,192 BOS → EWR flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed