Boston (BOS) to Newark (EWR): On-Time Performance
Data through May 2026
The biggest risk when flying BOS to EWR isn't a late arrival — it's not departing at all. 3.9% of scheduled flights on this route were cancelled, several times the typical US rate. When flights do go, 75% land on time, below the national average of 78%. Spirit Airlines has been the safer pick, arriving on time 83% of the time.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 21 min
- completed flights
- Cancelled
- 3.9%
- Flights/day
- 11
- last 12 months
- Duration
- 1h 29m
- scheduled
- Distance
- 200 mi
Best airline from BOS to EWR
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 83% | 15 min | 7.4% | 339 |
| United Airlines | 76% | 22 min | 3.0% | 5,442 |
| Republic Airways | 72% | 20 min | 5.5% | 2,282 |
Monthly on-time trend
Best time to fly from BOS to EWR
Aim for departures around 6 a.m. (92% on-time); avoid 7 p.m. departures (58%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 20 min |
| Tuesdaybest | 81% | 14 min |
| Wednesday | 77% | 19 min |
| Thursday | 69% | 27 min |
| Friday | 72% | 24 min |
| Saturday | 77% | 20 min |
| Sunday | 73% | 26 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft30%
- Airline operations16%
- National airspace system51%
- Weather3%
Frequently asked questions
- How often are flights from BOS to EWR delayed?
- 25% of BOS–EWR flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 21 minutes.
- Which airline is most reliable from BOS to EWR?
- Spirit Airlines has the best on-time record on this route at 83%, based on 339 flights. 3 airlines flew BOS–EWR frequently enough to compare in this period.
- What is the best time of day to fly from BOS to EWR?
- Departures around 6 a.m. have the best record (92% on-time), while departures around 7 p.m. have the worst (58%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BOS to EWR?
- The scheduled BOS–EWR flight time averages 1h 29m over 200 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are BOS to EWR flights cancelled?
- 3.9% of scheduled flights on this route were cancelled between 2024-06 and 2026-05 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from BOS to EWR?
- May 2025 was the roughest month in this dataset, with only 49% of arrivals on time. The best was January 2025 at 88%. If your dates are flexible, that 40-point gap is worth planning around.
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Based on 8,063 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.