Route on-time record

EWR to BOS: most on-time flights and the best time to fly

Newark (Newark Liberty International Airport) to Boston (Boston Logan International Airport). 3,854 nonstop flights in Jun 2025 to May 2026, 71% arrived within 15 minutes and 4.0% were cancelled. The most reliable flight number was United 1183 at 12:15 PM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

EWR → BOS

Newark to Boston: 3,854 nonstop flights a year

On time (12 months)

71%

Cancelled

4.0%

avg delay 23 min

Best time to leave

Before 9 AM

89% on time vs 59% 3 to 6 PM

Most reliable airline

United

68% chance on time

Check EWR to BOS fares

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 · United 1183
12:15 PM → 1:29 PM1h 14m nonstop
Local times, typical schedule. Last flown 2026-05-20.
86%
chance on time
On time (history)
96%
Cancelled
0.0%
Avg arrival delay
5 min
- Arrived on time 96% of the time (53 flights, Jun 2025 to May 2026).
- Never cancelled in 53 scheduled flights.
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Limited track record · 53 flights
Find United 1183 fares Opens this date on Aviasales
#2 · United 408
6:40 AM → 7:53 AM1h 13m nonstop
Local times, typical schedule. Last flown 2026-05-20.
85%
chance on time
On time (history)
89%
Cancelled
1.2%
Avg arrival delay
8 min
- Arrived on time 89% of the time (81 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; 3 to 6 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Moderate track record · 81 flights
Find United 408 fares Opens this date on Aviasales
#3 · Republic 5764 · sold as American Eagle, Delta Connection or United Express
9:30 AM → 9:52 AM1h 22m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
On time (history)
93%
Cancelled
3.2%
Avg arrival delay
4 min
- Arrived on time 93% of the time (149 flights, Jun 2025 to May 2026).
- Cancelled 3.2% of the time (5 of 154).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Moderate track record · 149 flights
Find 9:30 AM flight fares Opens this date on Aviasales
#4 · United 1110
8:37 AM → 9:53 AM1h 16m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
On time (history)
100%
Cancelled
0.0%
Avg arrival delay
0 min
- Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; 3 to 6 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find United 1110 fares Opens this date on Aviasales
#5 · United 1074
9:04 AM → 10:20 AM1h 16m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as United 503; its record covers all of them.
84%
chance on time
On time (history)
93%
Cancelled
2.7%
Avg arrival delay
5 min
- Arrived on time 93% of the time (72 flights, Jun 2025 to May 2026).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Moderate track record · 72 flights
Find United 1074 fares Opens this date on Aviasales
#6 · United 593
7:55 AM → 9:11 AM1h 16m nonstop
Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as United 1932; its record covers all of them.
82%
chance on time
On time (history)
85%
Cancelled
0.5%
Avg arrival delay
10 min
- Arrived on time 85% of the time (204 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; 3 to 6 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Strong track record · 204 flights
Find United 593 fares Opens this date on Aviasales
#7 · United 2603
11:43 AM → 12:56 PM1h 13m nonstop
Local times, typical schedule. Last flown 2026-03-28.
79%
chance on time
On time (history)
86%
Cancelled
3.3%
Avg arrival delay
8 min
- Arrived on time 86% of the time (59 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (2 of 61).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
Limited track record · 59 flights
Find United 2603 fares Opens this date on Aviasales
#8 · United 375
9:55 AM → 11:10 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
78%
Cancelled
5.6%
Avg arrival delay
13 min
- Arrived on time 78% of the time (204 flights, Jun 2025 to May 2026).
- Cancelled 5.6% of the time (12 of 216).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Strong track record · 204 flights
Find United 375 fares Opens this date on Aviasales
#9 · United 1669
11:55 AM → 1:12 PM1h 17m nonstop
Local times, typical schedule. Last flown 2026-05-30.
73%
chance on time
On time (history)
78%
Cancelled
0.0%
Avg arrival delay
6 min
- Arrived on time 78% of the time (9 flights, Jun 2025 to May 2026).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find United 1669 fares Opens this date on Aviasales
#10 · United 1354
1:10 PM → 2:26 PM1h 16m nonstop
Local times, typical schedule. Last flown 2026-04-29.
71%
chance on time
On time (history)
87%
Cancelled
0.0%
Avg arrival delay
4 min
- Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
- Departs inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
- Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find United 1354 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

United Airlines68%
2,672 flights · 71% on time as flown · 3.2% cancel
Republic Airways (sold as American Eagle, Delta Connection or United Express)68%
1,182 flights · 72% on time as flown · 5.9% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

Before 9 AM89%
809 flights · avg delay 6 min
9 AM to noon83%
547 flights · avg delay 10 min
Noon to 3 PM75%
564 flights · avg delay 19 min
3 to 6 PM59%
1,005 flights · avg delay 35 min
6 to 9 PM59%
715 flights · avg delay 35 min
After 9 PM60%
214 flights · avg delay 34 min

Best day: Saturday (78%). Worst: Friday (70%).

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 aircraft40%
Air traffic control and airport volume36%
Airline (crew, maintenance, boarding)19%
Severe weather5%

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

EWR to BOS questions

What time of day is best to fly EWR to BOS?: Before 9 AM: 89% of flights arrived on time, against 59% for departures 3 to 6 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 EWR to BOS?: United, with a season-adjusted 68% chance of operating and arriving on time over 2,672 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 EWR to BOS?: July (63% on time); the best was January (83%), 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 EWR

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