Route on-time record
EWR to PWM: most on-time flights and the best time to fly
Newark (Newark Liberty International Airport) to Portland (Portland International Jetport). 938 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 3.1% were cancelled. The most reliable flight number was Republic 3665 at 7:25 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
EWR → PWM
Newark to Portland: 938 nonstop flights a year
On time (12 months)
80%
Cancelled
3.1%
avg delay 15 min
Best time to leave
Before 9 AM
94% on time vs 71% after 9 PM
Most reliable airline
Republic
82% chance on time
Lowest nonstop fare seen in the next two months: $188 (United 3665 on 2026-10-22). 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 · Republic 3665 · sold as American Eagle, Delta Connection or United Express
7:25 AM → 8:49 AM1h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 96% of the time (28 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 94% on time; After 9 PM: 71%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 261 ground stops and delay programs started).
Limited track record · 28 flights
Find 7:25 AM flight fares Opens this date on Aviasales#2 · Republic 3685 · sold as American Eagle, Delta Connection or United Express
11:55 AM → 1:27 PM1h 32m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 92% of the time (84 flights, Jun 2025 to May 2026).
- Never cancelled in 84 scheduled flights.
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 261 ground stops and delay programs started).
Moderate track record · 84 flights
Find 11:55 AM flight fares Opens this date on Aviasales#3 · Republic 3627 · sold as American Eagle, Delta Connection or United Express
9:59 PM → 11:30 PM1h 31m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Republic 3496; its record covers all of them.
77%
chance on time
- On time (history)
- 86%
- Cancelled
- 3.4%
- Avg arrival delay
- 8 min
- Arrived on time 86% of the time (28 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 71% on time; Before 9 AM: 94%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 261 ground stops and delay programs started).
Limited track record · 28 flights
Find 9:59 PM flight fares Opens this date on Aviasales#4 · Republic 3599 · sold as American Eagle, Delta Connection or United Express
4:59 PM → 6:25 PM1h 26m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 76%
- Cancelled
- 5.5%
- Avg arrival delay
- 19 min
- Arrived on time 76% of the time (155 flights, Jun 2025 to May 2026).
- Cancelled 5.5% of the time (9 of 164).
- Departs inside EWR's trouble window: 65% of its 261 ground stops and delay programs started between 1 PM and 7 PM.
- 51% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 155 flights
Find 4:59 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Republic Airways (sold as American Eagle, Delta Connection or United Express)82%
752 flights · 86% on time as flown · 2.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM94%
140 flights · avg delay 3 min
- 9 AM to noon90%
107 flights · avg delay 6 min
- Noon to 3 PM83%
90 flights · avg delay 12 min
- 3 to 6 PM80%
273 flights · avg delay 15 min
- After 9 PM71%
324 flights · avg delay 23 min
Best day: Wednesday (86%). Worst: Monday (78%).
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 aircraft58%
- Airline (crew, maintenance, boarding)24%
- Air traffic control and airport volume18%
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 PWM questions
- What time of day is best to fly EWR to PWM?
- Before 9 AM: 94% of flights arrived on time, against 71% for departures after 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 EWR to PWM?
- Republic, with a season-adjusted 82% chance of operating and arriving on time over 752 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 PWM?
- April (64% on time); the best was September (88%), 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
- PWM to EWR (return)
- EWR to MCO 76%
- EWR to ATL 77%
- EWR to ORD 71%
- EWR to LAX 72%
- EWR to FLL 75%
- EWR to SFO 71%
- EWR to MIA 77%
- EWR to BOS 71%
- EWR to CLT 80%
- EWR to IAH 79%
- EWR to DTW 79%
- EWR to PBI 77%
Most on-time flights from EWR on every route →
Live status: FAA delays and ground stops