ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
EWR → IAD
Newark to Dulles: 1,474 nonstop flights a year
On time (12 months)
73%
Cancelled
2.4%
avg delay 22 min
Best time to leave
Before 9 AM
96% on time vs 53% noon to 3 PM
Most reliable airline
United
71% chance on time
Lowest nonstop fare seen in the next two months: $119 (United 1784 on 2026-10-18). 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 1366
6:10 AM → 7:28 AM1h 18m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 95%
- Cancelled
- 1.9%
- Avg arrival delay
- 4 min
- Arrived on time 95% of the time (353 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; Noon to 3 PM: 53%).
- 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 · 353 flights
Find United 1366 fares Opens this date on Aviasales#2 · United 1784
9:59 PM → 11:25 PM1h 26m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 82%
- Cancelled
- 4.1%
- Avg arrival delay
- 12 min
- Arrived on time 82% of the time (140 flights, Jun 2025 to May 2026).
- Cancelled 4.1% of the time (6 of 146).
- 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 · 140 flights
Find United 1784 fares Opens this date on Aviasales#3 · United 1413
10:05 AM → 11:28 AM1h 23m nonstop
Local times, typical schedule. Last flown 2026-05-31.
70%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 73% of the time (11 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).
- 56% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find United 1413 fares Opens this date on Aviasales#4 · United 1992
3:07 PM → 4:30 PM1h 23m nonstop
Local times, typical schedule. Last flown 2026-05-31.
63%
chance on time
- On time (history)
- 64%
- Cancelled
- 2.1%
- Avg arrival delay
- 27 min
- Arrived on time 64% of the time (330 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 IAD's trouble window: 75% of its 63 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 330 flights
Find United 1992 fares Opens this date on Aviasales#5 · United 2677
7:42 PM → 9:04 PM1h 26m nonstop
Local times, typical schedule. Last flown 2026-05-31.
60%
chance on time
- On time (history)
- 65%
- Cancelled
- 1.9%
- Avg arrival delay
- 25 min
- Arrived on time 65% of the time (104 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 · 104 flights
Find United 2677 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines71%
1,433 flights · 73% on time as flown · 2.3% cancel
- Republic Airways (sold as American Eagle, Delta Connection or United Express)70%
41 flights · 73% on time as flown · 4.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
364 flights · avg delay 4 min
- Noon to 3 PM53%
124 flights · avg delay 43 min
- 3 to 6 PM70%
263 flights · avg delay 18 min
- 6 to 9 PM61%
400 flights · avg delay 34 min
- After 9 PM70%
305 flights · avg delay 21 min
Best day: Tuesday (77%). Worst: Sunday (70%).
Smarter routing
Nearby airports that run more on time
ISP → BWI 83% chance on time
Long Island MacArthur Airport to Baltimore/Washington International Thurgood Marshall Airport · 1,201 flights a year · 101 mi from your airports · yours: 71%
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