Route on-time record
EWR to LAS: most on-time flights and the best time to fly
Newark (Newark Liberty International Airport) to Las Vegas (Harry Reid International Airport). 3,001 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was United 1139 at 6:30 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
EWR → LAS
Newark to Las Vegas: 3,001 nonstop flights a year
On time (12 months)
80%
Cancelled
1.6%
avg delay 16 min
Best time to leave
Before 9 AM
89% on time vs 72% 3 to 6 PM
Most reliable airline
United
80% chance on time
Lowest nonstop fare seen in the next two months: $221 (United 2175 on 2026-11-08). 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 1139
6:30 AM → 8:54 AM5h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 354; its record covers all of them.
91%
chance on time
- On time (history)
- 94%
- Cancelled
- 1.9%
- Avg arrival delay
- 4 min
- Arrived on time 94% 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: 72%).
- 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 1139 fares Opens this date on Aviasales#2 · United 1631
8:31 AM → 11:20 AM5h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 92% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 88 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 89% on time; 3 to 6 PM: 72%).
- 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 · 87 flights
Find United 1631 fares Opens this date on Aviasales#3 · United 1864
11:55 AM → 2:45 PM5h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 92% of the time (64 flights, Jun 2025 to May 2026).
- Never cancelled in 64 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 LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
Moderate track record · 64 flights
Find United 1864 fares Opens this date on Aviasales#4 · United 663
5:20 PM → 8:15 PM5h 55m nonstop
Local times, typical schedule. Last flown 2026-03-28.
82%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 96% of the time (24 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 72% on time; Before 9 AM: 89%).
- Departs inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (24 flights), so its score leans on the airline's record at this hour.
Limited track record · 24 flights
Find United 663 fares Opens this date on Aviasales#5 · United 446
9:57 AM → 12:46 PM5h 51m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 81%
- Cancelled
- 1.5%
- Avg arrival delay
- 10 min
- Arrived on time 81% of the time (334 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 LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
Strong track record · 334 flights
Find United 446 fares Opens this date on Aviasales#6 · United 2175
7:23 PM → 10:15 PM5h 52m nonstop
Local times, typical schedule. Last flown 2026-05-20.
79%
chance on time
- On time (history)
- 82%
- Cancelled
- 2.8%
- Avg arrival delay
- 12 min
- Arrived on time 82% of the time (175 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 · 175 flights
Find United 2175 fares Opens this date on Aviasales#7 · United 1706
7:59 PM → 10:38 PM5h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 91% 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).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find United 1706 fares Opens this date on Aviasales#8 · JetBlue 957
7:55 AM → 10:39 AM5h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
- On time (history)
- 81%
- Cancelled
- 2.3%
- Avg arrival delay
- 11 min
- Arrived on time 81% of the time (130 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: 72%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
Moderate track record · 130 flights
Find JetBlue 957 fares Opens this date on Aviasales#9 · United 2050
11:13 AM → 2:05 PM5h 52m nonstop
Local times, typical schedule. Last flown 2026-03-28.
76%
chance on time
- On time (history)
- 76%
- Cancelled
- 2.4%
- Avg arrival delay
- 15 min
- Arrived on time 76% of the time (162 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 LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
Moderate track record · 162 flights
Find United 2050 fares Opens this date on Aviasales#10 · United 1238
4:59 PM → 7:32 PM5h 33m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 72% on time; Before 9 AM: 89%).
- Departs inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find United 1238 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines80%
2,465 flights · 81% on time as flown · 1.4% cancel
- Spirit Airlines76%
244 flights · 75% on time as flown · 1.9% cancel
- JetBlue72%
292 flights · 76% on time as flown · 2.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM89%
851 flights · avg delay 7 min
- 9 AM to noon82%
612 flights · avg delay 10 min
- Noon to 3 PM80%
457 flights · avg delay 15 min
- 3 to 6 PM72%
472 flights · avg delay 28 min
- 6 to 9 PM72%
604 flights · avg delay 26 min
Best day: Tuesday (81%). Worst: Friday (75%).
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 aircraft37%
- Air traffic control and airport volume30%
- Airline (crew, maintenance, boarding)26%
- Severe weather8%
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 LAS questions
- What time of day is best to fly EWR to LAS?
- Before 9 AM: 89% of flights arrived on time, against 72% 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 LAS?
- United, with a season-adjusted 80% chance of operating and arriving on time over 2,465 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 LAS?
- July (61% on time); the best was September (84%), 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
- LAS 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%
Live status: FAA delays and ground stops