Route on-time record

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

Houston (George Bush Intercontinental Airport) to Newark (Newark Liberty International Airport). 3,764 nonstop flights in Jun 2025 to May 2026, 74% arrived within 15 minutes and 1.9% were cancelled. The most reliable flight number was United 1797 at 6:00 AM.

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

IAH → EWR

Houston to Newark: 3,764 nonstop flights a year

On time (12 months)

74%

Cancelled

1.9%

avg delay 20 min

Best time to leave

Before 9 AM

88% on time vs 59% 3 to 6 PM

Most reliable airline

Spirit

73% chance on time

Check IAH to EWR fares

Lowest nonstop fare seen in the next two months: $191 (United 1797 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 1797
6:00 AM → 10:33 AM3h 33m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
On time (history)
91%
Cancelled
0.7%
Avg arrival delay
5 min
- Arrived on time 91% of the time (278 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 59%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
Strong track record · 278 flights
Find United 1797 fares Opens this date on Aviasales
#2 · United 1886
7:20 AM → 1:00 PM3h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
On time (history)
89%
Cancelled
1.4%
Avg arrival delay
10 min
- Arrived on time 89% of the time (360 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 59%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
- Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 360 flights
Find United 1886 fares Opens this date on Aviasales
#3 · United 2402
9:40 AM → 2:17 PM3h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 1380; its record covers all of them.
78%
chance on time
On time (history)
83%
Cancelled
0.7%
Avg arrival delay
8 min
- Arrived on time 83% of the time (143 flights, Jun 2025 to May 2026).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
- Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 143 flights
Find United 2402 fares Opens this date on Aviasales
#4 · United 2371
12:14 PM → 5:00 PM3h 46m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 2018; its record covers all of them.
75%
chance on time
On time (history)
83%
Cancelled
0.0%
Avg arrival delay
12 min
- Arrived on time 83% of the time (64 flights, Jun 2025 to May 2026).
- Never cancelled in 64 scheduled flights.
- Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
- Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 64 flights
Find United 2371 fares Opens this date on Aviasales
#5 · United 1340
10:57 AM → 3:34 PM3h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
On time (history)
80%
Cancelled
9.1%
Avg arrival delay
9 min
- Arrived on time 80% of the time (10 flights, Jun 2025 to May 2026).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
- Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find United 1340 fares Opens this date on Aviasales
#6 · United 1444
8:20 PM → 12:57 AM3h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
72%
chance on time
On time (history)
73%
Cancelled
2.2%
Avg arrival delay
22 min
- Arrived on time 73% of the time (353 flights, Jun 2025 to May 2026).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
Strong track record · 353 flights
Find United 1444 fares Opens this date on Aviasales
#7 · United 1397
1:38 PM → 6:22 PM3h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
68%
chance on time
On time (history)
69%
Cancelled
1.3%
Avg arrival delay
26 min
- Arrived on time 69% of the time (311 flights, Jun 2025 to May 2026).
- Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
- Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 311 flights
Find United 1397 fares Opens this date on Aviasales
#8 · Spirit 1256
7:05 AM → 11:29 AM3h 24m nonstop
Local times, typical schedule. Last flown 2026-04-14.
68%
chance on time
On time (history)
71%
Cancelled
15.9%
Avg arrival delay
18 min
- Arrived on time 71% of the time (69 flights, Jun 2025 to May 2026).
- Cancelled 15.9% of the time (13 of 82).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 59%).
- Departs outside IAH's trouble window (noon to 6 PM, when 60% of its 92 ground stops and delay programs started).
Moderate track record · 69 flights
Find Spirit 1256 fares Opens this date on Aviasales
#9 · United 700
4:30 PM → 9:14 PM3h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
67%
chance on time
On time (history)
73%
Cancelled
2.2%
Avg arrival delay
19 min
- Arrived on time 73% of the time (176 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 59% on time; Before 9 AM: 88%).
- Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
Moderate track record · 176 flights
Find United 700 fares Opens this date on Aviasales
#10 · Spirit 2226
3:31 PM → 8:04 PM3h 33m nonstop
Local times, typical schedule. Last flown 2026-05-01.
66%
chance on time
On time (history)
64%
Cancelled
0.0%
Avg arrival delay
26 min
- Arrived on time 64% of the time (14 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 59% on time; Before 9 AM: 88%).
- Departs inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
- Short track record (14 flights), so its score leans on the airline's record at this hour.
Limited track record · 14 flights
Find Spirit 2226 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

Spirit Airlines73%
291 flights · 76% on time as flown · 4.5% cancel
United Airlines73%
3,473 flights · 74% on time as flown · 1.6% cancel

On time by departure time

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

Before 9 AM88%
953 flights · avg delay 8 min
9 AM to noon77%
765 flights · avg delay 15 min
Noon to 3 PM68%
974 flights · avg delay 27 min
3 to 6 PM59%
367 flights · avg delay 34 min
6 to 9 PM69%
705 flights · avg delay 24 min

Best day: Tuesday (81%). Worst: Thursday (72%).

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

Air traffic control and airport volume45%
Late-arriving aircraft23%
Airline (crew, maintenance, boarding)23%
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

IAH to EWR questions

What time of day is best to fly IAH to EWR?: Before 9 AM: 88% 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 IAH to EWR?: Spirit, with a season-adjusted 73% chance of operating and arriving on time over 291 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 IAH to EWR?: July (58% on time); the best was January (87%), 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 IAH

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