Route on-time record

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

Newark (Newark Liberty International Airport) to Houston (George Bush Intercontinental Airport). 3,758 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 2.1% were cancelled. The most reliable flight number was United 2438 at 7:05 AM.

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

EWR → IAH

Newark to Houston: 3,758 nonstop flights a year

On time (12 months)

79%

Cancelled

2.1%

avg delay 17 min

Best time to leave

Before 9 AM

90% on time vs 69% 3 to 6 PM

Most reliable airline

United

78% chance on time

Check EWR to IAH 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 2438
7:05 AM → 9:50 AM3h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
On time (history)
93%
Cancelled
0.8%
Avg arrival delay
4 min
- Arrived on time 93% of the time (237 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 69%).
- 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 · 237 flights
Find United 2438 fares Opens this date on Aviasales
#2 · United 492
5:35 AM → 8:29 AM3h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
On time (history)
91%
Cancelled
0.9%
Avg arrival delay
7 min
- Arrived on time 91% of the time (324 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 69%).
- 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 · 324 flights
Find United 492 fares Opens this date on Aviasales
#3 · United 773
12:20 PM → 3:22 PM4h 02m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as United 672; its record covers all of them.
88%
chance on time
On time (history)
94%
Cancelled
0.0%
Avg arrival delay
4 min
- Arrived on time 94% of the time (52 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 IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
Limited track record · 52 flights
Find United 773 fares Opens this date on Aviasales
#4 · United 573
7:35 AM → 10:42 AM4h 07m nonstop
Local times, typical schedule. Last flown 2026-03-28.
87%
chance on time
On time (history)
91%
Cancelled
4.2%
Avg arrival delay
8 min
- Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 69%).
- 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 (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find United 573 fares Opens this date on Aviasales
#5 · United 332
7:50 AM → 10:55 AM4h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
On time (history)
87%
Cancelled
1.9%
Avg arrival delay
10 min
- Arrived on time 87% of the time (106 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 69%).
- 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 · 106 flights
Find United 332 fares Opens this date on Aviasales
#6 · United 2204
12:30 PM → 3:28 PM3h 58m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 595; its record covers all of them.
81%
chance on time
On time (history)
82%
Cancelled
2.9%
Avg arrival delay
18 min
- Arrived on time 82% of the time (34 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 IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
- Short track record (34 flights), so its score leans on the airline's record at this hour.
Limited track record · 34 flights
Find United 2204 fares Opens this date on Aviasales
#7 · United 2690
2:11 PM → 5:13 PM4h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
On time (history)
83%
Cancelled
0.0%
Avg arrival delay
10 min
- Arrived on time 83% of the time (88 flights, Jun 2025 to May 2026).
- Never cancelled in 88 scheduled flights.
- Departs inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
- Lands inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
Moderate track record · 88 flights
Find United 2690 fares Opens this date on Aviasales
#8 · United 2467
10:40 AM → 1:40 PM4h 00m nonstop
Local times, typical schedule. Last flown 2026-05-20.
80%
chance on time
On time (history)
86%
Cancelled
0.0%
Avg arrival delay
8 min
- Arrived on time 86% of the time (21 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 IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
- Short track record (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find United 2467 fares Opens this date on Aviasales
#9 · United 571
10:30 AM → 1:35 PM4h 05m nonstop
Local times, typical schedule. Last flown 2026-04-29.
79%
chance on time
On time (history)
81%
Cancelled
2.0%
Avg arrival delay
13 min
- Arrived on time 81% of the time (296 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 IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 PM.
Strong track record · 296 flights
Find United 571 fares Opens this date on Aviasales
#10 · United 556
10:53 AM → 1:38 PM3h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
On time (history)
82%
Cancelled
0.0%
Avg arrival delay
8 min
- Arrived on time 82% 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).
- Lands inside IAH's trouble window: 60% of its 92 ground stops and delay programs started between noon and 6 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 556 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

United Airlines78%
3,469 flights · 79% on time as flown · 1.7% cancel
Spirit Airlines67%
289 flights · 69% on time as flown · 5.5% cancel

On time by departure time

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

Before 9 AM90%
962 flights · avg delay 7 min
9 AM to noon78%
449 flights · avg delay 16 min
Noon to 3 PM81%
806 flights · avg delay 14 min
3 to 6 PM69%
753 flights · avg delay 27 min
6 to 9 PM72%
725 flights · avg delay 25 min

Best day: Tuesday (81%). Worst: Saturday (76%).

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 volume31%
Airline (crew, maintenance, boarding)27%
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 IAH questions

What time of day is best to fly EWR to IAH?: Before 9 AM: 90% of flights arrived on time, against 69% 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 IAH?: United, with a season-adjusted 78% chance of operating and arriving on time over 3,469 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 IAH?: July (58% on time); the best was November (85%), 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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