Route on-time record
DFW to IAH: most on-time flights and the best time to fly
Dallas-Fort Worth (Dallas Fort Worth International Airport) to Houston (George Bush Intercontinental Airport). 5,774 nonstop flights in Jun 2025 to May 2026, 70% arrived within 15 minutes and 2.9% were cancelled. The most reliable flight number was United 2260 at 5:15 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
DFW → IAH
Dallas-Fort Worth to Houston: 5,774 nonstop flights a year
On time (12 months)
70%
Cancelled
2.9%
avg delay 25 min
Best time to leave
Before 9 AM
79% on time vs 58% after 9 PM
Most reliable airline
Envoy
76% chance on time
Lowest nonstop fare seen in the next two months: $161 (American 3023 on 2026-10-23). 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 2260
5:15 AM → 6:26 AM1h 12m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 96%
- Cancelled
- 2.2%
- Avg arrival delay
- 5 min
- Arrived on time 96% of the time (227 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 79% on time; After 9 PM: 58%).
- Departs outside DFW's trouble window (1 PM to 7 PM, when 53% of its 139 ground stops and delay programs started).
Strong track record · 227 flights
Find United 2260 fares Opens this date on Aviasales#2 · United 528
2:23 PM → 3:40 PM1h 17m nonstop
Local times, typical schedule. Last flown 2026-05-20.
81%
chance on time
- On time (history)
- 85%
- Cancelled
- 2.6%
- Avg arrival delay
- 19 min
- Arrived on time 85% of the time (186 flights, Jun 2025 to May 2026).
- Departs inside DFW's trouble window: 53% of its 139 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 · 186 flights
Find United 528 fares Opens this date on Aviasales#3 · United 2114
7:28 PM → 8:50 PM1h 22m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 414, 793; its record covers all of them.
80%
chance on time
- On time (history)
- 87%
- Cancelled
- 5.5%
- Avg arrival delay
- 14 min
- Arrived on time 87% of the time (121 flights, Jun 2025 to May 2026).
- Cancelled 5.5% of the time (7 of 128).
- Departs outside DFW's trouble window (1 PM to 7 PM, when 53% of its 139 ground stops and delay programs started).
Moderate track record · 121 flights
Find United 2114 fares Opens this date on Aviasales#4 · United 539
12:00 PM → 1:18 PM1h 18m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 83%
- Cancelled
- 2.2%
- Avg arrival delay
- 15 min
- Arrived on time 83% of the time (175 flights, Jun 2025 to May 2026).
- Departs outside DFW's trouble window (1 PM to 7 PM, when 53% of its 139 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.
Moderate track record · 175 flights
Find United 539 fares Opens this date on Aviasales#5 · United 1586
9:35 AM → 11:15 AM1h 21m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.8%
- Avg arrival delay
- 22 min
- Arrived on time 82% of the time (130 flights, Jun 2025 to May 2026).
- Departs outside DFW's trouble window (1 PM to 7 PM, when 53% of its 139 ground stops and delay programs started).
Moderate track record · 130 flights
Find United 1586 fares Opens this date on Aviasales#6 · United 399
3:30 PM → 4:57 PM1h 27m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as United 1350, 1808; its record covers all of them.
77%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 28 min
- Arrived on time 80% of the time (71 flights, Jun 2025 to May 2026).
- Never cancelled in 72 scheduled flights.
- Departs inside DFW's trouble window: 53% of its 139 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 · 71 flights
Find United 399 fares Opens this date on Aviasales#7 · Envoy 3390 · sold as American Eagle
7:01 AM → 8:20 AM1h 19m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as Envoy 4103; its record covers all of them.
77%
chance on time
- On time (history)
- 80%
- Cancelled
- 1.0%
- Avg arrival delay
- 12 min
- Arrived on time 80% of the time (99 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 79% on time; After 9 PM: 58%).
- Departs outside DFW's trouble window (1 PM to 7 PM, when 53% of its 139 ground stops and delay programs started).
Moderate track record · 99 flights
Find 7:01 AM flight fares Opens this date on Aviasales#8 · Envoy 3583 · sold as American Eagle
2:31 PM → 3:46 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 64%
- Cancelled
- 0.0%
- Avg arrival delay
- 22 min
- Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
- Departs inside DFW's trouble window: 53% of its 139 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.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 2:31 PM flight fares Opens this date on Aviasales#9 · Envoy 4113 · sold as American Eagle
11:57 AM → 1:15 PM1h 18m nonstop
Local times, typical schedule. Last flown 2026-05-20.
75%
chance on time
- On time (history)
- 80%
- Cancelled
- 1.7%
- Avg arrival delay
- 14 min
- Arrived on time 80% of the time (113 flights, Jun 2025 to May 2026).
- Departs outside DFW's trouble window (1 PM to 7 PM, when 53% of its 139 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.
Moderate track record · 113 flights
Find 11:57 AM flight fares Opens this date on Aviasales#10 · Envoy 3591 · sold as American Eagle
9:35 AM → 10:53 AM1h 18m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 45%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 45% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside DFW's trouble window (1 PM to 7 PM, when 53% of its 139 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 9:35 AM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Envoy Air (sold as American Eagle)76%
885 flights · 79% on time as flown · 3.1% cancel
- United Airlines74%
2,389 flights · 76% on time as flown · 2.2% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)70%
37 flights · 78% on time as flown · 2.9% cancel
- American Airlines58%
2,454 flights · 60% on time as flown · 3.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM79%
1,284 flights · avg delay 13 min
- 9 AM to noon77%
800 flights · avg delay 18 min
- Noon to 3 PM76%
1,098 flights · avg delay 21 min
- 3 to 6 PM59%
1,277 flights · avg delay 37 min
- 6 to 9 PM64%
847 flights · avg delay 33 min
- After 9 PM58%
468 flights · avg delay 34 min
Best day: Tuesday (76%). Worst: Sunday (68%).
Smarter routing
Nearby airports that run more on time
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 aircraft42%
- Airline (crew, maintenance, boarding)26%
- Air traffic control and airport volume25%
- Severe weather7%
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
DFW to IAH questions
- What time of day is best to fly DFW to IAH?
- Before 9 AM: 79% of flights arrived on time, against 58% 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 DFW to IAH?
- Envoy, with a season-adjusted 76% chance of operating and arriving on time over 885 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 DFW to IAH?
- May (61% on time); the best was February (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 DFW
- IAH to DFW (return)
- DFW to ORD 68%
- DFW to LGA 67%
- DFW to ATL 75%
- DFW to LAX 72%
- DFW to DEN 69%
- DFW to SEA 69%
- DFW to LAS 69%
- DFW to PHX 71%
- DFW to MCO 64%
- DFW to MIA 69%
- DFW to AUS 68%
- DFW to SAT 67%
Live status: FAA delays and ground stops