IAH to DFW flight delays & on-time performance
Nonstop flights from George Bush Intercontinental Airport to Dallas Fort Worth International Airport · 224 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAH or DFW right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Houston (IAH) to Dallas/Fort Worth (DFW) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.5% were cancelled, and 12% arrived an hour or more late.
- Envoy Air was the most punctual airline here (78% on time); American Airlines was the least (74%).
- Departures scheduled around 6am did best (90% on time); around 7pm did worst (56%).
- Wednesday was the most reliable day to fly (79% on time) and Sunday the least (70%).
- The largest source of delay minutes was late-arriving aircraft (44%).
Which airline is most on time from IAH to DFW?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 78% | 2.6% | 24 min | 9.8% | 772 |
| United Airlines | 76% | 1.5% | 18 min | 9.7% | 2,454 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 76% | 6.6% | 18 min | 8.5% | 76 |
| American Airlines | 74% | 3.4% | 32 min | 13.9% | 2,495 |
| PSA AirlinesRegional airline operating American Eagle flights. | 57% | 0.0% | 183 min | 28.6% | 7 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am88%336 flights
- 6am90%365 flights
- 7am82%611 flights
- 8am80%191 flights
- 9am81%429 flights
- 10am75%357 flights
- 11am79%223 flights
- 12pm80%420 flights
- 1pm66%64 flights
- 2pm73%645 flights
- 4pm69%651 flights
- 6pm63%689 flights
- 7pm56%225 flights
- 8pm72%294 flights
- 9pm80%211 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%3.1% cancelled
- Tuesday79%1.9% cancelled
- Wednesday79%0.6% cancelled
- Thursday76%1.5% cancelled
- Friday77%2.8% cancelled
- Saturday74%4.7% cancelled
- Sunday70%3.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft44%
- Airline (crew, maintenance, cleaning, fueling)25%
- Air traffic control & airport congestion20%
- Extreme weather11%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather77%
- Air traffic control & airport congestion14%
- Airline (crew, maintenance, cleaning, fueling)10%
- Security0%
IAH to DFW: common questions
- How often are IAH to DFW flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Houston to Dallas/Fort Worth cancelled?
- 2.5% of scheduled flights were cancelled (145 of 5,804).
- How long are typical delays?
- Across all flights the average arrival delay was 25 min (early arrivals count as zero). Flights that were late arrived 98 min behind schedule on average, and 11.5% of flights were an hour or more late.
- How long is taxi time at IAH?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DFW to IAH — 69% on time
More flights from Houston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: IAH → DFW, nonstop flights by US airlines that report to the DOT. How we calculate this.