TPA to IAH flight delays & on-time performance
Nonstop flights from Tampa International Airport to George Bush Intercontinental Airport · 787 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at TPA or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Tampa (TPA) to Houston (IAH) arrived on time 85% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 6% arrived an hour or more late.
- United Airlines was the most punctual airline here (87% on time); Frontier Airlines was the least (73%).
- Departures scheduled around 7am did best (94% on time); around 5pm did worst (74%).
- Wednesday was the most reliable day to fly (90% on time) and Sunday the least (81%).
- The largest source of delay minutes was air traffic control & airport congestion (35%).
Which airline is most on time from TPA to IAH?
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 |
|---|---|---|---|---|---|
| United Airlines | 87% | 0.3% | 10 min | 5.0% | 1,348 |
| Spirit Airlines | 73% | 1.7% | 29 min | 10.3% | 118 |
| Frontier Airlines | 73% | 1.7% | 29 min | 7.9% | 116 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am89%27 flights
- 7am94%342 flights
- 8am88%17 flights
- 9am89%281 flights
- 10am59%36 flights
- 11am91%370 flights
- 2pm88%52 flights
- 3pm74%19 flights
- 4pm69%16 flights
- 5pm74%368 flights
- 6pm63%20 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday85%0.4% cancelled
- Tuesday89%1.0% cancelled
- Wednesday90%0.5% cancelled
- Thursday86%1.3% cancelled
- Friday82%0.0% cancelled
- Saturday88%0.0% cancelled
- Sunday81%0.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion35%
- Airline (crew, maintenance, cleaning, fueling)32%
- Late-arriving aircraft29%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather50%
- Air traffic control & airport congestion38%
- Airline (crew, maintenance, cleaning, fueling)13%
- Security0%
TPA to IAH: common questions
- How often are TPA to IAH flights on time?
- 85% 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 Tampa to Houston cancelled?
- 0.5% of scheduled flights were cancelled (8 of 1,582).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 83 min behind schedule on average, and 5.6% of flights were an hour or more late.
- How long is taxi time at TPA?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to TPA — 82% on time
More flights from Tampa
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: TPA → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.