CHA to IAH flight delays & on-time performance
Nonstop flights from Chattanooga Metropolitan Airport (Lovell Field) to George Bush Intercontinental Airport · 686 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at CHA or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chattanooga (CHA) to Houston (IAH) arrived on time 64% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.4% were cancelled, and 18% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 4pm did best (65% on time); around 5pm did worst (63%).
- Wednesday was the most reliable day to fly (72% on time) and Monday the least (51%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
Which airline is most on time from CHA 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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 64% | 0.4% | 39 min | 18.4% | 247 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am64%123 flights
- 4pm65%72 flights
- 5pm63%52 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday51%0.0% cancelled
- Tuesday69%0.0% cancelled
- Wednesday72%0.0% cancelled
- Thursday63%2.8% cancelled
- Friday69%0.0% cancelled
- Saturday56%0.0% cancelled
- Sunday68%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)47%
- Late-arriving aircraft28%
- Air traffic control & airport congestion14%
- Extreme weather11%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
CHA to IAH: common questions
- How often are CHA to IAH flights on time?
- 64% 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 Chattanooga to Houston cancelled?
- 0.4% of scheduled flights were cancelled (1 of 247).
- How long are typical delays?
- Across all flights the average arrival delay was 39 min (early arrivals count as zero). Flights that were late arrived 106 min behind schedule on average, and 18.4% of flights were an hour or more late.
- How long is taxi time at CHA?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to CHA — 67% on time
More flights from Chattanooga
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: CHA → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.