TYS → IAHKnoxville/Maryville to Houston

live

Direct flights from Knoxville/Maryville (TYS) to Houston (IAH): 21 nonstop departures observed each week across 1 airline. 86% of the last 7 tracked flights arrived within 15 minutes of schedule. The median arrival is 10 minutes early. No cancellations were recorded across the 7 tracked flights. The nonstop covers 1,241 km, an estimated 2 hours 5 minutes in the air. Measured by Pro Flight Search from live flight boards at Knoxville/Maryville and Houston. Updated 15 November 2026 at 06:52 UTC.

Today, TYS → IAH

Sun 15 Nov · local times
  1. · UA4358 On schedule IAH 17:24scheduled
  2. · UA6134 On schedule IAH 13:35scheduled
  3. · UA6259 On schedule IAH 08:40scheduled

Checked IAH board 00:52

TYS Knoxville/Maryville tracking
IAH Houston disrupted · +126
1,241 km · ~2h 05m est.
dep bank 08:40–17:2421x weekly
Runs reliable · 1 airline · 21x weekly · nonstop
86% on time

of the last 7 tracked TYS → IAH flights arrived within 15 minutes

Median arrival delay is −10 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−10 minacross the last 7 arrivals
Flight time~2h 05mestimated from route distance
Weekly departures21x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
United AirlinesUA86% on time

Flights UA6259 08:40 daily · UA6134 13:35 daily · UA6219 17:22 Mo Tu We Th Fr Sa · UA4358 17:24 Su

History

operated legs · board outcomes
11-14UA6134arrived−10
11-14UA6219arrived−17
11-14UA6259arrived−6
11-13UA6134arrived−29
11-13UA6219arrived+255
11-13UA6259arrived−32
11-12UA6134arrived−10

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
TYSKnoxville/Maryville tracking Full TYS delay board →
IAHHouston +126 min disrupted 🌤 overcast · E 11 kt Full IAH delay board →

How the Knoxville/Maryville to Houston route actually runs

Pro Flight Search records official board updates for nonstop TYS to IAH flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: Knoxville/Maryville (TYS) to Houston (IAH) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/TYS-IAH
How we measure this →

TYS to IAH questions

Is TYS–IAH running on time right now?

High disruption likely. The arrival side at IAH is the weaker end, route health score 0/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from TYS to IAH?

Great-circle distance is 1,241 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 118–136 min gate-to-gate on this route.

How often does TYS–IAH fly?

United Airlines runs the route with about 21 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at TYS and arrival-side delay at IAH, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.