United AirlinesUA
Flights UA700 varies daily · UA2044 12:03 daily · UA643 varies daily
live
Direct flights from Santa Ana (SNA) to Houston (IAH): 7 nonstop departures observed each week across 1 airline. The median arrival is 10 minutes early. No cancellations were recorded across the 4 tracked flights. The nonstop covers 2,163 km, an estimated 3 hours 16 minutes in the air. Measured by Pro Flight Search from live flight boards at Santa Ana and Houston. Updated 18 August 2026 at 23:41 UTC.
SNA
Santa Ana
smooth · +12
IAH
Houston
smooth · +0
2,163 km · ~3h 16m est.
Running clean · 1 airline · 7x weekly · nonstop
92 / 100
route health from live SNA and IAH delay boards
Median arrival delay is −10 min. 0 of 4 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival−10 minacross the last 4 operated legs
Flight time~3h 16mestimated from route distance
Weekly departures7x1 direct airline on the leg
Current nonstop fares
SNA → IAH · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
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 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at SNA: 36% odds of a 15+ minute delay and around +3 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Santa Ana to Houston route actually runs
Pro Flight Search tracks every published board update for nonstop SNA to IAH flights: 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. Fares link straight to the operating airline with no markups.
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 — Santa Ana (SNA) to Houston (IAH) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SNA-IAH
SNA to IAH questions
Is SNA–IAH running on time right now?
Smooth skies ahead. The departure side at SNA is the weaker end, route health score 92/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from SNA to IAH?
Great-circle distance is 2,163 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 183–215 min gate-to-gate on this route.
How often does SNA–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 SNA 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.
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