IAH to SAN upgrade odds
Houston (George Bush Intcntl/Houston Airport) to San Diego (San Diego International Airport) on United. Run a free search and every flight on this route is ranked by your real odds of clearing the upgrade list for your status — a calibrated probability with honest error bars, never a bare number.
First search free, no account · then 3 more and a tracked trip with alerts · no card required
Who flies IAH to SAN nonstop
- United: about 5 nonstops a day, 9:30 AM to 7:56 PM, typically B739, B39M, shortest 1h 29m.
One-stop options
- American has no nonstop here; a search checks its hubs (PHX, DFW, LAX) for one-stop options ranked by odds.
- Alaska has no nonstop here; a search checks its hubs (LAX, SFO) for one-stop options ranked by odds.
- Delta has no nonstop here; a search checks its hubs (SLC) for one-stop options ranked by odds.
Schedule facts from the next 60 days of published timetables (3 days observed). Upgrade odds are personal and live, so they are never printed here — run the search.
What the search shows you
Every United departure on your date, side by side: schedule, aircraft, open premium seats against cabin size, fare, and the upgrade score — a probability with its range and a plain-English reason. The same route an hour earlier or later can differ by 30 points. Book the one that clears.
A 70% shot still misses 3 in 10. Every prediction is graded against the real gate outcome and the misses are published on the track record.