Ontario (ONT) to Houston (HOU) flights
One airline flies nonstop from Ontario (ONT) to Houston (HOU): Southwest Airlines. The two airports are 1,342 miles (2,160 km) apart. There are also 13 ways to fly it with one stop, through Phoenix, Austin and Las Vegas and more.
Airlines flying nonstop from ONT to HOU
- Southwest AirlinesNot in an allianceWho books it
ONT to HOU with one stop
13 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Phoenix (PHX)Southwest Airlines the whole way
- Via Austin (AUS)Southwest Airlines the whole way
- Via Las Vegas (LAS)Southwest Airlines the whole way
- Via Dallas (DFW)American Airlines the whole way
- Via Dallas (DAL)Southwest Airlines the whole way
- Via Denver (DEN)Southwest Airlines the whole way
- Via Salt Lake City (SLC)Delta Air Lines, then Southwest Airlines
- Via San Jose (SJC)Southwest Airlines the whole way
- Via Oakland (OAK)Southwest Airlines the whole way
- Via Sacramento (SMF)Southwest Airlines the whole way
- Via Nashville (BNA)Southwest Airlines the whole way
- Via Atlanta (ATL)Delta Air Lines the whole way
- Via Chicago (MDW)Southwest Airlines the whole way
ONT to HOU: common questions
Which airlines fly nonstop from ONT to HOU?
Southwest Airlines flies nonstop from Ontario (ONT) to Houston (HOU).
How far is Ontario from Houston by plane?
Ontario (ONT) and Houston (HOU) are 1,342 miles (2,160 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does ONT to HOU cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for ONT to HOU with taxes and fees.
Where can I connect between Ontario and Houston?
The most direct connections are through Phoenix (PHX), Austin (AUS), Las Vegas (LAS), Dallas (DFW) and Dallas (DAL). On 12 of them the same airline flies both flights, for example Southwest Airlines through Phoenix.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.