Houston to Ontario (IAH–ONT) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
IAH–ONT is served by 2 airlines with nonstop service. United Airlines and Frontier lead the route. The flight covers 1,331 miles in approximately 3h 10m. Beyond nonstop, 55 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 8 | 739 | 3h19-3h25 | Star Alliance | – | |
| F9 Frontier | 7 | 321 | 3h45 | – | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Ontario from Houston
| Metric | IAH→ONT | HOU→ONT | AUS→ONT |
|---|---|---|---|
| Distance from IAH | – | 24 mi | 140 mi |
| Nonstop airlines | 2 | 2 | 1 |
| Weekly flights | 17 | 9 | 6 |
| Flight time | 3h 10m | 3h 25m | 3h 5m |
| Departure OTP | 7% | – | – |
Travel Essentials
IAH: CDT · ONT: PDT
When it's 6:00 PM in Houston, it's 4:00 PM in Ontario.
IAH has no direct rail link to downtown Houston. The IAH Express bus runs from Houston Amtrak/Greyhound station via Park & Ride to Terminal C (60–90 min, $1.25 with METRO Q card). This is the only transit option; Houston's rail network does not reach the airport.Taxis from downtown Houston cost $50–70 and take 40–60 minutes. Ride-hails (Uber, Lyft) are typically $35–55. IAH sits 23 miles north of downtown on the North Freeway (I-45); traffic is heavy during morning and evening rush. Remote economy parking lots serve all terminals via shuttle.
IAH–ONT Quick Facts
Frequently Asked Questions
Flights from IAH to ONT
George Bush Intercontinental Airport (IAH) and Ontario International Airport (ONT) are connected by nonstop service from Frontier and United Airlines. With 17 weekly departures, this is a well served route.
IAH to ONT Flight Duration and Schedule
Nonstop flight time from IAH to ONT ranges from 3 hours 10 minutes to 3 hours 45 minutes. The route covers a distance of 1,331 miles (2,142 km). There are approximately 17 weekly flights outbound and 16 return, totaling 33 flights per week in both directions.
Connecting Options and Alternatives
55 one-stop connections are available, with the fastest taking approximately 4 hours via VNY. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Houston (HOU) and Austin (AUS).