Houston to Ontario (IAH–ONT) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
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 23m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 8 | 739 | 3h24-3h25 | Star Alliance | – | |
| F9 Frontier Also: Y4 | 7 | A20N | 3h22 | – | Y4 |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Ontario from Houston
| Metric | IAH→ONT | HOU→ONT | AUS→ONT |
|---|---|---|---|
| Distance from IAH | – | 24 mi | 140 mi |
| Nonstop airlines | 2 | 4 | 2 |
| Weekly flights | 22 | 12 | 11 |
| Flight time | 3h 23m | 3h 10m | 2h 55m |
| Departure OTP | 70% | – | – |
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 United Airlines and Frontier. With 22 weekly departures, this is a well served route.
IAH to ONT Flight Duration and Schedule
Nonstop flight time from IAH to ONT is about 3 hours 23 minutes gate to gate. The route covers a distance of 1,331 miles (2,142 km). There are approximately 22 weekly flights outbound and 24 return, totaling 46 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Phoenix Sky Harbor, Harry Reid and Dallas Fort Worth. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Houston (HOU) and Austin (AUS).