Flights operate between Ontario (ONT) and Houston (IAH).
1 airline operates this route with 1-3 flights daily flights.
Average flight time is 2h 57m - 3h 25m.
Average Duration
2h 57m - 3h 25m
Airlines Operating This Route
United Airlines
Flight Frequency
Daily Flights
1-3 flights
Weekly Flights
7
Typical Departure Time Ranges
Earliest Departure
06:05
Latest Departure
06:05
Route Intelligence Dashboard
Overall Connectivity Score
35
ModerateRoute Diversity
1
Direct Routes
United Airlines serves 1 destination from ONT
Weekly Frequency
7
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| ONT → Houston (IAH) (IAH) | 7/week | 2h 57m - 3h 25m | N/A | Seasonal |
Flight Schedule & Filters
United Airlines flights from Ontario (ONT) to Houston (IAH)
United Airlines operates scheduled nonstop flights between Ontario (ONT) and Houston (IAH). United Airlines operates 1-3 flights daily flights on this route.• Flight Duration: 2h 57m - 3h 25m (average flight time)• Daily Flights: 1-3 flights (scheduled departures per day)
Ontario (ONT)
US
Houston (IAH)
US
FLIGHT TIME
2h 57m - 3h 25m
3h 7m - 3h 7m
06:05
06:05
1 (Show)
7
United Airlines Terminal Information & Contact
Departure Terminal - Ontario (ONT)
Terminal: 2
Phone: 1-800-864-8331
Location: 2, Ontario, US
Arrival Terminal - Houston (IAH)
Terminal: C
Phone: 1-800-864-8331
Location: C, Houston, US
United Airlines Flight Schedule from Ontario (ONT) to Houston (IAH)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
UA1936 |  United Airlines | 06:05 | 11:12:00 | Airbus A319 |
United Airlines Monthly Flight Calendar
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United Airlines Terminal Information
Departure Terminal at Ontario (ONT):
• Terminal : United Airlines operates from this terminal
Terminal 2:
• United Airlines Terminal Phone: 1-800-864-8331
Arrival Terminal at Houston (IAH):
• Terminal : United Airlines operates from this terminal
Terminal C:
• United Airlines Terminal Phone: 1-800-864-8331
Weather & Climate at Houston (IAH)
21.7°C
Avg Temperature126mm
Avg Rainfall11.2km/h
Avg Wind Speed74%
Avg HumidityBest Months to Visit
Challenging Months
12-Month Weather Overview
Wind Speed by Month
Humidity by Month
Best Time to Book Flights to Houston (IAH)
Best Booking Window
Book 2-3 months in advance for best prices
Booking Tip
Avoid booking during extreme weather months for better deals
Peak Travel Months
Expect higher prices and more crowds during these months. Book early to secure better rates.
Recommended Months
These months offer the best balance of weather, prices, and availability.
Monthly Booking Recommendations
Flight Price Trends for Houston (IAH)
Cheapest Months to Fly
Book flights during these months for the best deals and lowest prices.
Most Expensive Months
Prices are typically highest during these months. Consider booking well in advance or choosing alternative dates.
Price Trend Analysis
Prices are typically lower during shoulder seasons
Monthly Price Trends
Best Months to Fly United Airlines to Houston (IAH)
Best Months
Optimal conditions for travel with favorable weather, prices, and availability.
Shoulder Season
Transition periods with moderate conditions. Good balance of price and experience.
Challenging Months
These months may have less favorable conditions. Plan accordingly and book early.
Seasonal Insight
Best travel months: 2025-09
Seasonal Travel Calendar
United Airlines Contact Information and Customer Services
United Airlines Address
233 S. Wacker Drive
Chicago, IL 60606, United States
Customer Service Phone
+1-800-864-8331Official Website
united.comFrequently Asked Questions
How many United Airlines flights operate from Ontario (ONT) to Houston (IAH)?
United Airlines operates 1 flight from Ontario (ONT) to Houston (IAH).
What city does Houston (IAH) airport serve?
Houston (IAH) airport serves Houston, US.
How long is the United Airlines flight from Ontario (ONT) to Houston (IAH)?
The flight duration is approximately 2h 57m - 3h 25m.
What aircraft does United Airlines use on this route?
United Airlines uses Airbus A319 on this route.
Which other airlines operate on this route?
1 other airline operates on this route: Frontier Airlines.
Which terminal does United Airlines use at Ontario (ONT)?
United Airlines flights from Ontario (ONT) depart from Terminal 2. Terminal 2 phone: 1-800-864-8331.
What is the United Airlines terminal phone number at Ontario (ONT)?
The United Airlines terminal phone number at Ontario (ONT) is 1-800-864-8331 (Terminal 2).
View all United Airlines flights to Ontario (ONT) →
Popular United Airlines routes from Ontario include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.