Flights operate between Denver (DEN) and Houston (IAH).
1 airline operates this route with 8-13 flights daily flights.
Average flight time is 2h 20m - 2h 42m.
Route distance is 866 miles (1393 km).
Route Distance
866 miles (1393 km)
Average Duration
2h 20m - 2h 42m
Airlines Operating This Route
United Airlines
Flight Frequency
Daily Flights
8-13 flights
Weekly Flights
85
Typical Departure Time Ranges
Earliest Departure
05:00
Latest Departure
20:37
Route Intelligence Dashboard
Overall Connectivity Score
70
GoodRoute Diversity
1
Direct Routes
United Airlines serves 1 destination from DEN
Weekly Frequency
70
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| DEN → Houston (IAH) (IAH) | 70/week | 2h 20m - 2h 42m | 866 km | Very Stable |
Flight Schedule & Filters
United Airlines flights from Denver (DEN) to Houston (IAH)
United Airlines operates scheduled nonstop flights between Denver (DEN) and Houston (IAH). United Airlines operates 8-13 flights daily flights on this route.• Flight Duration: 2h 20m - 2h 42m (average flight time)• Distance: 866 miles (1393 km) (air miles between airports)• Daily Flights: 8-13 flights (scheduled departures per day)
Denver (DEN)
US
Houston (IAH)
US
FLIGHT TIME
2h 20m - 2h 42m
FLIGHT DISTANCE
866 miles (1393 km)
2h 22m - 2h 32m
05:00
20:37
866 miles (1393 km)
February
1 (Show)
85
United Airlines Terminal Information & Contact
Departure Terminal - Denver (DEN)
Terminal: 1
Phone: 1-800-864-8331
Location: 1, Denver, US
Arrival Terminal - Houston (IAH)
Terminal: C
Phone: 1-800-864-8331
Location: C, Houston, US
United Airlines Flight Schedule from Denver (DEN) to Houston (IAH)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
UA320 |  United Airlines | 05:00 | 08:32:00 | Airbus A321neo |
UA1720 | United Airlines | 07:45 | 11:15:00 | Boeing 777 |
UA2676 | United Airlines | 09:35 | 13:07:00 | Boeing 757-300 Passenger |
UA1956 | United Airlines | 11:45 | 15:13:00 | Boeing 737-900 Passenger |
UA1829 | United Airlines | 13:25 | 16:53:00 | Airbus A321neo |
UA489 | United Airlines | 15:41 | 19:09:00 | Airbus A321neo |
UA248 | United Airlines | 16:55 | 20:23:00 | Boeing 737-900 Passenger |
UA726 | United Airlines | 17:25 | 20:53:00 | Airbus A321neo |
UA475 | United Airlines | 19:25 | 22:51:00 | Boeing 777 |
UA2419 | United Airlines | 20:37 | 23:59:00 | Boeing 737-900 Passenger |
United Airlines Monthly Flight Calendar
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United Airlines Terminal Information
Departure Terminal at Denver (DEN):
• Terminal : United Airlines operates from this terminal
Terminal 1:
• 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 Denver (DEN) to Houston (IAH)?
United Airlines operates 10 flights from Denver (DEN) to Houston (IAH).
What city does Houston (IAH) airport serve?
Houston (IAH) airport serves Houston, US.
How long is the United Airlines flight from Denver (DEN) to Houston (IAH)?
The flight duration is approximately 2h 20m - 2h 42m.
What is the distance from Denver (DEN) to Houston (IAH)?
The distance is 866 miles (1393 km).
What aircraft does United Airlines use on this route?
United Airlines uses Airbus A321neo, Boeing 777, Boeing 757-300 Passenger and 1 more aircraft type on this route.
Which other airlines operate on this route?
1 other airline operates on this route: Frontier Airlines.
What are the earliest and latest United Airlines flight departure times?
The earliest United Airlines flight departs at 05:00 and the latest departs at 20:37.
View all United Airlines flights to Denver (DEN) →
Popular United Airlines routes from Denver include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.