Find cheap airlines flights from Houston to Denver

You can choose from 3 airlines that fly from Houston to Denver, including Frontier Airlines, United Airlines, and American Airlines. Frontier Airlines has lowest fares on this route.
Frontier Airlines logo Frontier Airlines
United Airlines logo United Airlines
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from Houston to Denver according to previous 12 months data from Trip.com.

Book direct flights from Houston to Denver: One way flights from $45, round trip flights from $37. Find flight deals for the next 3 months below.

Displayed flight fares from Houston to Denver are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Houston to Denver

The distance between Houston and Denver is approximately 1,420.15 km. It takes around 2 hours 54 minutes on average to fly from Houston to Denver. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price$45
Cheapest round-trip ticket price$37
Off-season for travelOctober
Peak season for travelJuly
Flight distance1,420.15 km
Average flight time2 hours 54 minutes
Popular airlineFrontier Airlines
Flight statistics for the Houston–Denver route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Houston to Denver

Which month has the cheapest one-way flights from Houston to Denver?

The average price of one-way flights from Houston to Denver purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Houston to Denver is Mar, with an average price of $67; while the month with the highest flight price is usually Nov, with an average price of up to $239.

$239
$153
$67
0
    Cheapest
  • $77
    Feb
  • $67
    Mar
  • $110
    Apr
  • $178
    May
  • $208
    Jun
  • $169
    Jul
  • $123
    Aug
  • $141
    Sep
  • $150
    Oct
  • $239
    Nov
  • $122
    Dec
  • $91
    Jan

What's the cheapest day to fly from Houston to Denver?

Data is based on the average flight price for each day of the week from Houston to Denver on Trip.com over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Houston to Denver is Tue, with average prices lower than on other days. Avoid Sun, as prices are usually highest then.

$175
$134
$92
$51
  • $137
    Mon
  • $92
    Tue
  • $119
    Wed
  • $136
    Thu
  • $140
    Fri
  • $112
    Sat
  • $175
    Sun

Frequently Asked Questions

  • What are the cheapest flights from Houston to Denver (HOU-DEN)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as $45 on Cheapest nonstop routes (e.g. IAH to DEN on Thu, Apr 9), while Frontier Airlines offers Cheapest nonstop round-trips from $37 departing on Wed, Mar 4 and returning on Wed, Mar 4.
  • At the moment, you can catch a nonstop flight from Houston to Denver with the following airlines, including: Frontier Airlines United Airlines American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 2 hours 54 minutes to fly from Houston (HOU) to Denver (DEN).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Houston to Denver is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 91 flight per week flying from Houston to Denver. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/-/-/-/S -- UA2491 (09:46) United Airlines: S/M/T/-/-/-/- -- UA1210 (10:19) United Airlines: S/M/T/-/-/-/- -- UA1244 (08:30)
  • To find best deals on flights from Houston to Denver, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Apr 9, with one-way flights priced at just $45.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Denver travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Houston to Denver is October, when demand for travel is lower.
  • After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Houston to Denver on February 10, 2026 with Frontier Airlines, with prices starting at $50.
  • You can land at any one of the following hubs in Denver, with George Bush Intercontinental Airport to Denver International Airport (IAH-DEN) is by far the most common option on this route: Denver International Airport (DEN) Rocky Mountain Metropolitan Airport (BJC).
  • The time difference between Denver and Houston is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com airline insights on flights from Houston to Denver

Which airlines offer the cheapest nonstop flights from Houston to Denver?

Data is based on the average price of all nonstop flights from Houston to Denver on Trip.com in the past 12 months.

Based on Trip.com data from the past 12 months, Delta Air Lines offers the cheapest nonstop flights from Houston to Denver, with an average price of $106.

$60
$106
$153
$199
$245
Delta Air Lines
$106
Delta Air Lines
Frontier Airlines
$112
Frontier Airlines
United Airlines
$245
United Airlines

Which airlines operate the most flights from Houston to Denver?

Data is based on the number of flights from Houston to Denver operated by each airline on Trip.com in the past month.

Based on Trip.com data from the past month, United Airlines operates the most flights from Houston to Denver, with 91 flight per week.

0
18
55
91
United Airlines
91
United Airlines
Air Canada
76
Air Canada
Air New Zealand
76
Air New Zealand
Volaris
39
Volaris
Frontier Airlines
18
Frontier Airlines

How many flights are there each day from Houston to Denver?

Data is based on the number of flights from Houston to Denver for each day of the week on Trip.com over the last month.

Based on Trip.com data from the past month, the most flights from Houston to Denver depart on Saturday, and the fewest flights depart on Tuesday.

234
205
175
146
Highest
183
Mon
175
Tue
176
Wed
181
Thu
231
Fri
234
Sat
199
Sun