Cheap flights from Denver to Houston from $160 DEN → IAH
Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH)
The cheapest return found recently is $317 with Frontier Airlines, 23 Nov – 26 Nov, found yesterday. The cheapest one-way found recently is $160 with Frontier Airlines, 29 Nov, found 4 days ago.
- Cheapest one-way found recently
- $160, Frontier Airlines, found 4 days ago
- Cheapest return found recently
- $317, 23 Nov to 26 Nov
- Usual return price
- $217 to $320
- Cheapest month to fly
- February 2027, return fares from $185 found in the last 7 days
- Airlines with nonstop flights
- Frontier Airlines
- Shortest nonstop flight found
- 2 h 23 min
Return
The cheapest return fare on each of 4 departure dates is usually $217 to $320.
Cheapest return found recently
$317
23 Nov – 26 Nov · Frontier Airlines
Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH)
Leaves 8:59 p.m. · Return leaves 6:11 a.m. · 5 h 3 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Cheapest nonstop return
$317
23 Nov – 26 Nov · Frontier Airlines
Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH)
Leaves 8:59 p.m. · Return leaves 6:11 a.m. · 5 h 3 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Found recently, and the cheapest we hold
$317 23 Nov – 26 Novfound yesterdaySee prices for these dates
$185 1 Feb 2027 – 3 Feb 2027found 6 days agoSee prices for these dates
What have prices looked like?
Over 47 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $104 to $358.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 23 Nov to 7 Apr 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 3-night return fares leaving within 3 days of 23 Nov to compare.
Every date we hold
6 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Nov – 26 Nov | $305 | Frontier Airlines | Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 6 Dec – 12 Dec | $227 | Frontier Airlines | Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 1 Feb 2027 – 3 Feb 2027 | $185 | Frontier Airlines | Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 1 stop | found 6 days ago | See prices for these dates |
| 7 Apr 2027 – 9 Apr 2027 | $366 | American Airlines | Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
February 2027 is the cheapest month — from $185.
Airlines on the cheapest dates: Frontier Airlines, American Airlines.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$160
29 Nov · Frontier Airlines
Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH)
Leaves 8:59 p.m. · 2 h 23 min trip
nonstop
found 4 days ago
Cheapest nonstop one-way
$160
29 Nov · Frontier Airlines
Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH)
Leaves 8:59 p.m. · 2 h 23 min trip
nonstop
found 4 days ago
Found recently, and the cheapest we hold
$160 29 Novfound 4 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 36 days, 2 Oct to 12 Nov, the cheapest one-way we saw each day was $58 to $160.
At $160, the cheapest one-way found recently is at the high end of that range.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 29 Nov to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 29 Nov | $160 | Frontier Airlines | Denver International Airport (DEN) → George Bush Intercontinental Airport (IAH) | nonstop | found 4 days ago | Open this trip |
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Denver to Houston
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 23 Nov – 26 Nov in another cabin: Premium economy · Business · First
Today's prices for 29 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Denver to Houston?
Return
Fares 30 to 59 days before departure were typically 50% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (47 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $348 | $252 | +99% | 21 |
| 7–13 days | $273 | $134 | +56% | 16 |
| 14–29 days | $190 | $104 | +9% | 21 |
| 30–59 days | $175 | $144 | Cheapest seen | 21 |
| 60–89 days | $194 | $144 | +11% | 7 |
One-way
Fares 7 to 13 days before departure were typically 38% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 2 Oct and 12 Nov (36 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $99 | $95 | +61% | 13 |
| 7–13 days | $62 | $58 | Cheapest seen | 14 |
| 14–29 days | $86 | $58 | +40% | 18 |
| 30–59 days | $116 | $75 | +89% | 14 |
| 90–179 days | $126 | $126 | +105% | 8 |
Live price for these dates
The cheapest return found recently is for 23 Nov – 26 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Denver to Houston?
The cheapest return found recently is $317 with Frontier Airlines, 23 Nov to 26 Nov, found yesterday. The cheapest return we hold, of any age, is $185 with Frontier Airlines, 1 Feb 2027 to 3 Feb 2027, found 6 days ago. The cheapest return fare on each of 4 departure dates is usually $217 to $320.
How much is a one-way flight from Denver to Houston?
The cheapest one-way found recently is $160 with Frontier Airlines, 29 Nov, found 4 days ago.
What is the cheapest month to fly from Denver to Houston?
February 2027 is the cheapest month for a return, from $185, 1 Feb 2027 to 3 Feb 2027, found 6 days ago.
How far ahead should I book a flight from Denver to Houston?
In 47 days of prices between 24 Sept and 12 Nov, return fares 30 to 59 days before departure were typically 50% lower than 0 to 6 days before departure. In 36 days of prices between 2 Oct and 12 Nov, one-way fares 7 to 13 days before departure were typically 38% lower than 0 to 6 days before departure.
Is there a direct flight from Denver to Houston?
Yes, the cheapest nonstop return found recently is $317 with Frontier Airlines, 23 Nov to 26 Nov, found yesterday. The cheapest nonstop one-way found recently is $160 with Frontier Airlines, 29 Nov, found 4 days ago.
How long is the flight from Denver to Houston?
The cheapest nonstop one-way found recently, with Frontier Airlines on 29 Nov, takes 2 h 23 min from Denver International Airport (DEN) to George Bush Intercontinental Airport (IAH).
Which airlines have the cheapest flights from Denver to Houston?
Between 23 Nov and 7 Apr 2027, Frontier Airlines has the cheapest return on 3 of the 4 departure dates we hold, and American Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work