Houston to Denver IAH → DEN
George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN)
The cheapest return found recently is $189 with Frontier Airlines, 14 Nov – 18 Nov, found 2 days ago. The cheapest one-way found recently is $88 with Frontier Airlines, 27 Oct, found 2 days ago.
Return
The cheapest return fare on each of 4 departure dates is usually $168 to $223.
Cheapest return found recently
$189
14 Nov – 18 Nov · Frontier Airlines
George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN)
Leaves 6:40 a.m. · Return leaves 6:31 p.m. · 14 h 32 min of travel, both ways together
out nonstop, back 1 stop
found 2 days ago
Cheapest nonstop return
$184
23 Oct – 25 Oct · Frontier Airlines
George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN)
Leaves 10:40 p.m. · Return leaves 9:12 p.m. · 5 h 6 min of travel, both ways together
out nonstop, back nonstop
found 3 days ago
Found recently, and the cheapest we hold
$189 14 Nov – 18 Novfound 2 days agoSee prices for these dates
$121 30 Oct – 1 Novfound 4 days agoSee prices for these dates
What have prices looked like?
Over 12 days, 7 Oct to 18 Oct, the cheapest return we saw each day was $118 to $120.
At $189, the cheapest return found recently is above that range.
12 days is a short history, so treat this range as an early guide.
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 Oct to 23 Dec, 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 4-night return fares leaving within 3 days of 14 Nov to compare.
Every date we hold
5 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Oct – 25 Oct | $184 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 30 Oct – 1 Nov | $121 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 14 Nov – 18 Nov | $189 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN) | out nonstop, back 1 stop | found 2 days ago | See prices for these dates |
| 23 Dec – 26 Dec | $324 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN) | out nonstop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
October 2026 is the cheapest month — from $121.
Airlines on the cheapest dates: Frontier Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $62 to $75.
Cheapest one-way found recently
$88
27 Oct · Frontier Airlines
George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN)
Leaves 9:43 p.m. · 2 h 39 min trip
nonstop
found 2 days ago
Cheapest nonstop one-way
$88
27 Oct · Frontier Airlines
George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN)
Leaves 9:43 p.m. · 2 h 39 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$88 27 Octfound 2 days agoOpen this trip
$61 29 Octfound 5 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $61 to $103.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 27 Oct to 30 Oct, 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?
Yes. Among one-way fares leaving within 3 days of 27 Oct, 30 Oct costs $62: $26 less than the cheapest found recently.
Frontier Airlines · George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN) · nonstop · found 4 days ago
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 27 Oct | $88 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN) | nonstop | found 2 days ago | Open this trip |
| 29 Oct | $61 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN) | nonstop | found 5 days ago | Open this trip |
| 30 Oct | $62 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Denver International Airport (DEN) | nonstop | found 4 days ago | Open this trip |
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Houston to Denver
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 14 Nov – 18 Nov in another cabin: Premium economy · Business · First
Today's prices for 27 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Houston to Denver?
Return
Fares 7 to 13 days before departure were typically 35% lower than 0 to 6 days before departure.
From the cheapest return each day between 7 Oct and 18 Oct (12 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 | $182 | $182 | +54% | 7 |
| 7–13 days | $118 | $118 | Cheapest seen | 8 |
| 90–179 days | $120 | $120 | +2% | 8 |
One-way
Fares 14 to 29 days before departure were typically 34% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 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 | +52% | 13 |
| 7–13 days | $95 | $61 | +46% | 21 |
| 14–29 days | $65 | $61 | Cheapest seen | 14 |
| 60–89 days | $103 | $103 | +59% | 8 |
| 90–179 days | $88 | $88 | +35% | 8 |
Live price for these dates
The cheapest return found recently is for 14 Nov – 18 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
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