Compare live prices for IAH to DEN. Use the search panel
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IAH → DENApprox. 1387.49 km11 May 2026Live inventory
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Showing 25
of 124
live flights
Frontier Airlines
F9-3229
06:30
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 36m
Non-stop
08:06
05/11/2026
DEN
Denver International Airport
₹4,989
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-3205
22:05
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 53m
Non-stop
23:58
05/11/2026
DEN
Denver International Airport
₹4,989
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-3227
14:40
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 51m
Non-stop
16:31
05/11/2026
DEN
Denver International Airport
₹4,989
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1965
21:05
05/11/2026
IAH
George Bush Intercontinental Houston Airport
6h 20m
1 Stop
⏱ LAS · 1h 51mLAS Airport
03:25
05/12/2026
+1
DEN
Denver International Airport
₹7,061
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-3131
06:00
05/11/2026
IAH
George Bush Intercontinental Houston Airport
8h 12m
1 Stop
⏱ ONT · 3h 15mONT Airport
14:12
05/11/2026
DEN
Denver International Airport
₹10,889
per person
✕ Non-refundable🔥 Last 3 seats3 fare options
Frontier Airlines
F9-1965
21:05
05/11/2026
IAH
George Bush Intercontinental Houston Airport
12h 33m
1 Stop
⏱ LAS · 7h 52mLAS Airport
09:38
05/12/2026
+1
DEN
Denver International Airport
₹11,396
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1958
14:51
05/11/2026
IAH
George Bush Intercontinental Houston Airport
18h 21m
1 Stop
⏱ DTW · 13h 12mDTW Airport
09:12
05/12/2026
+1
DEN
Denver International Airport
₹11,396
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1965
21:05
05/11/2026
IAH
George Bush Intercontinental Houston Airport
20h 59m
1 Stop
⏱ LAS · 16h 11mLAS Airport
18:04
05/12/2026
+1
DEN
Denver International Airport
₹11,396
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1882
12:45
05/11/2026
IAH
George Bush Intercontinental Houston Airport
10h 59m
1 Stop
⏱ ORD · 5h 54mORD Airport
23:44
05/11/2026
DEN
Denver International Airport
₹11,396
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-3131
06:00
05/11/2026
IAH
George Bush Intercontinental Houston Airport
27h 22m
1 Stop
⏱ ONT · 22h 25mONT Airport
09:22
05/12/2026
+1
DEN
Denver International Airport
₹11,396
per person
✕ Non-refundable
Frontier Airlines
F9-1742
09:45
05/11/2026
IAH
George Bush Intercontinental Houston Airport
29h 43m
1 Stop
⏱ RDU · 23h 46mRDU Airport
15:28
05/12/2026
+1
DEN
Denver International Airport
₹11,396
per person
✕ Non-refundable
Frontier Airlines
F9-1703
12:06
05/11/2026
IAH
George Bush Intercontinental Houston Airport
7h 7m
1 Stop
⏱ PHX · 3h 8mPHX Airport
19:13
05/11/2026
DEN
Denver International Airport
₹13,113
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-2030
19:44
05/11/2026
IAH
George Bush Intercontinental Houston Airport
12h 40m
1 Stop
⏱ MCO · 6h 43mMCO Airport
08:24
05/12/2026
+1
DEN
Denver International Airport
₹13,634
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1418
13:29
05/11/2026
IAH
George Bush Intercontinental Houston Airport
18h 55m
1 Stop
⏱ MCO · 12h 59mMCO Airport
08:24
05/12/2026
+1
DEN
Denver International Airport
₹13,634
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1703
12:06
05/11/2026
IAH
George Bush Intercontinental Houston Airport
9h 43m
1 Stop
⏱ PHX · 5h 42mPHX Airport
21:49
05/11/2026
DEN
Denver International Airport
₹13,634
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-4028
10:51
05/11/2026
IAH
George Bush Intercontinental Houston Airport
12h 13m
1 Stop
⏱ PHL · 5h 19mPHL Airport
23:04
05/11/2026
DEN
Denver International Airport
₹13,634
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-4131
13:28
05/11/2026
IAH
George Bush Intercontinental Houston Airport
10h 41m
1 Stop
⏱ LAS · 6h 0mLAS Airport
00:09
05/12/2026
+1
DEN
Denver International Airport
₹13,634
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-2030
19:44
05/11/2026
IAH
George Bush Intercontinental Houston Airport
27h 27m
1 Stop
⏱ MCO · 21h 16mMCO Airport
23:11
05/12/2026
+1
DEN
Denver International Airport
₹13,634
per person
✕ Non-refundable
Frontier Airlines
F9-4131
13:28
05/11/2026
IAH
George Bush Intercontinental Houston Airport
13h 57m
1 Stop
⏱ LAS · 9h 30mLAS Airport
03:25
05/12/2026
+1
DEN
Denver International Airport
₹13,882
per person
✕ Non-refundable2 fare options
Frontier Airlines
F9-4131
13:28
05/11/2026
IAH
George Bush Intercontinental Houston Airport
20h 10m
1 Stop
⏱ LAS · 15h 31mLAS Airport
09:38
05/12/2026
+1
DEN
Denver International Airport
₹13,882
per person
✕ Non-refundable2 fare options
United Airlines
UA-2339
20:30
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 45m
Non-stop
22:15
05/11/2026
DEN
Denver International Airport
₹14,092
per person
✕ Non-refundable10 fare options
United Airlines
UA-1066
22:12
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 46m
Non-stop
23:58
05/11/2026
DEN
Denver International Airport
₹14,092
per person
✕ Non-refundable10 fare options
United Airlines
UA-1654
18:23
05/11/2026
IAH
George Bush Intercontinental Houston Airport
1h 53m
Non-stop
20:16
05/11/2026
DEN
Denver International Airport
₹14,092
per person
✕ Non-refundable10 fare options
American Airlines
AA-2551
05:00
05/11/2026
IAH
George Bush Intercontinental Houston Airport
3h 26m
1 Stop
⏱ DFW · 0h 58mDFW Airport
08:26
05/11/2026
DEN
Denver International Airport
₹14,275
per person
✕ Non-refundable26 fare options
American Airlines
AA-2142
18:09
05/11/2026
IAH
George Bush Intercontinental Houston Airport
3h 50m
1 Stop
⏱ DFW · 1h 23mDFW Airport
21:59
05/11/2026
DEN
Denver International Airport
₹14,275
per person
✕ Non-refundable26 fare options
😕 No flights match your filters.
Houston (IAH)
📍 George Bush Intercontinental Houston Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 29.984399795532227
📐 Longitude: -95.34140014648438
Denver (DEN)
📍 Denver International Airport
🌍 United States
🕐 GMT -7
📐 Latitude: 39.861698150635
📐 Longitude: -104.672996521
✈ Distance: Houston, TX,USA to Denver,USA — 1387.49 km
📅 Results on this page are loaded for 11 May 2026. Click View all flights for the complete live search.
Houston to Denver — what to expect when booking
The IAH–DEN route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Houston, TX,USA and Denver,USA is approximately
1387.49 km.
Before you book
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❓ Frequently asked questions — Houston to Denver flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Houston, TX,USA (IAH) and Denver,USA (DEN) is approximately 1387.49 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.