Fares on this route currently start from ₹7,476. Compare live IAH to DEN prices, non-stop and connecting flights, departure times and airline choices before booking. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
IAH → DENApprox. 1387.49 km04 Jun 2026Live inventory
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Showing 25
of 140
live flights
Frontier Airlines
F9-3205
22:05
06/04/2026
IAH
George Bush Intercontinental Houston Airport
1h 53m
Non-stop
23:58
06/04/2026
DEN
Denver International Airport
₹7,476
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-2396
12:27
06/04/2026
IAH
George Bush Intercontinental Houston Airport
8h 52m
1 Stop
⏱ CLT · 3h 14mCLT Airport
21:19
06/04/2026
DEN
Denver International Airport
₹10,198
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1703
12:06
06/04/2026
IAH
George Bush Intercontinental Houston Airport
7h 7m
1 Stop
⏱ PHX · 3h 8mPHX Airport
19:13
06/04/2026
DEN
Denver International Airport
₹10,692
per person
✓ Refundable🔥 Last 3 seats3 fare options
Frontier Airlines
F9-1703
12:06
06/04/2026
IAH
George Bush Intercontinental Houston Airport
9h 43m
1 Stop
⏱ PHX · 5h 42mPHX Airport
21:49
06/04/2026
DEN
Denver International Airport
₹11,245
per person
✓ Refundable🔥 Last 3 seats3 fare options
Frontier Airlines
F9-3229
06:30
06/04/2026
IAH
George Bush Intercontinental Houston Airport
1h 36m
Non-stop
08:06
06/04/2026
DEN
Denver International Airport
₹11,873
per person
✕ Non-refundable🔥 Last 3 seats3 fare options
Frontier Airlines
F9-1965
20:50
06/04/2026
IAH
George Bush Intercontinental Houston Airport
6h 35m
1 Stop
⏱ LAS · 2h 6mLAS Airport
03:25
06/05/2026
+1
DEN
Denver International Airport
₹12,074
per person
✕ Non-refundable🔥 Last 4 seats3 fare options
Frontier Airlines
F9-1404
06:00
06/04/2026
IAH
George Bush Intercontinental Houston Airport
8h 4m
1 Stop
⏱ ATL · 3h 11mATL Airport
14:04
06/04/2026
DEN
Denver International Airport
₹12,074
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-3131
05:30
06/04/2026
IAH
George Bush Intercontinental Houston Airport
8h 42m
1 Stop
⏱ ONT · 3h 42mONT Airport
14:12
06/04/2026
DEN
Denver International Airport
₹12,074
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1965
20:50
06/04/2026
IAH
George Bush Intercontinental Houston Airport
12h 48m
1 Stop
⏱ LAS · 8h 7mLAS Airport
09:38
06/05/2026
+1
DEN
Denver International Airport
₹12,584
per person
✕ Non-refundable🔥 Last 4 seats3 fare options
Frontier Airlines
F9-4978
19:28
06/04/2026
IAH
George Bush Intercontinental Houston Airport
12h 56m
1 Stop
⏱ MCO · 6h 59mMCO Airport
08:24
06/05/2026
+1
DEN
Denver International Airport
₹12,598
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1462
21:17
06/04/2026
IAH
George Bush Intercontinental Houston Airport
11h 40m
1 Stop
⏱ MIA · 5h 46mMIA Airport
08:57
06/05/2026
+1
DEN
Denver International Airport
₹12,599
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-3227
17:40
06/04/2026
IAH
George Bush Intercontinental Houston Airport
1h 49m
Non-stop
19:29
06/04/2026
DEN
Denver International Airport
₹13,283
per person
✕ Non-refundable3 fare options
Southwest Airlines
WN-1975
22:45
06/04/2026
HOU
George Bush Intercontinental Houston Airport
1h 30m
Non-stop
00:15
06/05/2026
+1
DEN
Denver International Airport
₹14,536
per person
✕ Non-refundable9 fare options
United Airlines
UA-1874
05:15
06/04/2026
IAH
George Bush Intercontinental Houston Airport
1h 32m
Non-stop
06:47
06/04/2026
DEN
Denver International Airport
₹15,453
per person
✕ Non-refundable14 fare options
United Airlines
UA-2643
06:30
06/04/2026
IAH
George Bush Intercontinental Houston Airport
1h 32m
Non-stop
08:02
06/04/2026
DEN
Denver International Airport
₹15,453
per person
✕ Non-refundable14 fare options
United Airlines
UA-1066
22:10
06/04/2026
IAH
George Bush Intercontinental Houston Airport
1h 47m
Non-stop
23:57
06/04/2026
DEN
Denver International Airport
₹15,453
per person
✕ Non-refundable14 fare options
Frontier Airlines
F9-1965
20:50
06/04/2026
IAH
George Bush Intercontinental Houston Airport
14h 43m
1 Stop
⏱ LAS · 10h 7mLAS Airport
11:33
06/05/2026
+1
DEN
Denver International Airport
₹15,844
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-4978
19:28
06/04/2026
IAH
George Bush Intercontinental Houston Airport
19h 44m
1 Stop
⏱ MCO · 13h 47mMCO Airport
15:12
06/05/2026
+1
DEN
Denver International Airport
₹15,844
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-1958
14:51
06/04/2026
IAH
George Bush Intercontinental Houston Airport
18h 21m
1 Stop
⏱ DTW · 13h 12mDTW Airport
09:12
06/05/2026
+1
DEN
Denver International Airport
₹15,844
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-4131
13:28
06/04/2026
IAH
George Bush Intercontinental Houston Airport
7h 59m
1 Stop
⏱ LAS · 3h 18mLAS Airport
21:27
06/04/2026
DEN
Denver International Airport
₹16,163
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-4131
13:28
06/04/2026
IAH
George Bush Intercontinental Houston Airport
13h 57m
1 Stop
⏱ LAS · 9h 30mLAS Airport
03:25
06/05/2026
+1
DEN
Denver International Airport
₹16,716
per person
✕ Non-refundable3 fare options
Frontier Airlines
F9-4131
13:28
06/04/2026
IAH
George Bush Intercontinental Houston Airport
10h 41m
1 Stop
⏱ LAS · 6h 0mLAS Airport
00:09
06/05/2026
+1
DEN
Denver International Airport
₹16,716
per person
✕ Non-refundable3 fare options
United Airlines
UA-1575
07:20
06/04/2026
IAH
George Bush Intercontinental Houston Airport
1h 35m
Non-stop
08:55
06/04/2026
DEN
Denver International Airport
₹17,083
per person
✕ Non-refundable14 fare options
United Airlines
UA-2339
20:22
06/04/2026
IAH
George Bush Intercontinental Houston Airport
1h 53m
Non-stop
22:15
06/04/2026
DEN
Denver International Airport
₹17,083
per person
✕ Non-refundable14 fare options
Frontier Airlines
F9-1755
16:07
06/04/2026
IAH
George Bush Intercontinental Houston Airport
8h 31m
1 Stop
⏱ LAX · 2h 58mLAX Airport
00:38
06/05/2026
+1
DEN
Denver International Airport
₹17,213
per person
✕ Non-refundable3 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 04 Jun 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.