Home / Routes / KIAH → KDEN5,651 scheduled
IAH DEN2h 29m

The route from George Bush Intercontinental Houston Airport (KIAH) in Houston to Denver International Airport (KDEN) in Denver. SkyMeter tracks roughly 5,651 scheduled flights on this route across 19 carriers. The most active operator is UAL (UAL). Average block time is 2h 28m. Departures average 34 minutes off schedule, with 55% running more than 15 minutes late. The most common aircraft on this route is the AIRBUS Airbus A321 Neo.

Scheduled
5,651
last 473 days
ADS-B observed
1,338
Airlines
19
Avg dep delay
34m
Late >15 min
54.9%
Cancel rate
0.41%

Airlines on this route

12 carriers · scheduled

United Airlines
UAL · UA · 4,524 flights · avg 34m delay · 57.3% late
18 cancelled
Frontier Airlines
FFT · F9 · 902 flights · avg 31m delay · 46.3% late
4 cancelled
Air Transport International
ATN · 8C · 155 flights · avg 25m delay · 55.5% late
Concesionaria Vuela Compania De Aviacion S.a. De C.v
VOI · Y4 · 52 flights · avg 10m delay · 0.0% late
1 cancelled
Sky West Aviation
SKW · OO · 9 flights · avg 88m delay · 44.4% late
Atlas Air
GTI · 5Y · 3 flights · avg 57m delay · 100.0% late
Netjets Aviation
EJA · 1I · 1 flights · avg 6m delay · 0.0% late
Baker Aviation
KOW · 1 flights · avg 42m delay · 100.0% late
Southwest Airlines Co
SWA · WN · 1 flights · avg 12m delay · 0.0% late
Delta Air Lines
DAL · DL · 1 flights · avg —m delay · 0.0% late
Flexjet
LXJ · LXJ · 1 flights · avg 30m delay · 100.0% late
Gridiron Air
RZN · GI · 1 flights · avg 10m delay · 0.0% late

Recent observed flights

From ADS-B trace data

UAL2767N14528A21N
2026-08-16 20:23  →  2026-08-16 23:02  ·  2h 38m
Replay
UAL2168N14524A21N
2026-08-16 17:44  →  2026-08-16 19:35  ·  1h 51m
Replay
ATN3340N449AZB763
2026-08-16 16:39  →  2026-08-16 18:37  ·  1h 58m
Replay
UAL2787N24542A21N
2026-08-16 15:34  →  2026-08-16 17:33  ·  1h 58m
Replay
UAL1906N14534A21N
2026-08-16 13:37  →  2026-08-16 15:34  ·  1h 57m
Replay
UAL1575N14528A21N
2026-08-16 12:33  →  2026-08-16 14:29  ·  1h 56m
Replay
FFT3229N358FRA20N
2026-08-16 11:32  →  2026-08-16 13:31  ·  1h 58m
Replay
UAL1874N14521A21N
2026-08-16 10:19  →  2026-08-16 12:19  ·  2h 0m
Replay
UAL1654N75861B753
2026-08-16 01:22  →  2026-08-16 03:52  ·  2h 30m
Replay
FFT3227N652FRA21N
2026-08-16 00:55  →  2026-08-16 03:36  ·  2h 40m
Replay

Codeshare partnerships

Marketing carriers selling tickets on this route under their own flight numbers

sells UAL 3787
sells UAL 3783
sells FFT 722
sells UAL 357
sells UAL 357
sells UAL 1

Typical aircraft

Observed via ADS-B on this route

AIRBUS Airbus A321 Neo
A21N
58%
of flights
BOEING Boeing 757-300
B753
12%
of flights
BOEING Boeing 737-900
B739
7%
of flights
AIRBUS Airbus A320 Neo
A20N
6%
of flights
BOEING Boeing 767-300
B763
6%
of flights
BOEING Boeing 737 MAX 9
B39M
4%
of flights
AIRBUS Airbus A321
A321
2%
of flights
AIRBUS Airbus A320
A320
1%
of flights

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