Houston (IAH) to Las Vegas (LAS)
Flight time
≈ 3h 14m
Bearing
295° NW
Houston (IAH) to Las Vegas (LAS) is 1,220 miles (1,963 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAH–LAS
US DOT T-100 · filed dataIn April 2026, United Airlines operated the most departures, one of 3 carriers flying nonstop IAH–LAS; the Boeing 737 MAX 9 was the most common aircraft at 20% of departures; flights ran 80% full.
Departures
580
April 2026
Seats
107,532
both directions
Passengers
85,730
both directions
Load factor
79.7%
passengers ÷ seats
Who flies IAH–LAS?
United Airlines operated the most nonstop IAH–LAS departures in April 2026 (434), one of 3 carriers on the route.
- UA
United Airlines
434 departures · 76,074 seats
Share of departures74.8%79.5%
Load
- NK
Spirit Airlines
76 departures · 15,480 seats
Share of departures13.1%77.5%
Load
- F9
Frontier Airlines
70 departures · 15,978 seats
Share of departures12.1%83.2%
Load
What plane flies IAH–LAS?
In April 2026, the Boeing 737 MAX 9 flew 20% of IAH–LAS departures — more than any other aircraft type.
- Boeing 737 MAX 9
117 departures · 82.4% load
20.2% - Boeing 737-900ER
97 departures · 78.2% load
16.7% - Boeing 737-900
96 departures · 75.5% load
16.6% - Boeing 737-800
69 departures · 83.3% load
11.9% - Airbus A321neo
63 departures · 77.6% load
10.9% - Boeing 737 MAX 8
55 departures · 77.7% load
9.5% - Airbus A321
37 departures · 80.3% load
6.4% - Airbus A320
32 departures · 85.6% load
5.5% - Airbus A320neo
14 departures · 85.1% load
2.4%
How has IAH–LAS traffic changed?
Nonstop IAH–LAS departures fell from 622 in May 2025 to 580 in April 2026.
Monthly nonstop IAH–LAS traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
622 departures · 87,472 passengers
78.5%
Load
June 2025
564 departures · 86,484 passengers
85.3%
Load
July 2025
568 departures · 84,362 passengers
83.1%
Load
August 2025
567 departures · 83,335 passengers
79.6%
Load
September 2025
509 departures · 79,479 passengers
82.1%
Load
October 2025
584 departures · 89,535 passengers
83.1%
Load
November 2025
624 departures · 93,933 passengers
81.0%
Load
December 2025
618 departures · 89,391 passengers
81.0%
Load
January 2026
559 departures · 80,591 passengers
80.2%
Load
February 2026
575 departures · 86,084 passengers
83.9%
Load
March 2026
629 departures · 97,515 passengers
86.5%
Load
April 2026
580 departures · 85,730 passengers
79.7%
Load
By direction
The DOT files each direction separately — they rarely match.
IAH → LAS
79.8% full
291 departures · 42,880 passengers
LAS → IAH
79.7% full
289 departures · 42,850 passengers
Nonstop IAH–LAS traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Houston (IAH) from Las Vegas (LAS)?
IAH to LAS is 1,220 miles (1,963 km / 1,060 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAH to LAS?
A nonstop covers the 1,220-mile great-circle distance in roughly 3h 14m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAH–LAS?
In April 2026, the Boeing 737 MAX 9 flew the largest share of departures (20.2%), followed by the Boeing 737-900ER (16.7%).
What mileage do I earn flying IAH–LAS?
Distance-based programs credit off the 1,220-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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