Houston (IAH) to Los Angeles (LAX)
Flight time
≈ 3h 33m
Bearing
287° W
Houston (IAH) to Los Angeles (LAX) is 1,376 miles (2,215 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAH–LAX
US DOT T-100 · filed dataIn April 2026, United Airlines operated the most departures, one of 6 carriers flying nonstop IAH–LAX; the Boeing 737 MAX 9 was the most common aircraft at 37% of departures; flights ran 88% full.
Departures
872
April 2026
Seats
148,112
both directions
Passengers
130,350
both directions
Load factor
88.0%
passengers ÷ seats
Who flies IAH–LAX?
United Airlines operated the most nonstop IAH–LAX departures in April 2026 (584), one of 6 carriers on the route.
- UA
United Airlines
584 departures · 104,520 seats
Share of departures67.0%88.9%
Load
- DL
Delta Air Lines
112 departures · 14,776 seats
Share of departures12.8%81.7%
Load
- F9
Frontier Airlines
60 departures · 12,794 seats
Share of departures6.9%91.0%
Load
- OO
SkyWest Airlines
60 departures · 4,554 seats
Share of departures6.9%85.7%
Load
- NK
Spirit Airlines
55 departures · 11,309 seats
Share of departures6.3%86.6%
Load
- AS
Alaska Airlines
1 departures · 159 seats
Share of departures0.1%54.1%
Load
What plane flies IAH–LAX?
In April 2026, the Boeing 737 MAX 9 flew 37% of IAH–LAX departures — more than any other aircraft type.
- Boeing 737 MAX 9
320 departures · 89.6% load
36.7% - Boeing 737-900ER
262 departures · 88.0% load
30.0% - Airbus A319
112 departures · 81.7% load
12.8% - Airbus A321neo
62 departures · 86.6% load
7.1% - Embraer E175
60 departures · 85.7% load
6.9% - Airbus A320
26 departures · 93.8% load
3.0% - Airbus A320neo
21 departures · 91.9% load
2.4% - Airbus A321
6 departures · 87.5% load
0.7% - Boeing 737-800
2 departures · 59.1% load
0.2% - Boeing 757-200
1 departures · 86.4% load
0.1%
How has IAH–LAX traffic changed?
Nonstop IAH–LAX departures fell from 898 in May 2025 to 872 in April 2026.
Monthly nonstop IAH–LAX traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
898 departures · 136,809 passengers
87.1%
Load
June 2025
846 departures · 141,792 passengers
92.5%
Load
July 2025
892 departures · 150,566 passengers
93.1%
Load
August 2025
878 departures · 129,252 passengers
87.9%
Load
September 2025
882 departures · 119,558 passengers
83.4%
Load
October 2025
990 departures · 140,881 passengers
86.1%
Load
November 2025
888 departures · 131,682 passengers
85.6%
Load
December 2025
893 departures · 142,579 passengers
90.0%
Load
January 2026
864 departures · 127,219 passengers
83.5%
Load
February 2026
799 departures · 116,075 passengers
84.9%
Load
March 2026
881 departures · 129,349 passengers
87.7%
Load
April 2026
872 departures · 130,350 passengers
88.0%
Load
By direction
The DOT files each direction separately — they rarely match.
IAH → LAX
87.7% full
437 departures · 64,997 passengers
LAX → IAH
88.3% full
435 departures · 65,353 passengers
Nonstop IAH–LAX 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 Los Angeles (LAX)?
IAH to LAX is 1,376 miles (2,215 km / 1,196 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAH to LAX?
A nonstop covers the 1,376-mile great-circle distance in roughly 3h 33m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAH–LAX?
In April 2026, the Boeing 737 MAX 9 flew the largest share of departures (36.7%), followed by the Boeing 737-900ER (30.0%).
What mileage do I earn flying IAH–LAX?
Distance-based programs credit off the 1,376-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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