Houston (IAH) to Salt Lake City (SLC)
Flight time
≈ 3h 11m
Bearing
313° NW
Houston (IAH) to Salt Lake City (SLC) is 1,195 miles (1,923 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAH–SLC
Filed traffic dataIn May 2026, Delta Air Lines operated the most departures, one of 3 carriers flying nonstop IAH–SLC; the Airbus A220-100 was the most common aircraft at 45% of departures; flights ran 85% full.
Departures
353
May 2026
Seats
41,759
both directions
Passengers
35,502
both directions
Load factor
85.0%
RPM ÷ ASM
Who flies IAH–SLC?
Delta Air Lines operated the most nonstop IAH–SLC departures in May 2026 (175), one of 3 carriers on the route.
- DL
175 departures · 19,487 seats
Share of departures49.6%88.7%
Load
- UA
122 departures · 18,280 seats
Share of departures34.6%81.8%
Load
- YV
56 departures · 3,992 seats
Share of departures15.9%81.7%
Load
What plane flies IAH–SLC?
In May 2026, the Airbus A220-100 flew 45% of IAH–SLC departures — more than any other aircraft type.
- Airbus A220-100
158 departures · 89.5% load
44.8% - Airbus A320
60 departures · 84.0% load
17.0% - Embraer E175
56 departures · 81.7% load
15.9% - Boeing 737-700
30 departures · 85.0% load
8.5% - Airbus A220-300
14 departures · 81.9% load
4.0% - Boeing 737 MAX 9
10 departures · 75.0% load
2.8% - Boeing 737-900
8 departures · 79.6% load
2.3% - Airbus A319
7 departures · 77.8% load
2.0% - Airbus A321neo
4 departures · 65.1% load
1.1% - Boeing 737-800
4 departures · 86.0% load
1.1% - Boeing 737-900ER
2 departures · 81.8% load
0.6%
How has IAH–SLC traffic changed?
Nonstop IAH–SLC departures rose from 343 in June 2025 to 353 in May 2026.
Monthly nonstop IAH–SLC traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
343 departures · 38,693 passengers
87.8%
Load
July 2025
358 departures · 38,409 passengers
85.3%
Load
August 2025
347 departures · 35,787 passengers
76.9%
Load
September 2025
336 departures · 35,403 passengers
77.6%
Load
October 2025
353 departures · 36,032 passengers
81.9%
Load
November 2025
308 departures · 29,954 passengers
76.3%
Load
December 2025
414 departures · 42,786 passengers
81.8%
Load
January 2026
396 departures · 39,587 passengers
74.4%
Load
February 2026
369 departures · 38,908 passengers
82.5%
Load
March 2026
420 departures · 42,060 passengers
81.0%
Load
April 2026
350 departures · 34,349 passengers
78.4%
Load
May 2026
353 departures · 35,502 passengers
85.0%
Load
By direction
Each direction is filed separately — they rarely match.
SLC → IAH
83.8% full
177 departures · 17,550 passengers
IAH → SLC
86.3% full
176 departures · 17,952 passengers
Nonstop IAH–SLC traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Houston (IAH) from Salt Lake City (SLC)?
IAH to SLC is 1,195 miles (1,923 km / 1,038 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAH to SLC?
A nonstop covers the 1,195-mile great-circle distance in roughly 3h 11m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAH–SLC?
In May 2026, the Airbus A220-100 flew the largest share of departures (44.8%), followed by the Airbus A320 (17.0%).
What mileage do I earn flying IAH–SLC?
Distance-based programs credit off the 1,195-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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