Charleston (CHS) to Houston (IAH)
Flight time
≈ 2h 39m
Bearing
262° W
Charleston (CHS) to Houston (IAH) is 923 miles (1,486 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies CHS–IAH
Filed traffic dataIn July 2026, Mesa Airlines operated the most departures, one of 3 carriers flying nonstop CHS–IAH; the Embraer E175 was the most common aircraft at 54% of departures; flights ran 80% full.
Departures
113
July 2026
Seats
13,134
both directions
Passengers
10,466
both directions
Load factor
79.7%
RPM ÷ ASM
Who flies CHS–IAH?
Mesa Airlines operated the most nonstop CHS–IAH departures in July 2026 (61), one of 3 carriers on the route.
- YV
61 departures · 4,366 seats
Share of departures54.0%88.6%
Load
- UA
51 departures · 8,596 seats
Share of departures45.1%74.7%
Load
- AA
1 departures · 172 seats
Share of departures0.9%99.4%
Load
What plane flies CHS–IAH?
In July 2026, the Embraer E175 flew 54% of CHS–IAH departures — more than any other aircraft type.
- Embraer E175
61 departures · 88.6% load
54.0% - Boeing 737-800
42 departures · 76.3% load
37.2% - Boeing 737-900ER
6 departures · 73.6% load
5.3% - Boeing 737 MAX 9
4 departures · 67.7% load
3.5%
How has CHS–IAH traffic changed?
Nonstop CHS–IAH departures fell from 115 in August 2025 to 113 in July 2026.
Monthly nonstop CHS–IAH traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
115 departures · 9,220 passengers
76.8%
Load
September 2025
104 departures · 6,762 passengers
87.2%
Load
October 2025
116 departures · 7,188 passengers
84.2%
Load
November 2025
118 departures · 6,953 passengers
79.4%
Load
December 2025
112 departures · 7,184 passengers
85.4%
Load
January 2026
111 departures · 7,466 passengers
66.8%
Load
February 2026
106 departures · 8,351 passengers
80.5%
Load
March 2026
122 departures · 9,696 passengers
77.6%
Load
April 2026
119 departures · 10,208 passengers
81.3%
Load
May 2026
121 departures · 10,119 passengers
78.4%
Load
June 2026
111 departures · 10,710 passengers
84.4%
Load
July 2026
113 departures · 10,466 passengers
79.7%
Load
By direction
Each direction is filed separately — they rarely match.
IAH → CHS
76.1% full
57 departures · 5,101 passengers
CHS → IAH
83.4% full
56 departures · 5,365 passengers
Nonstop CHS–IAH traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Charleston (CHS) from Houston (IAH)?
CHS to IAH is 923 miles (1,486 km / 802 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from CHS to IAH?
A nonstop covers the 923-mile great-circle distance in roughly 2h 39m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies CHS–IAH?
In July 2026, the Embraer E175 flew the largest share of departures (54.0%), followed by the Boeing 737-800 (37.2%).
What mileage do I earn flying CHS–IAH?
Distance-based programs credit off the 923-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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