Houston (IAH) to Miami (MIA)
Flight time
≈ 2h 44m
Bearing
104° E
Houston (IAH) to Miami (MIA) is 963 miles (1,549 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAH–MIA
US DOT T-100 · filed dataIn April 2026, American Airlines operated the most departures, one of 6 carriers flying nonstop IAH–MIA; the Boeing 737-800 was the most common aircraft at 46% of departures; flights ran 70% full.
Departures
613
April 2026
Seats
105,413
both directions
Passengers
73,711
both directions
Load factor
69.9%
passengers ÷ seats
Who flies IAH–MIA?
American Airlines operated the most nonstop IAH–MIA departures in April 2026 (265), one of 6 carriers on the route.
- AA
American Airlines
265 departures · 45,068 seats
Share of departures43.2%61.1%
Load
- UA
United Airlines
231 departures · 40,101 seats
Share of departures37.7%74.5%
Load
- NK
Spirit Airlines
64 departures · 13,202 seats
Share of departures10.4%81.3%
Load
- F9
Frontier Airlines
27 departures · 5,066 seats
Share of departures4.4%79.2%
Load
- MQ
Envoy Air
18 departures · 1,368 seats
Share of departures2.9%77.6%
Load
- YX
Republic Airways
8 departures · 608 seats
Share of departures1.3%85.2%
Load
What plane flies IAH–MIA?
In April 2026, the Boeing 737-800 flew 46% of IAH–MIA departures — more than any other aircraft type.
- Boeing 737-800
280 departures · 66.3% load
45.7% - Boeing 737 MAX 9
100 departures · 73.2% load
16.3% - Boeing 737 MAX 8
55 departures · 66.1% load
9.0% - Boeing 737-900ER
35 departures · 71.8% load
5.7% - Airbus A321
35 departures · 64.9% load
5.7% - Embraer E175
26 departures · 80.0% load
4.2% - Airbus A320neo
23 departures · 78.1% load
3.8% - Airbus A320
22 departures · 87.9% load
3.6% - Airbus A321neo
21 departures · 82.4% load
3.4% - Airbus A319
16 departures · 66.9% load
2.6%
How has IAH–MIA traffic changed?
Nonstop IAH–MIA departures fell from 688 in May 2025 to 613 in April 2026.
Monthly nonstop IAH–MIA traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
688 departures · 86,049 passengers
75.2%
Load
June 2025
595 departures · 87,763 passengers
81.9%
Load
July 2025
611 departures · 90,668 passengers
82.8%
Load
August 2025
593 departures · 80,243 passengers
76.3%
Load
September 2025
553 departures · 67,025 passengers
73.2%
Load
October 2025
609 departures · 78,384 passengers
75.5%
Load
November 2025
656 departures · 82,532 passengers
75.0%
Load
December 2025
676 departures · 88,590 passengers
79.4%
Load
January 2026
670 departures · 85,303 passengers
75.0%
Load
February 2026
611 departures · 75,426 passengers
72.2%
Load
March 2026
671 departures · 88,864 passengers
78.4%
Load
April 2026
613 departures · 73,711 passengers
69.9%
Load
By direction
The DOT files each direction separately — they rarely match.
MIA → IAH
70.6% full
307 departures · 37,153 passengers
IAH → MIA
69.3% full
306 departures · 36,558 passengers
Nonstop IAH–MIA 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 Miami (MIA)?
IAH to MIA is 963 miles (1,549 km / 837 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAH to MIA?
A nonstop covers the 963-mile great-circle distance in roughly 2h 44m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAH–MIA?
In April 2026, the Boeing 737-800 flew the largest share of departures (45.7%), followed by the Boeing 737 MAX 9 (16.3%).
What mileage do I earn flying IAH–MIA?
Distance-based programs credit off the 963-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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