Cancún (CUN) to Houston (IAH)
Flight time
≈ 2h 25m
Bearing
321° NW
Cancún (CUN) to Houston (IAH) is 812 miles (1,307 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies CUN–IAH
Filed traffic dataIn July 2026, United Airlines operated the most departures, one of 3 carriers flying nonstop CUN–IAH; the Boeing 737 MAX 9 was the most common aircraft at 55% of departures; flights ran 94% full.
Departures
436
July 2026
Seats
81,832
both directions
Passengers
76,651
both directions
Load factor
93.7%
RPM ÷ ASM
Who flies CUN–IAH?
United Airlines operated the most nonstop CUN–IAH departures in July 2026 (372), one of 3 carriers on the route.
- UA
372 departures · 66,630 seats
Share of departures85.3%93.3%
Load
- F9
62 departures · 14,840 seats
Share of departures14.2%95.8%
Load
- AA
2 departures · 362 seats
Share of departures0.5%72.9%
Load
What plane flies CUN–IAH?
In July 2026, the Boeing 737 MAX 9 flew 55% of CUN–IAH departures — more than any other aircraft type.
- Boeing 737 MAX 9
241 departures · 94.3% load
55.3% - Boeing 737-900ER
127 departures · 91.6% load
29.1% - Airbus A321neo
60 departures · 95.2% load
13.8% - Airbus A321
5 departures · 97.2% load
1.1% - Boeing 737-900
2 departures · 98.9% load
0.5% - Boeing 737-800
1 departures · 48.8% load
0.2%
How has CUN–IAH traffic changed?
Nonstop CUN–IAH departures fell from 480 in August 2025 to 436 in July 2026.
Monthly nonstop CUN–IAH traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
480 departures · 72,575 passengers
80.5%
Load
September 2025
342 departures · 43,762 passengers
69.4%
Load
October 2025
372 departures · 53,349 passengers
77.8%
Load
November 2025
410 departures · 52,906 passengers
70.0%
Load
December 2025
427 departures · 55,076 passengers
72.0%
Load
January 2026
370 departures · 46,854 passengers
70.3%
Load
February 2026
324 departures · 43,047 passengers
74.4%
Load
March 2026
470 departures · 57,703 passengers
68.1%
Load
April 2026
363 departures · 44,224 passengers
67.0%
Load
May 2026
346 departures · 51,186 passengers
81.0%
Load
June 2026
422 departures · 72,209 passengers
91.4%
Load
July 2026
436 departures · 76,651 passengers
93.7%
Load
By direction
Each direction is filed separately — they rarely match.
CUN → IAH
92.6% full
218 departures · 37,881 passengers
IAH → CUN
94.8% full
218 departures · 38,770 passengers
Nonstop CUN–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
Cancún
MX
Cancún International Airport
Coordinates
21.04°N, 86.87°W
Hemisphere
N · W
Frequently asked
How far is Cancún (CUN) from Houston (IAH)?
CUN to IAH is 812 miles (1,307 km / 706 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from CUN to IAH?
A nonstop covers the 812-mile great-circle distance in roughly 2h 25m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies CUN–IAH?
In July 2026, the Boeing 737 MAX 9 flew the largest share of departures (55.3%), followed by the Boeing 737-900ER (29.1%).
What mileage do I earn flying CUN–IAH?
Distance-based programs credit off the 812-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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