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 May 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 81% full.
Departures
346
May 2026
Seats
63,225
both directions
Passengers
51,186
both directions
Load factor
81.0%
RPM ÷ ASM
Who flies CUN–IAH?
United Airlines operated the most nonstop CUN–IAH departures in May 2026 (321), one of 3 carriers on the route.
- UA
321 departures · 57,459 seats
Share of departures92.8%80.6%
Load
- F9
22 departures · 5,190 seats
Share of departures6.4%84.3%
Load
- AA
3 departures · 576 seats
Share of departures0.9%88.5%
Load
What plane flies CUN–IAH?
In May 2026, the Boeing 737 MAX 9 flew 55% of CUN–IAH departures — more than any other aircraft type.
- Boeing 737 MAX 9
190 departures · 81.3% load
54.9% - Boeing 737-900ER
129 departures · 79.8% load
37.3% - Airbus A321neo
14 departures · 82.1% load
4.0% - Airbus A321
11 departures · 88.2% load
3.2% - Boeing 737-900
2 departures · 65.6% load
0.6%
How has CUN–IAH traffic changed?
Nonstop CUN–IAH departures fell from 539 in June 2025 to 346 in May 2026.
Monthly nonstop CUN–IAH traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
539 departures · 90,769 passengers
90.6%
Load
July 2025
565 departures · 96,763 passengers
90.2%
Load
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
By direction
Each direction is filed separately — they rarely match.
CUN → IAH
77.0% full
173 departures · 24,354 passengers
IAH → CUN
84.9% full
173 departures · 26,832 passengers
Nonstop CUN–IAH 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
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 May 2026, the Boeing 737 MAX 9 flew the largest share of departures (54.9%), followed by the Boeing 737-900ER (37.3%).
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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