Cancun (CUN) – Houston (IAH)

Distance, flight time and the airlines that fly it, from open data.
Distance
1,305 km
811 mi · 705 nm
Flight time
2 h 27 min / 2 h 18 min
Average gate to gate: CUN → IAH / back
Time difference
1 h / none
January / July
CO2 per passenger
164 kg
One way, economy, incl. RF (97 kg CO2 only)
Passengers / year
669,542
Aug 2025 – Jul 2026 · −6.2%
Flights / week
92
Both directions, average
Seats filled
77%
873,167 seats a year
Airlines nonstop
4
UA, NK, F9

Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources

Great circle from CUN to IAHCUNIAH
Shortest path over the earth's surface (great circle). Real flights bend around weather, winds and airspace.

The way there

Heading from CUN
321°
Heading from IAH
137°
Halfway point
25.58, -90.95
Great-circle km
1,307 km (sphere, for EU261)
In the air CUN → IAH
1 h 58 min
In the air IAH → CUN
1 h 48 min
Clocks
1 h in January, none in July

The estimate for a route without real times is 2 h 20 min; how it is worked out is on Sources.

Passengers per month, both directions (Aug 2025 – Jul 2026)Busiest: July 2026: 76,651 passengers
050K100KAugSepOctNovDecJanFebMarAprMayJunJul76.7K
Show as a table
Month Passengers
Aug 202572,575
Sep 202543,762
Oct 202553,349
Nov 202552,906
Dec 202555,076
Jan 202646,854
Feb 202643,047
Mar 202657,703
Apr 202644,224
May 202651,186
Jun 202672,209
Jul 202676,651
Flights per month, both directions (Aug 2025 – Jul 2026)Busiest: August 2025: 480 flights
0200400600Aug480SepOctNovDecJanFebMarAprMayJunJul
Show as a table
Month Flights
Aug 2025480
Sep 2025342
Oct 2025372
Nov 2025410
Dec 2025427
Jan 2026370
Feb 2026324
Mar 2026470
Apr 2026363
May 2026346
Jun 2026422
Jul 2026436

Airlines flying CUN–IAH nonstop

Airline Flights / week Share of passengers
UAUnited Air Lines78
85%
NKSpirit Air Lines8.3
8%
F9Frontier Airlines5.1
7%
AAAmerican Airlines0.3
0%

Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources

Aircraft on this route

  • Boeing B737 Max 900 · 2,424 flights
  • Boeing 737-900ER · 1,582 flights
  • Airbus Industrie A321Neoxlr · 239 flights
  • Airbus Industrie A320-100/200 · 206 flights
  • Airbus Industrie A321-200n · 169 flights
  • Airbus Industrie A320-200n · 97 flights
  • Boeing 737-900 · 30 flights
  • Boeing B737 Max 800 · 7 flights

Also carried: 56 tonnes of freight and 0 tonnes of mail a year (passenger and cargo flights).

Delay compensation (EU261 / UK261)

Measured by great-circle distance: 1,307 km.

Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).

Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.

Every airport pair between Cancun and Houston

IAHHOU
CUN1,3051,273

Kilometres. Linked numbers have a page of their own. All Houston airports

More routes from CUN

Route Distance Passengers / year
CUN → DFW1,654 km 978,093
CUN → ORD2,324 km 798,030
CUN → ATL1,416 km 732,284
CUN → JFK2,501 km 647,999
CUN → LAX3,410 km 525,245
CUN → DEN2,686 km 490,393
CUN → MIA854 km 466,106
CUN → EWR2,488 km 456,223
CUN → CLT1,674 km 444,706
CUN → MSP2,708 km 389,931

More routes from IAH

Route Distance Passengers / year
IAH → ORD1,489 km 1,711,056
IAH → DEN1,387 km 1,641,444
IAH → LAX2,219 km 1,544,652
IAH → ATL1,109 km 1,430,755
IAH → DFW361 km 1,257,452
IAH → SFO2,632 km 1,223,236
IAH → MCO1,375 km 1,147,728
IAH → EWR2,252 km 1,135,261
IAH → LGA2,279 km 1,049,227
IAH → LAS1,966 km 1,028,809

Questions

Cancun (CUN) and Houston (IAH) are 1,305 km (811 miles, 705 nautical miles) apart, measured along the shortest path over the earth's surface.