Houston (IAH) to Cancún (CUN) is about 812 miles (1,307 km), roughly 2 h 05 min of flying time. Cancún is 1 hour ahead of Houston in January, and on the same time as Houston in July.
When is the cheapest time to fly from Houston to Cancún?
Lowest round-trip fares found in recent searches for each month (7 to 14 day trips). Pick a cheap month, then confirm the live price.
Are there nearby airports that could be cheaper?
Fares at a neighboring airport are sometimes lower. Worth comparing on this route:
- HOUWilliam P. Hobby Airport closer to downtown Houston.
What do I need before flying to Cancún?
This is an international trip, so you need a valid passport. Entry rules, visas and health requirements change, so check the official US State Department page before you book: Mexico travel information.
Plan how you will stay connected; an eSIM is usually cheaper than your carrier's roaming plan. See travel services.
Stay connected in Cancún
An eSIM gives you local data from the moment you land, usually far cheaper than roaming.
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Things to do in Cancún
Popular attractions and tickets, most with free cancellation.
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Frequently asked questions
How far is Houston from Cancún by plane?
The great-circle distance between IAH and CUN is about 812 miles (1,307 km).
How long does it take to fly from Houston to Cancún?
About 2 h 05 min of flying time based on distance, if a nonstop flight operates. Actual schedules vary by airline and wind, and itineraries with connections take longer.
What is the time difference between Houston and Cancún?
Cancún is 1 hour ahead of Houston in January, and on the same time as Houston in July.
Distance and flying time are calculated from airport coordinates (OurAirports data) and a typical cruise speed; they are planning estimates, not schedules. Updated 2026-10-28.
