About the Houston to Cancun route
Houston Bush Intercontinental is United's gateway to Mexico and Latin America, and Cancun is one of its busiest routes from there. The nonstop takes around two and a half hours, so it's an easy long weekend.
| From | George Bush Intercontinental Airport (IAH) |
|---|---|
| To | Cancún International Airport (CUN), Mexico |
| Nonstop airline | United Airlines (other airlines may also fly this route; your search shows them all) |
| Typical nonstop time | about 2 hours 20 minutes to 2 hours 40 minutes |
| Travel documents | Valid passport book required for US citizens |
Schedule details checked October 2026 from published airline schedules. Times change by season; the live search above always shows the current schedule.
Before you book
- You'll need a valid passport book; the passport card doesn't work for international flights.
- Mexico isn't one of the routes where United Basic Economy includes a carry-on, so on that fare you'll have a personal item only unless you pay for a checked bag.
- Houston has a second airport, Hobby (HOU). Searching both can turn up different airlines and prices.
Read up on United fares
Common questions
How long is the nonstop flight from Houston to Cancun?
United Airlines flies this route nonstop in about 2 hours 20 minutes to 2 hours 40 minutes, based on published schedules checked in October 2026. Exact times for your date show when you search.
Can I book United flights from Houston to Cancun with SlickFlight?
Yes. SlickFlight is an independent travel agency that sells tickets on United and other airlines. Search above for live fares, or a SlickFlight travel planner can book the trip with you by phone. Changes to tickets bought directly from United are handled by United.
Does United Basic Economy include a carry-on to Cancun?
No. United allows a carry-on on Basic Economy only on flights to South America, across the Atlantic or across the Pacific. On flights to Mexico, Basic Economy means a personal item that fits under the seat.
Do I need a passport to fly from Houston to Cancun?
Yes. US citizens need a valid passport book for air travel to Mexico. Check the State Department's Mexico page for current entry requirements before you travel.
More popular routes
Planning a bigger trip?
Families, groups, multi-city plans or a mix of cabins: a SlickFlight travel planner can put the whole itinerary together with you.