San Luis Potosí to Houston (SLP–IAH) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
SLP–IAH is served by 2 airlines with nonstop service. United Airlines and Volaris lead the route. The flight covers 636 miles in approximately 1h 53m. Beyond nonstop, 5 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 14 | E75L | 1h57-1h59 | – | Star Alliance | – |
| Y4 Volaris | 3 | 320 | 1h53 | – | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Houston from San Luis Potosí
| Metric | SLP→IAH | BJX→IAH | AGU→IAH |
|---|---|---|---|
| Distance from SLP | – | 94 mi | 97 mi |
| Nonstop airlines | 2 | 3 | 2 |
| Weekly flights | 17 | 68 | 21 |
| Flight time | 1h 53m | 2h | 2h 3m |
Travel Essentials
SLP: CST · IAH: CDT
When it's 6:00 PM in San Luis Potosí, it's 7:00 PM in Houston.
Mexican passport holders need a B1/B2 visa to enter the United States. The visa is obtained through a US embassy or consulate and requires an in-person interview. B1/B2 visas are typically issued for 10 years with stays of up to 6 months per entry.
For land crossings within the border zone, a Border Crossing Card (BCC) is an alternative. The BCC costs USD 185 and is valid for 10 years. It allows entry up to 25 miles from the border in Texas and California, or 55 miles in New Mexico and Arizona. Travel by air or beyond the border zone requires a full B1/B2 visa with a valid passport.
No direct rail from IAH. The METRO bus 102 (IAH Express) runs to downtown Houston's transit center (60–90 min, $1.25). Taxis to downtown Houston cost $50–70. Ride-hails pick up at the designated Rideshare zones outside baggage claim on the lower level.IAH has five terminals (A–E) connected by an underground tunnel with trams. Terminal D handles international arrivals. Rental car agencies are in a consolidated facility adjacent to Terminal C; a free IAH Connector bus runs between terminals and the rental car center. The Galleria / Uptown area costs $35–50 by ride-hail.
Humid subtropical climate. Hot, humid, and wet for much of the year. Summers are brutal (33–38°C) with high humidity and near-daily afternoon thunderstorms. Severe storms with hail and high winds regularly cause ground stops from April through September. Houston's flooding risk is significant. Heavy rain events, including tropical system remnants, have flooded airport roads, cutting off surface access even when the airport itself remains operational.
Winters are mild (5–18°C) with occasional ice storms. These are rare but highly disruptive when they occur. Hurricane season (June–November) requires monitoring for Gulf storms. October through March has the best flying weather.
SLP–IAH Quick Facts
Frequently Asked Questions
Flights from SLP to IAH
Ponciano Arriaga International Airport (SLP) and George Bush Intercontinental Airport (IAH) are connected by nonstop service from United Airlines and Volaris. With 17 weekly departures, this is a well served route.
SLP to IAH Flight Duration and Schedule
Nonstop flight time from SLP to IAH ranges from 1 hours 53 minutes to 1 hours 59 minutes. The route covers a distance of 636 miles (1,024 km). There are approximately 17 weekly flights outbound and 17 return, totaling 34 flights per week in both directions.
Connecting Options and Alternatives
5 one-stop connections are available, with the fastest taking approximately 10 hours via CUN. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Silao (BJX), Aguascalientes (AGU) and Querétaro (QRO).