Houston to San Luis Potosí (IAH–SLP) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
IAH–SLP is served by 2 airlines with nonstop service. United Airlines and Volaris lead the route. The flight covers 636 miles in approximately 1h 51m. Beyond nonstop, 8 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 21 | 73G, E75L | 2h01-2h06 | Star Alliance | – | |
| Y4 Volaris | 3 | A20N | 1h51 | – | – |
Weekly Schedule Pattern
Connection Landscape
Travel Essentials
IAH: CDT · SLP: CST
When it's 6:00 PM in Houston, it's 5:00 PM in San Luis Potosí.
US citizens enter Mexico visa-free for up to 180 days for tourism. Complete the immigration form (FMM) online or on arrival; the online version speeds up processing. Passport must be valid for the duration of stay.
Duty-free allowances: USD 500 in goods. Mexico prohibits importing certain foods and medications without documentation. Declare cash over USD 10,000.
IAH has no direct rail link to downtown Houston. The IAH Express bus runs from Houston Amtrak/Greyhound station via Park & Ride to Terminal C (60–90 min, $1.25 with METRO Q card). This is the only transit option; Houston's rail network does not reach the airport.Taxis from downtown Houston cost $50–70 and take 40–60 minutes. Ride-hails (Uber, Lyft) are typically $35–55. IAH sits 23 miles north of downtown on the North Freeway (I-45); traffic is heavy during morning and evening rush. Remote economy parking lots serve all terminals via shuttle.
IAH–SLP Quick Facts
Frequently Asked Questions
Flights from IAH to SLP
George Bush Intercontinental Airport (IAH) and Ponciano Arriaga International Airport (SLP) are connected by nonstop service from United Airlines and Volaris. With 24 weekly departures, this is a well served route.
IAH to SLP Flight Duration and Schedule
Nonstop flight time from IAH to SLP ranges from 1 hours 51 minutes to 2 hours 6 minutes. The route covers a distance of 636 miles (1,024 km). There are approximately 24 weekly flights outbound and 24 return, totaling 48 flights per week in both directions.
Connecting Options and Alternatives
8 one-stop connections are available, with the fastest taking approximately 4 hours via QRO. Two-stop connections are also available via intermediate hubs.